CN203772983U - Test platform for low-voltage distribution imbalance compensation apparatus - Google Patents
Test platform for low-voltage distribution imbalance compensation apparatus Download PDFInfo
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- CN203772983U CN203772983U CN201420103232.5U CN201420103232U CN203772983U CN 203772983 U CN203772983 U CN 203772983U CN 201420103232 U CN201420103232 U CN 201420103232U CN 203772983 U CN203772983 U CN 203772983U
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 239000004411 aluminium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 235000000396 iron Nutrition 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000011161 development Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000011056 performance test Methods 0.000 abstract 1
- 238000012795 verification Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
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Abstract
A test platform for a low-voltage distribution imbalance compensation apparatus comprises a power supply wire inlet cabinet (1), a power distribution cabinet (2), a low-voltage dynamic compensation apparatus (3), an unbalanced load cabinet (4), an uncontrollable non-linear load cabinet (5) and an electric energy quality test apparatus (6). A 380V distribution network bus is accessed via the power supply wire inlet cabinet and enters the power distribution cabinet for secondary distribution, thereby providing a 380V power source to an uncontrollable non-linear load and the unbalanced load cabinet on one hand and providing a 220V control power source to the low-voltage dynamic compensation apparatus on the other hand. The externally-connected electric energy quality test apparatus tests grid voltage, grid current, load current signals, power factors and harmonic wave current containing quantity and tests current signals of a distribution network compensation apparatus through a test loop. The test platform of the utility model can carry out harmonic wave and imbalance principle verification and a dynamic performance test for a distribution network dynamic compensation apparatus under conditions of balance loads and imbalance loads. Therefore, a basic platform can be provided for design and development of similar apparatuses.
Description
technical field
The utility model relates to a kind of test platform of low-voltage distribution imbalance compensation device, belongs to power matching network controlling of quality equipment technical field.
Background technology
Along with developing rapidly of Chinese national economy, more and more have that power factor is low, non-linear, in the industrial electricity apparatus or civil equipment access power distribution network of the feature such as asymmetry or impact, the safe and stable operation of electrical network has been caused to very large impact, the dynamic electric network electric energy quality of power distribution network is declined day by day.The regulation and control of tradition distribution network electric energy quality are for distribution three-phase imbalance, neutral line current overload, harmonic content is higher, power swing frequently under operating mode failure rate higher, regulating effect is difficult to the phenomenon ensureing, follow the maturation of Power Electronic Technique, increasing power electronic equipment is with APF, SVC, research and development and the application of the power quality controlling device that SVG etc. are representative receive much concern, but it is scarcely out of swaddling-clothes from laboratory to on-the-spot development, harmonic pollution is serious, the governing problem that power factor is on the low side also can not get efficient solution certainly, especially the improvement of distribution three-phase imbalance is also more and more subject to the attention of power supply department, and gordian technique and the performance of power electronic equipment also need to obtain comprehensive test and validation at present, therefore the research of basic experimental test platform is seemed and is even more important.
Summary of the invention
The purpose of this utility model is,, power swing higher to distribution three-phase imbalance, neutral line current overload, harmonic content for the regulation and control of traditional distribution network electric energy quality frequently under operating mode failure rate higher, regulating effect is difficult to the phenomenon ensureing, for low pressure dynamic compensating device provides a kind of harmonic wave, imbalance, the reactive-load compensation test platform of improvement comprehensively.
The technical solution of the utility model is that the test platform of the utility model low-voltage distribution imbalance compensation device is comprised of electric power incoming line cabinet 1, power distribution cabinet 2, low pressure dynamic compensating device 3, unbalance load cabinet 4, nonlinear load cabinet 5 and electric energy quality test device 6.Electric power incoming line cabinet connects the end of incoming cables of power distribution cabinet; Between power distribution cabinet and low pressure dynamic compensating device, be connected respectively primary circuit, secondary control loop and test loop; The output terminal of power distribution cabinet also connects respectively unbalance load cabinet and adjustable nonlinear load cabinet; Electric energy quality test device connect respectively power distribution cabinet input end and, output terminal.
The utility model accesses 380V distribution bus by electric power incoming line cabinet, enter afterwards power distribution cabinet and carry out the secondary distribution of power supply, on the one hand, for uncontrollable nonlinear load and unbalance load provide 380V power supply, for providing 220V, low pressure dynamic compensating device controls power supply on the one hand.Test loop provides line voltage, power network current, load current, low-voltage compensation apparatus electric current, power factor and harmonic current amount for the electric energy quality test device with external.Nonlinear load is comprised of the three-phase uncontrollable rectifier bridge of six pulse waves and the resistive load of DC side, it is the resistance that iron irons aluminium that DC load adopts material, divides 6 grades, and every grade of resistance is 9.36 Ω, by the switching of DC load resistance, change the size of electric current, as harmonic source.Cooling system adopts the high speed shaft flow fan of air-out from lower to upper, and has the function of excess temperature tripping operation.Unbalance load cabinet forms by comprising 9 groups of branch roads that resistance and reactance be connected into, resistance adopts ceramic resistor, every branch impedance is 5 Ω, reactor adopts iron core reactor, every branch road reactance is 10mH, iron core reactor produces idle, and the switch of every branch road is all single-phase, by the connection in series-parallel between each branch road and alternate cross-over connection or the open circuit adjusting degree of unbalancedness of three-phase current and the size of zero-sequence current.
Nonlinear-load cabinet of the present utility model comprises the controllable rectifier bridge of three-phase six pulse waves, connect the DC load of controllable rectifier bridge output terminal and for the high speed shaft flow fan of cooling system.Cooling system adopts the air-out from lower to upper of high speed shaft flow fan, and has the function of excess temperature tripping operation; It is that iron irons aluminium resistance that DC load adopts material, and minutes 6 grades are adjustable, changes the size of electric current by the switching of DC load resistance, as harmonic source, can the adjustable humorous reactive power that involves of generation current size, and for harmonic wave, idle test platform.
Unbalance load cabinet of the present utility model forms by comprising 9 groups of branch roads that resistance and reactance be connected into, resistance adopts ceramic resistor, every branch impedance is 5 Ω, reactor adopts iron core reactor, every branch road reactance is 10mH, and iron core reactor produces idle, and the switch of every branch road is all single-phase, by the connection in series-parallel between each branch road and alternate cross-over connection or open circuit, realize threephase load imbalance, for zero sequence compensation, three-phase current compensation balance use test platform.
The beneficial effects of the utility model are, complete principle checking and dynamic performance testing and the test of low pressure dynamic compensating device by distribution low pressure dynamic compensating device experimental test research platform, for the design and development of such device provides basic platform.
The utility model is applicable to the comprehensive test test platform by distribution dynamic compensating device.
accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Picture in picture number: the 1st, electric power incoming line cabinet; The 2nd, power distribution cabinet; The 3rd, low pressure dynamic compensating device; The 4th, unbalance load cabinet; The 5th, nonlinear load cabinet; The 6th, electric energy quality test device.
Embodiment
Embodiment of the present utility model as shown in Figure 1.
The test platform of a kind of low-voltage distribution imbalance compensation of the present embodiment device is comprised of electric power incoming line cabinet 1, power distribution cabinet 2, low pressure dynamic compensating device 3, unbalance load cabinet 4, adjustable nonlinear load cabinet 5 and electric energy quality test device 6.
The present embodiment accesses 380V distribution bus by electric power incoming line cabinet, enters afterwards the secondary distribution that power distribution cabinet carries out power supply, on the one hand for adjustable nonlinear load provides 380V power supply, controls power supply on the one hand for low pressure dynamic compensating device provides 220V.
External electric energy quality test device is realized line voltage, power network current, load current signal, power factor, harmonic current amount and the test to low-voltage compensation apparatus current signal by test loop.Nonlinear load is comprised of uncontrollable rectifier bridge and the resistive load of DC side, and it is that iron irons aluminium resistance that DC load adopts material, divides 6 grades, and every grade of resistance is 9.36 Ω.Cooling system adopts the high speed shaft flow fan of air-out from lower to upper, and has the function of excess temperature tripping operation.Unbalance load cabinet forms by comprising 9 groups of branch roads that resistance and reactance be connected into, and resistance adopts ceramic resistor, and every branch impedance is 5 Ω, reactor adopts iron core reactor, every branch road reactance is 10mH, and iron core reactor produces idle, and the switch of every branch road is all single-phase.Switching by nonlinear load DC load resistance while carrying out testing experiment produces the adjustable humorous reactive power that involves of harmonic current size; By the connection in series-parallel between each branch road of unbalance load cabinet and alternate cross-over connection or open circuit, regulate the degree of unbalancedness of three-phase current and the size of zero-sequence current, on the test signal interface of power interface screen, access effect and dynamic property that electric energy quality monitor device and transient state registering instrument can be tested low pressure dynamic compensating device.
Claims (3)
1. a low-voltage distribution imbalance compensation device to test platform, it is characterized in that, described test platform is comprised of electric power incoming line cabinet (1), power distribution cabinet (2), low pressure dynamic compensating device (3), unbalance load cabinet (4), adjustable nonlinear load cabinet (5) and electric energy quality test device (6); Electric power incoming line cabinet connects the end of incoming cables of power distribution cabinet; Between power distribution cabinet and low pressure dynamic compensating device, be connected respectively primary circuit, secondary control loop and test loop; The output terminal of power distribution cabinet also connects respectively unbalance load cabinet and adjustable nonlinear load cabinet; Electric energy quality test device connect respectively power distribution cabinet input end and, output terminal.
2. a kind of low-voltage distribution imbalance compensation device to test platform according to claim 1, is characterized in that, described unbalance load cabinet forms by comprising 9 groups of branch roads that resistance and reactance be connected into; The resistance that adopts ceramic resistor, every branch impedance is 5 Ω; The reactor that adopts iron core reactor, every branch road reactance is 10mH.
3. a kind of low-voltage distribution imbalance compensation device to test platform according to claim 1, it is characterized in that, described nonlinear-load cabinet comprises the controllable rectifier bridge of three-phase six pulse waves, connect the DC load of controllable rectifier bridge output terminal and for the high speed shaft flow fan of cooling system; Material is that the DC load that iron irons aluminium resistance is divided into 6 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103232.5U CN203772983U (en) | 2014-03-07 | 2014-03-07 | Test platform for low-voltage distribution imbalance compensation apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103232.5U CN203772983U (en) | 2014-03-07 | 2014-03-07 | Test platform for low-voltage distribution imbalance compensation apparatus |
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| CN203772983U true CN203772983U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420103232.5U Expired - Fee Related CN203772983U (en) | 2014-03-07 | 2014-03-07 | Test platform for low-voltage distribution imbalance compensation apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569702A (en) * | 2015-02-13 | 2015-04-29 | 国家电网公司 | Testing system of unified power quality controller and testing method thereof |
| CN105301520A (en) * | 2015-11-24 | 2016-02-03 | 北京东方计量测试研究所 | Adjustable nonlinear load configuration system |
| CN107677912A (en) * | 2017-11-09 | 2018-02-09 | 云南电网有限责任公司临沧供电局 | A kind of detection device and detection method of low pressure automatic phase selecting load equalizer |
| DE102018208396A1 (en) * | 2018-05-28 | 2019-11-28 | Mahle International Gmbh | Method for operating a charging system with several charging points |
-
2014
- 2014-03-07 CN CN201420103232.5U patent/CN203772983U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569702A (en) * | 2015-02-13 | 2015-04-29 | 国家电网公司 | Testing system of unified power quality controller and testing method thereof |
| CN105301520A (en) * | 2015-11-24 | 2016-02-03 | 北京东方计量测试研究所 | Adjustable nonlinear load configuration system |
| CN105301520B (en) * | 2015-11-24 | 2018-01-16 | 北京东方计量测试研究所 | Adjustable nonlinear load configures system |
| CN107677912A (en) * | 2017-11-09 | 2018-02-09 | 云南电网有限责任公司临沧供电局 | A kind of detection device and detection method of low pressure automatic phase selecting load equalizer |
| CN107677912B (en) * | 2017-11-09 | 2018-12-25 | 云南电网有限责任公司临沧供电局 | A kind of detection device and detection method of low pressure automatic phase selecting load equalizer |
| DE102018208396A1 (en) * | 2018-05-28 | 2019-11-28 | Mahle International Gmbh | Method for operating a charging system with several charging points |
| US11631977B2 (en) | 2018-05-28 | 2023-04-18 | Mahle International Gmbh | Method of operating a charging system with multiple charging points |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20210307 |