CN202712851U - Universal electric energy quality controller - Google Patents
Universal electric energy quality controller Download PDFInfo
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- CN202712851U CN202712851U CN 201220271007 CN201220271007U CN202712851U CN 202712851 U CN202712851 U CN 202712851U CN 201220271007 CN201220271007 CN 201220271007 CN 201220271007 U CN201220271007 U CN 201220271007U CN 202712851 U CN202712851 U CN 202712851U
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- inverter
- side inverter
- quality controller
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Abstract
Disclosed is a universal electric energy quality controller, comprising a bypass switch, a bypass bidirectional electronic switch, a net side inverter, a super capacitor, and a load side inverter, wherein two ends of the super capacitor are simultaneously and respectively connected with the net side inverter and the load side inverter; the net side inverter is connected with a power supply side; the load side inverter is connected with the load side; the bypass bidirectional electronic switch is connected between the power supply side and the load side; and the bypass switch is connected between the power supply side and the load side. The universal electric energy quality controller of the utility model is capable of effectively solving voltage swell, voltage dip, voltage fluctuation, and other electric energy quality problems and is helpful in reducing the economic loss resulting from the poor power supply quality of the power system.
Description
Technical field
The utility model relates to a kind of Unified Power Quality Controller.
Background technology
Electric energy is as the foundation stone of development of modern industry, and the standard of its quality is closely-related with the stage of industrial development.Along with the development of science and technology, various loads improve constantly the requirement of power system power supply quality, such as communication, microcomputer and accurate control etc.Yet in nearly decades because a large amount of power electronics load and the use of nonlinear-load in electric power system, so that the power system power supply quality further worsens; The economic loss that it is worth noting in recent years the system that caused by power supply quality and user is also day by day serious, and at present in industrialized country, voltage dip has risen to most important power quality problem.Present stage uses Unified Power Quality Controller (UPQC) the most obvious for electric power system quality of voltage solution of problem effect.Build the Unified Power Quality Controller of large capacity, voltage levels (UPQC) owing to only having in the world a few countries to have ability at present, and they monopolize this equipment technically.China has released successively the electric energy quality controller of some independent researches and has dropped into actual the use for this reason, is that on June 22nd, 2004 and application number are the patent of invention that 200410049629.1 name is called series power quality controller such as the applying date.But because its major part all is common series power quality controller, although the controller that therefore comes into operation plays a role to eliminating electric power system voltage disturbance event, effect is also not obvious.
Summary of the invention
The purpose of this utility model be to overcome the defective of prior art and provide a kind of and can solve efficiently voltage collapse and rise sharply, the Unified Power Quality Controller of the power quality problem such as voltage fluctuation, and saved traditional transformer isolation link, simple in structure.
For achieving the above object, the utility model adopts following technical scheme:
A kind of Unified Power Quality Controller is connected between mains side and the load side, comprises by-pass switch, bypass bidirectional electronic switch, net side inverter, ultracapacitor and load side inverter, wherein:
The two ends of described ultracapacitor connect respectively described net side inverter and load side inverter simultaneously;
Described net side inverter connects described mains side;
Described load side inverter connects described load-side;
Described bypass bidirectional electronic switch is connected between described mains side and the load-side;
Described by-pass switch is connected between described mains side and the load-side.
Above-mentioned Unified Power Quality Controller, wherein, described net side inverter connects described mains side by a fuse.
Above-mentioned Unified Power Quality Controller, wherein, described load inverter connects described load-side by a fuse.
The beneficial effects of the utility model are: the utility model for solve voltage collapse and rise sharply, the power quality problem such as voltage fluctuation, improve the quality of power supply, thereby be conducive to reduce the economic loss that causes because of the power system power supply quality.And saved traditional transformer isolation link, simple in structure, realize with low cost.Simultaneously, the ultracapacitor of introducing is so that the utlity model has high stability and certain margin of energy.
Description of drawings
Fig. 1 is the structural representation of Unified Power Quality Controller of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1, Unified Power Quality Controller of the present utility model, be connected between mains side 1 and the load side 2, this Unified Power Quality Controller comprises bypass bidirectional electronic switch 3, net side inverter 4, load side inverter 5, ultracapacitor 6 and by-pass switch 7, wherein:
The two ends of ultracapacitor 6 are respectively connection network side inverter 4 and load side inverter 5 simultaneously, for net side inverter 4 and load side inverter 5 provide the dc voltage of long period to support;
Load side inverter 5 connects load-side 2;
Bypass bidirectional electronic switch 3 is connected between mains side 1 and the load-side 2;
By-pass switch 7 is connected between mains side 1 and the load-side 2, and namely by-pass switch 7 is in parallel with bypass bidirectional electronic switch 3.
In the present embodiment, net side inverter 4 connects mains side 1 by a fuse, and load inverter 5 is by another fuse connection load-side 2, thereby blown fuse under extreme case plays a protective role.
Power supply is normal generally speaking, by-pass switch 7 closures, and the utility model is not worked; When power quality problem occurring, by-pass switch 7 disconnects, and the utility model enters operating state, solves voltage collapse and rises sharply, the power quality problem such as voltage fluctuation, improve the quality of power supply, thereby be conducive to reduce the economic loss that causes because of the power system power supply quality.The utlity model has reactive current and harmonic current compensation and dynamic electric voltage regulatory function, have simultaneously high stability and certain margin of energy.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that do not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (3)
1. a Unified Power Quality Controller is connected between mains side and the load side, it is characterized in that, comprises by-pass switch, bypass bidirectional electronic switch, net side inverter, ultracapacitor and load side inverter, wherein:
The two ends of described ultracapacitor connect respectively described net side inverter and load side inverter simultaneously;
Described net side inverter connects described mains side;
Described load side inverter connects described load-side;
Described bypass bidirectional electronic switch is connected between described mains side and the load-side;
Described by-pass switch is connected between described mains side and the load-side.
2. Unified Power Quality Controller according to claim 1 is characterized in that, described net side inverter connects described mains side by a fuse.
3. Unified Power Quality Controller according to claim 1 is characterized in that, described load inverter connects described load-side by a fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271007 CN202712851U (en) | 2012-06-08 | 2012-06-08 | Universal electric energy quality controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271007 CN202712851U (en) | 2012-06-08 | 2012-06-08 | Universal electric energy quality controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712851U true CN202712851U (en) | 2013-01-30 |
Family
ID=47593116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220271007 Expired - Lifetime CN202712851U (en) | 2012-06-08 | 2012-06-08 | Universal electric energy quality controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390881A (en) * | 2013-07-05 | 2013-11-13 | 广东电网公司电力科学研究院 | Intelligent protection circuit and method of unified power quality conditioner |
| CN103606914A (en) * | 2013-11-13 | 2014-02-26 | 广东电网公司电力科学研究院 | Energy-saving system of unified power quality conditioner and controlling method thereof |
-
2012
- 2012-06-08 CN CN 201220271007 patent/CN202712851U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390881A (en) * | 2013-07-05 | 2013-11-13 | 广东电网公司电力科学研究院 | Intelligent protection circuit and method of unified power quality conditioner |
| CN103606914A (en) * | 2013-11-13 | 2014-02-26 | 广东电网公司电力科学研究院 | Energy-saving system of unified power quality conditioner and controlling method thereof |
| CN103606914B (en) * | 2013-11-13 | 2017-01-04 | 广东电网公司电力科学研究院 | The energy conserving system of Unified Power Quality Controller and control 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: 20130130 |