CN206517068U - A kind of adjustable serial compensation system - Google Patents
A kind of adjustable serial compensation system Download PDFInfo
- Publication number
- CN206517068U CN206517068U CN201720232789.2U CN201720232789U CN206517068U CN 206517068 U CN206517068 U CN 206517068U CN 201720232789 U CN201720232789 U CN 201720232789U CN 206517068 U CN206517068 U CN 206517068U
- Authority
- CN
- China
- Prior art keywords
- incoming cables
- contactor
- leading
- electric capacity
- power distribution
- Prior art date
- 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
Links
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- 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
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model is related to a kind of adjustable serial compensation system, including the capacitor bank being made up of electric capacity and contactor, the end of incoming cables of the capacitor bank is connected through discharge damper RL, isolation switch G1 with the end of incoming cables AL1 of power distribution cabinet successively, and its leading-out terminal is connected by isolation switch G2 with the leading-out terminal AL2 of power distribution cabinet；Bidirectional triode thyristor SCR, high-speed eddy switch K0 and nonlinear resistance zinc oxide FR one end are connected with the end of incoming cables for the damper RL that discharges, and its other end is connected with the leading-out terminal of capacitor bank.The utility model is simple in construction, safe and reliable, and the size of load is conveyed according to circuit, the series capacitor of circuit different capabilities can be put into, improve the quality of voltage of circuit, power transmission distance and increase conveying capacity are increased, the stability of system is improved, so as to improve the comprehensive utilization ratio of electric energy；Duplicate protection of the K0 realizations to series capacitor group is switched by bidirectional triode thyristor SCR and high-speed eddy, prevents capacitor from being damaged because of overvoltage.
Description
Technical field
The utility model is related to electric power system power distribution equipment current limiting technique field, and in particular to a kind of adjustable serial compensation
System.
Background technology
With expanding economy, with the sharp increase of electric load, the increase of net capacity, the short circuit current flow constantly increased
Impact to power system electrical equipment is increasing；Meanwhile, the connecting-disconnecting function of existing breaker be difficult to satisfaction cut-off it is huge
Big short circuit current flow.Therefore to solve this great difficult problem, the mode that current-limiting reactor is concatenated in loop is widely used in electric power
In system electrical power trans mission/distribution system.Though current-limiting reactor series connection in the loop can limiting short-circuit current intensity, reduce short circuit current flow to electricity
The impact of electrical equipment in Force system, and maintain busbar voltage, it is to avoid the further expansion of short trouble.But current limliting of connecting electricity
Anti- device but has many weak points, first, and huge reactive loss is produced in current-limiting reactor series loop and is also caused to user
Very big financial burden；Secondly, when choosing the reactance value of current-limiting reactor, often exist and meet wanting for limiting short-circuit current
After asking, the contradiction of user terminal brownout under rated current.During the long distance delivery of power system transmission and distribution network, power transmission line
Road can also produce induction reactance, the reactor in a kind of stealthy, potential concatenation user load loop substantially equally formd, together
Sample causes the reduction of user terminal voltage, while there is larger reactive loss again.
Utility model content
The purpose of this utility model is to provide a kind of adjustable serial compensation system, and the system can convey negative according to circuit
The size of lotus, puts into the capacitor of circuit different capabilities, improves the quality of voltage of circuit, increases power transmission distance and increase conveying energy
Power, improves the reliability and security of power supply, so as to improve the comprehensive utilization ratio of electric energy.
To achieve the above object, the utility model employs following technical scheme：Including bidirectional triode thyristor SCR, non-linear
Resistance zinc oxide FR, capacitor bank and electric discharge damper RL, the capacitor bank include electric capacity C1, electric capacity C2 and electric capacity C3, institute
Electric capacity C1, electric capacity C2, electric capacity C3 one end parallel connection are stated, the parallel connected end is parallel connected end a, capacitor the C1 other end and contactor K1
Series connection, electric capacity C2 connects with contactor K2, and electric capacity C3 connects with contactor K3, and contactor K1, K2, K3 other end are in parallel, should
Parallel connected end is parallel connected end b；The end of incoming cables AL1 phases that the end of incoming cables of the electric discharge damper RL passes through isolation switch G1 and power distribution cabinet
Even, its outlet termination parallel connected end a, parallel connected end b are connected by isolation switch G2 with the leading-out terminal AL2 of power distribution cabinet；It is described it is two-way can
Control silicon SCR one end is connected with the end of incoming cables for the damper RL that discharges, its another termination parallel connected end b；The nonlinear resistance oxidation
Zinc FR one end is connected with the end of incoming cables for the damper RL that discharges, and its other end is connected with parallel connected end b；The one of high-speed eddy switch K0
The end of incoming cables with the damper RL that discharges is held to be connected, its another termination parallel connected end b.
In such scheme, include isolation switch G3, the isolation switch G3 one end and the end of incoming cables AL1 phases of power distribution cabinet
Even, its other end is connected with the leading-out terminal AL2 of power distribution cabinet.
In such scheme, the electric discharge damper RL is in parallel and constituted by inductance L and resistance R, the electric discharge damper RL
End of incoming cables be connected with isolation switch G1 leading-out terminal, its leading-out terminal is connected with the end of incoming cables of capacitor bank.
In such scheme, the first electrode of the bidirectional triode thyristor SCR is connected with the end of incoming cables for the damper RL that discharges, and it the
Two electrodes are connected with contactor K1, K2, K3 leading-out terminal, and its control end is connected with the controller in power distribution cabinet.
In such scheme, the high-speed eddy switch K0 is vortex driving, vacuum extinction breaker.
In such scheme, high-speed eddy switch K0, contactor K1, contactor K2, contactor K3 by installed in
Controller in power distribution cabinet controls its on/off switch.
As shown from the above technical solution, the utility model is simple in construction, safe and reliable, and the big of load is conveyed according to circuit
It is small, the series capacitor of circuit different capabilities can be put into, improves the quality of voltage of circuit, power transmission distance and increase conveying energy is increased
Power, improves the stability of system, so as to improve the comprehensive utilization ratio of electric energy；Pass through bidirectional triode thyristor SCR and high-speed eddy
Duplicate protection of the K0 realizations to series capacitor group is switched, prevents series capacitor group from being damaged because of overvoltage.
Brief description of the drawings
Fig. 1 is electrical schematic diagram of the present utility model.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, the adjustable serial compensation system of the present embodiment, including bidirectional triode thyristor SCR, nonlinear resistance oxygen
Change zinc FR, capacitor bank and electric discharge damper RL, capacitor bank includes electric capacity C1, electric capacity C2 and electric capacity C3, electric capacity C1, electric capacity
C2, electric capacity C3 one end it is in parallel, the parallel connected end is parallel connected end a, and the capacitor C1 other end is connected with contactor K1, electric capacity C2 and
Contactor K2 connects, and electric capacity C3 connects with contactor K3, and contactor K1, K2, K3 other end are in parallel, and the parallel connected end is parallel connected end
b；Electric discharge damper RL end of incoming cables is connected by isolation switch G1 with the end of incoming cables AL1 of power distribution cabinet, its outlet termination parallel connected end
A, parallel connected end b are connected by isolation switch G2 with the leading-out terminal AL2 of power distribution cabinet；Bidirectional triode thyristor SCR one end is damped with electric discharge
Device RL end of incoming cables is connected, its another termination parallel connected end b；High-speed eddy switch K0 one end and electric discharge damper RL end of incoming cables
It is connected, its another termination parallel connected end b.
Nonlinear resistance zinc oxide FR one end is connected with the end of incoming cables for the damper RL that discharges, its other end and parallel connected end b
It is connected；Nonlinear resistance zinc oxide FR is used for the voltage of limiting capacitance device group after line short, makes the electricity at capacitor bank two ends
Press as certain value, effectively prevent capacitor bank from being damaged due to excessively stream.
The present embodiment also includes isolation switch G3, and isolation switch G3 one end is connected with the end of incoming cables AL1 of power distribution cabinet, its
The other end is connected with the leading-out terminal AL2 of power distribution cabinet.Service without power-off is realized by isolation switch G1, G2, G3, reduces maintenance repair
With the power failure range of trouble hunting, greatly improve the reliability and security of power supply, at the same avoid because interruption maintenance bring through
Ji loss.
The electric discharge damper RL is in parallel and constituted by inductance L and resistance R, electric discharge damper RL end of incoming cables and isolation switch
G1 leading-out terminal is connected, and its leading-out terminal is connected with the end of incoming cables of capacitor bank.Electric discharge damper RL is used for limiting capacitance device group
Discharge impact electric current, prevent capacitor bank from being damaged due to excessively stream, enable capacitor bank both end voltage be limited in one compared with
Low level, the capacity of such capacitor bank can greatly reduce, and its cost can be greatly reduced naturally, while the volume of equipment
Obtained effective control, can be fully effective solve the problems, such as power system long range heavy load transmission of electricity quality of voltage.
High-speed eddy switch K0, contactor K1, contactor K2, contactor K3 are connected with the controller in power distribution cabinet, lead to
Cross controller and control its on/off switch, the present embodiment, high-speed eddy switch K0 is vortex driving, vacuum extinction breaker.
Further, bidirectional triode thyristor SCR first electrode is connected with the end of incoming cables for the damper RL that discharges, its second electrode
It is connected with contactor K1, K2, K3 leading-out terminal, its control end is connected with the controller in power distribution cabinet, is controlled by controller double
To cut-offfing for controllable silicon SCR.Bidirectional triode thyristor SCR and nonlinear resistance zinc oxide FR constitutes first and protected again, high-speed eddy
Switch K0 and nonlinear resistance zinc oxide FR constitutes second and protected again, and series capacitor group can be further improved by duplicate protection
Security.
Isolation switch G1, G2, G3 are connected with the operating mechanism in power distribution cabinet, by manually controlling it to cut-off,
The isolation switch G1, G2, G3 realize component in interruption maintenance or more changing device, greatly improve the reliability and safety of power supply
Property, while avoiding because interruption maintenance brings economic loss.
Operation principle of the present utility model is as follows：
When circuit is normally run, the size of load is conveyed according to circuit, passes through the controller control contactor in power distribution cabinet
K1, contactor K2, the throwing of contactor K3 various combination are moved back, and can be put into the series capacitor of circuit different capabilities, be realized circuit
Series compensation adjustability, improves the quality of voltage of circuit, increases power transmission distance and increase conveying capacity, improves the stabilization of system
Property, so as to improve the comprehensive utilization ratio of electric energy.
When occurring short trouble, when the terminal voltage of capacitor bank exceedes nonlinear resistance zinc oxide FR conducting voltages,
Nonlinear resistance zinc oxide FR is turned on immediately, and the voltage for making capacitor bank two ends is certain value；Controller is stood in simultaneity factor
Reclosing command is sent to bidirectional triode thyristor SCR and high-speed eddy switch K0, bidirectional triode thyristor SCR is in 200us by capacitor
Group short circuit, high-speed eddy switchs K0 in 2ms by capacitor bank short circuit, after high-speed eddy switch K0 closes a floodgate, by high-speed eddy
Switch K0 and continue shorted capacitor group, realize the duplicate protection of capacitor bank.Switched by bidirectional triode thyristor SCR and high-speed eddy
K0 duplicate protection, can effectively prevent capacitor bank from being damaged due to overvoltage；After capacitor bank is protected, discharge damper RL
For limiting the discharge impact electric current to capacitor bank, prevent capacitor bank from being damaged due to excessively stream.After short trouble is cut off,
When line current returns to normal value, controller sends separating brake instruction to high-speed eddy switch K0 immediately in system, and high-speed eddy is opened
K0 separating brakes immediately are closed, series capacitor group is put into circuit operation.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, on the premise of the utility model design spirit is not departed from, and those of ordinary skill in the art are to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the protection of the utility model claims determination
In the range of.
Claims (6)
1. a kind of adjustable serial compensation system, it is characterised in that：Including bidirectional triode thyristor SCR, nonlinear resistance zinc oxide FR,
Capacitor bank and electric discharge damper RL, the capacitor bank include electric capacity C1, electric capacity C2 and electric capacity C3, the electric capacity C1, electric capacity
C2, electric capacity C3 one end it is in parallel, the parallel connected end is parallel connected end a, and the capacitor C1 other end is connected with contactor K1, electric capacity C2 and
Contactor K2 connects, and electric capacity C3 connects with contactor K3, and contactor K1, K2, K3 other end are in parallel, and the parallel connected end is parallel connected end
b；The end of incoming cables of the electric discharge damper RL is connected by isolation switch G1 with the end of incoming cables AL1 of power distribution cabinet, and its outlet is terminated simultaneously
Join end a, parallel connected end b is connected by isolation switch G2 with the leading-out terminal AL2 of power distribution cabinet；One end of the bidirectional triode thyristor SCR with
Electric discharge damper RL end of incoming cables is connected, its another termination parallel connected end b；One end of the nonlinear resistance zinc oxide FR and electric discharge
Damper RL end of incoming cables is connected, and its other end is connected with parallel connected end b；High-speed eddy switch K0 one end and electric discharge damper RL
End of incoming cables be connected, its another termination parallel connected end b.
2. adjustable serial compensation system according to claim 1, it is characterised in that：It is described also including isolation switch G3
Isolation switch G3 one end is connected with the end of incoming cables AL1 of power distribution cabinet, and its other end is connected with the leading-out terminal AL2 of power distribution cabinet.
3. adjustable serial compensation system according to claim 1, it is characterised in that：The electric discharge damper RL is by inductance
L and resistance R are in parallel composition, and the end of incoming cables of the electric discharge damper RL is connected with isolation switch G1 leading-out terminal, its leading-out terminal
It is connected with the end of incoming cables of capacitor bank.
4. adjustable serial compensation system according to claim 1, it is characterised in that：The of the bidirectional triode thyristor SCR
One electrode is connected with the end of incoming cables for the damper RL that discharges, and its second electrode is connected with contactor K1, K2, K3 leading-out terminal, and it is controlled
End processed is connected with the controller in power distribution cabinet.
5. adjustable serial compensation system according to claim 1, it is characterised in that：The high-speed eddy switch K0 is whirlpool
Stream driving, vacuum extinction breaker.
6. adjustable serial compensation system according to claim 1, it is characterised in that：The high-speed eddy switchs K0, connect
Tentaculum K1, contactor K2, contactor K3 control its on/off switch by the controller in power distribution cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720232789.2U CN206517068U (en) | 2017-03-10 | 2017-03-10 | A kind of adjustable serial compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720232789.2U CN206517068U (en) | 2017-03-10 | 2017-03-10 | A kind of adjustable serial compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206517068U true CN206517068U (en) | 2017-09-22 |
Family
ID=59870160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720232789.2U Expired - Fee Related CN206517068U (en) | 2017-03-10 | 2017-03-10 | A kind of adjustable serial compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206517068U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899023A (en) * | 2017-03-10 | 2017-06-27 | 安徽尚途电力保护设备有限公司 | A kind of adjustable serial compensation system |
| CN117498284A (en) * | 2023-10-26 | 2024-02-02 | 武汉大学 | Series compensation capacitor device based on short-circuit fault current intelligent self-driving |
-
2017
- 2017-03-10 CN CN201720232789.2U patent/CN206517068U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899023A (en) * | 2017-03-10 | 2017-06-27 | 安徽尚途电力保护设备有限公司 | A kind of adjustable serial compensation system |
| CN117498284A (en) * | 2023-10-26 | 2024-02-02 | 武汉大学 | Series compensation capacitor device based on short-circuit fault current intelligent self-driving |
| CN117498284B (en) * | 2023-10-26 | 2024-04-05 | 武汉大学 | Series compensation capacitor device based on short-circuit fault current intelligent self-driving |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105790227A (en) | Series compensation zero-loss current limiting integrated system | |
| CN106099938A (en) | A kind of high-voltage fence series compensation device | |
| CN105119299B (en) | A kind of mesohigh power network distributed serial compensation system | |
| CN105680411A (en) | DC solid state circuit breaker and broken circuit control method | |
| CN108199361A (en) | A kind of high pressure self-shield string mends current limiting system | |
| CN206517068U (en) | A kind of adjustable serial compensation system | |
| CN206332444U (en) | A kind of LC series resonances current-limiting apparatus | |
| CN205724855U (en) | A kind of series compensation zero is lost current limliting integral system | |
| CN106786435A (en) | A kind of short trouble current-limiting apparatus | |
| CN106786434A (en) | A kind of superconductive failure current limiter | |
| CN205945069U (en) | High voltage electric network cascade compensation device | |
| CN106972502A (en) | A kind of series capacitor segmented compensation device | |
| CN105958501A (en) | Adjustable series-wound compensation apparatus for high-voltage power grid | |
| CN206533122U (en) | A kind of high-voltage and current-limitation device based on current limliting zinc oxide FR | |
| CN106899023A (en) | A kind of adjustable serial compensation system | |
| CN205693360U (en) | The distributed serial of a kind of duplicate protection compensates system | |
| CN106786442A (en) | A kind of LC series resonances current-limiting apparatus | |
| CN106655132A (en) | Series compensation current-limiting integrated device | |
| CN206332445U (en) | One kind string mends current limliting integrated apparatus | |
| CN206533142U (en) | A kind of self-shield series compensation device based on high energy type fuse FU | |
| CN207200285U (en) | A kind of voltage compensating device based on segmented series capacitor | |
| CN108054741A (en) | One kind is based on multi-break high-pressure system current-limiting apparatus | |
| CN205595772U (en) | Series resonance zero loss current limiting device | |
| CN206759058U (en) | A kind of series capacitor segmented compensation device | |
| CN207664611U (en) | One kind being based on multi-break high-pressure system current-limiting apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170922 Termination date: 20210310 |