CN205377074U - Dynamic reactive compensation harmonic cabinet - Google Patents
Dynamic reactive compensation harmonic cabinet Download PDFInfo
- Publication number
- CN205377074U CN205377074U CN201620171285.XU CN201620171285U CN205377074U CN 205377074 U CN205377074 U CN 205377074U CN 201620171285 U CN201620171285 U CN 201620171285U CN 205377074 U CN205377074 U CN 205377074U
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- CN
- China
- Prior art keywords
- silicon controlled
- controlled module
- cabinet
- trigger
- filter circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
Abstract
The utility model discloses a dynamic reactive compensation harmonic cabinet, including the cabinet body, the internal main circuit breaker that is provided with of cabinet, silicon controlled module, trigger, axial fan, the silicon controlled module is connected with the tunable filter ware, the bottom of this harmonic cabinet is provided with a plurality of condensers, a plurality of condensers be connected to respectively on the tunable filter ware, still be provided with voltage measurement circuit and current measurement return circuit in the harmonic cabinet, this voltage measurement circuit and current measurement return circuit are used for measuring voltage and current signal on the generating line inlet wire, and the controller calculates reactive power according to voltage and current signal, reach control signal with the reactive power that sets for after relatively, and the control trigger sends triggering signal, and this triggering signal control silicon controlled module switches on, carries out reactive compensation by the condenser. This dynamic reactive compensation harmonic cabinet is rational in infrastructure, can restrain effectively and administer the harmonic, guarantees quality of supply, reduces the line loss, and reactive power continuously adjustable improves the ability to transmit electricity.
Description
Technical field
This utility model relates to a kind of dynamic passive compensation harmonic wave cabinet, belongs to electric power project engineering field.
Background technology
Reactive power sets up the needs of electromagnetic field when being and work for those inductive loads, and carrys out a kind of power of transmission back between electric power networks and these equipment.Reactive power is the same with active power is indispensable ingredient in transmission and distribution network, reactive power to electric power system and load system properly functioning be highly important, be also required.Owing to electrical network existing substantial amounts of inductive load, so being accomplished by the reactive power that power supply department provides enough.If these reactive powers have electromotor (factory) send and be sent to required place by the transmission line of electricity of distance, this is clearly unreasonable, uneconomic, is actually also impossible.And to be also reasonably most efficient method be exactly need reactive power place or near generation (sending) reactive power, i.e. reactive power compensation.
Nonlinear load (such as speed-regulating actuator, converter, uninterrupted power source, dimming lamp, television set, electric arc furnace, electric welding machine, fluorescent lamp etc.) draws non-linear cycle electric current from electrical network, this non-linear current can be broken down into the Fundamental-frequency Current (fundamental frequency the is f=50Hz) electric current plus a series of fundamental frequency multiples (frequency is nf) by Fourier transform, will be above the electric current of fundamental frequency and be called harmonic current, title n is overtone order.
The harm of harmonic wave includes the rated current and the voltage that increase various electrical equipment, causes extra power attenuation therefrom, directly makes the efficiency of electrical equipment reduce；Hinder the normal operation of electricity equipment, cause added losses, reduce the service life of equipment so that it is lose normal discriminating power, time serious, also can cause the resonance phenomena in public electric wire net.
Utility model content
The purpose of this utility model is in that to solve the problems referred to above, it is provided that a kind of novel a kind of dynamic passive compensation harmonic wave cabinet.
A kind of dynamic passive compensation harmonic wave cabinet described in the utility model includes cabinet, main circuit breaker it is provided with in cabinet, this main circuit breaker is connected on filter circuit, this filter circuit includes the first filter circuit, the second filter circuit and the 3rd filter circuit, wherein the first filter circuit is in series with the first chopper, this first chopper and the first silicon controlled module connect, and this first silicon controlled module and the first trigger connect；First silicon controlled module is arranged below the first axial flow blower；Being in series with the second chopper on second filter circuit, this second chopper and the second silicon controlled module connect, and this second silicon controlled module and the second trigger connect；Second silicon controlled module is arranged below the second axial flow blower；Being in series with the 3rd chopper on 3rd filter circuit, the 3rd chopper and the 3rd silicon controlled module connect, and the 3rd silicon controlled module and the 3rd trigger connect；3rd silicon controlled module is arranged below the 3rd axial flow blower；Described the first silicon controlled module, the second silicon controlled module and the 3rd silicon controlled module are also connected with tuning filtering device respectively；The bottom of this harmonic wave cabinet is provided with multiple capacitor, and described multiple capacitors are connected respectively on tuning filtering device；Harmonic wave cabinet is additionally provided with voltage measurement circuit and current measurement circuit, this voltage measurement circuit and current measurement circuit are for measuring the voltage and current signal on bus inlet wire, controller calculates reactive power according to voltage and current signal, control signal is drawn after comparing with the reactive power set, control the first trigger, the second trigger and/or the 3rd trigger and send triggering signal, this triggering signal controls the first silicon controlled module, the second silicon controlled module and/or the conducting of the 3rd silicon controlled module, capacitor carry out reactive-load compensation.
Solid-state relay and discharge box it is additionally provided with in described cabinet, after discharge box is connected with solid-state relay, in parallel with capacitor by solid-state relay.
Described the first silicon controlled module, the second silicon controlled module and the 3rd silicon controlled module are also connected with rc absorber respectively, the end of incoming cables of the input of rc absorber and the first silicon controlled module, the second silicon controlled module and the 3rd silicon controlled module connects, and the earth terminal of rc absorber is connected with ground wire.
Compared with prior art, technical solutions of the utility model provide the benefit that:
A kind of dynamic passive compensation harmonic wave cabinet described in the utility model is reasonable, it is possible to effectively suppresses and administers harmonic wave, it is ensured that power supply quality, reduces line loss, reactive power continuously adjustabe, improves ability to transmit electricity.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of a kind of dynamic passive compensation harmonic wave cabinet described in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical scheme in this utility model is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of this utility model protection.
As shown in Figure 1, a kind of dynamic passive compensation harmonic wave cabinet described in the utility model includes cabinet 1, main circuit breaker 2 it is provided with in cabinet 1, this main circuit breaker 2 is connected on filter circuit, this filter circuit includes the first filter circuit, the second filter circuit and the 3rd filter circuit, wherein being in series with the first chopper 3 on the first filter circuit, this first chopper 3 is connected with the first silicon controlled module 6, and this first silicon controlled module 6 is connected with the first trigger 9；First silicon controlled module 6 is arranged below the first axial flow blower 16；Being in series with the second chopper 4 on second filter circuit, this second chopper 4 is connected with the second silicon controlled module 7, and this second silicon controlled module 7 is connected with the second trigger 10；Second silicon controlled module 7 is arranged below the second axial flow blower 17；Being in series with the 3rd chopper 5 on 3rd filter circuit, the 3rd chopper 5 is connected with the 3rd silicon controlled module 8, and the 3rd silicon controlled module 8 is connected with the 3rd trigger 11；3rd silicon controlled module 8 is arranged below the 3rd axial flow blower 18；First described silicon controlled module the 6, second silicon controlled module 7 and the 3rd silicon controlled module 8 are also connected with tuning filtering device respectively；The bottom of this harmonic wave cabinet is provided with multiple capacitor 13, and described multiple capacitors 13 are connected respectively on tuning filtering device；Harmonic wave cabinet is additionally provided with voltage measurement circuit and current measurement circuit, this voltage measurement circuit and current measurement circuit are for measuring the voltage and current signal on bus inlet wire, controller calculates reactive power according to voltage and current signal, control signal is drawn after comparing with the reactive power set, control first trigger the 9, second trigger 10 and/or the 3rd trigger 11 sends triggering signal, this triggering signal controls first silicon controlled module the 6, second silicon controlled module 7 and/or the 3rd silicon controlled module 8 turns on, capacitor carry out reactive-load compensation.
If the reactive power that controller calculates according to voltage and current signal compares with the reactive power of setting draws the control signal needing not compensate for reactive power afterwards, then first trigger the 9, second trigger 10 and/or the 3rd trigger 11 do not produce to trigger signal, and first silicon controlled module the 6, second silicon controlled module 7 and/or the 3rd silicon controlled module 8 are also not turned on.
Solid-state relay 14 and discharge box 15 it is additionally provided with in described cabinet 1, after discharge box 15 is connected with solid-state relay 14, in parallel with capacitor 13 by solid-state relay 14.In work when first silicon controlled module the 6, second silicon controlled module 7 and the 3rd silicon controlled module 8 disconnect time, by solid-state relay 14, discharge box 15 and capacitor 13 are turned on, rapidly capacitor 13 is discharged, it is to avoid the high-voltage impact silicon controlled module of capacitor, reduce the fault rate of harmonic wave cabinet.
First described silicon controlled module the 6, second silicon controlled module 7 and the 3rd silicon controlled module 8 are also connected with rc absorber 12 respectively, the input of rc absorber 12 and the end of incoming cables of first silicon controlled module the 6, second silicon controlled module 7 and the 3rd silicon controlled module 8 connect, and the earth terminal of rc absorber 12 is connected with ground wire.Rc absorber 12 can be effectively prevented the transient overvoltage in cabinet 1 and impact the generation damage of important electric equipment.
In sum, being this utility model embodiment content, and obvious embodiment of the present utility model is not limited to that, it according to different application environment, can utilize functional realiey corresponding demand of the present utility model.
Claims (3)
1. a dynamic passive compensation harmonic wave cabinet, including cabinet, it is characterized in that, main circuit breaker it is provided with in cabinet, this main circuit breaker is connected on filter circuit, and this filter circuit includes the first filter circuit, the second filter circuit and the 3rd filter circuit, is wherein in series with the first chopper on the first filter circuit, this first chopper and the first silicon controlled module connect, and this first silicon controlled module and the first trigger connect；First silicon controlled module is arranged below the first axial flow blower；Being in series with the second chopper on second filter circuit, this second chopper and the second silicon controlled module connect, and this second silicon controlled module and the second trigger connect；Second silicon controlled module is arranged below the second axial flow blower；Being in series with the 3rd chopper on 3rd filter circuit, the 3rd chopper and the 3rd silicon controlled module connect, and the 3rd silicon controlled module and the 3rd trigger connect；3rd silicon controlled module is arranged below the 3rd axial flow blower；Described the first silicon controlled module, the second silicon controlled module and the 3rd silicon controlled module are also connected with tuning filtering device respectively；The bottom of this harmonic wave cabinet is provided with multiple capacitor, and described multiple capacitors are connected respectively on tuning filtering device；Harmonic wave cabinet is additionally provided with voltage measurement circuit and current measurement circuit, this voltage measurement circuit and current measurement circuit are for measuring the voltage and current signal on bus inlet wire, controller calculates reactive power according to voltage and current signal, control signal is drawn after comparing with the reactive power set, control the first trigger, the second trigger and/or the 3rd trigger and send triggering signal, this triggering signal controls the first silicon controlled module, the second silicon controlled module and/or the conducting of the 3rd silicon controlled module, capacitor carry out reactive-load compensation.
2. a kind of dynamic passive compensation harmonic wave cabinet according to claim 1, it is characterised in that be additionally provided with solid-state relay and discharge box in described cabinet, after discharge box is connected with solid-state relay, in parallel with capacitor by solid-state relay.
3. a kind of dynamic passive compensation harmonic wave cabinet according to claim 2, it is characterized in that, described the first silicon controlled module, the second silicon controlled module and the 3rd silicon controlled module are also connected with rc absorber respectively, the end of incoming cables of the input of rc absorber and the first silicon controlled module, the second silicon controlled module and the 3rd silicon controlled module connects, and the earth terminal of rc absorber is connected with ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171285.XU CN205377074U (en) | 2016-03-07 | 2016-03-07 | Dynamic reactive compensation harmonic cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171285.XU CN205377074U (en) | 2016-03-07 | 2016-03-07 | Dynamic reactive compensation harmonic cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205377074U true CN205377074U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620171285.XU Expired - Fee Related CN205377074U (en) | 2016-03-07 | 2016-03-07 | Dynamic reactive compensation harmonic cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205377074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024239A (en) * | 2017-03-27 | 2017-08-08 | 贵州大学 | A kind of mounting box for combined mechanical instrument |
| CN110336297A (en) * | 2019-07-16 | 2019-10-15 | 武汉腾江电气制造有限公司 | Using the reactive compensation cabinet of high-power thyristor quick-switching |
-
2016
- 2016-03-07 CN CN201620171285.XU patent/CN205377074U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024239A (en) * | 2017-03-27 | 2017-08-08 | 贵州大学 | A kind of mounting box for combined mechanical instrument |
| CN110336297A (en) * | 2019-07-16 | 2019-10-15 | 武汉腾江电气制造有限公司 | Using the reactive compensation cabinet of high-power thyristor quick-switching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |