CN102457101A - Battery backup power supply device - Google Patents
Battery backup power supply device Download PDFInfo
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- CN102457101A CN102457101A CN2010105263698A CN201010526369A CN102457101A CN 102457101 A CN102457101 A CN 102457101A CN 2010105263698 A CN2010105263698 A CN 2010105263698A CN 201010526369 A CN201010526369 A CN 201010526369A CN 102457101 A CN102457101 A CN 102457101A
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- battery
- battery pile
- source device
- backup power
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- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims description 32
- 230000008569 process Effects 0.000 claims description 32
- 230000008859 change Effects 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/10—Applications of fuel cells in buildings
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a battery standby power supply device, which is characterized in that: the battery backup power supply device comprises a battery stack and a battery stack management system; the battery stack comprises a plurality of single batteries connected in series and parallel, and the battery stack management system comprises a battery stack control unit and a plurality of single battery monitoring units; the single battery monitoring unit is in communication connection with the single battery and is used for monitoring the working mode of the single battery; the single battery monitoring unit is in communication connection with the battery stack control unit, and the battery stack control unit controls the working mode of the single battery according to the monitoring of the single battery monitoring unit. The battery standby power supply device has the advantages of limited energy storage capacity, strong reliability, low maintenance cost and high switching speed.
Description
Technical field
The present invention relates to network system, relate in particular to a kind of battery backup power source device.
Background technology
Along with the Electric Application development of science and technology; The electronic equipment that needs to rely on electric power to operate constantly is developed; Make people for the demand of electric power with day increase severely, impact and inconvenience to such an extent as to unexpected outage brings usually for people's life, especially for the load equipment of particular importance in plant produced line or the life; In case interruption of power supply tends to dealer or user are caused great economic loss.Yet generating equipment and power transmission and transformation system all need repairing and maintain, even and present electrical network facilities advanced again, in servicely also can break down, outage all of a sudden is still unavoidable.Therefore, can be when civil power cut off the power supply, standby power supply device is extremely important.
The high-power stand-by power supply that uses now, the standby diesel-generator unit that is that 5 kilowatts (KW) is above is generated electricity, and the standby diesel-generator unit noise is big, the reaction time long (10-15 second), contaminated environment, shortcoming is a lot.
Therefore, present a kind of high-power, standby power supply device that reaction speed is fast of exigence.
Summary of the invention
For stand-by power supply finite capacity in the prior art, poor reliability, problems such as maintenance cost height, the present invention provides a kind of battery backup power source device, it is characterized in that: said battery backup power source device comprises battery pile and battery pile management system; Said battery pile comprises a plurality of series-parallel cells, and said battery pile management system comprises battery pile control unit and a plurality of cell monitoring unit; Said cell monitoring unit is communicated by letter with said cell and is connected, and the mode of operation of said cell is monitored; Said cell monitoring unit is communicated by letter with said battery pile control unit and is connected, and said battery pile control unit is controlled the residing mode of operation of said cell according to the monitoring of said cell monitoring unit;
Said battery backup power source device also comprises central control system, two-way change of current system and automatic switching control equipment; Said central control system is communicated by letter with AC network and is connected with battery pile, battery pile management system, two-way change of current system, automatic switching control equipment respectively; Said automatic switching control equipment is connected with two-way change of current system, said AC network, custom power respectively, and said two-way change of current system is connected with battery pile electric power.
The present invention can also be further perfect through following technical proposals.
Said central control system is monitored said AC network, and according to the parameter signal of said AC network, said AC network is through the bi-directional conversion between said two-way change of current system's realization alternating current and the direct current; Said central control system is through the control of said battery pile management system realization to the operating state of the cell of said battery pile;
Said automatic switching control equipment, when AC network cut off the power supply, said central control system was controlled said automatic switching control equipment and is controlled said battery pile through said battery pile management system and through said two-way change of current system and said automatic switching control equipment alternating current is provided.
Compared with prior art, the beneficial effect of this present invention's battery backup power source device is following:
1) internal resistance of single battery is less than 5 milliohms, can many rate charge-discharges; The switch of two-way change of current system adopts high efficiency high-power electronic switch; Insulated gate bipolar transistor (Insulated Gate Bipolar Transistor like two-way high-power quick break-make; Be called for short IGBT) electronic switch, so the response speed of battery backup power source device is fast.
2) the lithium titanate battery conversion efficiency is high, energy conversion efficiency high (can reach 98%).
3) have automatic switching control equipment, can do emergency standby power and use, subsequent use property is strong, increases the reliability of power supply.
4) construction period weak point, maintenance cost is low, long service life (can reach 30 years).
Battery backup power source device stored energy capacitance of the present invention is limited, good reliability, advantage such as maintenance cost is low, and switch speed is fast.
Description of drawings
Fig. 1 is the structural representation of battery backup power source device of the present invention;
Fig. 2 is the structural representation of charging process shown in Figure 1;
The structural representation of battery backup power source device discharge process when Fig. 3 is AC network shown in Figure 1 outage.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, clean energy resource of the present invention energy-accumulating power station that compensates and the energy-storage system with clean energy resource compensation are further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The battery backup power source device of the embodiment of the invention, as shown in Figure 1, be connected between AC network and the user, to said user's power supply; Said battery backup power source device comprises battery pile and battery pile management system; Said battery pile comprises a plurality of series-parallel cells, and said battery pile management system comprises battery pile control unit and a plurality of cell monitoring unit; Said cell monitoring unit is communicated by letter with said cell and is connected, and the mode of operation of said cell is monitored; Said cell monitoring unit is communicated by letter with said battery pile control unit and is connected, and said battery pile control unit is controlled the mode of operation of said cell according to the monitoring of said cell monitoring unit;
Said battery backup power source device also comprises central control system, two-way change of current system and automatic switching control equipment; Said central control system is communicated by letter with AC network and is connected with battery pile, battery pile management system, two-way change of current system, automatic switching control equipment respectively; Said automatic switching control equipment is connected with two-way change of current system, said AC network, custom power respectively, and said two-way change of current system is connected with battery pile electric power.
Said cell makes the output voltage of said battery pile reach voltage designing requirement (as between 660 volts to 810 volts) through series connection; Said cell makes the capacity of battery pile reach the Capacity design requirement through parallel connection.
Said central control system is monitored said AC network, and according to the parameter signal of said AC network, said AC network is through the bi-directional conversion between said two-way change of current system's realization alternating current and the direct current; Said central control system is through the control of said battery pile management system realization to the operating state of the cell of said battery pile;
Said automatic switching control equipment, when AC network cut off the power supply, said central control system was controlled said automatic switching control equipment and is controlled said battery pile through said battery pile management system and through said two-way change of current system and said automatic switching control equipment alternating current is provided.
According to the parameter signal of said AC network, when said central control system judgement need be carried out charge or discharge to battery pile; Said central control system is according to the control of said battery pile control unit to each cell mode of operation, and realization is to the control of the operating state of the cell of said battery pile.
Said cell monitoring unit comprises the warning definite value of monomer battery voltage, electric current and temperature; When voltage, electric current and the temperature of said cell surpass the warning definite value, said battery pile control unit will make this cell no longer participate in charging process, only participate in the mode of operation of discharge process; Said battery pile control unit is sent to said central control system with the mode of operation of this cell.
Said cell monitoring unit comprises the warning definite value of monomer battery voltage, electric current and temperature; When voltage, electric current and the temperature of said cell did not reach the warning definite value, said cell monitoring unit made this cell participate in the mode of operation of charging process or discharge process; Said battery pile control unit is sent to said central control system with the mode of operation of this cell.
Said cell monitoring unit comprises voltage, electric current and the temperature fault set point of cell; When voltage, electric current and the temperature of said cell surpass the fault set point, said battery pile control unit will cut off the electric branch road of this cell, make this cell no longer participate in the mode of operation of charging process and discharge process; Said battery pile control unit is sent to said central control system with the mode of operation of this cell.
As shown in Figure 2, when low power consumption, the AC network parameter signal feeds back to central control system, and central control system is sent inverter control signal according to the AC network parameter signal to two-way change of current system;
Said central control system is according to the residing mode of operation of each cell, realizes the control to the operating state of each cell of said battery pile:
Cell is in the mode of operation of participating in charging process or discharge process, and this cell is charged;
Cell is in no longer participates in charging process, only participates in the mode of operation of discharge process, this cell is not charged;
Cell is in the mode of operation of no longer participating in charging process and discharge process, this cell is not charged;
Two-way change of current system converts the alternating current electric energy of AC network into direct current electric energy (with battery pile frequency and phase locked direct current electric energy) according to inverter control signal and is stored in the battery pile; Absorb rich electric weight; The electrical power storage that originally will slattern, guarantee the steady of voltage simultaneously;
When peak of power consumption, the AC network parameter signal feeds back to central control system, and central control system is sent inverter control signal according to the AC network parameter signal to two-way change of current system;
Said central control system is according to the residing mode of operation of each cell, realizes the control to the operating state of each cell of said battery pile:
Cell is in the mode of operation of participating in charging process or discharge process, and this cell discharges;
Cell is in no longer participates in charging process, only participates in the mode of operation of discharge process, and this cell discharges;
Cell is in the mode of operation of no longer participating in charging process and discharge process, and this cell does not discharge.
Two-way change of current system converts the direct current electric energy of battery pile storage into alternating current electric energy (with AC network frequency and phase locked alternating current electric energy) according to inverter control signal and is transferred to AC network; Replenish the supply of electrical energy amount of AC network; Steadily line voltage reduces putting into operation of generating set.
As shown in Figure 3, when AC network cut off the power supply, said central control system central control system was sent inverter control signal according to the AC network parameter signal to two-way change of current system; Said central control system is according to the residing mode of operation of each cell, realizes the control to the operating state of each cell of said battery pile:
Cell is in the mode of operation of participating in charging process or discharge process, and this cell discharges;
Cell is in no longer participates in charging process, only participates in the mode of operation of discharge process, and this cell discharges;
Cell is in the mode of operation of no longer participating in charging process and discharge process, and this cell does not discharge.Be that the battery pile energy-storage system provides alternating current through said two-way change of current system and automatic switching control equipment to the user, play the effect of stand-by power supply.
Preferably, said cell is that internal resistance is less than 5 milliohm lithium titanate batteries.
Preferably, said two-way change of current system comprises the power module bi-directional inverter, and said power module bi-directional inverter is used for the bi-directional conversion between alternating current and the direct current electric energy.
Preferably, the switch of said two-way change of current system adopts electronic switch.
Compared with prior art, the beneficial effect of battery backup power source device of the present invention is following:
5) internal resistance of single battery is less than 5 milliohms, can many rate charge-discharges; The switch of two-way change of current system adopts high efficiency high-power electronic switch; Insulated gate bipolar transistor (Insulated Gate Bipolar Transistor like two-way high-power quick break-make; Be called for short IGBT) electronic switch, so the response speed of battery backup power source device is fast.
6) the lithium titanate battery conversion efficiency is high, energy conversion efficiency high (can reach 98%).
7) have automatic switching control equipment, can do emergency standby power and use, subsequent use property is strong, increases the reliability of power supply.Construction period is short, and maintenance cost is low, long service life (can reach 30 years).
Should be noted that at last that obviously those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these revise and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification.
Claims (10)
1. a battery backup power source device is connected between AC network and the user, to said user's power supply; It is characterized in that:
Said battery backup power source device comprises battery pile and battery pile management system; Said battery pile comprises a plurality of series-parallel cells, and said battery pile management system comprises battery pile control unit and a plurality of cell monitoring unit; Said cell monitoring unit is communicated by letter with said cell and is connected, and the mode of operation of said cell is monitored; Said cell monitoring unit is communicated by letter with said battery pile control unit and is connected, and said battery pile control unit is controlled the residing mode of operation of said cell according to the monitoring of said cell monitoring unit;
Said battery backup power source device also comprises central control system, two-way change of current system and automatic switching control equipment; Said central control system is communicated by letter with AC network and is connected with battery pile, battery pile management system, two-way change of current system, automatic switching control equipment respectively; Said automatic switching control equipment is connected with two-way change of current system, said AC network, custom power respectively, and said two-way change of current system is connected with battery pile electric power.
2. battery backup power source device according to claim 1 is characterized in that:
Said central control system is monitored said AC network, and according to the parameter signal of said AC network, said AC network is through the bi-directional conversion between said two-way change of current system's realization alternating current and the direct current; Said central control system is through the control of said battery pile management system realization to the operating state of the cell of said battery pile;
Said automatic switching control equipment, when AC network cut off the power supply, said central control system was controlled said automatic switching control equipment and is controlled said battery pile through said battery pile management system and through said two-way change of current system and said automatic switching control equipment alternating current is provided.
3. battery backup power source device according to claim 1 and 2 is characterized in that:
Said cell makes the output voltage of said battery pile reach the voltage designing requirement through series connection; Said cell makes the capacity of battery pile reach the Capacity design requirement through parallel connection.
4. battery backup power source device according to claim 2 is characterized in that:
According to the parameter signal of said AC network, when said central control system judgement need be carried out charge or discharge to battery pile; Said central control system realizes the control to the operating state of said cell according to the control of said battery pile control unit to each cell mode of operation.
5. battery backup power source device according to claim 4 is characterized in that:
Said cell monitoring unit comprises the warning definite value of monomer battery voltage, electric current and temperature; When voltage, electric current and the temperature of said cell surpassed the warning definite value, said battery pile control unit made this cell no longer participate in charging process, only participates in the mode of operation of discharge process; Said battery pile control unit is sent to said central control system with the mode of operation of this cell.
6. battery backup power source device according to claim 4 is characterized in that:
Said cell monitoring unit comprises the warning definite value of monomer battery voltage, electric current and temperature; When voltage, electric current and the temperature of said cell did not reach the warning definite value, said cell monitoring unit made this cell participate in the mode of operation of charging process or discharge process; Said battery pile control unit is sent to said central control system with the mode of operation of this cell.
7. battery backup power source device according to claim 4 is characterized in that:
Said cell monitoring unit comprises voltage, electric current and the temperature fault set point of cell; When voltage, electric current and the temperature of said cell surpass the fault set point, said battery pile control unit will cut off the electric branch road of this cell, make this cell no longer participate in the mode of operation of charging process and discharge process; Said battery pile control unit is sent to said central control system with the mode of operation of this cell.
8. battery backup power source device according to claim 1 is characterized in that:
Said cell is that internal resistance is less than 5 milliohm lithium titanate batteries.
9. battery backup power source device according to claim 3 is characterized in that:
Said two-way change of current system comprises the power module bi-directional inverter, and said power module bi-directional inverter is used for the bi-directional conversion between alternating current and the direct current electric energy.
10. battery backup power source device according to claim 3 is characterized in that:
The switch of said two-way change of current system adopts electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105263698A CN102457101A (en) | 2010-10-28 | 2010-10-28 | Battery backup power supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105263698A CN102457101A (en) | 2010-10-28 | 2010-10-28 | Battery backup power supply device |
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| CN102457101A true CN102457101A (en) | 2012-05-16 |
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| CN2010105263698A Pending CN102457101A (en) | 2010-10-28 | 2010-10-28 | Battery backup power supply device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856976A (en) * | 2012-09-25 | 2013-01-02 | 广东易事特电源股份有限公司 | Discontinuous power supply, battery management system and discontinuous power supply system |
| CN103903569A (en) * | 2012-12-24 | 2014-07-02 | 联想(北京)有限公司 | Battery pack series/parallel connection conversion method, battery pack series/parallel connection conversion device and electronic equipment |
| CN104682550A (en) * | 2015-03-06 | 2015-06-03 | 深圳市盛弘电气有限公司 | Emergency power supply system and control method thereof |
| CN107979169A (en) * | 2017-12-22 | 2018-05-01 | 珠海银隆电器有限公司 | Lithium titanate battery energy storage for power supply system and its control method for communication base station |
| CN108494279A (en) * | 2018-03-22 | 2018-09-04 | 深圳市海浦蒙特科技有限公司 | Emergency power supply and its output voltage control method and device |
| CN109449944A (en) * | 2018-09-29 | 2019-03-08 | 厦门科华恒盛股份有限公司 | Substation's two-way type DC power control system and method |
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| CN101005211A (en) * | 2007-01-18 | 2007-07-25 | 秦江超 | High frequency emergency power system |
| CN101834457A (en) * | 2010-04-30 | 2010-09-15 | 重庆长安汽车股份有限公司 | Lithium battery management system |
| CN201877881U (en) * | 2010-10-28 | 2011-06-22 | 珠海银通新能源有限公司 | Cell backup power supply device |
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2010
- 2010-10-28 CN CN2010105263698A patent/CN102457101A/en active Pending
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| WO2005081388A1 (en) * | 2004-02-19 | 2005-09-01 | Siemens Ag Österreich | Device for covering the peak load |
| CN101005211A (en) * | 2007-01-18 | 2007-07-25 | 秦江超 | High frequency emergency power system |
| CN101834457A (en) * | 2010-04-30 | 2010-09-15 | 重庆长安汽车股份有限公司 | Lithium battery management system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856976A (en) * | 2012-09-25 | 2013-01-02 | 广东易事特电源股份有限公司 | Discontinuous power supply, battery management system and discontinuous power supply system |
| CN103903569A (en) * | 2012-12-24 | 2014-07-02 | 联想(北京)有限公司 | Battery pack series/parallel connection conversion method, battery pack series/parallel connection conversion device and electronic equipment |
| CN103903569B (en) * | 2012-12-24 | 2016-08-17 | 联想(北京)有限公司 | A kind of battery pack series-parallel conversion method, device and electronic equipment |
| CN104682550A (en) * | 2015-03-06 | 2015-06-03 | 深圳市盛弘电气有限公司 | Emergency power supply system and control method thereof |
| CN107979169A (en) * | 2017-12-22 | 2018-05-01 | 珠海银隆电器有限公司 | Lithium titanate battery energy storage for power supply system and its control method for communication base station |
| CN108494279A (en) * | 2018-03-22 | 2018-09-04 | 深圳市海浦蒙特科技有限公司 | Emergency power supply and its output voltage control method and device |
| CN109449944A (en) * | 2018-09-29 | 2019-03-08 | 厦门科华恒盛股份有限公司 | Substation's two-way type DC power control system and method |
| CN109449944B (en) * | 2018-09-29 | 2021-04-27 | 科华恒盛股份有限公司 | Bidirectional direct-current power supply control system and method for transformer substation |
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Application publication date: 20120516 |