CN202737462U

CN202737462U - Intelligent integrated power capacitor used for filtering compensation device

Info

Publication number: CN202737462U
Application number: CN201220254080XU
Authority: CN
Inventors: 石教兴; 肖振东
Original assignee: HUBEI XIGAO ELECTRICAL EQUIPMENT CO Ltd
Current assignee: HUBEI XIGAO ELECTRICAL EQUIPMENT CO Ltd
Priority date: 2012-06-01
Filing date: 2012-06-01
Publication date: 2013-02-13
Anticipated expiration: 2022-06-01

Abstract

The utility model discloses an intelligent integrated power capacitor used for a filtering compensation device. The intelligent integrated power capacitor mainly comprises a housing, a rapid power source circuit breaker, a zero-switching synchronization switch, a power capacitor, an intelligent measurement and control component, a control display device and a communication interface. A wire-entering end of the rapid power source circuit breaker is connected with a system busbar through a wire-entering interface, and a wire-outing end of the rapid power source circuit breaker is electrically connected with an input end of the zero-switching synchronization switch; an output end of the zero-switching synchronization switch is electrically connected with an input end of the power capacitor; and the intelligent measurement and control component is connected with the rapid power source circuit breaker, the zero-switching synchronization switch, the power capacitor, the control display device and the communication interface respectively. The intelligent integrated power capacitor the utility model is advantageous in small dimension, low power consumption, high-integration degree of a product, low manufacturing cost, suitability for on-site, decentralized, centralized compensation, easiness in capacitance-expansion transformation, high-speed action response, capability of being operated frequently, less components in an entire system and high reliability.

Description

The Intelligent integration power condenser that is used for filtering compensation device

Technical field

The utility model relates to the technical field of power equipment, more particularly relates to the technical field that electric power is used compensating module.

Background technology

Development along with power electronic technology, nonlinear load is rolled up, because various power electronic device are used widely in industrial production, when working, all can produce a large amount of mains by harmonics such as nonlinear loads such as frequency converter, soft initiators, this harmonic wave can have a strong impact on the running quality of electrical network, strengthens for electric energy consumption.Therefore, just need to adopt filter to eliminate this harmonic wave, also need a kind of Electric capacity compensation device to be higher than the rated capacity compensation of shoving to moment, reach the purpose of eliminating flickering and voltage fluctuation, at present, want to realize this two functions, when power equipment is installed, just need to be installed in respectively its electronic component that needs in the electrical control cubicles, and then it is carried out mutual electrical connection, and guarantee that annexation is accurate, complex structure, installment work extremely bothers, maintenance is also inconvenient, thereby brings many potential safety hazards to operation power.

The utility model content

The purpose of this utility model provides a kind of level of integrated system high in order to solve above-mentioned deficiency exactly, and simple for structure, cost is low, and is easy for installation, easy maintenance, the Intelligent integration power condenser that is used for filtering compensation device stable and reliable for performance.

The technical solution that the utility model adopts in order to solve the problems of the technologies described above is as follows:

The Intelligent integration power condenser that is used for filtering compensation device, it mainly includes shell, quick power circuit breaker, zero switching synchro switch, power capacitor, the Intelligent testing control, control display device and communication interface, described quick power circuit breaker is installed in the top, interior rear flank of shell, top during zero switching synchro switch is installed inside the shell, power capacitor is installed in outer casing bottom, Intelligent testing control and control display device are installed in respectively the interior outside of shell front portion, communication interface is positioned at the rear portion of shell, the end of incoming cables of described quick power circuit breaker links to each other with system busbar by the inlet wire interface, its leading-out terminal is electrically connected with the input of zero switching synchro switch, the output of zero switching synchro switch is electrically connected with the input of power capacitor, described Intelligent testing control respectively with quick power circuit breaker, zero switching synchro switch, power capacitor, control display device and communication interface are electrically connected.

The top of described shell offers thermal window.

The rear portion of described shell is installed in the heat radiation axial flow blower, and this heat radiation axial flow blower is electrically connected with the Intelligent testing control.

The beneficial effect that the utility model adopts above-mentioned technical solution to reach is: 1, product is modular construction, and volume is little; 2, back panel wiring is simple, and power consumption is little; 3, the product integrated level is high, and is easy for installation, easy to maintenance; 4, standardized production and long distance transportation are convenient; 5, separate unit cabinet device capacity is large, and cost is low; 6, be fit on the spot, dispersion, centralized compensation, be convenient to extending capacity reformation; 7, realize that real zero passage drops into, no-flashy-flow is without switching overvoltage; 8, action response speed is fast, but frequent operation is low in energy consumption, volume is little, can conveniently realize phase splitting compensation control; 9, the control physical quantity is the reactive power type, adopts reactive power flow prediction and time-delay multi-point sampling technology, and definite switching is without concussion; 10, controller adopts superpower anti-interference singlechip box double watchdogs design, and System self-test is difficult for crashing; 11, be provided with overvoltage, under-voltage, overcurrent, phase shortage, switch fault, three-phase imbalance, the ambient temperature protection such as overflow; 12, have to be divided into and mend to mix control, communication interface can networking operation; But 13, intelligent capacitor self-organizing system work, respective capacitances are broken down and are automatically withdrawed from afterwards, do not affect whole system work; 14, the whole system components and parts are few, and reliability is high.

Description of drawings

Fig. 1 is main TV structure schematic diagram of the present utility model;

Fig. 2 is left TV structure schematic diagram of the present utility model;

Fig. 3 is right TV structure schematic diagram of the present utility model;

Fig. 4 is fundamental diagram of the present utility model;

Fig. 5 is operating instruction flow chart of the present utility model;

Among Fig. 1 to Fig. 3: 1-shell, 2-power capacitor, 3-mounting fixing parts, 4-earth terminal, the quick power circuit breaker of 5-, 6-circuit breaker end of incoming cables, 7-indicator light terminal, 8-RS485 communication terminal, the online terminal of 9-networking, 10-power capacitor, 11-mounting fixing parts, 12-hand automatic transfer switch, 13-operation display panel, 14-display unit, 15-signal lamp, 16-operation push-button, 17-heat abstractor

Embodiment

Extremely shown in Figure 5 by Fig. 1; the Intelligent integration power condenser that is used for filtering compensation device; it mainly includes shell; quick power circuit breaker; zero switching synchro switch; power capacitor; the Intelligent testing control; control display device and communication interface; described quick power circuit breaker is installed in the top, interior rear flank of shell; top during zero switching synchro switch is installed inside the shell; power capacitor is installed in outer casing bottom; Intelligent testing control and control display device are installed in respectively the interior outside of shell front portion; communication interface is positioned at the rear portion of shell; the end of incoming cables of described quick power circuit breaker links to each other with system busbar by the inlet wire interface; its leading-out terminal is electrically connected with the input of zero switching synchro switch; this quick power circuit breaker is Intelligent integration power condenser general supply master switch, cuts protection for Intelligent integration power condenser provides power supply disjunction and speed.The output of zero switching synchro switch is electrically connected with the input of power capacitor, should adopt the microelectronics software and hardware technology that mechanical type electromagnetic relay contact is control effectively by zero switching synchro switch, realization is based on the operating passing zero low voltage power capacitor synchro switch technology of mechanical contact, closed when making its contact two end alternating voltages be zero, disconnect when making its two ends alternating current be zero during the closing of contact, what produce when avoiding dropping into capacitor shoves to the impact of system voltage, reduces equipment loss and improves capacitor useful life.This power capacitor is aluminium shell, and capacitor internal uses the zinc-aluminium metallized polypropylene film as dielectric, and Stability and dependability is high, and power capacitor is mainly electric power system and improves the reactive power compensation compensation, is the capital equipment of this product.Described Intelligent testing control is electrically connected with quick power circuit breaker, zero switching synchro switch, power capacitor, control display device and communication interface respectively; protection definite value, capacitance, the CT no-load voltage ratios such as overvoltage, under-voltage, capacitor excess temperature can be set easily; on the same stage or the parameter such as capacitor switching interval on the same group can also not inquired about the equipment operational factors such as electric current, voltage, reactive power easily.The top of described shell offers thermal window, and the rear portion of shell is installed in the heat radiation axial flow blower, and this heat radiation axial flow blower is electrically connected with the Intelligent testing control, consists of the cooling system of this product by it, is the heat radiation of the electric elements in this product.

Above-mentioned each electric elements all can be bought in market and obtain, and its mutual concrete electrical connection also is those skilled in that art's common practise, need not to describe in detail at this.

This Intelligent integration power condenser is not enough for solving the compensation technique that exists in existing electric reactive compensating, the filter, and a kind of Intelligent integration power condenser with highly integrated zero switching synchro switch technology based on mechanical contact is provided.This product is take 1 or 2 power capacitors as main body; adopt the microelectronics software and hardware technology; the micro sensing technology; the up-to-date scientific and technological achievements such as micronet technology and electrical equipment manufacturing technology; realize low-voltage power reactive power compensation and reliably working; having zero switching, protection, measurement, signal, the series function such as online, is the important breakthrough of low-voltage power imaginary power automatic compensation art.This product can be applicable to the various occasions of low-pressure reactive compensation flexibly, have simple for structure, reduce the multiple advantages such as cost, performance raising, easy maintenance.

This Intelligent integration power condenser workflow is: form low-voltage reactive power by many intelligent power capacitors and mend cabinet, adopt the RS485 communication to carry out networking work during operation between each intelligent power capacitor, can the tentative of an address number minimum of automatic screening generation be main frame during intelligent power capacitor networking work, all the other are slave, after main frame is set relevant parameter, main frame can be handed down to all slaves in the communication, main frame gathers B phase current (milliampere level) by the secondary current instrument transformer, main frame master control borad CPU carries out reactive power and calculates, calculate the reactive power of vacancy, the step-length that is configured to minimum unit according to the intelligent power capacitor of all networkings is carried out reactive power compensation, main frame can be assigned the switching order to slave according to the reactive power of vacancy, the slave that capacity is identical carries out switching by endless form, capacity is different presses the capacitance switching, realize the compensation of optimization Automatic Combined, prolong power capacitor and related electric component useful life, improve the quality of power supply, saving energy and decreasing loss.

This intelligent integrated capacitor is a kind of employing microelectronics software and hardware technology; the micro sensing technology; the Intelligent integration power condenser that the up-to-date scientific and technological achievement such as micronet technology and electrical equipment manufacturing technology is made; have Highgrade integration and zero switching, protection, measurement, signal, the series function such as online, product can be applicable to the various occasions of low-pressure reactive compensation flexibly.

Claims

1. the Intelligent integration power condenser that is used for filtering compensation device, it is characterized in that: it mainly includes shell, quick power circuit breaker, zero switching synchro switch, power capacitor, the Intelligent testing control, control display device and communication interface, described quick power circuit breaker is installed in the top, interior rear flank of shell, top during zero switching synchro switch is installed inside the shell, power capacitor is installed in outer casing bottom, Intelligent testing control and control display device are installed in respectively the interior outside of shell front portion, communication interface is positioned at the rear portion of shell, the end of incoming cables of described quick power circuit breaker links to each other with system busbar by the inlet wire interface, its leading-out terminal is electrically connected with the input of zero switching synchro switch, the output of zero switching synchro switch is electrically connected with the input of power capacitor, described Intelligent testing control respectively with quick power circuit breaker, zero switching synchro switch, power capacitor, control display device and communication interface are electrically connected.

2. the intelligent integrated compensating module for the filter capacitor compensation arrangement according to claim 1, it is characterized in that: the top of described shell offers thermal window.

3. the intelligent integrated compensating module for the filter capacitor compensation arrangement according to claim 1 and 2, it is characterized in that: the rear portion of described shell is installed in the heat radiation axial flow blower, and this heat radiation axial flow blower is electrically connected with the Intelligent testing control.