CN204068281U - Phase three-wire three unbalanced load analogue means - Google Patents
Phase three-wire three unbalanced load analogue means Download PDFInfo
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- CN204068281U CN204068281U CN201420443419.XU CN201420443419U CN204068281U CN 204068281 U CN204068281 U CN 204068281U CN 201420443419 U CN201420443419 U CN 201420443419U CN 204068281 U CN204068281 U CN 204068281U
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- compensation capacitor
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- 239000003990 capacitor Substances 0.000 claims abstract description 29
- 238000004088 simulation Methods 0.000 abstract description 6
- 238000012827 research and development Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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Abstract
The utility model discloses a kind of phase three-wire three unbalanced load analogue means, relate in network and adjust, eliminate or the device technique field of compensating power.Comprise a low-voltage compensation capacitor and a low-voltage active compensation arrangement, described low-voltage compensation capacitor is connected in parallel in three phase lines by the fling-cut switch of individual-phase control, and described low-voltage active compensation arrangement is connected in parallel in three phase lines of low-voltage compensation capacitor rear end by circuit breaker.Described device is by regulating the output of active power compensator and the conducting situation of each phase of low-voltage compensation capacitor, can the situation of three-phase imbalance load in accurate simulation actual electric network, for a large amount of time is saved in research and development of products and production, improve the efficiency of producing and researching and developing.
Description
Technical field
The utility model relates in network and adjusts, eliminates or the device technique field of compensating power, particularly relates to a kind of phase three-wire three unbalanced load analogue means.
Background technology
Common three-phase imbalance load causes reason to mainly contain the Capacity of Spot Welder Group etc. of the ac arc furnace of metallurgy industry, electric railway and auto industry, and these asymmetric interference loads cause serious three-phase imbalance power quality problem.At present, the compensation of electric power system uncompensated load mainly contains following two kinds of modes: one utilizes thyristor-controlled reactor+fixed capacitor (TCR+FC), another kind is thyristor-controlled reactor+thyristor switchable capacitor (TCR+TSC), also has one to be New Active compensation arrangement (SVG).
Along with reaching its maturity of these compensation arrangement technology and market, the performance of these compensation equipments and job stability how is checked to be the problems that research staff and manufacturer should think deeply.Mode general is at present that employing one component mends electric capacity or reactance, conducting and the shutoff of each phase is controlled by fling-cut switch, three-phase load unbalance situation in simulating grid, but the uneven situation of this method simulation is more fixing, can not real reaction network load situation about uninterruptedly changing.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of phase three-wire three unbalanced load analogue means, described device is by regulating the output of active power compensator and the conducting situation of each phase of low-voltage compensation capacitor, can the situation of three-phase imbalance load in accurate simulation actual electric network, for a large amount of time is saved in research and development of products and production, improve the efficiency of producing and researching and developing.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of phase three-wire three unbalanced load analogue means, it is characterized in that: comprise a low-voltage compensation capacitor and a low-voltage active compensation arrangement, described low-voltage compensation capacitor is connected in parallel in three phase lines by the fling-cut switch of individual-phase control, and described low-voltage active compensation arrangement is connected in parallel in three phase lines of low-voltage compensation capacitor rear end by circuit breaker.
Further preferred technical scheme is: described low-voltage compensation capacitor is connected in parallel in three phase lines by the fling-cut switch of individual-phase control and fuse successively.
Preferred technical scheme is further: the building-out capacitor being provided with more than a group in described low-voltage compensation capacitor.
Preferred technical scheme is further: described low-voltage active compensation arrangement is capacitive and perceptual low-voltage active compensation arrangement, and the capacity of described low-voltage active compensation arrangement is greater than the capacity of low-voltage compensation capacitor.
The beneficial effect adopting technique scheme to produce is: the utility model is built conveniently, by regulating the output of active power compensator and the conducting situation of each phase of low-voltage compensation capacitor, can the situation of three-phase imbalance load in accurate simulation actual electric network, for a large amount of time is saved in research and development of products and production, improve the efficiency of producing and researching and developing.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is theory diagram of the present utility model;
Wherein: 1, low-voltage compensation capacitor 2, fling-cut switch 3, low-voltage active compensation arrangement 4, circuit breaker 5, fuse.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Set forth a lot of detail in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
As shown in Figure 1, the utility model discloses a kind of phase three-wire three unbalanced load analogue means, one group of low-voltage compensation capacitor 1 is parallel on electrical network through the fling-cut switch 3 of an individual-phase control and fuse 5 successively, fling-cut switch 3 selects the object of individual-phase control to be make A, B, C three-phase can realize independent control.Then, a low-voltage active compensation arrangement 2 is parallel to the rear end of low-voltage compensation capacitor 1 electrical network by circuit breaker 4, low-voltage active compensation arrangement 2 capacity is greater than low-voltage compensation capacitor 1 capacity.Low-voltage compensation capacitor 1 can send capacitive reactive power and compensate, and low-voltage active compensation arrangement 2 both can have been sent out capacitive reactive power and compensate or inductive reactive power compensation.During test, according to specifically testing needs, conducting and the shutoff of each phase can be controlled by controlling fling-cut switch, allowing low-voltage compensation capacitor send a relatively-stationary three-phase imbalance reactive power compensation.
Regulate low-voltage active compensation arrangement to export, low-voltage active compensation arrangement can send an idle amount uninterruptedly changed, and both can send out capacitive reactive power compensation, can send out inductive reactive power compensation again.By by two equipment reactive power superpositions, both can obtain capacitive unbalance, also can obtain perceptual disequilibrium, the simultaneous uneven situation of capacitive perception can also be obtained.Like this, the object of three-phase imbalance load in simulation actual electric network is just reached.
The utility model is built conveniently, by regulating the output of active power compensator and the conducting situation of each phase of low-voltage compensation capacitor, can the situation of three-phase imbalance load in accurate simulation actual electric network, for research and development of products and produce and save a large amount of time, improve and produce and the efficiency of research and development.
Claims (4)
1. a phase three-wire three unbalanced load analogue means, it is characterized in that: comprise a low-voltage compensation capacitor (1) and a low-voltage active compensation arrangement (3), described low-voltage compensation capacitor (1) is connected in parallel in three phase lines by the fling-cut switch (2) of individual-phase control, and described low-voltage active compensation arrangement (3) is connected in parallel in three phase lines of low-voltage compensation capacitor (1) rear end by circuit breaker (4).
2. phase three-wire three unbalanced load analogue means according to claim 1, is characterized in that: described low-voltage compensation capacitor (1) is connected in parallel in three phase lines by the fling-cut switch (2) of individual-phase control and fuse (5) successively.
3. phase three-wire three unbalanced load analogue means according to claim 1, is characterized in that: the building-out capacitor being provided with more than a group in described low-voltage compensation capacitor (1).
4. phase three-wire three unbalanced load analogue means according to claim 1, it is characterized in that: described low-voltage active compensation arrangement (3) is capacitive and perceptual low-voltage active compensation arrangement, and the capacity of described low-voltage active compensation arrangement (3) is greater than the capacity of low-voltage compensation capacitor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420443419.XU CN204068281U (en) | 2014-08-07 | 2014-08-07 | Phase three-wire three unbalanced load analogue means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420443419.XU CN204068281U (en) | 2014-08-07 | 2014-08-07 | Phase three-wire three unbalanced load analogue means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204068281U true CN204068281U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420443419.XU Expired - Lifetime CN204068281U (en) | 2014-08-07 | 2014-08-07 | Phase three-wire three unbalanced load analogue means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204068281U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487485A (en) * | 2019-12-31 | 2020-08-04 | 杭州银湖电气设备有限公司 | Three-phase unbalanced load simulation test device and method thereof |
-
2014
- 2014-08-07 CN CN201420443419.XU patent/CN204068281U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487485A (en) * | 2019-12-31 | 2020-08-04 | 杭州银湖电气设备有限公司 | Three-phase unbalanced load simulation test device and method thereof |
| CN111487485B (en) * | 2019-12-31 | 2022-06-17 | 杭州银湖电气设备有限公司 | Three-phase unbalanced load simulation test device and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |