CN202282617U - Large-capacity real-time reactive compensation detection device based on high-voltage SVG (scalable vector graphics) - Google Patents
Large-capacity real-time reactive compensation detection device based on high-voltage SVG (scalable vector graphics) Download PDFInfo
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- CN202282617U CN202282617U CN2011204314599U CN201120431459U CN202282617U CN 202282617 U CN202282617 U CN 202282617U CN 2011204314599 U CN2011204314599 U CN 2011204314599U CN 201120431459 U CN201120431459 U CN 201120431459U CN 202282617 U CN202282617 U CN 202282617U
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Abstract
The utility model discloses a large-capacity real-time reactive compensation detection device based on high-voltage SVG (scalable vector graphics) in the field of power equipment. The device comprises a current transformer, a voltage transformer, two dynamic reactive compensation devices and a three-phase electric energy quality analysis meter, wherein the current transformer and the voltage transformer are respectively arranged on a total incoming line; the two dynamic reactive compensation devices are connected in parallel; and the three-phase electric energy quality analysis meter is connected with the current transformer and the voltage transformer. Under the condition that the switch capacity of the total incoming line is extremely small, the device disclosed by the utility model can be used for realizing reactive compensation and tests for function properties of a harmonic management device, such as large capacity, continuous regulation function and negative sequence compensation.
Description
Technical field
The utility model relates to a kind of field of electrical equipment, specifically be a kind of be the real-time reactive power compensation checkout gear of 12Mvar based on 3-35kV SVG (static reacance generator), capacity.
Background technology
At present, SVG (dynamic reactive compensation device) constantly occurs in the novel electric power system power distribution network, can send continuously on its function or absorbing reactive power, and part SVG can also send harmonic current or filtering harmonic electric current.Traditional reactive power compensator FC branch road adopts automatic switching shunt capacitor or series connection or filter reactor to offset the reactive power of high pressure SVG device; Dynamic adjustments function, filter function and the output capacity that can't verify high pressure SVG device can change function continuously; Also can't verify high pressure SVG full capacity serviceability; Test function is not sufficiently complete, and the dynamic compensating device product that causes not testing through strictness flow into market, has caused potential safety hazard to the user.Because survey at the total input-wire of electric power system user side, power supply capacity has strict restriction, and power supply department has relevant requirement to the quality of power supply of user side, and the electricity consumption of user side should not have influence on the upper level supply network.
The utility model content
The above-mentioned deficiency that the utility model exists to prior art; Provide a kind of big capacity real-time reactive power compensation checkout gear based on high pressure SVG; Under the very little condition of total input-wire contact capacity, realize the big capacity of dynamic passive compensation and harmonic treating apparatus, big electric current, functional performance tests such as regulatory function, negative sequence compensation continuously.
The utility model is realized through following technical scheme; The utility model comprises: be arranged at two dynamic reactive compensation devices that current transformer on the total input-wire, voltage transformer and parallel connection are provided with respectively, and the three-phase electric energy mass-synchrometer that links to each other with voltage transformer with current transformer.
Described first dynamic reactive compensation device is identical with the capacity of second dynamic reactive compensation device.
First dynamic reactive compensation device is set to permanent idle state, and second dynamic reactive compensation device is set to the Steam Generator in Load Follow state; First dynamic reactive compensation device is provided with output predetermined number of times harmonic wave, and second dynamic reactive compensation device is provided with tracking mode.
Be equipped with the reactor and the switch cubicle of connecting between the startup cabinet end of incoming cables of described first dynamic reactive compensation device and second dynamic reactive compensation device and the total input-wire.
The tripping operation outlet of the switch cubicle of described first dynamic reactive compensation device and second dynamic reactive compensation device is parallel with one another.
Described current transformer links to each other with the control cubicle current acquisition end of two dynamic reactive compensation devices respectively.
Described voltage transformer links to each other with the control cubicle voltage acquisition end of two dynamic reactive compensation devices respectively.
The chain link current sample end of described dynamic reactive compensation device is provided with oscilloscope.
Described dynamic reactive compensation device full capacity is 12Mvar.
Described total input-wire is provided with the master switch cabinet.
The utility model is applicable to the power distribution network of 3kV, 6kV, 10kV and 35kV electric pressure.
The utility model can realize that not only dynamic adjustments function, filter function and the output capacity of tested SVG change the Validity Test of function continuously; Can also be under the restricted condition of power supply capacity; Realize full capacity test, temperature rise test and the load-following capacity test of big capacity SVG dynamic reactive compensation device, make test have more integrality, accuracy.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
Embodiment in the face of the utility model elaborates down; Present embodiment is being to implement under the prerequisite with the utility model technical scheme; Provided detailed execution mode and concrete operating process, but the protection range of the utility model is not limited to following embodiment.
Embodiment 1
As shown in Figure 1; Present embodiment comprises each other: be connected in parallel on first dynamic reactive compensation device 1 and second dynamic reactive compensation device 2 on the same total input-wire; Be connected with current transformer CT and voltage transformer pt on the total input-wire, be connected with three-phase electric energy mass-synchrometer PQ between current transformer CT and the voltage transformer pt.
Identical and the full capacity of the capacity of described first dynamic reactive compensation device 1 and second dynamic reactive compensation device 2 is 12Mvar.
First dynamic reactive compensation device 1 is set to permanent idle state, and second dynamic reactive compensation device 2 is set to the Steam Generator in Load Follow state; First dynamic reactive compensation device 1 is provided with output predetermined number of times harmonic wave, and second dynamic reactive compensation device 2 is provided with tracking mode.
Be provided with reactor L and switch cubicle QF1 or the QF2 that connects between the startup cabinet end of incoming cables of described first dynamic reactive compensation device 1 and second dynamic reactive compensation device 2 and the total input-wire.
The tripping operation outlet parallel connection of described first switch cubicle QF1 and second switch cabinet QF2.
Described current transformer CT links to each other with the control cubicle current acquisition of two first dynamic reactive compensation devices 1 with second dynamic reactive compensation device 2 respectively.
Described voltage transformer pt links to each other with the control cubicle voltage acquisition of two first dynamic reactive compensation devices 1 with second dynamic reactive compensation device 2 respectively.
The chain link current sample end of described first dynamic reactive compensation device 1 and second dynamic reactive compensation device 2 is provided with oscilloscope SBQ.
Described total input-wire is provided with master switch cabinet QF.
Present embodiment carries out idle continuous output, Steam Generator in Load Follow test; Earlier first dynamic reactive compensation device 1 and second dynamic reactive compensation device 2 are carried out parameter setting; First dynamic reactive compensation device 1 is set in the open loop running status, and second dynamic reactive compensation device 2 is set in Steam Generator in Load Follow compensation running status.After system once, secondary connection accomplishes, the master switch cabinet QF sent electricity earlier, and second switch cabinet QF2 closes a floodgate, and second dynamic reactive compensation device 2 puts into operation earlier.Then the first switch cubicle QF1 with first dynamic reactive compensation device 1 closes a floodgate, and first dynamic reactive compensation device 1 puts into operation.The idle output of manual adjustments different capabilities on first dynamic reactive compensation device, 1 control interface; Second dynamic reactive compensation device 2 detects the total input-wire reactive power and changes; Fast automatic tracking compensation send or absorb idle, with the Current Control of the idle summation current transformer CT of total input-wire to minimum.Continue to strengthen the perception or the capacitive reactive power output of first dynamic reactive compensation device 1; Till first dynamic reactive compensation device, 1 full capacity 12Mvar; After operation a period of time; Through the data of system side three-phase electric energy mass-synchrometer PQ surveying record are monitored, analyze the first and second the first dynamic reactive compensation devices 1 and second dynamic reactive compensation device, 2 reactive power fan-out capability correlation functions, performance data with oscilloscope SBQ.After the end, the output state setting of first dynamic reactive compensation device 1 and second dynamic reactive compensation device 2 is exchanged, and repeats above-mentioned experimentation.
Present embodiment carries out the harmonic current output test; Line is identical with embodiment 1; Earlier the first and second the first dynamic reactive compensation devices 1 and second dynamic reactive compensation device 2 are carried out parameter setting; First dynamic reactive compensation device 1 is set in harmonic current open loop output running status, and second dynamic reactive compensation device 2 is set in the automatic filter running status.QF send electricity earlier to the master switch cabinet, and second switch cabinet QF2 closes a floodgate, and second dynamic reactive compensation device 2 puts into operation earlier.Then the first switch cubicle QF is closed a floodgate, first dynamic reactive compensation device 1 puts into operation.The rated value output of the different harmonic currents of manual adjustments on first dynamic reactive compensation device, 1 control interface; After second dynamic reactive compensation device 2 detects the variation of current transformer CT electric current; The particular harmonic electric current is sent in the fast automatic tracking compensation; The harmonic current of current transformer CT is restricted to minimum, very little with the harmonic current that guarantees the system that flow into.Through the data of system side three-phase electric energy mass-synchrometer PQ surveying record are monitored; Analyze the first and second the first dynamic reactive compensation devices 1 and the output of second dynamic reactive compensation device, 2 harmonic currents with oscilloscope SBQ, and analyze correlation function, performance data.After the end, the output state setting of first dynamic reactive compensation device 1 and second dynamic reactive compensation device 2 is exchanged, and repeats above-mentioned experimentation.
Embodiment 3
Present embodiment carries out reactive power compensation compensation harmonic managemental experiment, and line is identical with embodiment 1.Earlier the first and second the first dynamic reactive compensation devices 1 and second dynamic reactive compensation device 2 are carried out parameter setting; First dynamic reactive compensation device 1 is set in load compensation and active power filtering running status, and second dynamic reactive compensation device 2 is set in open loop output running status.QF send electricity earlier to the master switch cabinet, and the first switch cubicle QF1 closes a floodgate, and first dynamic reactive compensation device 1 puts into operation earlier, and then second switch cabinet QF2 closes a floodgate, and second dynamic reactive compensation device 2 is put into operation.The manually reactive power of output different capabilities or harmonic current output on second dynamic reactive compensation device, 2 control interfaces; After first dynamic reactive compensation device 1 detects current transformer CT electric current and changes, send specific idle or harmonic current automatically and follow the tracks of compensation.Through the data of system side three-phase electric energy mass-synchrometer PQ surveying record are monitored, obtain the first and second the first dynamic reactive compensation devices 1 and second dynamic reactive compensation device, 2 dynamic passive compensations compensate correlation function, performance datas such as corresponding time, compensation control effect, filter capacity with oscilloscope SBQ.After the end, the output state setting of first dynamic reactive compensation device 1 and second dynamic reactive compensation device 2 is exchanged, and repeats above-mentioned experimentation.
Embodiment 4
Present embodiment carries out the negative sequence compensation ability test.Line is identical with embodiment 1; Earlier the first and second the first dynamic reactive compensation devices 1 and second dynamic reactive compensation device 2 are carried out parameter setting; First dynamic reactive compensation device 1 is set in the negative sequence compensation running status, and second dynamic reactive compensation device 2 is set in open loop output running status.QF send electricity earlier to the master switch cabinet, and the first switch cubicle QF1 closes a floodgate, and first dynamic reactive compensation device 1 puts into operation earlier, and then second switch cabinet QF2 closes a floodgate, and second dynamic reactive compensation device 2 is closed a floodgate put into operation.On second dynamic reactive compensation device, 2 control interfaces, manually export different big or small negative-sequence currents, first dynamic reactive compensation device 1 sends specific negative-sequence current automatically and follows the tracks of compensation after detecting the variation of current transformer CT electric current.Through the data of system side three-phase electric energy mass-synchrometer PQ surveying record are carried out monitoring analysis, obtain correlation function, performance datas such as first dynamic reactive compensation device, 1 negative sequence compensation ability.After the end, the output state setting of first dynamic reactive compensation device 1 and second dynamic reactive compensation device 2 is exchanged, and repeats above-mentioned experimentation.
Claims (7)
1. real-time reactive power compensation checkout gear of the big capacity based on high pressure SVG; It is characterized in that; Comprise: be arranged at two dynamic reactive compensation devices that current transformer on the total input-wire, voltage transformer and parallel connection are provided with respectively, and the three-phase electric energy mass-synchrometer that links to each other with voltage transformer with current transformer.
2. the real-time reactive power compensation checkout gear of big capacity according to claim 1; It is characterized in that; The tripping operation outlet of the switch cubicle of described first dynamic reactive compensation device and second dynamic reactive compensation device is parallel with one another and first dynamic reactive compensation device is set to permanent idle state, second dynamic reactive compensation device is set to the Steam Generator in Load Follow state; Corresponding first dynamic reactive compensation device is provided with output predetermined number of times harmonic wave, and second dynamic reactive compensation device is provided with tracking mode.
3. the real-time reactive power compensation checkout gear of big capacity according to claim 1 and 2 is characterized in that, the identical and full capacity of the capacity of described first dynamic reactive compensation device and second dynamic reactive compensation device is 12Mvar.
4. the real-time reactive power compensation checkout gear of big capacity according to claim 1 and 2; It is characterized in that, be equipped with the reactor and the switch cubicle of connecting between the startup cabinet end of incoming cables of described first dynamic reactive compensation device and second dynamic reactive compensation device and the total input-wire.
5. the real-time reactive power compensation checkout gear of big capacity according to claim 1 is characterized in that, described current transformer links to each other with the control cubicle current acquisition end of two dynamic reactive compensation devices respectively; Described voltage transformer links to each other with the control cubicle voltage acquisition end of two dynamic reactive compensation devices respectively.
6. the real-time reactive power compensation checkout gear of big capacity according to claim 1 is characterized in that, the chain link current sample end of described dynamic reactive compensation device is provided with oscilloscope.
7. the real-time reactive power compensation checkout gear of big capacity according to claim 1 is characterized in that described total input-wire is provided with the master switch cabinet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204314599U CN202282617U (en) | 2011-11-03 | 2011-11-03 | Large-capacity real-time reactive compensation detection device based on high-voltage SVG (scalable vector graphics) |
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| CN2011204314599U CN202282617U (en) | 2011-11-03 | 2011-11-03 | Large-capacity real-time reactive compensation detection device based on high-voltage SVG (scalable vector graphics) |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102981078A (en) * | 2012-11-29 | 2013-03-20 | 山西省电力公司电力科学研究院 | Response waveform detecting device and method for dynamic reactive-power generating device |
| CN108226587A (en) * | 2018-03-19 | 2018-06-29 | 中煤科工集团重庆研究院有限公司 | Mining high-low voltage reactive power and harmonic compensation device based on cancellation method |
| CN108418224A (en) * | 2018-03-19 | 2018-08-17 | 中煤科工集团重庆研究院有限公司 | Mining high-low voltage reactive power and harmonic compensation device based on cancellation method |
| CN110658370A (en) * | 2019-10-12 | 2020-01-07 | 南京浦马电力电子有限公司 | High-voltage large-capacity SVG test power supply |
| CN110716112A (en) * | 2019-11-15 | 2020-01-21 | 国电南京自动化股份有限公司 | Insulation detection method for high-voltage cascaded SVG (static var generator) insulation frame |
-
2011
- 2011-11-03 CN CN2011204314599U patent/CN202282617U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102981078A (en) * | 2012-11-29 | 2013-03-20 | 山西省电力公司电力科学研究院 | Response waveform detecting device and method for dynamic reactive-power generating device |
| CN102981079B (en) * | 2012-11-29 | 2014-12-03 | 山西省电力公司电力科学研究院 | Response waveform detection method for straightly hanging type reactive power generation device |
| CN102981078B (en) * | 2012-11-29 | 2015-04-22 | 山西省电力公司电力科学研究院 | Response waveform detecting device and method for dynamic reactive-power generating device |
| CN108226587A (en) * | 2018-03-19 | 2018-06-29 | 中煤科工集团重庆研究院有限公司 | Mining high-low voltage reactive power and harmonic compensation device based on cancellation method |
| CN108418224A (en) * | 2018-03-19 | 2018-08-17 | 中煤科工集团重庆研究院有限公司 | Mining high-low voltage reactive power and harmonic compensation device based on cancellation method |
| CN108226587B (en) * | 2018-03-19 | 2020-10-27 | 中煤科工集团重庆研究院有限公司 | Mining high-low voltage reactive power and harmonic compensation device based on cancellation method |
| CN108418224B (en) * | 2018-03-19 | 2021-08-17 | 中煤科工集团重庆研究院有限公司 | Mining high-low voltage reactive power and harmonic compensation device based on cancellation method |
| CN110658370A (en) * | 2019-10-12 | 2020-01-07 | 南京浦马电力电子有限公司 | High-voltage large-capacity SVG test power supply |
| CN110716112A (en) * | 2019-11-15 | 2020-01-21 | 国电南京自动化股份有限公司 | Insulation detection method for high-voltage cascaded SVG (static var generator) insulation frame |
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