CN201945650U - Performance test system for high-capacity reactive power dynamic compensating device - Google Patents
Performance test system for high-capacity reactive power dynamic compensating device Download PDFInfo
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- CN201945650U CN201945650U CN2010206795705U CN201020679570U CN201945650U CN 201945650 U CN201945650 U CN 201945650U CN 2010206795705 U CN2010206795705 U CN 2010206795705U CN 201020679570 U CN201020679570 U CN 201020679570U CN 201945650 U CN201945650 U CN 201945650U
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Abstract
The utility model discloses a performance test system for a high-capacity reactive power dynamic compensating device, which comprises a reactive power dynamic compensating device under test requiring performance test and is characterized in that the performance test system also comprises an electric energy quality analysis meter, a high-voltage switch cabinet, an active load and a reactive load, wherein the active load is externally connected with an electric network through the high-voltage switch cabinet and is connected in parallel with the reactive power dynamic compensating device under test, and the reactive load provides adjustable capacitive or inductive reactive power with the property opposite to the property of the reactive power generated by the rested reactive power dynamic compensating device. The performance test system has the beneficial effects that full-load experiments and performance system tests on the high-capacity reactive power dynamic compensating device by the low-capacity electric network in a factory or a laboratory are realized, so the possible existent quality problem of the device can be easily found, and the primary on-site operation success of the device is ensured.
Description
Technical field
The utility model relates to a kind of system that realization is tested high capacity reactive power dynamic compensation device performance in the low capacity electrical network, belongs to technical field of power systems.
Background technology
At present, in order to improve the quality of power supply and to lower line loss, energy-conservation economize on electricity, high capacity reactive power dynamic compensation dress
Put at the electric system transmission and distribution network and obtain increasing the application.The high capacity reactive power dynamic compensation is adorned at present
Putting the static passive compensation device (SVC-static Var compensator) that mainly contains based on thyristor valve reaches
Advanced static reacance generator (ASVG-Advanced Static Var Generator) based on power transistor
Also the someone is referred to as static phase modifier (STATCOM-Static Condenser), and their common characteristic are
The reactive power capacity that can produce is big, generally at several Mvar to tens Mvar even to Mvar up to a hundred.
Therefore, make with research department will be in factory or laboratory to the high capacity reactive power dynamic compensation device
Carrying out full-load test and performance test thereof will have serious consequences to consumer networks, if factory or laboratory
Net capacity less (for example hundreds of KVA) carries out the full load examination to the high capacity reactive power dynamic compensation device
Test and the test of performance system will be difficult to carry out.For example at State Standard of the People's Republic of China " GB/T
The examination of thyristor valve of the Power Electronic Technique static passive compensation device of 20995-2007 electrical power trans mission/distribution systems
Test " only stipulate the critical component thyristor valve in the static passive compensation device is carried out delivery test, and complete machine
Test can only adopt field testing procedure (to see State Standard of the People's Republic of China " GB/T 20297-2006
Static passive compensation device (SVC) site test ").Manufacturing plant that power supply capacity is less or laboratory because
When dispatching from the factory, can't carry out full-load test and its performance is carried out to the high capacity reactive power dynamic compensation device
The test of system, thus be difficult to the quality problems of finding that device may exist, also be difficult to make device at the scene once
Put into operation successfully.
Summary of the invention
For solving above technical deficiency, the utility model provides a kind of can carry out the high capacity reactive power dynamic compensation device Performance Test System that the high capacity reactive power dynamic compensation device carries out full-load test and performance is tested at existing less manufacturing plant or the laboratory of power supply capacity.
A kind of high capacity reactive power dynamic compensation device Performance Test System that the utility model proposes, the tested reactive power dynamic compensation device that comprises performance to be measured also comprises power quality analyzer, high-tension switch cabinet and the active load that is in parallel by the high-tension switch cabinet outside electric power network and with tested reactive power dynamic compensation device and provides and the incompatible adjustable capacitive of reactive power that tested reactive power dynamic compensation device produces or the reactive load of lagging reactive power;
Be provided with the voltage transformer pt summation current transformer CT1 of outside electric power network in the described high-tension switch cabinet, described tested reactive power dynamic compensation device string has current transformer CT2, the voltage signal input end of described power quality analyzer connects voltage transformer pt secondary side output terminal, and the current signal input end of described power quality analyzer connects the secondary side output terminal of current transformer CT1 or current transformer CT2 by change-over switch K;
For the ease of experimental implementation, above-mentioned reactive load preferentially adopts another and the identical reactive power dynamic compensation device of tested reactive power dynamic compensation device performance.
In when test, the reactive power numerical value of above-mentioned tested reactive power dynamic compensation device and reactive load close and with the general power of active load capacity less than outside electric power network.
Be provided with overcurrent protection in the above-mentioned high-tension switch cabinet; be used for the setting valve that the control circuit total current is no more than overcurrent protection; guarantee when breaking down or maloperation takes place; isolating switch in the high-tension switch cabinet will trip rapidly; cut off being connected of tested reactive power dynamic compensation device and load and electrical network, avoid the impact of super-high-current electrical network.
The beneficial effects of the utility model are: avoided making with research department factory or laboratory the high capacity reactive power dynamic compensation device carried out full-load test and performance test thereof will bring consumer networks tight after
Really, realized the high capacity reactive power dynamic compensation being adorned at the less electrical network of capacity (for example hundreds of KVA)
Put the test of carrying out full-load test and performance system thereof, thereby than the matter that is easier to find that device may exist
The amount problem has guaranteed device once putting into operation successfully at the scene.
Description of drawings
Fig. 1 is a circuit connection diagram of the present utility model.
Among the figure: 1 high-tension switch cabinet, 2 tested reactive power dynamic compensation devices, 3 reactive loads, 4 active loads, 5 power quality analyzers, 6 overcurrent protections.
Embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, high capacity reactive power dynamic compensation device Performance Test System of the present utility model, can realize that this test macro comprises to full-load test of high capacity reactive power dynamic compensation device and performance test at the low capacity electrical network:
The high-tension switch cabinet 1 of belt fuser DL1, voltage transformer pt summation current transformer CT1 inserts electrical network outward; The tested reactive power dynamic compensation device 2 of the high capacity of performance to be measured, its series connection isolating switch DL2 summation current transformer CT2; By high-tension switch cabinet 1 outside electric power network and with tested reactive power dynamic compensation device 2 mutually and the low capacity active load 4 that connects and providing and the incompatible adjustable capacitive of reactive power that tested reactive power dynamic compensation device 2 produces or the reactive load 3 of lagging reactive power.Reactive load 3 can preferentially adopt another high capacity reactive power dynamic compensation device that has identical performance with tested high capacity reactive power dynamic compensation device 2.
Specifically, high-tension switch cabinet 1 input end links to each other with 6/10KV low capacity electrical network, and high-tension switch cabinet 1 its output terminal links to each other with the high capacity reactive power dynamic compensation device input end of performance to be measured through isolating switch DL2, current transformer CT2 respectively; Link to each other with reactive load 3 input ends that can produce adjustable capacitive or lagging reactive power through isolating switch DL3, current transformer CT3; Link to each other with active load 4 input ends of the low capacity of fixing through isolating switch DL4.
Its principle of work is:
The principle of complementarity that adopts during according to test, make reactive load 3 produce the idle incompatibility of idle character and 2 generations of tested reactive power dynamic compensation device, and the two size is approaching, should progressively regulate when tested reactive power dynamic compensation device 2 changes with reactive load 3 its reactive power numerical value, make general power that tested reactive power dynamic compensation device 2 and reactive load 3 and active load 4 produce all the time less than the capacity of electrical network.
Its high-tension switch cabinet 1 of controlling tested reactive power dynamic compensation device 2 and load is provided with reliable overcurrent protection 6; the overcurrent protection setting valve should be chosen according to the capacity of electrical network; to guarantee when breaking down or maloperation takes place; when in case the total current by tested reactive power dynamic compensation device 2 and load surpasses the setting valve of overcurrent protection 6; isolating switch in the high-tension switch cabinet 1 will trip rapidly; cut off being connected of tested reactive power dynamic compensation device 2 and load and electrical network, avoid the impact of super-high-current electrical network.Current transformer CT2 summation current transformer CT3 can measure the electric current on tested reactive power dynamic compensation device branch road and the reactive load branch road.
Below be the test macro implementation step that the utility model proposes in the performance test of low capacity electrical network realization high capacity reactive power dynamic compensation device:
Allow power quality analyzer 5 current signals provide by current transformer CT2, allow the high capacity reactive power dynamic compensation device and the reactive load 3 of performance to be measured all place the given command status of exporting near zero current (zero reactive power), successively close isolating switch DL1, DL2, DL3, DL4 puts system into operation.
Allow reactive load 3 export lagging reactive powers earlier by manual or automatic given way, its big I is from increasing to for example 100Kvar near zero reactive power, also allow the high capacity reactive power dynamic compensation device of performance to be measured export capacitive reactive power subsequently by manual or automatic given way, its big I is from for example increasing to-150Kvar near zero reactive power, this set-point can by power quality analyzer 5 read the applied power S of high capacity reactive power dynamic compensation device correspondence of performance to be measured, active power P, reactive power Q and active current, reactive current, total current, parameters such as total harmonic current aberration rate THDi.
Progressively increase the high capacity reactive power dynamic compensation device output capacitive reactive power of reactive load 3 output lagging reactive powers and performance to be measured by 100Kvar grade (looking net capacity can increase or reduce), each set-point all can by power quality analyzer 5 read the applied power S of high capacity reactive power dynamic compensation device correspondence of performance to be measured, active power P, reactive power Q and active current, reactive current, total current, parameters such as the harmonic wave resultant distortion rate THDi of electric current are exported capacitive reactive power until the high capacity reactive power dynamic compensation device of performance to be measured and are reached ratings.
Repeat above test, but allow reactive load 3 export capacitive reactive powers earlier by manual or automatic given way, its big I is from for example increasing to-100Kvar near zero reactive power, also allow the high capacity reactive power dynamic compensation device of performance to be measured export lagging reactive power subsequently by manual or automatic given way, its big I is from for example increasing to+150Kvar near zero reactive power, this set-point can by power quality analyzer 5 read the applied power S of high capacity reactive power dynamic compensation device correspondence of performance to be measured, active power P, reactive power Q and active current, reactive current, total current, parameters such as the harmonic wave resultant distortion rate THDi of electric current.More than test can reach ratings to the high capacity reactive power dynamic compensation device output lagging reactive power of performance to be measured.
When above test because of adopting complementation progressively to regulate principle, load produces the idle incompatibility of idle character and 2 generations of tested reactive power dynamic compensation device, and the two size is approaching, thereby the total reactive power that guarantees tested reactive power dynamic compensation device 2 and load generation has realized in the full power test of low capacity electrical network to high capacity reactive power dynamic compensation device performance all the time less than the capacity of electrical network.
For the high capacity reactive power dynamic compensation device to performance to be measured is tested the performance of electric system transmission and distribution network power factor dynamic adjustments, allow power quality analyzer 5 its current signals be provided by current transformer CT1, at this moment power quality analyzer 5 will detect the power factor value by the total current of tested high capacity reactive power dynamic compensation device and load.Allow the high capacity reactive power dynamic compensation device target power factor of performance to be measured adjust before the test earlier a certain value (for example 0.95), close isolating switch DL4 then, active load 4 is put into operation earlier, close isolating switch DL3 and allow the idle value of a certain perception of reactive load 3 output that (for example+150Kvar), closing isolating switch DL2 again allows the high capacity reactive power dynamic compensation device of the performance to be measured back of putting into operation export a certain size capacitive reactive power automatically because of value according to the target power of setting in advance under the control of controller.Can determine that by the reading of power quality analyzer 5 target power of actual power factor value and setting is because of the error between the value.Change the high capacity reactive power dynamic compensation device reactive-load compensation curve that reactive load 3 idle value sizes of output and character can obtain performance to be measured.
The foregoing description is described to be in order to specify this patent; though describe by specific term in the literary composition; but can not limit the protection domain of this patent with this; being familiar with the personage of this technical field can be after the spirit of understanding this patent and principle change or revises it and reach equivalent purpose; and this equivalence change and modification all should be covered by the claim scope and define in the category.
Claims (4)
1. high capacity reactive power dynamic compensation device Performance Test System, comprise the tested reactive power dynamic compensation device of performance to be measured, it is characterized in that: also comprise power quality analyzer, high-tension switch cabinet and the active load that is in parallel by the high-tension switch cabinet outside electric power network and with tested reactive power dynamic compensation device and provide and the incompatible adjustable capacitive of reactive power that tested reactive power dynamic compensation device produces or the reactive load of lagging reactive power; Be provided with the voltage transformer pt summation current transformer CT1 of outside electric power network in the described high-tension switch cabinet, described tested reactive power dynamic compensation device string has current transformer CT2, the voltage signal input end of described power quality analyzer connects voltage transformer pt secondary side output terminal, and the current signal input end of described power quality analyzer connects the secondary side output terminal of current transformer CT1 or current transformer CT2 by change-over switch K.
2. according to the described high capacity reactive power dynamic compensation device of claim 1 Performance Test System, it is characterized in that: reactive load adopts and the identical device of tested reactive power dynamic compensation device performance.
3. according to the described high capacity reactive power dynamic compensation device of claim 1 Performance Test System, it is characterized in that: in when test, the reactive power numerical value of described tested reactive power dynamic compensation device and reactive load close and with the general power of active load capacity less than outside electric power network.
4. according to the described high capacity reactive power dynamic compensation device of claim 1 Performance Test System, it is characterized in that: be provided with overcurrent protection in the described high-tension switch cabinet, be used for the setting valve that the control circuit total current is no more than overcurrent protection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206795705U CN201945650U (en) | 2010-12-25 | 2010-12-25 | Performance test system for high-capacity reactive power dynamic compensating device |
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| CN2010206795705U CN201945650U (en) | 2010-12-25 | 2010-12-25 | Performance test system for high-capacity reactive power dynamic compensating device |
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| CN201945650U true CN201945650U (en) | 2011-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558472A (en) * | 2013-11-07 | 2014-02-05 | 国家电网公司 | Method for detecting coordinated operation performance of dynamic reactive power compensation devices in same wind power plant |
| CN107576862A (en) * | 2016-07-04 | 2018-01-12 | Ls 产电株式会社 | Monitor the devices and methods therefor of reactive power compensation system |
-
2010
- 2010-12-25 CN CN2010206795705U patent/CN201945650U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558472A (en) * | 2013-11-07 | 2014-02-05 | 国家电网公司 | Method for detecting coordinated operation performance of dynamic reactive power compensation devices in same wind power plant |
| CN107576862A (en) * | 2016-07-04 | 2018-01-12 | Ls 产电株式会社 | Monitor the devices and methods therefor of reactive power compensation system |
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Granted publication date: 20110824 Termination date: 20131225 |