CN204928143U - Outdoor type active power filter who possesses timesharing energy storage function - Google Patents

Outdoor type active power filter who possesses timesharing energy storage function Download PDF

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Publication number
CN204928143U
CN204928143U CN201520544400.9U CN201520544400U CN204928143U CN 204928143 U CN204928143 U CN 204928143U CN 201520544400 U CN201520544400 U CN 201520544400U CN 204928143 U CN204928143 U CN 204928143U
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China
Prior art keywords
timesharing
energy
timesharing energy
outdoor type
electric power
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CN201520544400.9U
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Chinese (zh)
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舒观澜
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Leith Electric (shanghai) Co Ltd
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Leith Electric (shanghai) Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/20Active power filtering [APF]

Abstract

The utility model relates to an outdoor type active power filter who possesses timesharing energy storage function, including direct current source, dc -to -ac converter, current transformer, harmonic extraction ware, central processing unit and PWM ripples generator, the dc -to -ac converter is connected in the direct current source, transmission line between electric wire netting and load is connected to the dc -to -ac converter, current transformer is connected load and harmonic extraction ware respectively, harmonic extraction ware, central processing unit, PWM ripples generator and dc -to -ac converter connect gradually, still include timesharing energy storage controller and the charging circuit who connects gradually, energy storage device and boost circuit, charging circuit is through first time -shared switch connected load side transmission line, it is parallelly connected with the direct current source that boost circuit passes through the second time -shared switch, first time -shared switch and second time -shared switch are connected respectively to timesharing energy storage controller. Compared with the prior art, the utility model has the advantages of simple to operate, the cost is very low, and the configuration is nimble changeable, overhauls and maintains the convenience, operates directly perceivedly.

Description

A kind of outdoor type electric power active filter possessing timesharing energy-storage function
Technical field
The utility model relates to a kind of active power filter, especially relates to a kind of outdoor type electric power active filter possessing timesharing energy-storage function.
Background technology
The harmonic wave that nonlinear-load causes brings serious negative effect equally, particularly along with the fast development of power electronic technology, the application that various power electronic equipment is increasingly extensive in generating, transmission of electricity, distribution and using electricity system, harmonic wave, idle pollution that it brings electrical network are also serious gradually.Simultaneously along with the progress of social informatization, the extensive use of sensitiveness load (as computer control system, sophisticated electronics etc.), it is also proposed higher requirement to the quality of power supply.
Utility model content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and a kind of outdoor type electric power active filter possessing timesharing energy-storage function is provided, have easy for installation, cost is very low, and flexible configuration is changeable, repair and maintenance is convenient, operates the advantages such as directly perceived.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of outdoor type electric power active filter possessing timesharing energy-storage function, comprise DC source, inverter, current transformer, harmonic wave extractor, central processing unit and PWM baud generator, described DC source connects inverter, described inverter is connected to transmission line between electrical network and load, described current transformer connects load and harmonic wave extractor respectively, described harmonic wave extractor, central processing unit, PWM baud generator is connected successively with inverter, the charging circuit also comprising timesharing energy storage controller and connect successively, energy-storage travelling wave tube and booster circuit, described charging circuit connects load-side transmission line by the first time-shared switch, described booster circuit is in parallel with DC source by the second time-shared switch, described timesharing energy storage controller connects the first time-shared switch and the second time-shared switch respectively.
Reduction voltage circuit is provided with between described first time-shared switch and charging circuit.
Also comprise the voltage sensor be parallel in DC source, described voltage sensor connects timesharing energy storage controller.
Described energy-storage travelling wave tube is batteries or super capacitor group.
Described central processing unit and timesharing energy storage controller are connected with data storage respectively.
Described central processing unit and timesharing energy storage controller are dsp processor.
Described timesharing energy storage controller connects energy-storage travelling wave tube by voltage sensor.
Also comprise housing, this outdoor type electric power active filter is installed in housing by screw, is provided with Air cooler and louvre in described housing.
Compared with prior art, the utility model has the following advantages:
1) in elimination system, can also timesharing energy storage be carried out while harmonic wave, absorb electric energy in the low power consumption phase from electrical network, stored by energy-storage system, discharge for compensation arrangement DC side in peak times of power consumption.Thus peak-valley difference between eliminating round the clock, power equipment can be used more effectively.
2) in the electric power system that distributed power source permeability is higher, by the discharge and recharge of energy-storage system, controlling and adjustment can be carried out to distributed power source power output, the problem that the uncontrollable and power fluctuation of better solution distributed power source is larger, promote the application of regenerative resource and the popularization of distributed generation technology, reduce the consumption to conventional energy resource.
3) adopt housing console mode integral structure, being applied to open air, is outdoor type equipment, have easy for installation, cost is very low, repair and maintenance advantage easily, configures LCDs and control button simultaneously, operation is directly perceived, and flexible configuration is changeable.
Accompanying drawing explanation
Fig. 1 is the utility model general structure schematic diagram.
In figure: 1, DC source, 2, inverter, 3, current transformer, 4, harmonic wave extractor, 5, central processing unit, 6, PWM baud generator, 7, timesharing energy storage controller, 8, charging circuit, 9, energy-storage travelling wave tube, 10, booster circuit, 11, reduction voltage circuit, the 12, first time-shared switch, the 13, second time-shared switch, 14, electrical network, 15, load.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
As shown in Figure 1, a kind of outdoor type electric power active filter two parts module respectively possessing timesharing energy-storage function, a part is harmonic carcellation module, a part is timesharing energy-storage module, harmonic carcellation module comprises DC source 1, inverter 2, current transformer 3, harmonic wave extractor 4, central processing unit 5 and PWM baud generator 6, DC source 1 connects inverter 2, inverter 2 is connected to transmission line between electrical network 14 and load 15, current transformer 3 connects load 15 and harmonic wave extractor 4 respectively, harmonic wave extractor 4, central processing unit 5, PWM baud generator 6 is connected successively with inverter 2, the charging circuit 8 that timesharing energy-storage module comprises timesharing energy storage controller 7 and connects successively, energy-storage travelling wave tube 9 and booster circuit 10, charging circuit 8 connects load-side transmission line by the first time-shared switch 12, booster circuit 10 is in parallel with DC source 1 by the second time-shared switch 13, timesharing energy storage controller 7 connects the first time-shared switch 12 and the second time-shared switch 13 respectively.Reduction voltage circuit 11 is provided with between first time-shared switch 12 and charging circuit 8.Above booster circuit 10, reduction voltage circuit 11, inverter 2 etc. are the circuit structure of prior art.
Wherein, central processing unit 5 and timesharing energy storage controller 7 are dsp processor, can long-time steady operation and data-handling efficiency is good.Central processing unit 5 and timesharing energy storage controller 7 are connected with data storage respectively, and data storage saves historical data, and is convenient to transfer of data during follow-up connection host computer.Inverter 2 adopts the three-phase full-bridge inverting circuit be made up of IGBT (InsulatedGateBipolarTransistor, insulated gate bipolar transistor).
This outdoor type electric power active filter is installed in housing by screw, is provided with Air cooler and louvre in housing, and thermal diffusivity is good.
This device can compensate the harmonic wave that load-side nonlinear-load produces, and improving the system side quality of power supply, is the generation that owner avoids electric power to impose a fine.Load current is detected by current transformer 3, after analog-to-digital conversion, harmonic wave extractor 4 extracts the harmonic components in load current, central processing unit 5 sends harmonic compensation instruction to PWM baud generator 6 according to harmonic components, make inverter 2 produce the contrary electric current in and harmonic components equal and opposite in direction, direction and inject electrical network 14, reach the object of filtering.
In elimination system, can also timesharing energy storage be carried out while harmonic wave, absorb electric energy in the low power consumption phase from electrical network 14, be stored by timesharing energy-storage module, discharge for harmonic carcellation module DC side in peak times of power consumption.Thus peak-valley difference between eliminating round the clock, power equipment can be used more effectively.In addition in the electric power system that distributed power source permeability is higher, by the discharge and recharge of timesharing energy-storage module, controlling and adjustment can be carried out to distributed power source power output, the problem that the uncontrollable and power fluctuation of better solution distributed power source is larger, promote the application of regenerative resource and the popularization of distributed generation technology, reduce the consumption to conventional energy resource.
Can adopt in timesharing energy-storage module by the energy-storage travelling wave tube such as batteries or super capacitor 9, and control energy storage, release by timesharing energy storage controller 7, timesharing energy storage controller 7 connects energy-storage travelling wave tube 9 by voltage sensor, therefore can the voltage status of Real-Time Monitoring energy-storage travelling wave tube 9.The effect of energy-storage system is peak load shifting, when low power consumption, opens the first time-shared switch 12 and closes the second time-shared switch 13, electricity is stored, during peak of power consumption, closes the first time-shared switch 12 and open the second time-shared switch 13, again electricity is seen off, reach the object of balancing electric power load.Therefore, adopt timesharing energy-storage module can save comprehensive electric cost, absorb electric energy when low cost, discharge when peak, obtain the economic interests that electricity price between peak and valley brings.
Secondly, the foundation of timesharing energy-storage module DC voltage when harmonic carcellation module starts also can play a significant role, thus simplifies the startup of compensation arrangement, is conducive to the stable operation of compensation arrangement.
In DC source 1, be parallel with voltage sensor, voltage sensor connects timesharing energy storage controller 7, and whether timesharing energy storage controller 7 Real-Time Monitoring DC source 1 is normally run simultaneously.Therefore, timesharing energy-storage module, when harmonic carcellation module DC bus capacitor or DC source 1 fault, opens the second time-shared switch 13, temporarily for harmonic carcellation module provides direct voltage to support, can improve system protection redundancy.

Claims (8)

1. one kind possesses the outdoor type electric power active filter of timesharing energy-storage function, comprise DC source (1), inverter (2), current transformer (3), harmonic wave extractor (4), central processing unit (5) and PWM baud generator (6), described DC source (1) connects inverter (2), described inverter (2) is connected to transmission line between electrical network (14) and load (15), described current transformer (3) connects load (15) and harmonic wave extractor (4) respectively, described harmonic wave extractor (4), central processing unit (5), PWM baud generator (6) is connected successively with inverter (2), it is characterized in that, the charging circuit (8) also comprising timesharing energy storage controller (7) and connect successively, energy-storage travelling wave tube (9) and booster circuit (10), described charging circuit (8) connects load-side transmission line by the first time-shared switch (12), described booster circuit (10) is in parallel with DC source (1) by the second time-shared switch (13), described timesharing energy storage controller (7) connects the first time-shared switch (12) and the second time-shared switch (13) respectively.
2. a kind of outdoor type electric power active filter possessing timesharing energy-storage function according to claim 1, is characterized in that, is provided with reduction voltage circuit (11) between described first time-shared switch (12) and charging circuit (8).
3. a kind of outdoor type electric power active filter possessing timesharing energy-storage function according to claim 1, it is characterized in that, also comprise the voltage sensor be parallel in DC source (1), described voltage sensor connects timesharing energy storage controller (7).
4. a kind of outdoor type electric power active filter possessing timesharing energy-storage function according to claim 1, is characterized in that, described energy-storage travelling wave tube (9) is batteries or super capacitor group.
5. a kind of outdoor type electric power active filter possessing timesharing energy-storage function according to claim 1, is characterized in that, described central processing unit (5) and timesharing energy storage controller (7) are connected with data storage respectively.
6. a kind of outdoor type electric power active filter possessing timesharing energy-storage function according to claim 1, is characterized in that, described central processing unit (5) and timesharing energy storage controller (7) are dsp processor.
7. a kind of outdoor type electric power active filter possessing timesharing energy-storage function according to claim 1, is characterized in that, described timesharing energy storage controller (7) connects energy-storage travelling wave tube (9) by voltage sensor.
8. a kind of outdoor type electric power active filter possessing timesharing energy-storage function according to claim 1, it is characterized in that, also comprise housing, this outdoor type electric power active filter is installed in housing by screw, is provided with Air cooler and louvre in described housing.
CN201520544400.9U 2015-07-24 2015-07-24 Outdoor type active power filter who possesses timesharing energy storage function Active CN204928143U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374481A (en) * 2015-07-24 2017-02-01 利思电气(上海)有限公司 Outdoor power active filtering device with time-sharing energy storage function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374481A (en) * 2015-07-24 2017-02-01 利思电气(上海)有限公司 Outdoor power active filtering device with time-sharing energy storage function

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