CN203859523U - Mobile type active power filter device - Google Patents
Mobile type active power filter device Download PDFInfo
- Publication number
- CN203859523U CN203859523U CN201420207319.7U CN201420207319U CN203859523U CN 203859523 U CN203859523 U CN 203859523U CN 201420207319 U CN201420207319 U CN 201420207319U CN 203859523 U CN203859523 U CN 203859523U
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- China
- Prior art keywords
- circuit
- cabinet
- control
- dlc
- cabinet body
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- 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
- Y02E40/40—Arrangements for reducing harmonics
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to a mobile type active power filter device, comprising a cabinet body and a control circuit inside the cabinet body, wherein the cabinet body is in a shape of a cube, a panel of the cabinet body is provided with a control touch screen, indicating lamps and operation buttons, and the cabinet bottom of the cabinet body selects durable rubber wheels. The mobile type active power filter device is characterized in that: the control circuit inside the cabinet body comprises a circuit breaker QF, a contactor KM and a current control center DLC, and the current control center DLC is composed of a command current operational circuit, a current tracking control circuit, a compensation control driving circuit, a main circuit and a protection loop. The mobile type active power filter device is a parallel active control device, can carry out active compensation for harmonic currents, fundamental wave phase shifting power factors, voltage fluctuations and three-phase imbalance of various loads simultaneously, has high adaptivity, is convenient to install, can effectively guarantee the quality of electric energy of a power supply point of common coupling, and can effectively solve the problems such as large loss of equipment terminal, heated and even burnt power leads and other potential accidents caused by harmonic waves.
Description
Technical field
The utility model belongs to electrical technology field, relates to quality of power supply compensation, especially a kind of portable active filter device.
Background technology
The voltage that normal utility network provides should be the sinusoidal waveform with fixed frequency, regulation amplitude and three-phase equilibrium, but in fact in electrical network, exist a large amount of nonlinear-loads such as power electronic equipment, these loads not only produce a large amount of harmonic current injection electrical networks in running, some three-phase current unbalances, what have has features such as intermittence, impact, thereby cause supply power voltage wave distortion, imbalance of three-phase voltage, and voltage fluctuation, flickering, the problem such as be interrupted, subside.In utility network, extensively exist above-mentioned power quality problem, directly have influence on the safety and economic operation of electric power system and user's electric equipment.
The device that improves the quality of power supply has fixed passive power filter (PPF), fixed Active Power Filter-APF (APF) etc.Filtering when passive power filter (PPF) is mainly used in needing reactive power compensation and pressure regulation, and filter effect is low, especially for 3 subharmonic; Fixed active filter (APF) is mainly used to compensate the harmonic current that various nonlinear-loads produce, filter effect is obvious, can reach more than 85%, but owing to being subject to the restriction of self-condition, can not be to causing any place that the quality of power supply is low effectively to administer.
At present, appearance along with places such as domestic a large amount of variety show, sports, due to it, use the adjusting devices such as light, sound equipment all at the scene in, and power supply causes near switchgear house by cable, distance is distant, in service at its equipment, produce a large amount of harmonic waves, especially take 3 subharmonic as main; Triple harmonic current in harmonic wave all belongs to zero-sequence component, all can flow through the neutral line, and will on the neutral line, produce larger loss, and cause the neutral line seriously to generate heat, the even possible fire that causes on fire, the accident causing thus can be found everywhere.
Domestic all harmonic decrease devices are all arranged on switchgear house, and the harmonic wave that device end (especially mobile device) is produced, and the quality of power supply causing is low, and the loss of device power supply (DPS) lead-in wire increases, so burn and other accident potential helpless.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of portable active filter device is provided, and it is adjusted the overall structure of existing active power compensator, in many-sides such as reducing capacity, improvement control strategy, innovates.
The purpose of this utility model is achieved through the following technical solutions:
A kind of portable active filter device; comprise cabinet and the control circuit in cabinet; cabinet is the cubic bodily form; on the panel of cabinet, there is touch-screen, indicator light and the action button of control; at the bottom of the cabinet of cabinet, select durable rubber tire; it is characterized in that: the control circuit in described cabinet comprises circuit breaker Q F, contactor KM and electric current regulation and control center DLC, electric current regulation and control center DLC controls drive circuit, main circuit and protection loop by instruction current computing circuit, current tracking control circuit, compensation and forms.
And, described electric current regulation and control center DLC adopts 660V opening voltage clamp to connect power supply by terminal CT2, between terminal CT2 and opening voltage clamp, circuit breaker Q F is set, electric current regulation and control center DLC clamps collection signal by terminal CT1 by outside opening formula signal, and the signal collecting is made after preliminary treatment by instruction current computing circuit, signal is exported to main circuit through current tracking control circuit, drive circuit by way of compensation, produce thus corresponding modulated pulse width signal, through circuit breaker, feed back in electrical network.
Advantage of the present utility model and good effect are:
1, the utility model is a kind of parallel active type regulation device, can to the harmonic current of various loads, first-harmonic phase shift power factor, voltage fluctuation and three-phase imbalance, carry out active compensation simultaneously, the adaptivity with height, easy for installation, the quality of power supply of the points of common connection that can effectively guarantee to power; Can effectively solve that the device end loss being caused by harmonic wave is large, power supply lead wire heating is even burnt and the problem such as other accident potential simultaneously.
2, the utility model adopts the digital-analogue formula Mersure Controler that high-speed dsp and Industrial Control Computer combine, the major loop forming with large power semiconductor device, there is special topological structure, with the fixed compensation that solves existing electric energy quality compensating device existence, can not be suitable for the flexible and changeable desired shortcoming in field, be suitable for each amusement type performance and sports place.
Accompanying drawing explanation
Fig. 1 is the functional-block diagram of the utility model access power circuit;
Fig. 2 is the outline drawing of the utility model device, and wherein, Fig. 2 (1) is cabinet back view, and Fig. 2 (2) is cabinet front elevation, and Fig. 2 (3) is device arrangements figure in cabinet.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described; The present embodiment is descriptive, is not determinate, can not limit thus protection range of the present utility model.
A kind of portable active filter device, referring to Fig. 1, comprise cabinet and the control circuit in cabinet, the structure of cabinet is referring to Fig. 2, for the cubic bodily form, cabinet is of a size of 600mm*500mm*1300mm (wide * is dark, and * is high), and framework adopts 3.0mm to cover a crimping of aluminium zine plate and forms, to guarantee its robustness; Mounting panel adopts 1.5mm to cover aluminium zine plate, according to a crimping of standard module, forms; Panel adopts 2.0m steel plate, and electrostatic plastic spraying forms; On panel, there is touch-screen, indicator light and the action button of control; At the bottom of cabinet, select the durable rubber tire of diameter 5cm, two fixed, two universal, facilitate device to move.
On device panel, the digital-analogue formula Mersure Controler that adopts high speed digital signal processor DSP+CPLD to combine is installed, can easily carry out on-site parameters setting, carry out synchronized sampling, measurement and demonstration power network signal, filter compensating signal, compensation prior fault signal etc. simultaneously, by host computer communication interface, be connected with consistency operation system; Orientation, universal rubber wheel that bottom of device is installed, can move to equipment near the equipment that need to administer harmonic wave easily, and harmonic source is taked to administer on the spot.
Control circuit in cabinet comprises circuit breaker Q F, contactor KM and electric current regulation and control center DLC; electric current regulation and control center DLC controls drive circuit, main circuit and protection loop by instruction current computing circuit, current tracking control circuit, compensation and forms; electric current regulation and control center DLC adopts 660V opening voltage clamp to connect power supply by terminal CT2; between terminal CT2 and opening voltage clamp, circuit breaker Q F is set, electric current regulation and control center DLC passes through terminal CT1 collection signal by terminal CT1 by outside opening formula signal pincers.This device is by terminal CT1 collection signal, and the signal collecting is made after preliminary treatment by instruction current computing circuit, signal is exported to main circuit through current tracking control circuit, drive circuit by way of compensation, produce thus corresponding modulated pulse width signal, through circuit breaker, feed back in electrical network; Once electric current regulation and control center DLC breaks down, be about to feedback signal and send into protection loop, cause contactor KM action, with the autoprotection of finishing device.
System harmonics signal is by installing industrial Signal plug CT1, adopting open type current clamp to be injected into electric current regulation and control center regulation and control center DLC goes out and its equal and opposite in direction, opposite polarity electric current according to the size of system harmonics electric current, inversion, by KM, QF and industrial cable plug CT2, adopt large electric current crocodile clip, inject electrical network.
Claims (2)
1. a portable active filter device; comprise cabinet and the control circuit in cabinet; cabinet is the cubic bodily form; on the panel of cabinet, there is touch-screen, indicator light and the action button of control; at the bottom of the cabinet of cabinet, select durable rubber tire; it is characterized in that: the control circuit in described cabinet comprises circuit breaker Q F, contactor KM and electric current regulation and control center DLC, electric current regulation and control center DLC controls drive circuit, main circuit and protection loop by instruction current computing circuit, current tracking control circuit, compensation and forms.
2. portable active filter device according to claim 1, it is characterized in that: described electric current regulation and control center DLC adopts 660V opening voltage clamp to connect power supply by terminal CT2, between terminal CT2 and opening voltage clamp, circuit breaker Q F is set, electric current regulation and control center DLC clamps collection signal by terminal CT1 by outside opening formula signal, and the signal collecting is made after preliminary treatment by instruction current computing circuit, signal is through current tracking control circuit by way of compensation, drive circuit is exported to main circuit, produce thus corresponding modulated pulse width signal, through circuit breaker, feed back in electrical network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207319.7U CN203859523U (en) | 2014-04-25 | 2014-04-25 | Mobile type active power filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207319.7U CN203859523U (en) | 2014-04-25 | 2014-04-25 | Mobile type active power filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859523U true CN203859523U (en) | 2014-10-01 |
Family
ID=51609362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207319.7U Expired - Fee Related CN203859523U (en) | 2014-04-25 | 2014-04-25 | Mobile type active power filter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374467A (en) * | 2015-07-22 | 2017-02-01 | 利思电气（上海）有限公司 | Mobile outdoor high-voltage active filtering apparatus |
-
2014
- 2014-04-25 CN CN201420207319.7U patent/CN203859523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374467A (en) * | 2015-07-22 | 2017-02-01 | 利思电气（上海）有限公司 | Mobile outdoor high-voltage active filtering apparatus |
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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: 20141001 Termination date: 20190425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |