CN106059349A - Three-phase electric rectification circuit and three-phase electric rectification circuit time sequence control method - Google Patents
Three-phase electric rectification circuit and three-phase electric rectification circuit time sequence control method Download PDFInfo
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- CN106059349A CN106059349A CN201610594341.5A CN201610594341A CN106059349A CN 106059349 A CN106059349 A CN 106059349A CN 201610594341 A CN201610594341 A CN 201610594341A CN 106059349 A CN106059349 A CN 106059349A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses a three-phase electric rectification circuit and a three-phase electric rectification circuit time sequence control method, with the object to address the problem that the impulse current in a three-phase electric rectification circuit causes damage to switches. The three-phase electric rectification circuit comprises a three-phase AC input circuit, a rectifier bridge, electrolytic capacitors, a control circuit and a zero line. A first electrolytic capacitor and a second electrolytic capacitor are in series connection between the positive pole and the negative pole of the rectifier bridge DC output. The zero line is connected to the connection parts of the first electrolytic capacitor and the second electrolytic capacitor through a fourth switch and a first current-limiting resistor. The three-phase AC input circuit is connected to the bridge rectifier through a first switch, a second switch, and a third switch respectively. The control circuit, T1 after three-phase AC power is input, controls one of the three switches and the fourth switch to close. When the electrolytic capacitors are charged full, the fourth switch is turned off and the other two remaining switches of the three switches are also closed. By charging the electrolytic capacitors in advance to make sure that the voltage at both ends of the electrolytic capacitors is higher than three-phase electric rectification voltage, damage of impulse current generated from the closing of a main loop circuit to switches can be avoided.
Description
Technical field
The invention belongs to three-phase electricity commutation technique field, specifically, relate to a kind of three-phase electricity rectification circuit and three-phase
Electric rectification circuit sequence control method.
Background technology
Within air-conditioning systems, the rectifier bridge N in three-phase electricity rectification circuit is responsible for three-phase alternating current L1, L2 and L3 of input
After being rectified into unidirectional current, export after arriving electrochemical capacitor C smothing filtering, among these, as shown in Figure 1 or 2, three-phase electricity rectified current
Need during the initialization of road first to charge for electrochemical capacitor C, be closed again the switch K of major loop after charging complete, it is achieved three-phase electricity
AC-DC conversion.The unidirectional current changed out needed to increase current-limiting resistance R, this current limliting before arriving electrochemical capacitor C smothing filtering
Resistance can be placed on AC can also be placed on DC side, as it is shown in figure 1, be placed on the application shape of AC for current-limiting resistance R
Formula, as in figure 2 it is shown, be placed on the application of DC side for current-limiting resistance R.
As depicted in figs. 1 and 2, this circuit has a disadvantage in that the dividing potential drop effect due to current-limiting resistance, is electrolysed after charging
The voltage at electric capacity two ends can be less than three-phase electricity commutating voltage, when three-phase electricity major loop switch K Guan Bi, can produce bigger impact
Electric current, switch can be caused damage by this dash current, can cause switch adhesion or burn time serious.
Summary of the invention
This application provides a kind of three-phase electricity rectification circuit and three-phase electricity rectification circuit sequential control method, solve existing three
There is dash current to switching hurtful technical problem in phase electric rectification circuit.
For solving above-mentioned technical problem, the application is achieved by the following technical solutions:
A kind of three-phase electricity rectification circuit is proposed, including three-phase alternating current input, rectifier bridge and electrochemical capacitor；Described three-phase alternating current
Output includes the first cross streams electricity input, the second cross streams electricity input and the input of third phase alternating current；The direct current of described rectifier bridge
Connect described electrochemical capacitor between the both positive and negative polarity of output；Also include control circuit and zero line；Described electrochemical capacitor includes series connection
First electrochemical capacitor and the second electrochemical capacitor；Described zero line connects described first electrolysis by the 4th switch and the first current-limiting resistance
Electric capacity and the junction of described second electrochemical capacitor series connection；Described first cross streams electricity enters through the first switch and connects described whole
Stream bridge, described second cross streams electricity enters through second switch and connects described rectifier bridge, and described third phase alternating current enters through
3rd switch connects described rectifier bridge；Described control circuit, after the T1 time after inputting at described three-phase alternating current, controls
One of described first switch, described second switch and described 3rd switch Guan Bi, and control described 4th switch Guan Bi, make
Obtain described first electrochemical capacitor and described second electrochemical capacitor charging, and control at described first electrochemical capacitor and described second electricity
Remaining two switches in described first switch, described second switch and described 3rd switch are closed after solving electric capacity charging complete,
And disconnect described 4th switch.
Propose a kind of three-phase electricity rectification circuit sequential control method, be applied in three-phase electricity rectification circuit, described three-phase electricity
Rectification circuit includes three-phase alternating current input, rectifier bridge and electrochemical capacitor；The output of described three-phase alternating current includes the first cross streams
Electricity input, the second cross streams electricity input and the input of third phase alternating current；Go here and there between the both positive and negative polarity of the direct current output of described rectifier bridge
Join described electrochemical capacitor；Also include control circuit and zero line；Described electrochemical capacitor includes first electrochemical capacitor and second of series connection
Electrochemical capacitor；Described zero line connects described first electrochemical capacitor and described second electrolysis by the 4th switch and the first current-limiting resistance
The junction of capacitances in series；Described first cross streams electricity enters through the first switch and connects described rectifier bridge, and described second intersects
Stream electricity enters through second switch and connects described rectifier bridge, and described third phase alternating current enters through the 3rd switch and connects described whole
Stream bridge；Described control circuit, for described three-phase alternating current input after the T1 time after, control described first switch, described
One of second switch and described 3rd switch close, and control described 4th switch Guan Bi so that described first electrolysis electricity
Hold and described second electrochemical capacitor charging, and control after described first electrochemical capacitor and described second electrochemical capacitor charging complete
Close remaining two switches in described first switch, described second switch and described 3rd switch, and disconnect the described 4th
Switch；Method includes: after the T1 time after described three-phase alternating current inputs, and controls described first switch, described second switch
Close with one of described 3rd switch, and control described 4th switch Guan Bi so that described first electrochemical capacitor and described
Second electrochemical capacitor charging；Control after described first electrochemical capacitor and described second electrochemical capacitor charging complete, close described the
Remaining two switches in one switch, described second switch and described 3rd switch, and disconnect described 4th switch.
A kind of three-phase electricity rectification circuit is also proposed, including three-phase alternating current input, rectifier bridge and electrochemical capacitor；Described three-phase
Alternating current output includes the first cross streams electricity input, the second cross streams electricity input and the input of third phase alternating current；Described rectifier bridge
Direct current output both positive and negative polarity between connect described electrochemical capacitor；Also include control circuit and zero line；Described electrochemical capacitor includes
First electrochemical capacitor of series connection and the second electrochemical capacitor；Described zero line connects described the by the 4th switch and the first current-limiting resistance
One electrochemical capacitor and the junction of described second electrochemical capacitor series connection；Described first cross streams electric, described second cross streams electricity and
In described third phase alternating current, a cross streams electricity is directly connected to described rectifier bridge, and residue two-phase alternating current is opened each via first
Close and second switch connects described rectifier bridge；Described control circuit, after the T1 time after inputting at described three-phase alternating current,
Control described 4th switch Guan Bi so that described first electrochemical capacitor and described second electrochemical capacitor charging, and control described
Described first switch and described second switch is closed after first electrochemical capacitor and described second electrochemical capacitor charging complete, and disconnected
Drive described 4th switch.
Also propose a kind of three-phase electricity rectification circuit sequential control method, be applied in three-phase electricity rectification circuit, described three-phase
Electric rectification circuit includes three-phase alternating current input, rectifier bridge and electrochemical capacitor；The output of described three-phase alternating current includes that first intersects
Stream electricity input, the second cross streams electricity input and the input of third phase alternating current；Between the both positive and negative polarity of the direct current output of described rectifier bridge
Connect described electrochemical capacitor；Also include control circuit and zero line；Described electrochemical capacitor includes first electrochemical capacitor and the of series connection
Two electrochemical capacitors；Described zero line connects described first electrochemical capacitor and described second electricity by the 4th switch and the first current-limiting resistance
Solve the junction of capacitances in series；In the electric and described third phase alternating current of described first cross streams the second cross streams electric, described, a phase
Alternating current is directly connected to described rectifier bridge, and residue two-phase alternating current connects described rectification each via the first switch and second switch
Bridge；Described control circuit, after the T1 time after inputting at described three-phase alternating current, controls described 4th switch Guan Bi, makes
Obtain described first electrochemical capacitor and described second electrochemical capacitor charging, and control at described first electrochemical capacitor and described second electricity
Close described first switch and described second switch after solving electric capacity charging complete, and disconnect described 4th switch；Method includes:
Described three-phase alternating current input after the T1 time after, control described 4th switch Guan Bi so that described first electrochemical capacitor and
Described second electrochemical capacitor charging；Control to close institute after described first electrochemical capacitor and described second electrochemical capacitor charging complete
State the first switch and described second switch, and disconnect described 4th switch.
Compared with prior art, advantage and the good effect of the application is: the application propose three-phase electricity rectification circuit and
In three-phase electricity rectification circuit sequential control method, the charging circuit of electrochemical capacitor introduces zero line and the 4th switch, at three-phase
By the 4th switch Guan Bi after the alternating current input T1 time, and by the switch Guan Bi on the arbitrary road in three-phase alternating current input, also
I.e. first switch, second switch and the 3rd switch in any one so that formed an electrochemical capacitor charge circuit, start for
Electrochemical capacitor charges, when the voltage that ensure that electrochemical capacitor two ends after electrochemical capacitor charging complete is higher than three-phase electricity commutating voltage,
The most again control disconnect the 4th switch with disconnect electrochemical capacitor charge circuit stop charging, and connect first switch, second
Remaining two switches in switch and the 3rd switch, are all turned on input rectifying bridge by three-phase alternating current input, it is achieved three intersect
The conversion that stream electricity exports to direct current；Above-mentioned visible, charged for electrochemical capacitor in advance by three-phase alternating current input Zhong mono-road, energy
Enough make electrochemical capacitor both end voltage higher than three-phase electricity commutating voltage such that it is able to produce when being prevented effectively from major loop switch Guan Bi
Dash current, it is to avoid the infringement to switch, improve the reliability of three-phase electricity rectification circuit.
After reading in conjunction with the accompanying the detailed description of the application embodiment, other features of the application and advantage will become more
Add clear.
Accompanying drawing explanation
Fig. 1 is the application circuit of three-phase electricity rectification circuit in prior art；
Fig. 2 is the application circuit of three-phase electricity rectification circuit in prior art；
Fig. 3 is the application circuit of the three-phase electricity rectification circuit that the application proposes；
Fig. 4 is the application circuit of the three-phase electricity rectification circuit that the application proposes；
Fig. 5 is the application circuit of the three-phase electricity rectification circuit that the application proposes；
Fig. 6 is the three-phase electricity rectification circuit sequential control method flow chart that the application proposes；
Fig. 7 is the three-phase electricity rectification circuit sequential control method flow chart that the application proposes.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the application is described in more detail.
The application is directed to a kind of three-phase electricity rectification circuit, solves existing three-phase electricity rectification circuit due to current-limiting resistance
Dividing potential drop effect, after charging, the voltage at electrochemical capacitor two ends can be less than three-phase electricity commutating voltage, when three-phase electricity major loop switch Guan Bi
Time, bigger dash current can be produced to switching hurtful technical problem.
As it is shown on figure 3, the application proposes a kind of three-phase electricity rectification circuit, including three-phase alternating current input, rectifier bridge N and electricity
Solve electric capacity；Three-phase alternating current output includes the first cross streams electricity input L1, the second cross streams electricity input L2 and third phase alternating current
Input L3；Series connection electrolysis electric capacity between the both positive and negative polarity of the direct current output of rectification N bridge, and the first electrolysis that this electrochemical capacitor is series connection
Electric capacity C1 and the second electrochemical capacitor C2 composition.
This three-phase electricity rectification circuit also includes control circuit T and zero line N；Zero line N is by the 4th switch K4 and the first current limliting
Resistance R1 connects the junction of the first electrochemical capacitor C1 and the second electrochemical capacitor C2 series connection；First cross streams electricity input L1 is by the
One switch K1 connects rectifier bridge N, the second cross streams electricity input L2 and connects rectifier bridge N, third phase alternating current by second switch K2
Input L3 connects rectifier bridge N by the 3rd switch K3.
Control circuit T for three-phase alternating current input after the T1 time after, control first switch K1, second switch K2 and
3rd switch one of K3 Guan Bi, and control the 4th switch K4 Guan Bi so that forming one is the first electrochemical capacitor C1 and the
The loop of two electrochemical capacitor C2 chargings, when positive axis at alternating current, charges for electrochemical capacitor C1, when alternating current is at negative semiaxis
Time, charge for electrochemical capacitor C2, after the time T2 after the first electrochemical capacitor and the second electrochemical capacitor are filled with electricity, disconnect the 4th
Switch, namely time T2 is more than the first electrochemical capacitor and the time of the second electrochemical capacitor charging complete, it is ensured that two electrochemical capacitors
Complete charging, be also achieved that the first electrochemical capacitor of series connection and the both end voltage of the second electrochemical capacitor are higher than three-phase electricity rectified current
Pressure；And control remaining two switches in Guan Bi the first switch, second switch and the 3rd switch after time t 2, intersect three
Stream electricity input L1, L2 and L3 are all turned on input rectifying bridge, it is achieved the conversion that three-phase alternating current to direct current exports；Visible, pass through
Charging for electrochemical capacitor in advance in three-phase alternating current input Zhong mono-road, it is possible to makes electrochemical capacitor both end voltage whole higher than three-phase electricity
Stream voltage such that it is able to the dash current produced when being prevented effectively from circuit switching Guan Bi, thus avoid the infringement to switch, carry
The high reliability of three-phase electricity rectification circuit.
First electrochemical capacitor of design series connection and the purpose of the second electrochemical capacitor are, due to the voltage after three phase rectifier very
Height, general single electrochemical capacitor requirement to be reached is the highest to the characteristic requirements of electrochemical capacitor, and is connected by two electrochemical capacitors
Realizing, each electrochemical capacitor can undertake the 1/2 of commutating voltage, reduces the performance requirement to electrochemical capacitor.
As shown in Figure 4, the first switch K1, second switch K2 and/or the 3rd switch K3 is also parallel with current-limiting resistance；Diagram
In, the first switch K1 and second switch K2 is parallel with current-limiting resistance R.
The application also proposes a kind of three-phase electricity rectification circuit, in actual applications, based on three-phase electricity rectification as shown in Figure 3
Any one in circuit, the first switch K1, second switch K2 and the 3rd switch K3 could alternatively be the direct connection of circuit,
Save a switch to arrange, play cost-effective effect, on controlling, the most just eliminate the closed and disconnected to a way switch
Control, only need to control the 4th switch Guan Bi after the T1 time after three-phase alternating current inputs and form the charging of an electrochemical capacitor
Loop, the time T2 after electrochemical capacitor charging complete controls to disconnect two switches of the 4th switch and Guan Bi AC i.e.
Can.
Concrete, as it is shown in figure 5, this three-phase electricity rectification circuit includes three-phase alternating current input, rectifier bridge N and electrolysis electricity
Hold；Three-phase alternating current output includes the first cross streams electricity input L1, the second cross streams electricity input L2 and the input of third phase alternating current
L3；Series connection electrolysis electric capacity between the both positive and negative polarity of the direct current output of rectifier bridge N；Electrochemical capacitor includes the first electrochemical capacitor C1 of series connection
With the second electrochemical capacitor C2.
This three-phase electricity rectification circuit also includes control circuit T and zero line N；Zero line N is by the 4th switch K4 and the first current limliting
Resistance R1 connects the junction of the first electrochemical capacitor C1 and the second electrochemical capacitor C2 series connection；First cross streams electricity L1, second intersect
In stream electricity L2 and third phase alternating current L3, a cross streams electricity is directly connected to rectifier bridge (for third phase alternating current L3 in diagram), surplus
Remaining two-phase alternating current (being the first cross streams electricity L1 and the second cross streams electricity L2 in diagram) is each via the first switch K1 and second
Switch K2 connects rectifier bridge N.
After the control circuit T T1 time after inputting at three-phase alternating current, control the 4th switch K4 Guan Bi so that formed
It is the first electrochemical capacitor C1 and the loop of the second electrochemical capacitor C2 charging, when positive axis at alternating current, for electrochemical capacitor
C1 charges, and when alternating current is at negative semiaxis, charges for electrochemical capacitor C2, at the first electrochemical capacitor C1 and the second electrochemical capacitor C2 all
After time T2 after fully charged, control to disconnect the 4th switch K4, and Guan Bi the first switch K1 and second switch K2, it is ensured that two
Electrochemical capacitor charging complete, it is achieved that the first electrochemical capacitor of series connection and the both end voltage of the second electrochemical capacitor are whole higher than three-phase electricity
Stream voltage, and the input rectifying bridge that is connected remaining the two of three-phase alternating current input, it is achieved three-phase alternating current to direct current exports
Conversion.Charged for electrochemical capacitor in advance by three-phase alternating current input Zhong mono-road, it is possible to make electrochemical capacitor both end voltage high
In three-phase electricity commutating voltage such that it is able to the dash current produced when being prevented effectively from circuit switching Guan Bi, thus avoid split
The infringement closed, improves the reliability of three-phase electricity rectification circuit.
Certainly, being similar to shown in Fig. 4, the first switch K1 and/or second switch K2 can also be parallel with current-limiting resistance.
The three-phase electricity rectification circuit proposed based on above-mentioned Fig. 3 and/or Fig. 4, the application proposes a kind of three-phase electricity rectification circuit
Sequential control method, as shown in Figure 6, comprises the steps:
Step S71: three-phase alternating current input after the T1 time after, control first switch, second switch and the 3rd switch in it
One Guan Bi, and control the 4th switch Guan Bi so that electrochemical capacitor charges.
Step S72: control to close the first switch after the first electrochemical capacitor and the second electrochemical capacitor charging complete, second open
Close and remaining two switches in the 3rd switch, and disconnect the 4th switch.
The three-phase electricity rectification circuit proposed based on above-mentioned Fig. 5, the application also proposes a kind of three-phase electricity rectification circuit sequential control
Method processed, comprises the steps:
Step S81: three-phase alternating current input after the T1 time after, control the 4th switch Guan Bi so that the first electrochemical capacitor and
Second electrochemical capacitor charging.
Step S82: control to close the first switch and second after the first electrochemical capacitor and the second electrochemical capacitor charging complete
Switch, and disconnect the 4th switch.
The control method of concrete three-phase electricity rectification circuit and technique effect describe in detail in above-mentioned three-phase electricity rectification circuit,
It will not go into details herein.
Above-mentioned, the three-phase electricity rectification circuit of the application proposition and three-phase electricity rectification circuit sequential control method, at electrolysis electricity
The charging circuit held introduces zero line and the 4th switch, by the 4th switch Guan Bi after the three-phase alternating current input T1 time, and
By three-phase alternating current input in arbitrary road switch Guan Bi, namely first switch, second switch and the 3rd switch in arbitrary
Individual to form the charge circuit of an electrochemical capacitor, start to be two electrochemical capacitor chargings, when the positive axis of alternating current be
First electrochemical capacitor charging, is the second electrochemical capacitor charging when the negative semiaxis of alternating current, when two electrochemical capacitor charging completes
After ensure that the voltage at two electrochemical capacitor two ends of series connection higher than three-phase electricity commutating voltage, controls to disconnect the 4th the most again and opens
Close, to disconnect the charge circuit stopping charging of electrochemical capacitor, then connect in the first switch, second switch and the 3rd switch and be left
Two switches, by three-phase alternating current input be all turned on input rectifying bridge, it is achieved the conversion that three-phase alternating current to direct current exports；
Above-mentioned, charged for electrochemical capacitor in advance by three-phase alternating current input Zhong mono-road, it is possible to make electrochemical capacitor both end voltage high
In three-phase electricity commutating voltage such that it is able to the dash current produced when being prevented effectively from major loop switch Guan Bi, serve and avoid
Infringement to switch, improves the technique effect of the reliability of three-phase electricity rectification circuit.
It should be noted that described above is not limitation of the present invention, the present invention is also not limited to the example above,
Change that those skilled in the art are made in the essential scope of the present invention, retrofit, add or replace, also should
Belong to protection scope of the present invention.
Claims (6)
1. a three-phase electricity rectification circuit, including three-phase alternating current input, rectifier bridge and electrochemical capacitor；Described three-phase alternating current is defeated
Go out to include the first cross streams electricity input, the second cross streams electricity input and the input of third phase alternating current；The direct current of described rectifier bridge is defeated
Connect between the both positive and negative polarity gone out described electrochemical capacitor；It is characterized in that, also include control circuit and zero line；
Described electrochemical capacitor includes the first electrochemical capacitor and second electrochemical capacitor of series connection；
Described zero line connects described first electrochemical capacitor and described second electrochemical capacitor by the 4th switch and the first current-limiting resistance
The junction of series connection；
Described first cross streams electricity enters through the first switch and connects described rectifier bridge, and described second cross streams electricity enters through the
Two switches connect described rectifier bridge, and described third phase alternating current enters through the 3rd switch and connects described rectifier bridge；
Described control circuit, after the T1 time after inputting at described three-phase alternating current, control described first switch, described the
One of two switches and described 3rd switch Guan Bi, and control described 4th switch Guan Bi so that described first electrochemical capacitor
Charge with described second electrochemical capacitor, and control to close after described first electrochemical capacitor and described second electrochemical capacitor charging complete
Close remaining two switches in described first switch, described second switch and described 3rd switch, and disconnect the described 4th and open
Close.
Three-phase electricity rectification circuit the most according to claim 1, it is characterised in that described first switch, described second switch
And/or described 3rd switch in parallel current limiting resistance.
3. a three-phase electricity rectification circuit, including three-phase alternating current input, rectifier bridge and electrochemical capacitor；Described three-phase alternating current is defeated
Go out to include the first cross streams electricity input, the second cross streams electricity input and the input of third phase alternating current；The direct current of described rectifier bridge is defeated
Connect between the both positive and negative polarity gone out described electrochemical capacitor；It is characterized in that, also include control circuit and zero line；
Described electrochemical capacitor includes the first electrochemical capacitor and second electrochemical capacitor of series connection；
Described zero line connects described first electrochemical capacitor and described second electrochemical capacitor by the 4th switch and the first current-limiting resistance
The junction of series connection；
In the electric and described third phase alternating current of described first cross streams the second cross streams electric, described, a cross streams electricity is directly connected to
Described rectifier bridge, residue two-phase alternating current connects described rectifier bridge each via the first switch and second switch；
Described control circuit, after the T1 time after inputting at described three-phase alternating current, controls described 4th switch Guan Bi, makes
Obtain described first electrochemical capacitor and described second electrochemical capacitor charging, and control at described first electrochemical capacitor and described second electricity
Close described first switch and described second switch after solving electric capacity charging complete, and disconnect described 4th switch.
Three-phase electricity rectification circuit the most according to claim 3, it is characterised in that described first switch and/or described second
Switch in parallel current limiting resistance.
5. three-phase electricity rectification circuit sequential control method, is applied to the three-phase electricity rectified current as described in any one of claim 1-2
Lu Zhong, it is characterised in that including:
After the T1 time after described three-phase alternating current inputs, control described first switch, described second switch and the described 3rd
One of switch Guan Bi, and control described 4th switch Guan Bi so that described first electrochemical capacitor and described second electrolysis electricity
Capacity charge；
Control to close after described first electrochemical capacitor and described second electrochemical capacitor charging complete described first switch, described the
Remaining two switches in two switches and described 3rd switch, and disconnect described 4th switch.
6. three-phase electricity rectification circuit sequential control method, is applied to the three-phase as described in claim 3-4 any one claim
In electric rectification circuit, it is characterised in that including:
After the T1 time after described three-phase alternating current inputs, control described 4th switch Guan Bi so that described first electrolysis electricity
Hold and described second electrochemical capacitor charging；
Control after described first electrochemical capacitor and described second electrochemical capacitor charging complete, to close described first switch with described
Second switch, and disconnect described 4th switch.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106936191A (en) * | 2017-04-19 | 2017-07-07 | 深圳市菊水皇家科技有限公司 | A kind of charging pile power module controls circuit |
| CN107994791A (en) * | 2017-12-07 | 2018-05-04 | 广东美的暖通设备有限公司 | Rectified three-phase circuit and its control method and air conditioner |
| CN112511145A (en) * | 2020-12-04 | 2021-03-16 | 深圳市金威源科技股份有限公司 | Standby zero reactive power consumption control circuit in switching power supply |
| CN112910274A (en) * | 2020-12-14 | 2021-06-04 | 杭州先途电子有限公司 | Controller |
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| JPH09298882A (en) * | 1996-04-30 | 1997-11-18 | Daikin Ind Ltd | Current limiting apparatus in power supply |
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| CN101251286A (en) * | 2007-02-02 | 2008-08-27 | 莱芜市三和科技有限公司 | System and method for controlling emergency draft of air conditioner |
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| CN204190636U (en) * | 2014-10-11 | 2015-03-04 | 东南大学 | PWM rectifier circuit topological structure |
| CN105071670A (en) * | 2015-08-13 | 2015-11-18 | 厦门科华恒盛股份有限公司 | Three-phase rectifying boost circuit, control method thereof and uninterruptible power supply |
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Address after: 266100 Zhuzhou Road, Laoshan District, Qingdao, Shandong Province, No. 151 Applicant after: Hisense (Shandong) Air-conditioning Co., Ltd. Address before: 266736 Hisense Road 1, South Village Town, Pingdu City, Qingdao, Shandong Applicant before: Hisense (Shandong) Air-conditioning Co., Ltd. |
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