CN101872960A - Phase sequence detection and adjustment method and circuit - Google Patents
Phase sequence detection and adjustment method and circuit Download PDFInfo
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- CN101872960A CN101872960A CN 201010192483 CN201010192483A CN101872960A CN 101872960 A CN101872960 A CN 101872960A CN 201010192483 CN201010192483 CN 201010192483 CN 201010192483 A CN201010192483 A CN 201010192483A CN 101872960 A CN101872960 A CN 101872960A
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Abstract
The invention provides a phase sequence detection and adjustment method and a phase sequence detection and adjustment circuit. The circuit comprises a relay driving circuit, a phase sequence detection circuit, a singlechip control circuit, a relay contact adhesion detection circuit and a power supply circuit, wherein the power supply circuit is connected with the relay driving circuit, the phase sequence detection circuit, the singlechip control circuit and the relay contact adhesion detection circuit respectively; the relay contact adhesion detection circuit and the phase sequence detection circuit sample detection signals and input the signals into the singlechip control circuit; and the singlechip control circuit makes judgment on the phase sequence and outputs a driving signal after analyzing and comparing zero crossing points of two square wave signals. By using the scheme, the phase detection can be accurately and rapidly performed on a three-phase power supply and the output phase sequence can be automatically adjusted, so the equipment accident caused by phase failure, phase lack or voltage imbalance can be prevented.
Description
Technical field:
The present invention relates to the circuit engineering field, refer in particular to a kind of phase sequence detection, method of adjustment and circuit.
Background technology:
At present, many equipment phase sequence to three-phase alternating current when work has certain requirement, promptly only allows folk prescription to running, may cause damage as reverse running.And the phase sequence of three-phase alternating current is normally unknown, even equipment press the normal phase sort run, is keeping in repair or during power line construction, the situation of phase sequence commutation might occur, thereby cause the damage of equipment.Therefore, be badly in need of a kind of circuit that can detect and revise, thereby avoid the harm that brings because of phase sequence dislocation the phase sequence of three-phase alternating current.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of easy, have an automatic detection and automatically adjust the method and the circuit of output phase sequence reliably.
For achieving the above object, technical scheme provided by the present invention is: a kind of phase sequence detects, method of adjustment, power circuit is respectively relay drive circuit, circuit of testing the phase sequence, single chip machine controlling circuit, relay contact bonding testing circuit provides operating voltage, circuit of testing the phase sequence is sampled the sine wave signal of two groups of line voltages of electrical network and is transformed to square-wave signal, and this signal is input in the single chip machine controlling circuit, single chip machine controlling circuit is made phase sequence after by the zero crossing analysis relatively to two square-wave signals and is judged, and output phase sequence drive signal, when phase sequence is positive sequence, then drive the first relay adhesive, second relay discharges; When phase sequence is inverted sequence, then drive the second relay adhesive, first relay discharges, and the three-phase power supply phase sequence output is pressed A, B, C ordering all the time; When circuit of testing the phase sequence detected line Voltage unbalance or phase shortage, single chip machine controlling circuit is no-output then, all not adhesive and warnings of first relay, second relay at this moment; When first relay, second relay not during adhesive, and relay contact bonding testing circuit detects first relay, there is voltage signal the second relay contact lower end, show that the bonding fault takes place in the contact, relay contact bonding testing circuit is sent into detection signal in the single chip machine controlling circuit, single chip machine controlling circuit is handled the signal that receives, simultaneously, all not adhesive and alarm fault of first relay, second relay.
The circuit of finishing above-mentioned described method includes relay drive circuit, circuit of testing the phase sequence, single chip machine controlling circuit, relay contact bonding testing circuit, power circuit, wherein, power circuit respectively with relay drive circuit, circuit of testing the phase sequence, single chip machine controlling circuit, relay contact bonding testing circuit is connected, the input of circuit of testing the phase sequence inserts the A of three phase mains respectively, B, the C phase, first pin of the output of circuit of testing the phase sequence and single chip machine controlling circuit, the 4th pin is connected, the 5th pin of single chip machine controlling circuit is connected with relay drive circuit, first relay, the contact of second relay meets three phase mains A respectively, B, the phase sequence input of C and three-phase power supply phase sequence output terminals A 1, B1, C1, the 6th pin of single chip machine controlling circuit is connected with the output of relay contact bonding testing circuit, and the input of relay contact bonding testing circuit is connected with the three-phase power supply phase sequence output.
The input of described relay contact bonding testing circuit is connected with the wherein two-phase of zero line and three-phase power supply phase sequence output respectively.
The present invention is after having adopted such scheme, power circuit is respectively relay drive circuit, circuit of testing the phase sequence, single chip machine controlling circuit, relay contact bonding testing circuit provides operating voltage, circuit of testing the phase sequence is sampled the sine wave signal of two groups of line voltages of electrical network and is transformed to square-wave signal, and this signal is input in the single chip machine controlling circuit, single chip machine controlling circuit is made phase sequence after by the zero crossing analysis relatively to two square-wave signals and is judged, and output phase sequence drive signal, when phase sequence is positive sequence, then drive the first relay adhesive, second relay discharges; When phase sequence is inverted sequence, then drive the second relay adhesive, first relay discharges, and the three-phase power supply phase sequence output is pressed A, B, C ordering all the time; When circuit of testing the phase sequence detected line Voltage unbalance or phase shortage, single chip machine controlling circuit is no-output then, all not adhesive and warnings of first relay, second relay at this moment; When first relay, second relay not during adhesive, and relay contact bonding testing circuit detects first relay, there is voltage signal the second relay contact lower end, show that the bonding fault takes place in the contact, relay contact bonding testing circuit is sent into detection signal in the single chip machine controlling circuit, single chip machine controlling circuit is handled the signal that receives, simultaneously, all not adhesive and alarm fault of first relay, second relay.Can carry out phase-detection to three phase mains accurately and rapidly and adjust its output phase sequence automatically after adopting this programme, thereby avoid the equipment breakdown that causes because of misphase, phase shortage or Voltage unbalance.
Description of drawings:
Fig. 1 is an integrated circuit schematic diagram of the present invention.
Embodiment:
The invention will be further described below in conjunction with accompanying drawing 1, preferred embodiment of the present invention is: the described a kind of phase sequence of present embodiment detects, method of adjustment is: power circuit 5 is respectively relay drive circuit 1, circuit of testing the phase sequence 2, single chip machine controlling circuit 3, relay contact bonding testing circuit 4 operating voltage is provided, and circuit of testing the phase sequence 2 is with two groups of line voltage U of electrical network
AB, U
ACSine wave signal sampling and be transformed to square-wave signal, and this signal is input in the single chip machine controlling circuit 3, single chip machine controlling circuit 3 is made phase sequence after by the zero crossing analysis relatively to two square-wave signals and is judged, and output phase sequence drive signal, when phase sequence is positive sequence A, B, C, then drive 1 adhesive of first relay K, second relay K 2 discharges; When phase sequence is that inverted sequence A, C, B advance, then drive 2 adhesives of second relay K, first relay K 1 discharges, and the three-phase power supply phase sequence output is pressed A, B, C ordering all the time; When circuit of testing the phase sequence 2 detects line Voltage unbalance or phase shortage, 3 no-outputs of single chip machine controlling circuit, all not adhesive and warnings of first relay K 1, second relay K 2 at this moment; When first relay K 1, second relay K 2 not during adhesive, and relay contact bonding testing circuit 4 detects first relay K 1, there is voltage signal second relay K, 2 contact lower ends, show that the bonding fault takes place in the contact, relay contact bonding testing circuit 4 is sent into detection signal in the single chip machine controlling circuit 3, single chip machine controlling circuit 3 is handled the signal that receives, simultaneously, all not adhesive and alarm fault of first relay K 1, second relay K 2.
The circuit of finishing above-mentioned described method comprises relay drive circuit 1, circuit of testing the phase sequence 2, single chip machine controlling circuit 3, relay contact bonding testing circuit 4, power circuit 5, wherein, power circuit 5 respectively with relay drive circuit 1, circuit of testing the phase sequence 2, single chip machine controlling circuit 3, relay contact bonding testing circuit 4 is connected, the input of circuit of testing the phase sequence 2 inserts the A of three phase mains respectively, B, the C phase, first pin 1 of the output of circuit of testing the phase sequence 2 and single chip machine controlling circuit 3, the 4th pin 4 is connected, the 5th pin 5 of single chip machine controlling circuit 3 is connected with relay drive circuit 1, first relay K 1, the contact of second relay K 2 meets three phase mains A respectively, B, the phase sequence input of C and three-phase power supply phase sequence output terminals A 1, B1, C1, the 6th pin 6 of single chip machine controlling circuit 3 is connected with the output of relay contact bonding testing circuit 4, and the input of relay contact bonding testing circuit 4 is connected with the wherein two-phase of zero line N and three-phase power supply phase sequence output respectively.Can carry out phase-detection to three phase mains accurately and rapidly and adjust its output phase sequence automatically after adopting this programme, thereby avoid the equipment breakdown that causes because of misphase, phase shortage or Voltage unbalance.
The embodiment of the above only is the present invention's preferred embodiment, is not to limit practical range of the present invention with this, so the variation that all shapes according to the present invention, principle are done all should be encompassed in protection scope of the present invention.
Claims (3)
1. a phase sequence detects, method of adjustment, it is characterized in that: power circuit (5) is respectively relay drive circuit (1), circuit of testing the phase sequence (2), single chip machine controlling circuit (3), relay contact bonding testing circuit (4) provides operating voltage, circuit of testing the phase sequence (2) is sampled the sine wave signal of two groups of line voltages of electrical network and is transformed to square-wave signal, and this signal is input in the single chip machine controlling circuit (3), single chip machine controlling circuit (3) is made phase sequence after by the zero crossing analysis relatively to two square-wave signals and is judged, and output phase sequence drive signal, when phase sequence is positive sequence (A, B, C) time, then drive first relay (K1) adhesive, second relay (K2) discharges; When phase sequence is that inverted sequence (A, C, B) is advanced, then drive second relay (K2) adhesive, first relay (K1) discharges, and the three-phase power supply phase sequence output is pressed A, B, C ordering all the time; When circuit of testing the phase sequence (2) detected line Voltage unbalance or phase shortage, single chip machine controlling circuit (3) is no-output then, all not adhesive and warnings of first relay (K1), second relay (K2) at this moment; When first relay (K1), second relay (K2) not during adhesive, and relay contact bonding testing circuit (4) detects first relay (K1), there is voltage signal second relay (K2) contact lower end, show that the bonding fault takes place in the contact, relay contact bonding testing circuit (4) is sent into detection signal in the single chip machine controlling circuit (3), single chip machine controlling circuit (3) is handled the signal that receives, simultaneously, all not adhesive and alarm fault of first relay (K1), second relay (K2).
2. a phase sequence detects, adjust circuit, it is characterized in that: it includes relay drive circuit (1), circuit of testing the phase sequence (2), single chip machine controlling circuit (3), relay contact bonding testing circuit (4), power circuit (5), wherein, power circuit (5) respectively with relay drive circuit (1), circuit of testing the phase sequence (2), single chip machine controlling circuit (3), relay contact bonding testing circuit (4) is connected, the input of circuit of testing the phase sequence (2) inserts the A of three phase mains respectively, B, the C phase, first pin (1) of the output of circuit of testing the phase sequence (2) and single chip machine controlling circuit (3), the 4th pin (4) is connected, the 5th pin (5) of single chip machine controlling circuit (3) is connected with relay drive circuit (1), first relay (K1), the contact of second relay (K2) meets three phase mains A respectively, B, the phase sequence input of C and three-phase power supply phase sequence output terminals A 1, B1, C1, the 6th pin (6) of single chip machine controlling circuit (3) is connected with the output of relay contact bonding testing circuit (4), and the input of relay contact bonding testing circuit (4) is connected with the three-phase power supply phase sequence output.
3. a kind of phase sequence according to claim 2 detects, adjusts circuit, it is characterized in that: the input of relay contact bonding testing circuit (4) is connected with the wherein two-phase of zero line (N) and three-phase power supply phase sequence output respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192483 CN101872960A (en) | 2010-06-01 | 2010-06-01 | Phase sequence detection and adjustment method and circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010192483 CN101872960A (en) | 2010-06-01 | 2010-06-01 | Phase sequence detection and adjustment method and circuit |
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| CN101872960A true CN101872960A (en) | 2010-10-27 |
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| CN 201010192483 Pending CN101872960A (en) | 2010-06-01 | 2010-06-01 | Phase sequence detection and adjustment method and circuit |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245842A (en) * | 2013-04-18 | 2013-08-14 | 国家电网公司 | Detection method for full-system simulation running of 10-35 kV newly-mounted electrical device |
| CN103412201A (en) * | 2013-08-28 | 2013-11-27 | 徐州徐工施维英机械有限公司 | 1.14kV power grid phase sequence detection device and method |
| CN103779949A (en) * | 2012-10-19 | 2014-05-07 | 李尔公司 | Apparatus and method for detecting a phase sequence in a vehicle |
| CN103969582A (en) * | 2014-05-21 | 2014-08-06 | 中国化学工程第十一建设有限公司 | Phase sequence and steering measuring method and device for three-phase motor |
| CN104020362A (en) * | 2013-03-01 | 2014-09-03 | 珠海格力电器股份有限公司 | Three-phase load debugging control circuit |
| CN104158148A (en) * | 2014-07-31 | 2014-11-19 | 国家电网公司 | Autocorrelation and phase failure protection device for phase sequence of three-phase power source of plate type oil filter machine |
| CN105785142A (en) * | 2016-03-28 | 2016-07-20 | 国网山东省电力公司东营市东营区供电公司 | Bus connection phase sequence detection method and device of complete set of electrical equipment |
| CN107884734A (en) * | 2017-10-24 | 2018-04-06 | 广东电网有限责任公司茂名供电局 | A kind of new phase-sequence meter test device |
| CN110780127A (en) * | 2019-12-03 | 2020-02-11 | 徐州海伦哲特种车辆有限公司 | Portable automatic phase sequence detection device |
| CN113589057A (en) * | 2021-07-30 | 2021-11-02 | 湖北三江航天万峰科技发展有限公司 | Phase sequence switching device and method |
| CN114019404A (en) * | 2021-11-05 | 2022-02-08 | 深圳市泛海三江电子股份有限公司 | Three-phase alternating current power supply sequence detection method and system |
| CN115616305A (en) * | 2022-12-15 | 2023-01-17 | 广东美的暖通设备有限公司 | Three-phase three-wire system alternating current phase sequence detection method and device, motor and storage medium |
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| JP2000173428A (en) * | 1998-12-01 | 2000-06-23 | Sanyo Electric Co Ltd | Main relay welding detecting device for electric car |
| CN101073133A (en) * | 2004-11-30 | 2007-11-14 | 罗伯特绍控制器公司 | Method of detecting and correcting relay tack weld failures |
| CN201025671Y (en) * | 2006-10-20 | 2008-02-20 | 李建华 | Automatic converter for power phase sequence |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9562935B2 (en) | 2012-10-19 | 2017-02-07 | Lear Corporation | Apparatus and method for detecting a phase sequence in a vehicle |
| CN103779949A (en) * | 2012-10-19 | 2014-05-07 | 李尔公司 | Apparatus and method for detecting a phase sequence in a vehicle |
| CN103779949B (en) * | 2012-10-19 | 2017-03-29 | 李尔公司 | Apparatus and method for detecting the phase sequence in vehicle |
| CN104020362A (en) * | 2013-03-01 | 2014-09-03 | 珠海格力电器股份有限公司 | Three-phase load debugging control circuit |
| CN103245842A (en) * | 2013-04-18 | 2013-08-14 | 国家电网公司 | Detection method for full-system simulation running of 10-35 kV newly-mounted electrical device |
| CN103245842B (en) * | 2013-04-18 | 2015-10-07 | 国家电网公司 | 10 ~ 35kV new clothes electric device total system dry run detection method |
| CN103412201A (en) * | 2013-08-28 | 2013-11-27 | 徐州徐工施维英机械有限公司 | 1.14kV power grid phase sequence detection device and method |
| CN103412201B (en) * | 2013-08-28 | 2015-11-25 | 徐州徐工施维英机械有限公司 | 1.14kV electrical network detection device for phase sequence and method |
| CN103969582A (en) * | 2014-05-21 | 2014-08-06 | 中国化学工程第十一建设有限公司 | Phase sequence and steering measuring method and device for three-phase motor |
| CN103969582B (en) * | 2014-05-21 | 2016-05-18 | 中国化学工程第十一建设有限公司 | A kind of three-phase electric machine phase sequence with turn to assay method and device |
| CN104158148A (en) * | 2014-07-31 | 2014-11-19 | 国家电网公司 | Autocorrelation and phase failure protection device for phase sequence of three-phase power source of plate type oil filter machine |
| CN105785142A (en) * | 2016-03-28 | 2016-07-20 | 国网山东省电力公司东营市东营区供电公司 | Bus connection phase sequence detection method and device of complete set of electrical equipment |
| CN107884734A (en) * | 2017-10-24 | 2018-04-06 | 广东电网有限责任公司茂名供电局 | A kind of new phase-sequence meter test device |
| CN107884734B (en) * | 2017-10-24 | 2023-04-28 | 广东电网有限责任公司茂名供电局 | Phase sequence table testing arrangement |
| CN110780127A (en) * | 2019-12-03 | 2020-02-11 | 徐州海伦哲特种车辆有限公司 | Portable automatic phase sequence detection device |
| CN113589057A (en) * | 2021-07-30 | 2021-11-02 | 湖北三江航天万峰科技发展有限公司 | Phase sequence switching device and method |
| CN113589057B (en) * | 2021-07-30 | 2023-12-15 | 湖北三江航天万峰科技发展有限公司 | Phase sequence switching device and method |
| CN114019404A (en) * | 2021-11-05 | 2022-02-08 | 深圳市泛海三江电子股份有限公司 | Three-phase alternating current power supply sequence detection method and system |
| CN115616305A (en) * | 2022-12-15 | 2023-01-17 | 广东美的暖通设备有限公司 | Three-phase three-wire system alternating current phase sequence detection method and device, motor and storage medium |
| CN115616305B (en) * | 2022-12-15 | 2023-03-10 | 广东美的暖通设备有限公司 | Three-phase three-wire system alternating current phase sequence detection method and device, motor and storage medium |
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Application publication date: 20101027 |