CN205693364U - A kind of pressure-controlled dynamic reactive compensation device - Google Patents
A kind of pressure-controlled dynamic reactive compensation device Download PDFInfo
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- CN205693364U CN205693364U CN201620543362.XU CN201620543362U CN205693364U CN 205693364 U CN205693364 U CN 205693364U CN 201620543362 U CN201620543362 U CN 201620543362U CN 205693364 U CN205693364 U CN 205693364U
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- voltage
- controlled actuator
- control system
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- current transformer
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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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Abstract
This utility model relates to a kind of pressure-controlled dynamic reactive compensation device, include the electronic devices and components of Control System of Microcomputer module and connection thereof, Control System of Microcomputer module is signals collecting and the output control centre of whole device, power supply grid is terminated before A.C. contactor, rear end concatenation current transformer, terminates A.C. contactor before current transformer, rear end concatenates voltage-controlled actuator, current transformer, rear end tandem reactor is terminated before voltage-controlled actuator；After overvoltage protection device, Capacitor banks, discharge coil three's parallel connection, one end is serially connected with the rear end of reactor, one end ground connection; Control System of Microcomputer module is by regulating the output voltage of voltage-controlled actuator; control the output capacity of Capacitor banks, such design, can Real-time and Dynamic shock-free regulation power system reactive power; compensation precision is high; without overvoltage with shove in compensation process, low-loss and long-life, grid line loss can be greatly lowered; improve the quality of power supply, increase the economic benefit of power supply enterprise.
Description
Technical field
This utility model relates to electrical network and joins the technical field of power transmission system, especially a kind of dynamic reactive compensation device.
Background technology
The reactive-load compensation equipment that China is conventional at present is still mechanical type shunt reactor, switched capacitor, and this mode is adjusted
Joint is discontinuous, and Reactive-power control means fall behind, and in the transient process of capacitor switching, generation is shoved and overvoltage phenomenon, the action frequency
Affect switch life and system stability time high, even affect the safe and stable operation of other equipment.These are difficult to meet system
The demand of Quick reactive-load compensation during method of operation Rapid Variable Design.There are some enterprises to use SVC type reactive power compensator, can play relatively
Good compensation effect, but voltage height is born at itself and IGCT two ends, and caloric value is many, the most breakdown, and structure is complicated, is lost the biggest.
The harmonic wave that the phase-shifting trigger of IGCT controls to produce simultaneously flows into electrical network, causes second harmonic and pollutes.Also have on market
Enterprise uses SVG to carry out dynamic passive compensation, but compensation capacity is typically difficult to accomplish very greatly, and the most a lot of manufacturer production
SVG product technology is not overripened stable, and cost is the highest.Therefore, prior art haves much room for improvement and improves.
Utility model content
In place of the purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of pressure-controlled dynamic reactive
Compensation device, improves reactive-load compensation regulating measure, solves the overvoltage during capacitor switching and the technical problem such as shove, it is achieved
The shock-free dynamic regulation of system, improves compensation precision, makes power factor optimal, reduces equipment cost and own loss, simultaneously
Extend capacitor service life.
This utility model solves technical problem and be the technical scheme is that a kind of pressure-controlled dynamic reactive compensation device,
Including the electronic devices and components of Control System of Microcomputer module and connection thereof, Control System of Microcomputer module is the signal number of whole device
According to gathering and output control centre, it is characterised in that: the electronic devices and components of described connection include: A.C. contactor, electric current are mutual
Sensor, voltage-controlled actuator, reactor, overvoltage protection device, Capacitor banks, discharge coil；Wherein, before A.C. contactor, termination supplies
Electricity electrical network, rear end concatenation current transformer, terminate A.C. contactor before current transformer, rear end concatenates voltage-controlled actuator, voltage-controlled
Current transformer, rear end tandem reactor is terminated before actuator；Overvoltage protection device, Capacitor banks, discharge coil three parallel connection
After, its one end is serially connected with the rear end of reactor, other end ground connection, and Control System of Microcomputer module is by regulating the defeated of voltage-controlled actuator
Go out voltage, control the output capacity of Capacitor banks.
Further, described Control System of Microcomputer module is controlled single by known data acquisition unit, Digital Signal Processing
Unit, data storage cell, output control unit, communication unit, man-machine interaction unit form.
It is mutual that the data acquisition unit of described Control System of Microcomputer module gathers switch cabinet bus voltage, inlet wire current and electric current
The current signal of sensor, output control unit then connects voltage-controlled actuator, by the output voltage of the voltage-controlled actuator of regulation
Control the output capacity of Capacitor banks.Described voltage-controlled actuator is formed by by load regulation switch and adjustable transformer.
A kind of pressure-controlled dynamic reactive compensation device of the present utility model provides the benefit that: can tracking system real-time dynamic
Power factor, it is not necessary to grouping switching electric capacity, when adjusting reactive power, capacitor is always on, and compensation precision is high, own loss
Little, low cost, capacitor life-span is long, and is substantially not present overvoltage and the problem such as shove during capacitor switching, it is achieved system
Shock-free dynamic regulation.
Accompanying drawing explanation
Fig. 1 is attachment structure schematic diagram of the present utility model.
Description of reference numerals: 10. A.C. contactor 11. current transformer 12.. Control System of Microcomputer module
13. voltage-controlled actuator 14. reactor 15. overvoltage protection device 16. Capacitor banks 17. discharge coils.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
Refering to Fig. 1, the composition of its pressure-controlled dynamic reactive compensation device provided for this utility model better embodiment
Schematic diagram, pressure-controlled dynamic reactive compensation device includes A.C. contactor 10, current transformer 11, Control System of Microcomputer module
12, voltage-controlled actuator 13, reactor 14, overvoltage protection device 15, Capacitor banks 16, discharge coil 17.
The front termination power supply grid of A.C. contactor 10, its rear end concatenation current transformer 11.A.C. contactor 10 controls
The operation of whole pressure-controlled dynamic reactive compensation device and stopping.After A.C. contactor 10 is connected, pressure-controlled dynamic reactive is mended
Repaying device and be connected to electrical network, after A.C. contactor 10 disconnects, pressure-controlled dynamic reactive compensation device and electrical network depart from.
Terminating A.C. contactor 10 before current transformer 11, rear end concatenates voltage-controlled actuator 13.Current transformer 11 will very
Big current signal is converted to the current signal scope that Control System of Microcomputer module 12 can gather by a certain percentage.
Current transformer 11, rear end tandem reactor 14 is terminated before voltage-controlled actuator 13.Control System of Microcomputer module 12 exists
On the premise of ensureing that system voltage is stable, by regulating the output voltage of voltage-controlled actuator 13, thus change reactor 14, electric capacity
The voltage at device group 16 two ends.The compensation capacity of Capacitor banks 16, according to Q=2 π fCU principle, the C value of capacitor is constant, by changing
The voltage at variodenser two ends thus change the output of reactive power.The precision and the degree of depth that change voltage-regulation i.e. can change electricity
The degree of regulation of container and the degree of depth.Simultaneously as the output voltage of voltage-controlled actuator 13 can ensure that Capacitor banks 16 is long-term at volume
Determine below voltage to work, without switching overvoltage and problem of shoving, greatly extend the service life of Capacitor banks 16.
Terminating voltage-controlled actuator 13 before reactor 14, voltage protector 15, Capacitor banks 16, discharge coil are taken in rear end
17.Reactor 14, for ensureing certain reactance Rate, can eliminate and suppress the harmonic wave of some frequency range.
The switching overvoltage that overvoltage protection device 15 causes for the atmospheric over-voltage and switching manipulation eliminating power system,
Intrasystem arc light and the resonance overvoltage insulation harm to Capacitor banks 16 can be reduced simultaneously, extend making of Capacitor banks 16
Use the life-span.
Overvoltage protection device 15, Capacitor banks 16, discharge coil 17 are in parallel, termination reactor 14 rear end, one end ground connection.
The electric current that Capacitor banks 16 produces after powered up is that capacity current, capacity current and inductance current are in opposite direction.Power train togetherness
Property idle compared with when causing greatly power factor low, capacity current that Capacitor banks 16 provides, the idle electricity of perception of system can be compensated
Stream, thus reach the purpose of reactive-load compensation.
Discharge coil 17 is parallel to Capacitor banks 16 two ends.When after Capacitor banks 16 power-off, because capacitor is energy-storage travelling wave tube,
Its storing electricity is difficult to quickly dissipate, and discharge coil 17, in parallel in Capacitor banks 16 two ends, goes into a discharge loop, from
And quickly the electricity that Capacitor banks 16 stores is discharged.
Control System of Microcomputer module 12 is the signal collecting and controlling center of whole pressure-controlled dynamic reactive compensation device.Micro-
Machine control system module 12 is by known data acquisition unit, Digital Signal Processing control unit, data storage cell, output control
Unit processed, communication unit, man-machine interaction unit etc. form.Control System of Microcomputer module 12 by gather switch cabinet bus voltage,
Inlet wire current summation current transformer 11 current signal, calculates the power factor size of current power system, voltage condition, currently electricity
The operation conditions of container group 16, then according to nine-zone diagram algorithm, controls the output voltage of voltage-controlled actuator 13, thus controls electric capacity
The output capacity of device group 16, and ensure that output voltage and power factor are all in an optimum interval.Control System of Microcomputer module
12 also provide for the functions such as human-computer interaction interface, data communication.
Voltage-controlled actuator 13 is mainly formed by by load regulation switch and adjustable transformer.Overvoltage protection device 15 is by A phase, B
Phase, three discharging gaps of C phase concatenate one group of group zinc oxide valve plate respectively, and composition asterism connects, and concatenates at central point simultaneously again
One group of ground phase oxidation zinc valve block, forms the combination overvoltage protector of four wye connections.Capacitor banks 16 is by a number of
Capacitor is according to the requirement of user's reality, and combination is formed by connecting.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (4)
1. a pressure-controlled dynamic reactive compensation device, includes the electronic devices and components of Control System of Microcomputer module and connection thereof,
Control System of Microcomputer module is signal data acquisition and the output control centre of whole device, it is characterised in that: described connection
Electronic devices and components include: A.C. contactor, current transformer, voltage-controlled actuator, reactor, overvoltage protection device, capacitor
Group, discharge coil；Wherein, terminate power supply grid, rear end concatenation current transformer before A.C. contactor, terminate before current transformer
A.C. contactor, rear end concatenates voltage-controlled actuator, terminates current transformer, rear end tandem reactor before voltage-controlled actuator；Cross electricity
After pressure protector, Capacitor banks, discharge coil three's parallel connection, its one end is serially connected with the rear end of reactor, other end ground connection, microcomputer
Control system module, by regulating the output voltage of voltage-controlled actuator, controls the output capacity of Capacitor banks.
Reactive power compensator the most according to claim 1, it is characterised in that described Control System of Microcomputer module is by data acquisition
Collection unit, Digital Signal Processing control unit, data storage cell, output control unit, communication unit, man-machine interaction unit group
Become.
Reactive power compensator the most according to claim 2, it is characterised in that the data acquisition of described Control System of Microcomputer module
Collection unit gathers switch cabinet bus voltage, the current signal of inlet wire current summation current transformer, and output control unit then connects
Voltage-controlled actuator, controls the output capacity of Capacitor banks by regulating the output voltage of voltage-controlled actuator.
Reactive power compensator the most according to claim 3, it is characterised in that described voltage-controlled actuator is by there being load regulation switch
Form with adjustable transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620543362.XU CN205693364U (en) | 2016-06-07 | 2016-06-07 | A kind of pressure-controlled dynamic reactive compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620543362.XU CN205693364U (en) | 2016-06-07 | 2016-06-07 | A kind of pressure-controlled dynamic reactive compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205693364U true CN205693364U (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620543362.XU Expired - Fee Related CN205693364U (en) | 2016-06-07 | 2016-06-07 | A kind of pressure-controlled dynamic reactive compensation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394794A (en) * | 2017-07-26 | 2017-11-24 | 思源电气股份有限公司 | Voltage-controlled type imaginary power automatic compensation system and method |
-
2016
- 2016-06-07 CN CN201620543362.XU patent/CN205693364U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394794A (en) * | 2017-07-26 | 2017-11-24 | 思源电气股份有限公司 | Voltage-controlled type imaginary power automatic compensation system and method |
| CN107394794B (en) * | 2017-07-26 | 2023-12-19 | 上海思源光电有限公司 | Voltage-controlled reactive power automatic compensation system and method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20190607 |