CN205863934U - Multiplexed-capacitor group switching module - Google Patents
Multiplexed-capacitor group switching module Download PDFInfo
- Publication number
- CN205863934U CN205863934U CN201620632713.4U CN201620632713U CN205863934U CN 205863934 U CN205863934 U CN 205863934U CN 201620632713 U CN201620632713 U CN 201620632713U CN 205863934 U CN205863934 U CN 205863934U
- Authority
- CN
- China
- Prior art keywords
- phase
- capacitor
- gate
- multiplexed
- controlled switch
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 claims description 25
- 230000010363 phase shift Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 11
- 238000005457 optimization Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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
- 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
Landscapes
- Control Of Electrical Variables (AREA)
Abstract
This utility model relates to a kind of multiplexed-capacitor group switching module, including 3 capacitors C1, C2, C3,8 gate-controlled switches K1, K2, K3, K4, K5, K6, K7, K8, controller and driving modulate circuit.This utility model is by controlling the action of different gate-controlled switch, the capacitor making varying number and capacity access between the phase zero of three-phase alternating current or mutually mutually between, if between the phase zero of capacitor incoming transport electricity, then can compensate the reactive power of system, if between the phase phase of capacitor incoming transport electricity, then can be with the watt current of transfer system, the problem solving system three-phase current unbalance.Therefore this module both can be by the reactive current in compensation system, the reactive loss in reduction system；Three-phase watt current can also be made to reach balance, it is achieved power optimization and energy-saving and cost-reducing purpose by alternate transfer watt current.
Description
Technical field
This utility model relates to a kind of multiplexed-capacitor group switching module optimizing in device for three phase power.
Background technology
In the town and country power distribution network of China, the main distribution system using three-phase four-wire system.Owing to user side also exists greatly
The single-phase burden with power of amount and load or burden without work, and electricity consumption does not have synchronism, therefore, on the one hand makes the reactive current in circuit
Increase, cause reactive loss to increase；On the other hand make Three-Phase Distribution Transformers be in asymmetric running status, produce substantial amounts of
Negative-sequence current and zero-sequence current, these negative-sequence currents and zero-sequence current meeting severe contamination electrical network, the power being greatly increased electrical network damages
Consumption, increases the loss of transformator, reduces exerting oneself of transformator, brings threat to the safe operation of power distribution network.
The mode that existing three phase power optimization device mostly uses electric capacity to divide benefit or electric capacity to mend altogether compensates reactive load, carries
High Power Factor, reduces circuit reactive loss, reaches the purpose of energy efficient.
Electric capacity point benefit mode uses star to connect three-phase capacitor module, and described star connects three-phase capacitor module and comprises A, B, C, N
Four input terminals, described A, B, C input terminal is connected with three-phase alternating current A, B, C line by three catalysts respectively, described N
Input terminal is connected with zero line.
The electric capacity mode of mending altogether uses corner connection three-phase capacitor module, described corner connection three-phase capacitor module to comprise A, B, C tri-
Individual input terminal, described A, B, C input terminal is connected with three-phase alternating current A, B, C line by three catalysts respectively.
Electric capacity divides benefit and mode of mending altogether all can only to be fallen by the reactive-current compensation in system, for asymmetric watt current
Part is the most helpless；And cannot accurately control often to put into mutually quantity and the capacity of electric capacity, for three-phase unbalance system, can go out
Existing certain mutually idle undercompensation or overcompensation, idle undercompensation makes Capacitor banks not play a role completely, circuit after compensation
In yet suffer from bigger reactive current, overcompensation then will to system carry reactive current, send idle meeting to make in large quantities
Become system loss to increase, make the degree of unbalancedness of electric current become much larger.
The weak point that this utility model optimizes existing for device for above-mentioned three phase power improves, and devises one
Multiplexed-capacitor group switching module, this module is made up of three capacitors and multiple gate-controlled switch, different controlled by controlling
The action of switch, makes the capacitor of varying number and capacity access between the phase zero of three-phase alternating current or between phase, if electric capacity
Between the phase zero of device incoming transport electricity, then can compensate the reactive power of system, if between the phase phase of capacitor incoming transport electricity,
Then can be with the watt current of transfer system, the problem solving system three-phase current unbalance.Therefore this module both can be by mending
Repay the reactive current in system, the reactive loss in reduction system；Three-phase can also be made to have by alternate transfer watt current
Merit electric current reaches balance, it is achieved power optimization and energy-saving and cost-reducing purpose.
Summary of the invention
Goal of the invention of the present utility model is to optimize device for three phase power to provide a kind of multiplexed-capacitor group switching mould
Block, this module can make the capacitor of varying number and capacity access between the phase zero of three-phase alternating current or between phase, can
Enough compensate the reactive power of system, the reactive loss in reduction system, again can the watt current of transfer system, solve system three
The unbalanced problem of phase current, it is achieved power optimization and energy-saving and cost-reducing purpose.
This utility model realizes its goal of the invention especially by following technological means: multiplexed-capacitor group switching module,
Including 3 capacitors C1, C2, C3,8 gate-controlled switches K1, K2, K3, K4, K5, K6, K7, K8, controller and driving conditioning electricity
Road；First junction point of described capacitor C1, C2 parallel connection is connected with first end of described gate-controlled switch K7, described capacitor C1,
Second junction point in parallel for C2 is connected with second end of described capacitor C3, and first end of described capacitor C3 controlled is opened with described
The first end closing K8 connects, first end of described gate-controlled switch K1, K2, K3 respectively with zero line N phase, the C of three-phase and four-line alternating current
Phase, B are connected, and the second end respectively the most all the second ends with described capacitor C3 are connected, the first of described gate-controlled switch K4, K5, K6
End is the most all connected with the C phase of three-phase and four-line alternating current, B phase, A, and the second end links together and controlled opens with described respectively
The second end closing K7, K8 connects, and described controller exports 8 roads and drives signal, after described driving modulate circuit processes, point
Do not control disconnection and the Guan Bi of described 8 gate-controlled switches.
The original state of described 8 gate-controlled switches is off-state.
The capacity of described capacitor C1, C2, C3 is equal.
Described driving modulate circuit to input driving signal process, adjust its waveform, amplitude, width, phase shift and
Repetition rate, and it is isolated, form the driving signal being suitable for gate-controlled switch.
As optional embodiment of the present utility model: described gate-controlled switch is combination switch, combination switch can enter
Row operating passing zero, the phenomenon of arcing between the surge current produced during can effectively avoiding switching and contact.
As optional embodiment of the present utility model: described gate-controlled switch is synchro switch, synchro switch can be
Make and break contact both end voltage is the moment Guan Bi of zero, thus the no-flashy-flow realizing capacitor puts into, and breaks in the moment that electric current is zero
Open, thus realize the disjunction without electric arc of make and break contact.
Relative to prior art, this utility model has the advantages that
This utility model, by controlling the action of different gate-controlled switch, makes the capacitor of varying number and capacity access three-phase
Between the phase zero of alternating current or between phase, if between the phase zero of capacitor incoming transport electricity, then the idle of system can be compensated
Power, if between the phase phase of capacitor incoming transport electricity, then can solve system three-phase current not with the watt current of transfer system
The problem of balance.Therefore this module both can be by the reactive current in compensation system, the reactive loss in reduction system；Also may be used
By in alternate transfer watt current, to make three-phase watt current reach balance, it is achieved power optimization and energy-saving and cost-reducing purpose.
Accompanying drawing explanation
Fig. 1 is the multiplexed-capacitor group switching module schematic diagram of this utility model preferred embodiment.
Detailed description of the invention
As it is shown in figure 1, the multiplexed-capacitor group switching module of the present embodiment includes 3 capacitors C1, C2, C3,8 same
Step switch K1, K2, K3, K4, K5, K6, K7, K8, controller and driving modulate circuit.The first of described capacitor C1, C2 parallel connection
Junction point is connected with first end of described synchro switch K7, the second junction point of described capacitor C1, C2 parallel connection and described electric capacity
Second end of device C3 is connected, and first end of described capacitor C3 is connected with first end of described synchro switch K8, and described synchronization is opened
The first end closing K1, K2, K3 is connected with zero line N, C phase, the B of three-phase and four-line alternating current respectively, and the second end is respectively all with described
Second end of capacitor C3 connects, first end of described synchro switch K4, K5, K6 respectively the most all with the A phase of three-phase and four-line alternating current,
B phase, C are connected, and the second end links together and the second end with described synchro switch K7, K8 is connected respectively, described controller
Export 8 roads and drive signal KDr1, KDr2, KDr3, KDr4, KDr5, KDr6, KDr7, KDr8, at described driving modulate circuit
After reason, control the action of described 8 synchro switches respectively.
The operation principle of the present embodiment is as follows:
The original state of synchro switch K1, K2, K3, K4, K5, K6, K7, K8 is off-state.
If carrying out A phase reactive-load compensation, then controller first output drive signal KDr1 and KDr6, through modulate circuit of overdriving
After process, drive synchro switch K1 and K6 Guan Bi；Then select to put into varying number and the electricity of capacity according to actual demand
Container: if desired put into capacitor C3, then controller output drive signal KDr8, after modulate circuit of overdriving processes, drives
Dynamic synchro switch K8 Guan Bi, now between capacitor C3 incoming transport A phase and zero line N；If desired capacitor C1 and C2 is put into, then
Controller output drive signal KDr7, after modulate circuit of overdriving processes, drives synchro switch K7 Guan Bi, now capacitor
Between C1 and C2 incoming transport A phase and zero line N；If desired capacitor C1, C2 and C3, then controller output drive signal are put into
KDr7 and KDr8, through overdrive modulate circuit process after, drive synchro switch K7 and K8 Guan Bi, now capacitor C1, C2 and
Between C3 incoming transport A phase and zero line N.
If carrying out B phase reactive-load compensation, then controller first output drive signal KDr1 and KDr5, through modulate circuit of overdriving
After process, drive synchro switch K1 and K5 Guan Bi；Then select to put into varying number and the electricity of capacity according to actual demand
Container: if desired put into capacitor C3, then controller output drive signal KDr8, after modulate circuit of overdriving processes, drives
Dynamic synchro switch K8 Guan Bi, now between capacitor C3 incoming transport B phase and zero line N；If desired capacitor C1 and C2 is put into, then
Controller output drive signal KDr7, after modulate circuit of overdriving processes, drives synchro switch K7 Guan Bi, now capacitor
Between C1 and C2 incoming transport B phase and zero line N；If desired capacitor C1, C2 and C3, then controller output drive signal are put into
KDr7 and KDr8, through overdrive modulate circuit process after, drive synchro switch K7 and K8 Guan Bi, now capacitor C1, C2 and
Between C3 incoming transport B phase and zero line N.
If carrying out C phase reactive-load compensation, then controller first output drive signal KDr1 and KDr4, through modulate circuit of overdriving
After process, drive synchro switch K1 and K4 Guan Bi；Then select to put into varying number and the electricity of capacity according to actual demand
Container: if desired put into capacitor C3, then controller output drive signal KDr8, after modulate circuit of overdriving processes, drives
Dynamic synchro switch K8 Guan Bi, now between capacitor C3 incoming transport C phase and zero line N；If desired capacitor C1 and C2 is put into, then
Controller output drive signal KDr7, after modulate circuit of overdriving processes, drives synchro switch K7 Guan Bi, now capacitor
Between C1 and C2 incoming transport C phase and zero line N；If desired capacitor C1, C2 and C3, then controller output drive signal are put into
KDr7 and KDr8, through overdrive modulate circuit process after, drive synchro switch K7 and K8 Guan Bi, now capacitor C1, C2 and
Between C3 incoming transport C phase and zero line N.
If carrying out three-phase current unbalance regulation, when needs shift watt current between A phase and B phase, then controller
First output drive signal KDr3 and KDr6, after modulate circuit of overdriving processes, drives synchro switch K3 and K6 Guan Bi；So
Select to put into varying number and the capacitor of capacity according to actual demand afterwards: if desired put into capacitor C3, then controller is defeated
Going out to drive signal KDr8, after modulate circuit of overdriving processes, drive synchro switch K8 Guan Bi, now capacitor C3 accesses and hands over
Between stream A phase and alternating-current B phase；If desired capacitor C1 and C2, then controller output drive signal KDr7 are put into, through tune of overdriving
After reason processing of circuit, drive synchro switch K7 Guan Bi, now between capacitor C1 and C2 incoming transport A phase with alternating-current B phase；If
Needing to put into capacitor C1, C2 and C3, then controller output drive signal KDr7 and KDr8, through overdriving, modulate circuit processes it
After, drive synchro switch K7 and K8 Guan Bi, now between capacitor C1, C2 and C3 incoming transport A phase and alternating-current B phase.
If carrying out three-phase current unbalance regulation, when needs shift watt current between B phase and C phase, then controller
First output drive signal KDr2 and KDr5, after modulate circuit of overdriving processes, drives synchro switch K2 and K5 Guan Bi；So
Select to put into varying number and the capacitor of capacity according to actual demand afterwards: if desired put into capacitor C3, then controller is defeated
Going out to drive signal KDr8, after modulate circuit of overdriving processes, drive synchro switch K8 Guan Bi, now capacitor C3 accesses and hands over
Flow B phase and exchange between C phase；If desired capacitor C1 and C2, then controller output drive signal KDr7 are put into, through tune of overdriving
After reason processing of circuit, drive synchro switch K7 Guan Bi, now capacitor C1 and C2 incoming transport B phase with exchange between C phase；If
Needing to put into capacitor C1, C2 and C3, then controller output drive signal KDr7 and KDr8, through overdriving, modulate circuit processes it
After, drive synchro switch K7 and K8 Guan Bi, now capacitor C1, C2 and C3 incoming transport B phase with exchange between C phase.
If carrying out three-phase current unbalance regulation, when needs shift watt current between A phase and C phase, then controller
First output drive signal KDr2 and KDr6, after modulate circuit of overdriving processes, drives synchro switch K2 and K6 Guan Bi；So
Select to put into varying number and the capacitor of capacity according to actual demand afterwards: if desired put into capacitor C3, then controller is defeated
Going out to drive signal KDr8, after modulate circuit of overdriving processes, drive synchro switch K8 Guan Bi, now capacitor C3 accesses and hands over
Flow A phase and exchange between C phase；If desired capacitor C1 and C2, then controller output drive signal KDr7 are put into, through tune of overdriving
After reason processing of circuit, drive synchro switch K7 Guan Bi, now capacitor C1 and C2 incoming transport A phase with exchange between C phase；If
Needing to put into capacitor C1, C2 and C3, then controller output drive signal KDr7 and KDr8, through overdriving, modulate circuit processes it
After, drive synchro switch K7 and K8 Guan Bi, now capacitor C1, C2 and C3 incoming transport A phase with exchange between C phase.
Claims (6)
1. multiplexed-capacitor group switching module, including 3 capacitors C1, C2, C3,8 gate-controlled switch K1, K2, K3, K4, K5,
K6, K7, K8, controller and driving modulate circuit, it is characterised in that: the first junction point of described capacitor C1, C2 parallel connection and institute
The first end stating gate-controlled switch K7 connects, the second junction point and the second of described capacitor C3 that described capacitor C1, C2 are in parallel
End is connected, and first end of described capacitor C3 is connected with first end of described gate-controlled switch K8, described gate-controlled switch K1, K2, K3
The first end be connected with the zero line N phase of three-phase and four-line alternating current, C phase, B respectively, the second end the most all with described capacitor C3
The second end connect, first end of described gate-controlled switch K4, K5, K6 respectively the most all with the C phase of three-phase and four-line alternating current, B phase, A phase
Connecting, the second end links together and the second end with described gate-controlled switch K7, K8 is connected respectively, and described controller exports 8 tunnels
Drive signal, after described driving modulate circuit processes, control disconnection and the Guan Bi of described 8 gate-controlled switches respectively.
Multiplexed-capacitor group switching module the most according to claim 1, it is characterised in that: described 8 gate-controlled switches
Original state is off-state.
Multiplexed-capacitor group switching module the most according to claim 1, it is characterised in that: described capacitor C1, C2, C3
Capacity equal.
Multiplexed-capacitor group switching module the most according to claim 1, it is characterised in that: described driving modulate circuit pair
The driving signal of input processes, and adjusts waveform, amplitude, width, phase shift and the repetition rate of described driving signal, and to institute
State driving signal to isolate, form the driving signal being suitable for gate-controlled switch.
Multiplexed-capacitor group switching module the most according to claim 1, it is characterised in that: described gate-controlled switch is multiple
Combination switch.
Multiplexed-capacitor group switching module the most according to claim 1, it is characterised in that: described gate-controlled switch is same
Step switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632713.4U CN205863934U (en) | 2016-06-24 | 2016-06-24 | Multiplexed-capacitor group switching module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632713.4U CN205863934U (en) | 2016-06-24 | 2016-06-24 | Multiplexed-capacitor group switching module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205863934U true CN205863934U (en) | 2017-01-04 |
Family
ID=57636183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620632713.4U Expired - Fee Related CN205863934U (en) | 2016-06-24 | 2016-06-24 | Multiplexed-capacitor group switching module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205863934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169761A (en) * | 2016-06-24 | 2016-11-30 | 广州开能电气实业有限公司 | Multiplexed-capacitor group switching module |
| CN106653434A (en) * | 2017-01-12 | 2017-05-10 | 中国计量大学 | Combination switch and accurate zero-crossing switch control method therefor |
-
2016
- 2016-06-24 CN CN201620632713.4U patent/CN205863934U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169761A (en) * | 2016-06-24 | 2016-11-30 | 广州开能电气实业有限公司 | Multiplexed-capacitor group switching module |
| CN106653434A (en) * | 2017-01-12 | 2017-05-10 | 中国计量大学 | Combination switch and accurate zero-crossing switch control method therefor |
| CN106653434B (en) * | 2017-01-12 | 2018-09-11 | 中国计量大学 | Combination switch and its accurate operating passing zero control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2664558C2 (en) | Unified power flow controller for double-circuit line | |
| CN107732954B (en) | Online input control method and device for voltage source converter unit | |
| CN205583705U (en) | Three -phase unbalanced load adjusting device's major loop | |
| CN104578117B (en) | A kind of intelligent phase-selection switch and its control circuit based on power line carrier, PLC | |
| CN104065063A (en) | Unified power flow controller suitable for multiple lines | |
| CN205863934U (en) | Multiplexed-capacitor group switching module | |
| CN107276106B (en) | Low-voltage phase selection balance system and working method thereof | |
| CN104253554A (en) | Inverter and inverter topology | |
| CN107104449A (en) | Electronic type phase inversion is switched | |
| CN106169761A (en) | Multiplexed-capacitor group switching module | |
| CN204707045U (en) | A kind of power distribution network electric power electric transformer | |
| CN205791556U (en) | Composite reactor switching module | |
| CN106026124A (en) | Reactive compensation device | |
| CN113224715A (en) | AC ice melting device and method for continuously adjusting voltage frequency of multiple branches of distribution network | |
| CN205583704U (en) | Not balancing control system of change secondary side is joined in marriage in low district of presenting a theatrical performance as last item on a programme | |
| CN206992708U (en) | A kind of low pressure phase selection bascule | |
| CN102215005A (en) | Inverter | |
| CN205429748U (en) | Angle joint capacitor bank switching module | |
| CN203607855U (en) | Reactive compensation capacitor device | |
| CN208874294U (en) | A kind of automatic switching control equipment of pair of generating set reactive compensation | |
| CN105826927A (en) | Angle joint capacitor set switching module | |
| CN208539574U (en) | A kind of three-phase imbalance regulating system phase-change switch | |
| CN103795065B (en) | A kind of transformer station's power compensating device and power compensating method | |
| CN201690371U (en) | Inverter | |
| CN207184059U (en) | A kind of low-voltage network multiterminal joint electric power-feeding structure based on IPFC |
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: 20170104 |