CN202957605U - High power dynamic cutting unit - Google Patents
High power dynamic cutting unit Download PDFInfo
- Publication number
- CN202957605U CN202957605U CN 201220602954 CN201220602954U CN202957605U CN 202957605 U CN202957605 U CN 202957605U CN 201220602954 CN201220602954 CN 201220602954 CN 201220602954 U CN201220602954 U CN 201220602954U CN 202957605 U CN202957605 U CN 202957605U
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- Prior art keywords
- power
- unit
- dynamic switching
- shell
- high power
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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
Abstract
The utility model discloses a high power dynamic cutting unit, which substantially solves the problems in the prior art that a cutting unit can not frequently act, and is not high in safety and reliability. The high power dynamic cutting unit comprises a shell, and further comprises a current signal zero sampling circuit, a control unit and a high power electric power module which are arranged in the shell and are orderly connected, an input end of the control unit is connected with a controller, and an output end of the high power electric power module is connected with a load electric power capacitor. The high power dynamic cutting unit can achieve the purpose of frequent cutting operation, safety and reliability, and has high practical value and popularization value.
Description
Technical field
The utility model relates to a kind of switching unit, specifically, relates to a kind of high-power dynamic switching unit.
Background technology
In order to improve the power factor of electrical network in the electronic power system, reduce the loss of supply transformer and conveying circuit, improve power supplying efficiency, improve the power supply environment, need use reactive power compensator, thereby the quality of reactive power compensator performance is for determining the important factor of compensation effect.
As everyone knows, the switching mode of reactive power compensator is for determining its safety in utilization, reliability, the important factor of compensation effect, traditional reactive power compensator mostly adopts contactor or vacuum circuit-breaker to carry out switching, there is spring in such switching mode in making process, restrike and the overvoltage equivalent risk, can produce larger impulse current during combined floodgate, after the major loop separating brake, electric capacity needs certain electric discharge interval time, thereby this compensation arrangement can not frequent movement, to the fluctuation of load, can not respond in time, easily produced and mend and owe to mend, the reactive power that the impact load produces can not effective compensation, can not solve the spread of voltage that impact load brings, flicker changes, system losses are large and reduce the problem such as load transformer capacity.In addition, adopt contactor or vacuum circuit-breaker opening-closing capacitor bank when each input capacitor group, due to the input phase angle that can not select the control switch contact, can cause larger inrush phenomenon, produce overvoltage during excision and easily cause the switch contact damage, make capacitor shortening in useful life, had a strong impact on the useful life of installing self, also can bring pollution to distribution system simultaneously.
The utility model content
The purpose of this utility model is to provide a kind of high-power dynamic switching unit, and mainly solving the switching unit that exists in prior art can not frequent movement, the problem that safety and reliability is not high.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of high-power dynamic switching unit, comprise shell, also comprises and all be arranged in shell and connected current signal zero passage sample circuit, control unit, high-power electric module successively.
Specifically, the input of described control unit is connected with controller, and the output of described high-power electric module is connected with the load electric capacitor.
In order to improve antijamming capability of the present utility model, the casing that the all-metal that described shell is made for the employing isolation technology shields.
In order to realize that oncontacting reveals switching, described high-power electric module is the high power contactless power module.
Further, described high power contactless power module is the controllable silicon electric power controller, and described controllable silicon electric power controller also is connected with fast acting fuse.
As preferably, described control unit is the DSP digital signal processor.
Consider that the utility model is mainly used in the high-power electric module, caloric value is larger, also is provided with ventilating system on described shell.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model can effectively improve the power factor of power load, improve the actual loading ability of transformer, in reduction electronic power system, the loss of supply transformer and conveying circuit, improve power supplying efficiency, improve the power supply environment, there is significant energy-saving effect.
(2) the utility model adopts the controllable silicon electric power controller as switch, overcome that the common existing surge current of contactor opening-closing capacitor bank is large, the response time is long, maintenance cost is high and the shortcoming such as useful life is short, can follow the tracks of the load reactive current changes, thereby power capacitor bank is adopted to the zero passage quick-switching, and in the excision process without switching overvoltage, arc reignition phenomenon, but fast frequent switching of response time, noiselessness, long service life, maintenance capacity are few, range of application very extensively, use very convenient.
(3) the all-metal shielding case body of the shell in the utility model for adopting advanced isolation technology to be made, it has stronger antijamming capability, and can design and produce according to user's actual need installation, simple to operate, reliable, easy to maintenance, very easy to use.
(4) the utility model adopts the DSP digital signal processor to carry out integral body to control, and function is comparatively complete, and supports three-phase equilibrium dynamic compensation, phase-splitting dynamic compensation, is divided in conjunction with dynamic compensation, and three-phase voltage is very stable.
(5) in the utility model, the controllable silicon electric power controller is connected with fast acting fuse, and this fast acting fuse can carry out overcurrent and short-circuit protection to the controllable silicon electric power controller, has improved reliability and the fail safe in the application process.
(6) be provided with ventilating system in the utility model, it can effectively prevent that in casing, excess Temperature causes damage to each device, has further guaranteed useful life of the present utility model.
The accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and execution mode of the present utility model includes but not limited to the following example.
Embodiment
Can not frequent movement in order to solve the switching unit that exists in prior art, the problem that safety and reliability is not high, as shown in Figure 1, the utility model discloses a kind of high-power dynamic switching unit, comprise shell, the casing that the all-metal that this shell is made for the employing isolation technology shields, thereby there is stronger antijamming capability; Current signal zero passage sample circuit, control unit, high-power electric module in the enclosure all is set; And the output of current signal zero passage sample circuit is connected with control unit, the output of control unit is connected with the high-power electric module.Wherein, the input of control unit is connected with the controller of controlling the output of switching signal; The output of high-power electric module is connected with the load electric capacitor.
In the utility model, reveal switching in order to realize oncontacting, described high-power electric module is the high power contactless power module.As preferably, this high power contactless power module is the controllable silicon electric power controller, and for this controllable silicon electric power controller is carried out to overcurrent and short-circuit protection, described controllable silicon electric power controller also is connected with fast acting fuse.
Reliability while applying in order to ensure the utility model, control unit is selected the DSP digital signal processor that function is comparatively powerful.
Consider that the utility model is mainly used in the high-power electric module, caloric value is larger, also is provided with ventilating system on described shell.Because each module, device, system in the utility model are prior art, at this, just more do not speak more bright.
According to above-described embodiment, just can realize well the utility model.
Claims (7)
1. a high-power dynamic switching unit, comprise shell, it is characterized in that, also comprises and all be arranged in shell and connected current signal zero passage sample circuit, control unit, high-power electric module successively.
2. a kind of high-power dynamic switching according to claim 1 unit, is characterized in that, the input of described control unit is connected with controller, and the output of described high-power electric module is connected with the load electric capacitor.
3. a kind of high-power dynamic switching according to claim 2 unit, is characterized in that, the casing that the all-metal that described shell is made for the employing isolation technology shields.
4. a kind of high-power dynamic switching according to claim 3 unit, is characterized in that, described high-power electric module is the high power contactless power module.
5. a kind of high-power dynamic switching according to claim 4 unit, is characterized in that, described high power contactless power module is the controllable silicon electric power controller, and described controllable silicon electric power controller also is connected with fast acting fuse.
6. a kind of high-power dynamic switching according to claim 5 unit, is characterized in that, described control unit is the DSP digital signal processor.
7. a kind of high-power dynamic switching according to claim 6 unit, is characterized in that, also is provided with ventilating system on described shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602954 CN202957605U (en) | 2012-11-15 | 2012-11-15 | High power dynamic cutting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602954 CN202957605U (en) | 2012-11-15 | 2012-11-15 | High power dynamic cutting unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957605U true CN202957605U (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220602954 Expired - Fee Related CN202957605U (en) | 2012-11-15 | 2012-11-15 | High power dynamic cutting unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN202957605U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983579A (en) * | 2012-11-15 | 2013-03-20 | 成都星宇节能技术股份有限公司 | High-power dynamic switching unit and implementation method thereof |
| CN104269864A (en) * | 2014-10-21 | 2015-01-07 | 哈尔滨工业大学 | Contactor switching reactive compensation method based on response periodical prediction |
| CN107294107A (en) * | 2016-04-05 | 2017-10-24 | 天津市英实科技发展有限公司 | railway power system low-voltage dynamic compensating device |
-
2012
- 2012-11-15 CN CN 201220602954 patent/CN202957605U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983579A (en) * | 2012-11-15 | 2013-03-20 | 成都星宇节能技术股份有限公司 | High-power dynamic switching unit and implementation method thereof |
| CN104269864A (en) * | 2014-10-21 | 2015-01-07 | 哈尔滨工业大学 | Contactor switching reactive compensation method based on response periodical prediction |
| CN104269864B (en) * | 2014-10-21 | 2016-06-08 | 哈尔滨工业大学 | Catalyst switching reactive-load compensation method based on response period forecasting |
| CN107294107A (en) * | 2016-04-05 | 2017-10-24 | 天津市英实科技发展有限公司 | railway power system low-voltage dynamic compensating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610000 International Exhibition Trade Center, 2, Pioneer Road, hi tech Zone, Sichuan, Chengdu, 7F Patentee after: Chengdu Xingyu Rongke Power Electronics Co.,Ltd. Address before: 610000 International Exhibition Trade Center, 2, Pioneer Road, hi tech Zone, Sichuan, Chengdu, 7F Patentee before: CHENGDU XINGYU ENERGY-SAVING TECHNOLOGY Co.,Ltd. |
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| 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: 20130529 Termination date: 20211115 |