CN103558471A - Method for measuring response time of straightly-hung type dynamic reactive generating devices with unified time scales - Google Patents
Method for measuring response time of straightly-hung type dynamic reactive generating devices with unified time scales Download PDFInfo
- Publication number
- CN103558471A CN103558471A CN201310547091.6A CN201310547091A CN103558471A CN 103558471 A CN103558471 A CN 103558471A CN 201310547091 A CN201310547091 A CN 201310547091A CN 103558471 A CN103558471 A CN 103558471A
- Authority
- CN
- China
- Prior art keywords
- current
- voltage
- current collection
- collection circuit
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a method for measuring the response time of straightly-hung type dynamic reactive generating devices with unified time scales. The problem that in the prior art, the response time of straightly-hung type dynamic reactive generating devices cannot be accurately measured is solved. The method includes the steps of selecting a current collection circuit with the largest load to serve as a first current collection circuit, enabling a breaker to be arranged between a low-voltage side bus and the first current collection circuit, operating the breaker to cut off the first current collection circuit, and completing sampling on response current waveforms and response voltage waveforms; in a computer, using a dispersed data effective value calculating tool to build a response time calculating model, setting the calculating time to be 800 milliseconds, generating smooth response process voltage and current effective value curves, and obtaining the accurate response time of the straightly-hung type dynamic reactive generating devices. The high-and-low-voltage side voltage and current waveforms of the straightly-hung type dynamic reactive generating devices can be measured, the measured data are accurate and reliable, and the method is particularly suitable for power grid sites.
Description
Technical field
The present invention relates to a kind of dynamic reactive generating means accessing to the determinator of the response time of system voltage disturbance and method in electrical network.
Background technology
Wind energy turbine set accesses after electrical network on a large scale, and the application of large quantities of power electronic equipments has caused the extensive off-grid of new problem, particularly wind-powered electricity generation to electrical network, can electrical network be caused and be had a strong impact on.For the safe and stable operation of safeguards system, the response time of wind energy turbine set dynamic reactive generating means has been proposed to new requirement.According to relevant requirements, the wind energy turbine set direct hanging type dynamic reactive generating means response time should be in 30 milliseconds, this just need to measure the response time of direct hanging type dynamic reactive generating means at the scene effectively truly, thereby the performance of field erected wind energy turbine set direct hanging type dynamic reactive generating means is evaluated.Existing assay method is to rely on direct hanging type dynamic reactive generating means self to send out pulse to simulate manufacture disturbance, the truth that can not reflect disturbing source, and cannot detect all sidedly the coordination and response waveform of direct hanging type dynamic reactive generating means various piece, cause the mensuration of response time inaccurately, and then cause the performance evaluation of direct hanging type dynamic reactive generating means to lose authenticity.
Summary of the invention
The invention provides a kind of target direct hanging type dynamic reactive generating means response time assay method when unified, solved the response time to direct hanging type dynamic reactive generating means that prior art exists to measure inaccurate problem.
The present invention overcomes the above problems by following scheme:
The determinator of target direct hanging type dynamic reactive generating means response time during a kind of unification, comprise high-voltage side bus, low-pressure side bus, direct hanging type dynamic reactive generating means and wave tracer, on high-voltage side bus, be electrically connected with respectively transformer, high side voltage mutual inductor, on low-pressure side bus, be electrically connected with respectively the first current collection circuit, the second current collection circuit, direct hanging type dynamic reactive generating means and low-pressure side voltage transformer (VT), between low-pressure side bus and the first current collection circuit, be provided with isolating switch, on the first current collection circuit, be provided with the first current collection line current mutual inductor, the secondary side A phase of the first current collection line current mutual inductor is electrically connected to the second current waveform input terminal of wave tracer, on the second current collection circuit, be provided with the second current collection line current mutual inductor, the secondary side A phase of the second current collection line current mutual inductor is electrically connected to the 3rd current waveform input terminal of wave tracer, on the line between bus and direct hanging type dynamic reactive generating means, be provided with reactive generating device connection line current transformer, the secondary side A phase of reactive generating device connection line current transformer is electrically connected to the 4th current waveform input terminal of wave tracer, on transformer, be provided with high voltage side of transformer current transformer, the secondary side A phase of high voltage side of transformer current transformer is electrically connected to the first current waveform input terminal of wave tracer, the secondary side A phase of high side voltage mutual inductor is electrically connected to the first voltage waveform input terminal of wave tracer, second of the secondary side A phase of low-pressure side voltage transformer (VT) and wave tracer, the 3rd, the 4th voltage waveform input terminal is electrically connected to.
Second, third of wave tracer, the 4th voltage waveform input terminal are connected in parallel.
Time a target direct hanging type dynamic reactive generating means response time assay method, comprise the following steps:
The first step, to select the maximum current collection circuit of load be the first current collection circuit, then to select current collection circuits for other normal operations be the second current collection circuit;
Second step, between low-pressure side bus and the first current collection circuit, be provided with isolating switch, the first current collection line current mutual inductor is set on the first current collection circuit, the secondary side A phase of the first current collection line current mutual inductor is electrically connected to the second current waveform input terminal of wave tracer, the second current collection line current mutual inductor is set on the second current collection circuit, the secondary side A phase of the second current collection line current mutual inductor is electrically connected to the 3rd current waveform input terminal of wave tracer, on the line between low-pressure side bus and direct hanging type dynamic reactive generating means, reactive generating device connection line current transformer is set, the secondary side A phase of reactive generating device connection line current transformer is electrically connected to the 4th current waveform input terminal of wave tracer, high voltage side of transformer current transformer is set on transformer, the secondary side A phase of high voltage side of transformer current transformer is electrically connected to the first current waveform input terminal of wave tracer, high side voltage mutual inductor is set on high-voltage side bus, the secondary side A phase of high side voltage mutual inductor is electrically connected to the first voltage waveform input terminal of wave tracer, low-pressure side voltage transformer (VT) is set on low-pressure side bus, by second of the secondary side A phase of low-pressure side voltage transformer (VT) and wave tracer, the 3rd, the 4th voltage waveform input terminal is electrically connected to, described in this step, the mode of connection has guaranteed that the waveform of each measuring point is unified under same markers,
The 3rd step, the Sudden Changing Rate of electric current arranges wave tracer while disconnecting according to isolating switch on the first current collection circuit, and the record ripple time is set is 800 milliseconds, starts wave tracer;
The 4th step, operating breaker, cut off the first current collection circuit.During from cut-out, start timing, excessively after three minutes, download wave tracer data, complete the sampling of response current waveform and response voltage waveform;
The 5th step, use wave form analysis software, analyze voltage, the current waveform sampled data downloaded.Sample waveform is derived to the edlin of going forward side by side with the form of discrete point, finally form ASCII fromat data file, be directed in computing machine;
The 6th step, in computing machine, utilize " discrete data is calculated effective value instrument ", build response time computation model, be set computing time is 800 milliseconds, generates level and smooth response process voltage, current effective value curve;
The 7th step, effective value curve is carried out to scale, the system voltage of take exceeds voltage interval of acceptance as response starting point, the direct hanging type dynamic reactive generating means output current of take reach desired value 90% as response end point, obtain the accurate direct hanging type dynamic reactive generating means response time.
The present invention has the meritorious disturbance of utilization and causes the fluctuation that voltage and current is idle, system voltage disturbance that is virtually reality like reality, can be directly under unified markers, record direct hanging type dynamic reactive generating means, current collection circuit and transformer high and low pressure side voltage, current waveform, test data accurately and reliably, is particularly suitable in the on-the-spot use of electrical network.
Accompanying drawing explanation
Fig. 1 is the structural representation of testing circuit of the present invention;
Fig. 2 is sampled data export schematic diagram of the present invention;
Fig. 3 is response time computation model schematic diagram of the present invention;
Fig. 4 is response time scale schematic diagram of the present invention.
Embodiment
The determinator of target direct hanging type dynamic reactive generating means response time during a kind of unification, comprise high-voltage side bus 1, low-pressure side bus 2, direct hanging type dynamic reactive generating means 3 and wave tracer 4, on high-voltage side bus 1, be electrically connected with respectively transformer 5, high side voltage mutual inductor 6, on low-pressure side bus 2, be electrically connected with respectively the first current collection circuit 7, the second current collection circuit 8, direct hanging type dynamic reactive generating means 3 and low-pressure side voltage transformer (VT) 9, between low-pressure side bus 2 and the first current collection circuit 7, be provided with isolating switch 10, on the first current collection circuit 7, be provided with the first current collection line current mutual inductor 11, the secondary side A phase of the first current collection line current mutual inductor 11 is electrically connected to the second current waveform input terminal of wave tracer 4, on the second current collection circuit 8, be provided with the second current collection line current mutual inductor 12, the secondary side A phase of the second current collection line current mutual inductor 12 is electrically connected to the 3rd current waveform input terminal of wave tracer 4, on the line between low-pressure side bus 2 and direct hanging type dynamic reactive generating means 3, be provided with reactive generating device connection line current transformer 13, the secondary side A phase of reactive generating device connection line current transformer 13 is electrically connected to the 4th current waveform input terminal of wave tracer 4, on transformer 5, be provided with high voltage side of transformer current transformer 14, the secondary side A phase of high voltage side of transformer current transformer 14 is electrically connected to the first current waveform input terminal of wave tracer 4, the secondary side A phase of high side voltage mutual inductor 6 is electrically connected to the first voltage waveform input terminal of wave tracer 4, second of the secondary side A phase of low-pressure side voltage transformer (VT) 9 and wave tracer 4, the 3rd, the 4th voltage waveform input terminal is electrically connected to.
Second, third of wave tracer 4, the 4th voltage waveform input terminal are connected in parallel.
The assay method of target direct hanging type dynamic reactive generating means response time while unifying, comprises the following steps:
The first step, to select the maximum current collection circuit of load be that the active power of the first current collection circuit 7, the first current collection circuits 7 requires to be greater than 80% of rated power, then to select current collection circuits for other normal operations be the second current collection circuit 8;
Second step, between low-pressure side bus 2 and the first current collection circuit 7, be provided with isolating switch 10, the first current collection line current mutual inductor 11 is set on the first current collection circuit 7, the secondary side A phase of the first current collection line current mutual inductor 11 is electrically connected to the second current waveform input terminal of wave tracer 4, the second current collection line current mutual inductor 12 is set on the second current collection circuit 8, the secondary side A phase of the second current collection line current mutual inductor 12 is electrically connected to the 3rd current waveform input terminal of wave tracer 4, on the line between low-pressure side bus 2 and direct hanging type dynamic reactive generating means 3, reactive generating device connection line current transformer 13 is set, the secondary side A phase of reactive generating device connection line current transformer 13 is electrically connected to the 4th current waveform input terminal of wave tracer 4, high voltage side of transformer current transformer 14 is set on transformer 5, the secondary side A phase of high voltage side of transformer current transformer 14 is electrically connected to the first current waveform input terminal of wave tracer 4, high side voltage mutual inductor 6 is set on high-voltage side bus 1, the secondary side A phase of high side voltage mutual inductor 6 is electrically connected to the first voltage waveform input terminal of wave tracer 4, low-pressure side voltage transformer (VT) 9 is set on low-pressure side bus 2, by second of the secondary side A phase of low-pressure side voltage transformer (VT) 9 and wave tracer 4, the 3rd, the 4th voltage waveform input terminal is electrically connected to, described in this step, the mode of connection has guaranteed that the waveform of each measuring point is unified under same markers,
The 3rd step, the Sudden Changing Rate of electric current arranges wave tracer 4 while disconnecting according to the isolating switch 10 on the first current collection circuit 7, and the record ripple time is set is 800 milliseconds, starts wave tracer 4;
The 4th step, operating breaker 10, cut off the first current collection circuit 7.During from cut-out, start timing, excessively after three minutes, download wave tracer 4 data, complete the sampling of response current waveform and response voltage waveform;
The 5th step, use wave form analysis software, analyze voltage, the current waveform sampled data downloaded.Sample waveform is derived to the edlin of going forward side by side with the form of discrete point, finally form ASCII fromat data file, be directed in computing machine;
The 6th step, in computing machine, utilize " discrete data is calculated effective value instrument ", build response time computation model, be set computing time is 800 milliseconds, generates level and smooth response process voltage effective value curve 15 and current effective value curve 16;
The 7th step, voltage effective value curve 15, current effective value curve 16 are carried out to scale, the system voltage of take exceeds voltage interval of acceptance as response starting point 17, the direct hanging type dynamic reactive generating means output current of take reach desired value 90% as response end point 18, obtain the accurate direct hanging type dynamic reactive generating means response time.
This device and method is based on conventional wave tracer and power system simulation software, and connection type and analytical approach are simple, and test result is intuitively accurate, has stronger portability.
Claims (1)
1. the assay method of target direct hanging type dynamic reactive generating means response time while unifying, comprises the following steps:
The first step, to select the maximum current collection circuit of load be the first current collection circuit (7), and the active power of the first current collection circuit (7) requires to be greater than 80% of rated power, then to select current collection circuits for other normal operations be the second current collection circuit (8);
Second step, between low-pressure side bus (2) and the first current collection circuit (7), be provided with isolating switch (10), the first current collection line current mutual inductor (11) is set on the first current collection circuit (7), the secondary side A phase of the first current collection line current mutual inductor (11) is electrically connected to the second current waveform input terminal of wave tracer (4), the second current collection line current mutual inductor (12) is set on the second current collection circuit (8), the secondary side A phase of the second current collection line current mutual inductor (12) is electrically connected to the 3rd current waveform input terminal of wave tracer (4), on the line between low-pressure side bus (2) and direct hanging type dynamic reactive generating means (3), reactive generating device connection line current transformer (13) is set, the secondary side A phase of reactive generating device connection line current transformer (13) is electrically connected to the 4th current waveform input terminal of wave tracer (4), high voltage side of transformer current transformer (14) is set on transformer (5), the secondary side A phase of high voltage side of transformer current transformer (14) is electrically connected to the first current waveform input terminal of wave tracer (4), at high-voltage side bus (1), high side voltage mutual inductor (6) is set, the secondary side A phase of high side voltage mutual inductor (6) is electrically connected to the first voltage waveform input terminal of wave tracer (4), low-pressure side voltage transformer (VT) (9) is set on low-pressure side bus (2), by second of the secondary side A phase of low-pressure side voltage transformer (VT) (9) and wave tracer (4), the 3rd, the 4th voltage waveform input terminal is electrically connected to, described in this step, the mode of connection has guaranteed that the waveform of each measuring point is unified under same markers,
The 3rd step, the Sudden Changing Rate of electric current arranges wave tracer (4) while disconnecting according to isolating switch (10) on the first current collection circuit (7), and the record ripple time is set is 800 milliseconds, starts wave tracer (4);
The 4th step, operating breaker (10), cut off the first current collection circuit (7), during from cut-out, starts timing, excessively after three minutes, downloads wave tracer (4) data, completes the sampling of response current waveform and response voltage waveform;
The 5th step, use wave form analysis software, analyze voltage, the current waveform sampled data downloaded; Sample waveform is derived to the edlin of going forward side by side with the form of discrete point, finally form ASCII fromat data file, be directed in computing machine;
The 6th step, in computing machine, utilize " discrete data is calculated effective value instrument ", build response time computation model, be set computing time is 800 milliseconds, generates level and smooth response process voltage effective value curve (15) and current effective value curve (16);
The 7th step, voltage effective value curve (15), current effective value curve (16) are carried out to scale, the system voltage of take exceeds voltage interval of acceptance as response starting point (17), the direct hanging type dynamic reactive generating means output current of take reach desired value 90% as response end point (18), obtain the accurate direct hanging type dynamic reactive generating means response time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310547091.6A CN103558471A (en) | 2013-11-07 | 2013-11-07 | Method for measuring response time of straightly-hung type dynamic reactive generating devices with unified time scales |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310547091.6A CN103558471A (en) | 2013-11-07 | 2013-11-07 | Method for measuring response time of straightly-hung type dynamic reactive generating devices with unified time scales |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103558471A true CN103558471A (en) | 2014-02-05 |
Family
ID=50012773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310547091.6A Pending CN103558471A (en) | 2013-11-07 | 2013-11-07 | Method for measuring response time of straightly-hung type dynamic reactive generating devices with unified time scales |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103558471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527528A (en) * | 2016-02-18 | 2016-04-27 | 云南电网有限责任公司电力科学研究院 | Intelligent substation closed loop testing method and system |
| CN108107287A (en) * | 2017-06-07 | 2018-06-01 | 国网山西省电力公司电力科学研究院 | Based on closed loop response dynamic reactive generating means device for detecting performance and detection method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0251075A (en) * | 1988-08-12 | 1990-02-21 | Nissin Electric Co Ltd | Arrester monitoring apparatus |
| CN2919642Y (en) * | 2006-06-23 | 2007-07-04 | 辽宁立德电力电子有限公司 | Static reactive power compensator with function of real-time monitoring, displaying and wave-recording |
| CN102053203A (en) * | 2010-11-04 | 2011-05-11 | 武汉国测恒通智能仪器有限公司 | Detection method and device for high-voltage power quality |
| CN102981079A (en) * | 2012-11-29 | 2013-03-20 | 山西省电力公司电力科学研究院 | Response waveform detection device and method for straightly hanging type reactive power generation device |
| CN203037759U (en) * | 2012-11-29 | 2013-07-03 | 山西省电力公司电力科学研究院 | Detection apparatus for response waveform of dynamic reactive power compensation device |
-
2013
- 2013-11-07 CN CN201310547091.6A patent/CN103558471A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0251075A (en) * | 1988-08-12 | 1990-02-21 | Nissin Electric Co Ltd | Arrester monitoring apparatus |
| CN2919642Y (en) * | 2006-06-23 | 2007-07-04 | 辽宁立德电力电子有限公司 | Static reactive power compensator with function of real-time monitoring, displaying and wave-recording |
| CN102053203A (en) * | 2010-11-04 | 2011-05-11 | 武汉国测恒通智能仪器有限公司 | Detection method and device for high-voltage power quality |
| CN102981079A (en) * | 2012-11-29 | 2013-03-20 | 山西省电力公司电力科学研究院 | Response waveform detection device and method for straightly hanging type reactive power generation device |
| CN203037759U (en) * | 2012-11-29 | 2013-07-03 | 山西省电力公司电力科学研究院 | Detection apparatus for response waveform of dynamic reactive power compensation device |
Non-Patent Citations (1)
| Title |
|---|
| 拜润卿 等: "风电基地动态无功补偿装置参数实测与分析", 《中国电力》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527528A (en) * | 2016-02-18 | 2016-04-27 | 云南电网有限责任公司电力科学研究院 | Intelligent substation closed loop testing method and system |
| CN108107287A (en) * | 2017-06-07 | 2018-06-01 | 国网山西省电力公司电力科学研究院 | Based on closed loop response dynamic reactive generating means device for detecting performance and detection method |
| CN108107287B (en) * | 2017-06-07 | 2023-04-25 | 国网山西省电力公司电力科学研究院 | Performance detection device and method based on closed-loop response dynamic reactive power generation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102981079B (en) | Response waveform detection method for straightly hanging type reactive power generation device | |
| CN203965613U (en) | A kind of emulation test system of earth-fault indicator performance | |
| CN103954925B (en) | A kind of fault oscillograph dynamic testing method based on RTDS real-time simulation | |
| CN103698695A (en) | Multifunctional electrical characteristic testing device and testing method for high-voltage circuit breaker | |
| CN203299286U (en) | Photovoltaic grid-connected inverter detection platform | |
| CN103676623B (en) | Target dynamic reactive generating means response time assay method time unified | |
| CN205038273U (en) | Measurement device for earthing device power frequency and impact characteristic parameter | |
| CN104267365A (en) | Portable small current earth-fault line selection closed loop performance tester | |
| CN203658453U (en) | Wireless secondary voltage-drop and load tester provided with wireless synchronous communication function | |
| CN203037759U (en) | Detection apparatus for response waveform of dynamic reactive power compensation device | |
| CN103698623A (en) | Method for measuring the response time of dynamic reactive power compensation device under united time scale | |
| CN105608252B (en) | Simulation method and device for power grid fault simulation test | |
| CN103033700A (en) | Detecting device of responding wave form of dynamic reactive power compensation equipment and detecting method of the same | |
| CN103558471A (en) | Method for measuring response time of straightly-hung type dynamic reactive generating devices with unified time scales | |
| CN105866592B (en) | Dynamic passive compensation response wave shape acquisition system and acquisition method | |
| CN202049225U (en) | Synchronous intelligent calibration device for power generator | |
| CN204856067U (en) | Power is at testing system of loop type digit with mixed real -time simulation of physics | |
| CN105468842A (en) | Simplified double-fed wind power system model and modeling method | |
| CN203037757U (en) | Detection apparatus for response waveform of dynamic var generation device | |
| CN103630763A (en) | Alternating-current power supply three-phase unbalanced drop simulator and simulation method | |
| CN205139340U (en) | Photovoltaic grid -connected inverter MPPT precision and electrical energy conversion efficiency detection device | |
| CN201397378Y (en) | Power system stabilizer test waveform recorder for detecting uncompensated property of excitation system of generator | |
| CN102981078B (en) | Response waveform detecting device and method for dynamic reactive-power generating device | |
| CN203037758U (en) | Response waveform detection apparatus for straightly suspended type dynamic reactive generation device | |
| CN104779613A (en) | Test-based equivalent modeling method for electric element comprising converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140205 |