CN101466193B - Method for monitoring lighting lamp power factor compensation capacitance fault - Google Patents
Method for monitoring lighting lamp power factor compensation capacitance fault Download PDFInfo
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- CN101466193B CN101466193B CN2009100282007A CN200910028200A CN101466193B CN 101466193 B CN101466193 B CN 101466193B CN 2009100282007 A CN2009100282007 A CN 2009100282007A CN 200910028200 A CN200910028200 A CN 200910028200A CN 101466193 B CN101466193 B CN 101466193B
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Abstract
The invention provides a lightening lamp power factor compensation capacitor fault-detecting method, which can detect the active power and the reactive power of the lightening lamps in real time; when the detected reactive power is higher than the upper limit threshold value of the preset active power, or the detected active power is lower than the preset lower limit threshold value of the active power and the reactive power is lower than the lower limit threshold value of the preset reactive power, the compensation capacitor fault is determined, so as to send out the signals to alarm; the detecting method has the advantages that the capacitor fault can be found out in time, the power factor can be improved, the wire loss can be reduced, and the electricity energy can be saved.
Description
Technical field
The present invention relates to a kind of monitoring method of lighting compensation capacitance fault; Especially the lighting of public lighting system is carried out the automatic testing method of power factor compensation capacitance fault, specifically method for monitoring lighting lamp power factor compensation capacitance fault.
Background technology
Along with global non-renewable resources reduce, economize on resources, energy savings caused that the whole society shows great attention to, it is more and more important that energy-saving and emission-reduction show.Particularly luminaire for public lighting all adopts Inductive ballast formula high-pressure sodium lamp & lantern lamp source usually, because the reactive power that its inductive load produced; Do not take the reactive power compensation measure; Make power factor reduce, cause that public illumination transmission cable load increases the weight of, pressure drop increases, cause the deadweight loss of power transmission lines electric energy; Not only improve the cable cost of investment but also influence circuit latter end voltage, possibly make the latter end lighting to start.Therefore, CJJ45-91 " city illumination design standard " clearly stipulates: require to use capacitance compensation to make power factor must reach more than 0.85, to avoid the generation of these problems; Its two, take power factor compensation capacitance after because public illumination administrative department has the fine or not situation of technological means monitoring power factor compensation capacitance, capacitance damage is often unknown in practical application.So the fault of electric capacity can not be in time found in existing public illumination, fault electric capacity can not get timely replacing; In case electric capacity fault lighting just is in work under the low power factor state always, cause supply line's electric current to increase, the circuit electric energy loss increases; Line drop increases; Cause a large amount of wastes of electric energy, reduce circuit useful life, increase the operation costs of road lamp management.The increase of line drop can make also that the voltage of latter end lighting is too low can not normally to be started.
Summary of the invention
The objective of the invention is monitoring method disappearance to the lighting compensation capacitance fault; Cause in time to find and changing the fault electric capacity of lighting; Thereby cause the problems of a large amount of wastes of electric energy, but the fault that has proposed a kind of illumination light fixture building-out capacitor is carried out the method for monitoring lighting lamp power factor compensation capacitance fault of low-cost monitoring and fault alarm.
Technical scheme of the present invention is:
A kind of method for monitoring lighting lamp power factor compensation capacitance fault is characterized in that it may further comprise the steps:
(a). the reactive power upper and lower limit door value and the active power lower limit door value of lighting at first are set according to different tested lightings;
(b). after the lighting energising, measure the active power and the reactive power of lighting;
(c). the lighting reactive power upper and lower limit door value of lighting reactive power of relatively measuring and setting; If the lighting reactive power of measuring greater than the lighting reactive power upper limit door value of setting or the lighting active power measured less than the active power lower limit door value of setting and reactive power less than the lighting reactive power lower limit door value of setting; Judge that the lighting building-out capacitor breaks down, otherwise repeating step b-c.
Lighting lamp power factor compensation capacitance fault monitoring of the present invention was carried out after energising a period of time, and described a period of time is 1-10 minute after switching on.
Active power of the present invention and reactive power calculate through the embedded software in power measurement chip and the CPU.
After lighting building-out capacitor of the present invention is judged to be fault, report to the police by warning circuit.
Beneficial effect of the present invention:
1, the present invention judges that the compensation capacitance fault of lighting is active power and the reactive power through the monitoring light light fixture; Promptly monitor reactive power greater than the reactive power upper limit door value of setting; Or monitor active power less than the active power thresholding of setting down value and reactive power less than the reactive power lower limit door value of setting; Then comprehensive judgement is confirmed compensation capacitance fault and is exported signal alarm; Power factor compensation capacitance fault monitoring of the present invention and warning are convenient in time find and change fault electric capacity, reduce the circuit electric energy loss.
2, the present invention adopts PLC technology, carries out the two carrier communications of low-voltage power line of arrowband double frequency, and signal can directly be coupling on the AC220V power line and transmit, and need not to lay private cable, has reduced production cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of the embodiment of the invention.
Fig. 3 is the electrical schematic diagram of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
A kind of method for monitoring lighting lamp power factor compensation capacitance fault, it may further comprise the steps:
(a). the upper and lower limit door value and the active power lower limit door value of the reactive power of lighting at first are set according to different tested lightings, deposit in the EEPROM EEPROM of CPU;
(b). after the lighting energising, measure the active power and the reactive power of lighting;
(c). the lighting reactive power upper and lower limit door value of lighting reactive power of relatively measuring and setting; Value and reactive power are less than the lighting reactive power lower limit door value of setting down less than the active power thresholding of setting if the lighting reactive power of measuring is greater than the lighting reactive power upper limit door value of setting or the lighting active power measured, and judgement lighting building-out capacitor breaks down.
Lighting lamp power factor compensation capacitance fault monitoring of the present invention was carried out after energising a period of time, and described a period of time is 1-10 minute after switching on.Mainly be to consider that the high-pressure sodium lamp cold start-up time is longer, active power and reactive power need behind the certain hour could normal and stable, avoids the false alarm phenomenon.
Active power of the present invention and reactive power calculate through the embedded software program in power measurement chip and the CPU.
After lighting building-out capacitor of the present invention is judged to be fault, report to the police by warning circuit.
Lighting lamp power factor compensation capacitance fault monitoring device of the present invention; As shown in Figure 1: it comprises voltage sample circuit, current sampling circuit, computing unit, CPU and warning circuit; Lighting is supplied power by civil power AC220V; The voltage sample circuit of lighting lamp power factor compensation capacitance fault monitoring device is attempted by on the power supply of lighting, current sampling circuit is serially connected on the phase line of lighting power supply; The signal input part of the sampled signal output termination computing unit of voltage sample circuit and current sampling circuit; The output of computing unit connects the signal input part of CPU, the signal input part of the alarm signal output ends circuit taking alarm of CPU.
During practical implementation:
Method for monitoring lighting lamp power factor compensation capacitance fault of the present invention, it may further comprise the steps:
(a). at first the upper and lower limit door value and the active power lower limit door value of lighting reactive power are set for the lighting lamp power factor compensation capacitance fault monitoring device through port, deposit in the EEPROM of CPU according to different tested lightings;
(b). turn on light back a period of time at every turn, after lighting power is basicly stable,, obtains the voltage sampling signal and the current sampling signal of lighting simultaneously respectively and deliver to computing unit through voltage sample circuit and current sampling circuit, as shown in Figure 1;
(c). calculate the active power P of lighting and the comparing unit that reactive power Q is delivered to CPU through computing unit;
(d). the lighting reactive power upper and lower limit door value of the active power P of more tested lighting, reactive power Q, setting in the comparing unit of CPU and active power lower limit door value; When reactive power Q greater than the reactive power upper limit door value of setting or active power P less than the active power lower limit door value of setting and reactive power Q during less than the reactive power lower limit door value set; Judge that the lighting building-out capacitor breaks down, CPU produces alarm signal and delivers to the warning circuit warning.
As shown in Figure 2: lighting lamp power factor compensation capacitance fault monitoring device of the present invention, it comprises voltage sample circuit, current sampling circuit, power measurement chip IC 1 (model can be ADE7753), CPU (model can be PL3120) and warning circuit (adopting PLC technology through the power line transmission alarm signal).Input meets live wire L, the zero line N of mains supply end to the sampled signal input of voltage sample circuit as the voltage sampling signal of lighting lamp power factor compensation capacitance fault monitoring device, and the sampled signal input of current sampling circuit is as the current sampling signal input of lighting lamp power factor compensation capacitance fault monitoring device; One termination live wire L; The live wire input of the tested lighting of another termination (containing power factor compensation capacitance); The sampled signal output of voltage and current sample circuit connects voltage, the current measurement signal input of power measurement chip IC 1 respectively; The SPI communication interface of power measurement chip IC 1 links to each other with the SPI communication interface of CPU, and the alarm signal output ends of CPU links to each other with the signal input part of warning circuit.
As shown in Figure 3, voltage sample circuit of the present invention comprises resistance R 16-R19, R20, R21 and filter capacitor C15, C16.Current sampling circuit comprises inductance L 3, L4, L5, sample resistance MR, resistance R 14, R15 and filter capacitor C13, C14; The sampled signal input of current sampling circuit is introduced from an end of inductance L 5; The end of the other end connecting resistance MR of inductance L 5; The other end of resistor MR is as another sampled signal input of current sampling circuit; The two ends of resistor MR connect the current measurement signal input of power measurement chip IC 1 respectively through inductance L 3, resistance R 15 and inductance L 4, resistance R 14; The tie point of resistance R 14 and power measurement chip IC 1 is through capacitor C 13 ground connection; The tie point of resistance R 15 and power measurement chip IC 1 is through capacitor C 14 ground connection; The sampled signal input of voltage sample circuit is the end input of resistance R 16 from the input of bleeder circuit, and the output of bleeder circuit is the voltage measurement signal input of a termination power measurement chip IC 1 of resistance R 19, and the tie point of resistance R 19 and power measurement chip IC 1 is through shunt capacitance C16, resistance R 21 ground connection; Another voltage signal input that another sampled signal input of voltage sample circuit is a power measurement chip IC 1 is through shunt capacitance C15, resistance R 20 ground connection, and the SPI communication interface of power measurement chip IC 1 is connected with the SPI communication interface of CPU.
Warning circuit employing PLC technology of the present invention is coupled to alarm signal and carries out the alarm signal transmission on the power line.
The present invention does not relate to all identical with the prior art prior art that maybe can adopt of part and realizes.
Claims (3)
1. a method for monitoring lighting lamp power factor compensation capacitance fault is characterized in that described lighting for adopting Inductive ballast formula high-pressure sodium lamp, and it may further comprise the steps:
(a). the reactive power upper and lower limit door value and the active power lower limit door value of lighting at first are set according to different tested lightings;
(b). the lighting lamp power factor compensation capacitance fault monitoring is carried out after energising a period of time at lighting; Described a period of time is 1-10 minute after the lighting energising, promptly measures the active power and the reactive power of lighting after energising a period of time at lighting;
(c). the lighting reactive power upper and lower limit door value of lighting reactive power of relatively measuring and setting; If the lighting reactive power of measuring greater than the lighting reactive power upper limit door value of setting or the lighting active power measured less than the active power lower limit door value of setting and reactive power less than the lighting reactive power lower limit door value of setting; Judge that lighting lamp power factor compensation capacitance breaks down, otherwise repeating step b-c.
2. method for monitoring lighting lamp power factor compensation capacitance fault according to claim 1 is characterized in that described active power and reactive power calculate through the embedded software in power measurement chip and the CPU.
3. method for monitoring lighting lamp power factor compensation capacitance fault according to claim 1, it is characterized in that described lighting lamp power factor compensation capacitance is judged to be fault after, report to the police by warning circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100282007A CN101466193B (en) | 2009-01-16 | 2009-01-16 | Method for monitoring lighting lamp power factor compensation capacitance fault |
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| CN2009100282007A CN101466193B (en) | 2009-01-16 | 2009-01-16 | Method for monitoring lighting lamp power factor compensation capacitance fault |
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| CN101466193A CN101466193A (en) | 2009-06-24 |
| CN101466193B true CN101466193B (en) | 2012-11-21 |
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| US7412842B2 (en) | 2004-04-27 | 2008-08-19 | Emerson Climate Technologies, Inc. | Compressor diagnostic and protection system |
| US7275377B2 (en) | 2004-08-11 | 2007-10-02 | Lawrence Kates | Method and apparatus for monitoring refrigerant-cycle systems |
| US8590325B2 (en) | 2006-07-19 | 2013-11-26 | Emerson Climate Technologies, Inc. | Protection and diagnostic module for a refrigeration system |
| US20080216494A1 (en) | 2006-09-07 | 2008-09-11 | Pham Hung M | Compressor data module |
| US20090037142A1 (en) | 2007-07-30 | 2009-02-05 | Lawrence Kates | Portable method and apparatus for monitoring refrigerant-cycle systems |
| US8393169B2 (en) | 2007-09-19 | 2013-03-12 | Emerson Climate Technologies, Inc. | Refrigeration monitoring system and method |
| US9140728B2 (en) | 2007-11-02 | 2015-09-22 | Emerson Climate Technologies, Inc. | Compressor sensor module |
| WO2012118830A2 (en) | 2011-02-28 | 2012-09-07 | Arensmeier Jeffrey N | Residential solutions hvac monitoring and diagnosis |
| US8964338B2 (en) | 2012-01-11 | 2015-02-24 | Emerson Climate Technologies, Inc. | System and method for compressor motor protection |
| US9310439B2 (en) * | 2012-09-25 | 2016-04-12 | Emerson Climate Technologies, Inc. | Compressor having a control and diagnostic module |
| US9638436B2 (en) | 2013-03-15 | 2017-05-02 | Emerson Electric Co. | HVAC system remote monitoring and diagnosis |
| US9803902B2 (en) | 2013-03-15 | 2017-10-31 | Emerson Climate Technologies, Inc. | System for refrigerant charge verification using two condenser coil temperatures |
| US9551504B2 (en) | 2013-03-15 | 2017-01-24 | Emerson Electric Co. | HVAC system remote monitoring and diagnosis |
| CN106030221B (en) | 2013-04-05 | 2018-12-07 | 艾默生环境优化技术有限公司 | Heat pump system with refrigerant charging diagnostic function |
| CN108990242A (en) * | 2018-06-11 | 2018-12-11 | 江苏联宏智慧能源股份有限公司 | A kind of multi-functional street lamp intelligent controller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5617013A (en) * | 1994-06-13 | 1997-04-01 | Bull Hn Information Systems Italia S.P.A. | Power supply with power factor correction and protection against failures of the power factor correction |
| CN2872792Y (en) * | 2005-10-21 | 2007-02-21 | 北京海捷电器设备有限公司 | Filter energy-saving adapter of high-voltage sodium light |
| CN1950773A (en) * | 2004-02-27 | 2007-04-18 | 威廉·D·麦丹尼尔 | Automatic power factor correction using power measurement chip |
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- 2009-01-16 CN CN2009100282007A patent/CN101466193B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5617013A (en) * | 1994-06-13 | 1997-04-01 | Bull Hn Information Systems Italia S.P.A. | Power supply with power factor correction and protection against failures of the power factor correction |
| CN1950773A (en) * | 2004-02-27 | 2007-04-18 | 威廉·D·麦丹尼尔 | Automatic power factor correction using power measurement chip |
| CN2872792Y (en) * | 2005-10-21 | 2007-02-21 | 北京海捷电器设备有限公司 | Filter energy-saving adapter of high-voltage sodium light |
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Address after: 210046 Nanjing City, Qixia Province, Gan east side of the east side of the building 108, building 01, No. 6, No. Patentee after: JIANGSU LIANHONG SMART ENERGY CO.,LTD. Address before: 210046 Nanjing City, Qixia Province, Gan east side of the east side of the building 108, building 01, No. 6, No. Patentee before: JIANGSU LIANHONG AUTOMATION CO.,LTD. |
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Denomination of invention: Method for monitoring lighting lamp power factor compensation capacitance fault Effective date of registration: 20200108 Granted publication date: 20121121 Pledgee: Nanjing Bank Co.,Ltd. Nanjing North Branch Pledgor: JIANGSU LIANHONG SMART ENERGY CO.,LTD. Registration number: Y2020320000021 |
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