CN105633976B - A kind of electrolytic capacitor reactive power dynamic compensation circuit - Google Patents
A kind of electrolytic capacitor reactive power dynamic compensation circuit Download PDFInfo
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- CN105633976B CN105633976B CN201610134072.4A CN201610134072A CN105633976B CN 105633976 B CN105633976 B CN 105633976B CN 201610134072 A CN201610134072 A CN 201610134072A CN 105633976 B CN105633976 B CN 105633976B
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- electrolytic capacitor
- switching tube
- alternating current
- reactive power
- inductance
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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
The invention discloses a kind of electrolytic capacitor reactive power dynamic compensation circuits.The circuit passes through an inductance by the switching tube that four reverse parallel connections have diode respectively and carries out boost type (Boost) pulsewidth modulation or frequency modulation type switched charge and buck (Buck Converter) pulsewidth modulation or the control of frequency modulation type switch discharge to another electrolytic capacitor to the negative half-cycle of an electrolytic capacitor, alternating current in the positive half period of alternating current, realizes that carrying out dynamic reactive power dynamic to electrical equipment using electrolytic capacitor compensates.Solves the technical problem for carrying out reactive power dynamic compensation to AC electric equipment using electrolytic capacitor, the electrolytic capacitor reactive power dynamic compensation device made of the present invention, with small in size, the advantages that light weight and cost is low and reactive power compensation can be controlled dynamically, is the replacement technology of existing middle low power reactive power dynamic compensation circuit and device.
Description
Technical field
The present invention is that a kind of pair of alternating current and electrical equipment carry out dynamic reactive power compensation circuit, is especially a kind of electricity
Electrolysis condenser reactive power dynamic compensation circuit.
Background technique
Reactive power compensation is a universally acknowledged power-saving technology, i.e. the idle situation according to load, using electric power electricity
Container carries out switching, and then realizes reactive power compensation.But that there are volumes is big for power capacitor, weight is big and at high cost etc. lacks
Point.Compared to power capacitor, electrolytic capacitor has clear superiority.Under identical capacity conditions, the volume of electrolytic capacitor and
Price only has 1/the tens of power capacitor.If designing a kind of compensation electricity using electrolytic capacitor as compensation equipment
Container, undoubtedly reactive power dynamic compensation technical field a important breakthrough not only can satisfy the update of existing equipment, but also
It is adapted to the demand of technology development.
Summary of the invention
For the deficiency of existing reactive power dynamic compensation, the technical problem to be solved by the present invention is to provide a kind of electrolysis
Capacitor reactive power dynamic compensation circuit.The circuit has two by two reverse parallel connections in the first half cycle of alternating current positive half period
The switching tube of pole pipe passes through an inductance respectively and carries out boost type (Boost) pulsewidth modulation or frequency modulation type to an electrolytic capacitor
Switched charge control, later half period carry out buck (Buck Converter) pulsewidth modulation or the control of frequency modulation type switch discharge；
Same electricity is passed through by the switching tube that other two reverse parallel connections have diode respectively in the first half cycle of alternating current negative half-cycle
Sense carries out boost type (Boost) pulsewidth modulation or frequency modulation type switched charge to another electrolytic capacitor and controls, the later half period into
(Buck Converter) pulsewidth modulation of row buck or the control of frequency modulation type switch discharge, are realized using electrolytic capacitor to electricity consumption
Equipment carries out reactive power dynamic compensation.
The technical solution adopted by the present invention to solve the technical problems is a kind of electrolytic capacitor reactive power dynamic compensation
Circuit by AC power supply end N and A, input filter capacitor Ca, inductance L, two electrolytic capacitors C1 and C2, diode D1, D2,
D3 and D4 and switching tube V1, V2, V3 and V4 composition.V1 is to be connected in inverse parallel (to open with D1, V2 and D2, V3 and D3, V4 and D4
The drain electrode of pass pipe connects with the cathode of diode, the source electrode of switching tube connects with the anode of diode).Circuit theory of the invention
Figure as shown in Figure 1, the feeder ear A of alternating current is connected with one end of one end of input filter capacitor Ca and inductance L, inductance L's
The other end is connected with the cathode of the source electrode of switching tube V2 and V3, electrolytic capacitor C2, the other end of input filter capacitor Ca with
Feeder ear N, the switching tube V1 of alternating current are connected with the cathode of the source electrode of V4, the C1 of electrolytic capacitor, switching tube V1's and V2
Drain electrode is connected, and the drain electrode of switching tube V3 is connected with the anode of electrolytic capacitor C1, the drain electrode of switching tube V4 and electrolytic capacitor
Device C2 anode is connected.A kind of electrolytic capacitor reactive power dynamic compensation circuit works as follows, is exchanging
The 0 of electricity is arrivedIn period, switching tube V1 flows through the electric current of inductance L through diode D2 control, through diode D3 to electrolytic capacitor
C1 carries out boost type pulsewidth modulation or frequency modulation type switched charge；In alternating currentInto the π period, by switching tube V3 through inductance L
It controls electrolytic capacitor C1 and carries out buck pulsewidth modulation or frequency modulation type switch discharge, Simultaneous Switching pipe V2 conducting, through diode
D1 constitutes afterflow work, and the energy being stored in inductance L is released back into alternating current.It is arrived in the π of alternating currentIn period, switch
Pipe V2 flows through the electric current of inductance L through diode D1 control, carries out boost type pulsewidth modulation to electrolytic capacitor C2 through diode D4
Or frequency modulation type switched charge；In alternating currentInto 2 π periods, buck arteries and veins is carried out to electrolytic capacitor C2 by switching tube V4
Width modulation or frequency modulation type switch discharge, Simultaneous Switching pipe V1 conducting constitute afterflow work through diode D2, will be stored in inductance L
In energy be released back into alternating current, and then realize within the alternating current complete period to the charge and discharge control of electrolytic capacitor, reach nothing
The purpose of reactive power compensator.
By the electrolytic capacitor reactive power dynamic compensation circuit as a unit, carry out three elementary triangles or
Three-phase triangle or star electrolytic capacitor reactive power dynamic compensation circuit is made in star pattern, can be negative to three-phase alternating current
It is loaded into row reactive power dynamic compensation.
The electrolytic capacitor C1 and C2 can use common liq electrolytic capacitor or solid electrolytic capacitor.When adopting
When with solid-state capacitor, since ESR series equivalent resistance is low, the speed of charge and discharge is fast, can further improve service life and electricity
Road working efficiency.
The beneficial effects of the invention are that the first half cycle in alternating current positive half period has diode by two reverse parallel connections
Switching tube passes through an inductance respectively and fills to electrolytic capacitor progress boost type (Boost) pulsewidth modulation or frequency modulation type switch
Electric control, later half period carry out buck (Buck Converter) pulsewidth modulation or the control of frequency modulation type switch discharge；It is exchanging
The first half cycle of electric negative half-cycle passes through same inductance to another by the switching tube that other two reverse parallel connections have diode respectively
One electrolytic capacitor carries out boost type (Boost) pulsewidth modulation or the control of frequency modulation type switched charge, later half period are depressured
Formula (Buck Converter) pulsewidth modulation or the control of frequency modulation type switch discharge, it is small in size to have played electrolytic capacitor bodge
With advantage at low cost.The electrolytic capacitor reactive power dynamic compensation device made of the present invention, the simple, volume with structure
Small, the advantages that light weight and cost is low and reactive power compensation can be controlled dynamically, be existing middle low power reactive power dynamic compensation
The replacement technology of circuit and device.
Detailed description of the invention
A kind of electrolytic capacitor reactive-load dynamic compensation circuit diagram of Fig. 1
A kind of electrolytic capacitor reactive-load dynamic compensation application circuit schematic diagram of Fig. 2
Specific embodiment
The present invention is described in further details below with reference to embodiment and its attached drawing.
Fig. 2 is a kind of electrolytic capacitor reactive-load dynamic compensation application circuit schematic diagram.Fig. 2 compared with Fig. 1 increase two it is electrodeless
Property ordinary capacitor C3 and C4, since electrolytic capacitor is at working frequency higher (20KHZ-200KHZ), ESR equivalent resistance
Greatly, switching loss is big；By nonpolarity ordinary capacitor C3 and electrolytic capacitor C1 and nonpolarity ordinary capacitor C4 and electrolysis electricity
Container C2 difference is used in parallel, can play the small advantage of nonpolarity ordinary capacitor equivalent resistance ESR, single further to overcome
Big disadvantage is lost when electrolytic capacitor use.
The both ends of inductive load FZ meet the connecting pin H and M in ac input end A and N respectively, and ac input end A and N are passed through
After alternating current, inductive load FZ work, AC power factor is reduced, and electrolytic capacitor reactive power dynamic compensation circuit is opened
Beginning work, 0 in alternating current arrivesIn period, switching tube V1 flows through the electric current of inductance L through diode D2 control, through diode D3
Boost type (Boost) pulsewidth modulation or frequency modulation type switched charge work are carried out to electrolytic capacitor C1 and nonpolarity ordinary capacitor C3
Make；In alternating currentInto the π period, electrolytic capacitor C1 and nonpolarity ordinary capacitor are controlled through inductance L by switching tube V3
C3 carries out buck (Buck Converter) pulsewidth modulation or the work of frequency modulation type switch discharge, Simultaneous Switching pipe V2 conducting, warp
Diode D1 constitutes afterflow work, and the energy being stored in inductance L is discharged into alternating current.It is arrived in the π of alternating currentPeriod
Interior, switching tube V2 flows through the electric current of inductance L through diode D1 control, through diode D4 to electrolytic capacitor C2 and nonpolarity common
Capacitor C4 carries out boost type (Boost) pulsewidth modulation or the work of frequency modulation type switched charge；In alternating currentTo 2 π periods
It is interior, buck (Buck Converter) pulsewidth is carried out to electrolytic capacitor C2 and nonpolarity ordinary capacitor C4 by switching tube V4
Modulation or the work of frequency modulation type switch discharge, Simultaneous Switching pipe V1 conducting constitute afterflow work through diode D2, will be stored in inductance
Energy in L is discharged into alternating current, and then realizes the capacitor charging/discharging control that the alternating current complete period is carried out using electrolytic capacitor
System achievees the purpose that carry out reactive power dynamic compensation to electrical equipment.And then prior art can be used according to load FZ power
The variation of factor automatically controls electrolytic capacitor charge and discharge, is made and carries out reactive power dynamic benefit to alternating current or electrical equipment
The circuit repaid.
The present invention solves the technical problem for carrying out reactive power compensation to AC electric equipment using electrolytic capacitor, uses
Electrolytic capacitor reactive power dynamic compensation circuit and device made of the present invention, have small in size, and light weight and cost is low and nothing
The advantages that reactive power compensator can be controlled dynamically is the replacement skill of existing middle low power reactive power dynamic compensation circuit and device
Art.
Claims (2)
1. a kind of electrolytic capacitor reactive-load dynamic compensation circuit, it is characterised in that: the circuit is filtered by Alternating Current Power Supply end N and A, input
Wave capacitor Ca, inductance L, two electrolytic capacitors C1 and C2, diode D1, D2, D3 and D4 and switching tube V1, V2, V3 and V4 group
At；V1 is to be connected in inverse parallel with D1, V2 and D2, V3 and D3, V4 and D4；The feeder ear A and input filter capacitor of alternating current
One end of Ca is connected with one end of inductance L, the source electrode of the other end of inductance L and switching tube V2 and V3, electrolytic capacitor C2
Cathode is connected, the other end and the input terminal N of alternating current, the source electrode of switching tube V1 and V4, the electrolysis electricity of input filter capacitor Ca
The cathode of the C1 of container is connected, and switching tube V1 is connected with the drain electrode of V2, and the drain electrode of switching tube V3 is with electrolytic capacitor C1's
Anode is connected, and the drain electrode of switching tube V4 is connected with electrolytic capacitor C2 anode.
2. a kind of electrolytic capacitor reactive-load dynamic compensation circuit according to claim 1, it is characterised in that: the circuit be by
It is arrived according to what is worked as follows, 0 in alternating currentIn period, switching tube V1 flows through the electric current of inductance L through diode D2 control,
Boost type pulsewidth modulation or frequency modulation type switched charge are carried out to electrolytic capacitor C1 through diode D3；In alternating currentBy π weeks
In phase, buck pulsewidth modulation or frequency modulation type switch discharge are carried out through inductance L control electrolytic capacitor C1 by switching tube V3, simultaneously
Switching tube V2 conducting constitutes afterflow work through diode D1, the energy being stored in inductance L is released back into alternating current；It is exchanging
The π of electricity is arrivedIn period, switching tube V2 flows through the electric current of inductance L through diode D1 control, through diode D4 to electrolytic capacitor
C2 carries out boost type pulsewidth modulation or frequency modulation type switched charge；In alternating currentInto 2 π periods, by switching tube V4 to electrolysis
Capacitor C2 carries out buck pulsewidth modulation or frequency modulation type switch discharge, and Simultaneous Switching pipe V1 conducting is constituted continuous through diode D2
Work is flowed, the energy being stored in inductance L is released back into alternating current, and then realize within the alternating current complete period to electrolytic capacitor
Charge and discharge control, achieve the purpose that reactive power compensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610134072.4A CN105633976B (en) | 2016-03-08 | 2016-03-08 | A kind of electrolytic capacitor reactive power dynamic compensation circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610134072.4A CN105633976B (en) | 2016-03-08 | 2016-03-08 | A kind of electrolytic capacitor reactive power dynamic compensation circuit |
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| CN105633976A CN105633976A (en) | 2016-06-01 |
| CN105633976B true CN105633976B (en) | 2019-02-15 |
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| CN201610134072.4A Expired - Fee Related CN105633976B (en) | 2016-03-08 | 2016-03-08 | A kind of electrolytic capacitor reactive power dynamic compensation circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2730178C1 (en) * | 2020-03-27 | 2020-08-19 | Публичное акционерное общество энергетики и электрификации "Ленэнерго" (ПАО "Ленэнерго") | Control method of reactive power compensator operation mode, which is built on the basis of thyristor-switched capacitor group |
| RU2744807C1 (en) * | 2020-10-09 | 2021-03-16 | Публичное акционерное общество "Россети Ленэнерго" (ПАО "Россети Ленэнерго") | Control device for semiconductor reactive power regulator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2683964C1 (en) * | 2018-04-06 | 2019-04-03 | Акционерное общество "Энергетический институт им. Г.М. Кржижановского" (АО "ЭНИН") | Method of controlling of capacitance of controlled capacitor group and device for its implementation |
| RU2677862C1 (en) * | 2018-04-06 | 2019-01-22 | Акционерное общество "Энергетический институт им. Г.М. Кржижановского" (АО "ЭНИН") | Method of management of thyristor-switched capacitor group and device for its implementation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761129A (en) * | 2012-04-30 | 2012-10-31 | 李香龙 | Automatic power factor compensation circuit utilizing electrolytic capacitor |
| CN205791543U (en) * | 2016-03-08 | 2016-12-07 | 李香龙 | A kind of electrolysis condenser reactive power dynamic compensation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5461650A (en) * | 1977-10-26 | 1979-05-18 | Fuji Electric Co Ltd | Reactive power compensator |
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2016
- 2016-03-08 CN CN201610134072.4A patent/CN105633976B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761129A (en) * | 2012-04-30 | 2012-10-31 | 李香龙 | Automatic power factor compensation circuit utilizing electrolytic capacitor |
| CN205791543U (en) * | 2016-03-08 | 2016-12-07 | 李香龙 | A kind of electrolysis condenser reactive power dynamic compensation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2730178C1 (en) * | 2020-03-27 | 2020-08-19 | Публичное акционерное общество энергетики и электрификации "Ленэнерго" (ПАО "Ленэнерго") | Control method of reactive power compensator operation mode, which is built on the basis of thyristor-switched capacitor group |
| RU2744807C1 (en) * | 2020-10-09 | 2021-03-16 | Публичное акционерное общество "Россети Ленэнерго" (ПАО "Россети Ленэнерго") | Control device for semiconductor reactive power regulator |
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| CN105633976A (en) | 2016-06-01 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Wei Inventor after: Li Xianglong Inventor after: Li Qiying Inventor after: Ren Zaifeng Inventor before: Li Xianglong Inventor before: Zhang Wei Inventor before: Li Qiying Inventor before: Ren Zaifeng |
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| TA01 | Transfer of patent application right | ||
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Effective date of registration: 20181228 Address after: No. 5340 Xiping Road, Beichen District, Tianjin 300401 Applicant after: Hebei University of Technology Address before: 300193 Xingtai Xili 1-1-301 Lingyin Road, Nankai District, Tianjin Applicant before: Li Xianglong |
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Granted publication date: 20190215 Termination date: 20200308 |