CN201740815U - Synchronous phasor measurement device - Google Patents
Synchronous phasor measurement device Download PDFInfo
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- CN201740815U CN201740815U CN2010202220431U CN201020222043U CN201740815U CN 201740815 U CN201740815 U CN 201740815U CN 2010202220431 U CN2010202220431 U CN 2010202220431U CN 201020222043 U CN201020222043 U CN 201020222043U CN 201740815 U CN201740815 U CN 201740815U
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- secondary winding
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- transducer
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 9
- 238000005259 measurement Methods 0.000 title abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 27
- 238000001914 filtration Methods 0.000 claims description 3
- 230000003245 working effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000002955 isolation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model relates to a synchronous phasor measurement device which is characterized by comprising a measurement level current transducer, a protection level current transducer, a voltage transducer, 3 filter circuits, 3 A/D conversion circuits, a DSP circuit, a data bus, a photoelectric isolation circuit, a relay, a synchronous clock circuit and a CPU, wherein the measurement level current transducer, the protection level current transducer and the voltage transducer are respectively connected with the DSP circuit by a low-pass filter circuit and the A/D conversion circuits, a CT measurement level secondary winding is in the accuracy class of 0.2, the overload capacity of the measurement level current transducer is 1.2 times of the rated current of the CT secondary winding, a CT protection level secondary winding is in the accuracy class of 5P, and the overload capacity of the protection level current transducer is 2 times of the rated current of the CT protection level secondary winding under continuous working, 20 times of the rated current of the CT protection level secondary winding within 10 seconds and 40 times of the rated current of the CT protection level secondary winding within 1 second. The system has both of a dynamic-state function and a transient-state function and is beneficial to the development of high-grade application functions.
Description
Technical field
The utility model belongs to generating, power transformation engineering specialty generating plant, substation project electrical design technical field, is mainly used in PMU device in generating plant, the transformer station (Phasor Measurement Unit-synchronous phasor measuring device) manufacturing wiring is installed.
Background technology
At present; the PMU device inserts element to each and only possesses A-N, B-N, one group of alternating current loop input of C-N; generally insert CT (Current Transformer-current transformer) in generating plant, the substation project and measure the level Secondary Winding, insert CT protected level Secondary Winding in the minority engineering.Though inserting a CT measurement level Secondary Winding, the PMU device satisfied the measuring accuracy requirement of electric system under stable state, current intelligence, when big disturbance produces short-circuit current state of saturation will appear but CT measures the level Secondary Winding, can not be with the accurate progress of disease of primary current to secondary side, certainly will cause system can't use various application functions in the dynamic buckling process that transient state and big disturbance cause.Corresponding with it; though the CT protected level Secondary Winding that inserts the PMU device has satisfied the requirement of various application functions in the dynamic buckling process that electric system and big disturbance cause; but the measuring accuracy of CT protected level Secondary Winding under power system mesomeric state, current intelligence can not meet the demands, and certainly will influence the various application functions calculating of system, precision of analysis in stable state, the dynamic process.
The utility model content
Only insert CT and measure the deficiency that the level Secondary Winding can't the various application functions of using system in the dynamic buckling process that electrical power system transient and big disturbance cause in order to overcome the PMU device.Or the PMU device only inserts CT protected level Secondary Winding, the deficiency of the various application functions calculating of the system that influences, analysis result accuracy when power system mesomeric state, dynamic operation.The utility model provides a kind of PMU device that CT measures level and protected level Secondary Winding of gathering simultaneously, has not only satisfied the use of electric system under stable state, current intelligence, satisfies the various application in the dynamic buckling process that transient state and big disturbance cause simultaneously.
For achieving the above object; the utility model provides a kind of synchronous phasor measuring device; it is characterized in that: comprise and measure the level power pack; the protected level power pack; voltage changer; 3 filtering circuits; 3 A/D change-over circuits; the DSP circuit; data bus; photoelectric isolating circuit; relay; synchronous clock circuit; CPU; measure level power pack and protected level power pack and voltage changer and pass through low-pass filter circuit respectively; the A/D change-over circuit connects the DSP circuit; it is 0.2 class of accuracy that CT measures the level Secondary Winding; the overload capacity of measuring the level power pack is 1.2 times of CT Secondary Winding rated current; CT protected level Secondary Winding is the 5P class of accuracy, and the overload capacity of protected level power pack is 2 times of continuous workings of CT protected level Secondary Winding rated current; 20 times 10 seconds; 40 times 1 second.
The beneficial effects of the utility model are: system has both dynamically, the transient state function, gives full play to the meticulous synchronism of building of cost substantial contribution and the effect of real-time platform, also helps the exploitation of senior application function.The Access Layer of holding at the factory station is directly realized the integration of dynamic data and Temporal Data, alleviates the workload of dispatching terminal integrated data platform.
Description of drawings
Accompanying drawing is a theory diagram of the present utility model.
Embodiment
With reference to accompanying drawing; the utility model comprises measures the level power pack; the protected level power pack; voltage changer; 3 filtering circuits; 3 A/D change-over circuits; the DSP circuit; data bus; photoelectric isolating circuit; relay; synchronous clock circuit; CPU; measure level power pack and protected level power pack and voltage changer and pass through low-pass filter circuit respectively; the A/D change-over circuit connects the DSP circuit; it is 0.2 class of accuracy that CT measures the level Secondary Winding; the overload capacity of measuring the level power pack is 1.2 times of CT Secondary Winding rated current; CT protected level Secondary Winding is the 5P class of accuracy, and the overload capacity of protected level power pack is 2 times of continuous workings of CT protected level Secondary Winding rated current; 20 times 10 seconds; 40 times 1 second.
Claims (1)
1. synchronous phasor measuring device; it is characterized in that: comprise and measure the level power pack; the protected level power pack; voltage changer; 3 filtering circuits; 3 A/D change-over circuits; the DSP circuit; data bus; photoelectric isolating circuit; relay; synchronous clock circuit; CPU; measure level power pack and protected level power pack and voltage changer and pass through low-pass filter circuit respectively; the A/D change-over circuit connects the DSP circuit; it is 0.2 class of accuracy that CT measures the level Secondary Winding; the overload capacity of measuring the level power pack is 1.2 times of CT Secondary Winding rated current; CT protected level Secondary Winding is the 5P class of accuracy, and the overload capacity of protected level power pack is 2 times of continuous workings of CT protected level Secondary Winding rated current; 20 times 10 seconds; 40 times 1 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202220431U CN201740815U (en) | 2010-06-11 | 2010-06-11 | Synchronous phasor measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202220431U CN201740815U (en) | 2010-06-11 | 2010-06-11 | Synchronous phasor measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201740815U true CN201740815U (en) | 2011-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202220431U Expired - Lifetime CN201740815U (en) | 2010-06-11 | 2010-06-11 | Synchronous phasor measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201740815U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944697A (en) * | 2012-11-06 | 2013-02-27 | 昆山北极光电子科技有限公司 | Three-dimensional coordinate acceleration measuring circuit |
| CN103163374A (en) * | 2011-12-09 | 2013-06-19 | 中国北车股份有限公司大连电力牵引研发中心 | Detection method and detection device for locomotive synchronizing signal phase, power supply system and electric locomotive |
| CN103944467A (en) * | 2014-04-02 | 2014-07-23 | 南京保合太和电力科技有限公司 | Generator power transmitting system and method |
| CN104198814A (en) * | 2014-09-11 | 2014-12-10 | 国家电网公司 | Digital phase position checking device by using identical clock source for calibrating sampling time |
| CN105242225A (en) * | 2015-09-06 | 2016-01-13 | 中国电力科学研究院 | Dynamic phasor measurement device calibration system and calibration method thereof |
| CN105785126A (en) * | 2016-04-18 | 2016-07-20 | 国网山东省电力公司郓城县供电公司 | Novel power grid phasor synchronization measurement device |
| CN109374970A (en) * | 2018-10-24 | 2019-02-22 | 南方电网科学研究院有限责任公司 | Real-time check synchronous phasor measurement method, device, equipment and storage medium |
| CN109900960A (en) * | 2019-03-25 | 2019-06-18 | 杭州电力设备制造有限公司 | A kind of synchronous phasor measuring device |
-
2010
- 2010-06-11 CN CN2010202220431U patent/CN201740815U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163374A (en) * | 2011-12-09 | 2013-06-19 | 中国北车股份有限公司大连电力牵引研发中心 | Detection method and detection device for locomotive synchronizing signal phase, power supply system and electric locomotive |
| CN103163374B (en) * | 2011-12-09 | 2015-04-29 | 中国北车股份有限公司 | Detection method and detection device for locomotive synchronizing signal phase, power supply system and electric locomotive |
| CN102944697A (en) * | 2012-11-06 | 2013-02-27 | 昆山北极光电子科技有限公司 | Three-dimensional coordinate acceleration measuring circuit |
| CN103944467A (en) * | 2014-04-02 | 2014-07-23 | 南京保合太和电力科技有限公司 | Generator power transmitting system and method |
| CN103944467B (en) * | 2014-04-02 | 2016-05-18 | 南京保合太和电力科技有限公司 | generator power transmitting system and method |
| CN104198814A (en) * | 2014-09-11 | 2014-12-10 | 国家电网公司 | Digital phase position checking device by using identical clock source for calibrating sampling time |
| CN105242225A (en) * | 2015-09-06 | 2016-01-13 | 中国电力科学研究院 | Dynamic phasor measurement device calibration system and calibration method thereof |
| CN105242225B (en) * | 2015-09-06 | 2019-03-22 | 中国电力科学研究院 | A kind of calibration system and its calibration method of dynamic phasor measurement device |
| CN105785126A (en) * | 2016-04-18 | 2016-07-20 | 国网山东省电力公司郓城县供电公司 | Novel power grid phasor synchronization measurement device |
| CN109374970A (en) * | 2018-10-24 | 2019-02-22 | 南方电网科学研究院有限责任公司 | Real-time check synchronous phasor measurement method, device, equipment and storage medium |
| CN109900960A (en) * | 2019-03-25 | 2019-06-18 | 杭州电力设备制造有限公司 | A kind of synchronous phasor measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP NORTHEAST Free format text: FORMER NAME: NORTHEASTERN ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 130021 Jilin City, Changchun province people's street, No. 4368 Patentee after: Co., Ltd of Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Address before: 130021 Jilin City, Changchun province people's street, No. 4368 Patentee before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |