CN206041510U - Intelligence electric capacitance device and reactive compensation system - Google Patents
Intelligence electric capacitance device and reactive compensation system Download PDFInfo
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- CN206041510U CN206041510U CN201621101780.XU CN201621101780U CN206041510U CN 206041510 U CN206041510 U CN 206041510U CN 201621101780 U CN201621101780 U CN 201621101780U CN 206041510 U CN206041510 U CN 206041510U
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- intelligent electric
- electric power
- capacitive means
- fling
- control circuit
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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 application discloses intelligence electric capacitance device and reactive compensation system, the device include circuit breaker, on -off switch, power capacitor and control circuit, wherein, the first end of circuit breaker is connected to the low pressure generating line, and the second end is connected on -off switch's first end, on -off switch's second end is connected to power capacitor, on -off switch still with control circuit connects, control circuit is used for the basis the state control of low pressure generating line on -off switch opening or closing, utilizes power capacitor is right the low pressure generating line carries out reactive compensation. The application provides an above -mentioned intelligence electric capacitance device and reactive compensation system has energy -conservation, integrates, miniaturized and simple to operate's advantage, and the wiring is simple and easy, and the dilatation is convenient, maintains simply, improves the reliability of operation.
Description
Technical field
This utility model belongs to technical field of electric equipment, more particularly, it relates to a kind of intelligent electric power capacitive means and
Reactive compensation system.
Background technology
In order that power grid security, rationally high-quality, operation, reactive-load compensation plays an important role, in the installation of distribution low-pressure side
The reliable reactive power compensator of high-quality, it is possible to increase the power factor of electrical network, reduces the loss of transformator and conveying circuit, it is ensured that
Grid supply quality.
In general, low-voltage reactive compensator is by idle compensating control, low voltage power capacitor, fuse, contact
The loose mail such as device and thermorelay is constituted, exist in operation switching easily produce shove, A.C. contactor operation has noise and can
By the low shortcoming of property, and wiring is complicated, it is big to take up room, and safeguards inconvenient.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of intelligent electric power capacitive means and reactive-load compensation system
System, has the advantages that energy-conservation, integrated, miniaturization and easy for installation, and wiring is simple, and dilatation is convenient, safeguards simple, improves operation
Reliability.
This utility model provide a kind of intelligent electric power capacitive means, including chopper, fling-cut switch, power capacitor and
Control circuit；
Wherein, the first end of the chopper is connected to low-voltage bus bar, and the second end connects the first end of the fling-cut switch；
Second end of the fling-cut switch is connected to the power capacitor；
The fling-cut switch is also connected with the control circuit, and the control circuit is for the shape according to the low-voltage bus bar
State controls being turned on and off for the fling-cut switch, carries out reactive-load compensation using the power capacitor to the low-voltage bus bar.
Preferably, in above-mentioned intelligent electric power capacitive means, the quantity of the power capacitor is three, and described in three
It is connected with the three of the low-voltage bus bar after power capacitor is end to end respectively.
Preferably, in above-mentioned intelligent electric power capacitive means, the quantity of the fling-cut switch is two, and connects institute respectively
State any biphase in the three-phase of low-voltage bus bar.
Preferably, in above-mentioned intelligent electric power capacitive means, the control circuit includes first interface, the first interface
The low-voltage bus bar is connected to by current transducer.
Preferably, in above-mentioned intelligent electric power capacitive means, the control circuit also includes second interface, and described second connects
Mouth is used for being connected to other intelligent electric power capacitive means.
Preferably, in above-mentioned intelligent electric power capacitive means, also including display circuit, for showing current/voltage value, having
Temperature parameter in work(power, reactive power, power factor, total harmonic distortion and capacitance present device.
Preferably, in above-mentioned intelligent electric power capacitive means, also include the warning piece being connected with the control circuit, use
In when over-pressed, under-voltage, phase shortage, harmonic wave transfinite or temperature exceed predetermined threshold when reported to the police.
Preferably, in above-mentioned intelligent electric power capacitive means, the control circuit include single-chip microcomputer and respectively with it is described
The current sample part of single-chip microcomputer connection, voltage transformer, signal feedback element, temperature sensor, communication interface and electric capacity are thrown
Cut control unit.
Preferably, it is in above-mentioned intelligent electric power capacitive means, also electric with the electric power including the fling-cut switch is connected to
Reactor between container.
A kind of reactive compensation system that this utility model is provided, including multiple any one intelligent electric power electric capacity as above
Device, multiple intelligent electric power capacitive means are connected with low-voltage bus bar after being connected with each other.
From above-mentioned technical proposal as can be seen that intelligent electric power capacitive means provided by the utility model and reactive-load compensation system
System, as the intelligent electric power capacitive means include chopper, fling-cut switch, power capacitor and control circuit；Wherein, it is described disconnected
The first end of road device is connected to low-voltage bus bar, and the second end connects the first end of the fling-cut switch；The second of the fling-cut switch
End is connected to the power capacitor；The fling-cut switch is also connected with the control circuit, and the control circuit is used for basis
The state of the low-voltage bus bar controls being turned on and off for the fling-cut switch, female to the low pressure using the power capacitor
Line carries out reactive-load compensation, therefore has the advantages that energy-conservation, integrated, miniaturization and easy for installation, and wiring is simple, and dilatation is convenient,
Safeguard simple, improve reliability of operation.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing for providing.
The schematic diagram of the first intelligent electric power capacitive means that Fig. 1 is provided for the embodiment of the present application；
Fig. 2 is the schematic diagram of two intelligent electric power capacitive means combined runnings；
The composition schematic diagram of the control circuit of the 8th kind of intelligent electric power capacitive means that Fig. 3 is provided for the embodiment of the present application.
Specific embodiment
Core concept of the present utility model is to provide a kind of intelligent electric power capacitive means and reactive compensation system, with section
Energy, integrated, miniaturization and advantage easy for installation, wiring are simple, and dilatation is convenient, safeguard simple, raising reliability of operation.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
The first intelligent electric power capacitive means that the embodiment of the present application is provided are as shown in figure 1, Fig. 1 is carried for the embodiment of the present application
For the first intelligent electric power capacitive means schematic diagram.The device includes chopper 1, fling-cut switch 2,3 and of power capacitor
Control circuit 4；
Wherein, the first end of the chopper 1 is connected to low-voltage bus bar 5, and the second end connects the first of the fling-cut switch 2
End, it should be noted that the chopper can be miniature circuit breaker, such as common small circuit switch, used as on and off switch
And the protection switch of power capacitor；
Second end of the fling-cut switch 2 is connected to the power capacitor 3, it should be noted that the power capacitor
For providing the reactive power consumed by inductive load, the inductive load of electric network source is reduced；
The fling-cut switch 2 is also connected with the control circuit 4, and the control circuit 4 is for according to the low-voltage bus bar 5
State control being turned on and off for the fling-cut switch 2, carry out nothing using 3 pairs of low-voltage bus bars of the power capacitor 5
Work(is compensated, it should be noted that control circuit is by being calculated a series of parameter information of current lines, including line electricity
Pressure, electric current, power factor, system reactive power etc., while information and the instruction of communication line can be received, capacitor operation shape
Instruction of state (manual/auto) etc., after comprehensive information above, to capacitor, whether switching is judged.
Each components and parts is combined by the intelligent electric power capacitive means, can also multiple stage networking with separate unit independent operating
Operation, disperses fuse, fling-cut switch and controller of installation etc. in can substituting original reactive power compensator.
From above-mentioned technical proposal as can be seen that the first intelligent electric power capacitive means for being provided of the embodiment of the present application, by
In including chopper, fling-cut switch, power capacitor and control circuit；Wherein, the first end of the chopper is connected to low pressure
Bus, the second end connect the first end of the fling-cut switch；Second end of the fling-cut switch is connected to the power capacitor；
The fling-cut switch is also connected with the control circuit, and the control circuit is for according to the state of low-voltage bus bar control institute
Being turned on and off for fling-cut switch is stated, reactive-load compensation is carried out to the low-voltage bus bar using the power capacitor, therefore is had
Energy-conservation, integrated, miniaturization and advantage easy for installation, wiring are simple, and dilatation is convenient, safeguard simple, improve the reliability of operation
Property.
Second intelligent electric power capacitive means that the embodiment of the present application is provided, in above-mentioned the first intelligent electric power capacitive means
On the basis of, also including following technical characteristic：
The quantity of the power capacitor is three, and low with described respectively after three power capacitors are end to end
The three of pressure bus are connected, that is, using delta connection, this is only a preferred version certainly, can also adopt star
Connection, here is omitted.
The third intelligent electric power capacitive means that the embodiment of the present application is provided, in above-mentioned second intelligent electric power capacitive means
On the basis of, also including following technical characteristic：
The quantity of the fling-cut switch is two, and connects any biphase in the three-phase of the low-voltage bus bar respectively.
That is, when power capacitor is using " triangle " connection, when an only phase fling-cut switch is turned on, three-phase
Capacitor does not access electrical network.Using this characteristic, only need to when switching mends capacitor altogether in biphase installation fling-cut switch,
One fling-cut switch can be reduced using the switching mode of this " two controls three ", the cost of product is significantly reduced.
The 4th kind of intelligent electric power capacitive means that the embodiment of the present application is provided, in above-mentioned the first intelligent electric power capacitive means
On the basis of, also including following technical characteristic：
The control circuit includes first interface, and it is female that the first interface is connected to the low pressure by current transducer
Line.
It should be noted that external during current transducer in the prior art, it is generally the case that one group of intelligent electric power
Capacitive means are equipped with a current transducer.And in this programme, the upper current transducer of device connection is sampled using current transducer
Current signal is converted into voltage signal by the current value of busbar current transformer secondary side, it becomes possible to by single transmission line
It is connected to intelligent electric power capacitive means.
The 5th kind of intelligent electric power capacitive means that the embodiment of the present application is provided, in above-mentioned 4th kind of intelligent electric power capacitive means
On the basis of, also including following technical characteristic：
The control circuit also includes second interface, and the second interface is used for being connected to other intelligent electric power electric capacity dresses
Put.
With reference to Fig. 2, Fig. 2 is the schematic diagram of two intelligent electric power capacitive means combined runnings, it is seen then that first intelligence in left side
Energy electric capacitor device is connected to the first interface of second intelligent electric power capacitive means on right side using its second interface 201
202, realize the collaborative work of two intelligent electric power capacitive means.In addition, the first intelligent electric power electric capacity in left side is filled from Fig. 2
The first interface that can be seen that low-voltage bus bar L1, L2 and L3 are connected to the device respectively by current transducer is put, is also connected in addition
Chopper 1QF is connected to, the chopper includes UA, UB and UC on three-phase, the wherein other end of UA is connected with fling-cut switch
The other end of 1KA1, UC is connected with another fling-cut switch 1KA2, it should be noted that this is only an example, can be with
In the other end connection fling-cut switch of UA and UC, or in the other end connection fling-cut switch of UB and UC, it is not intended to limit herein, after
Continuous by taking the figure as an example, the other end of fling-cut switch 1KA1 is connected to power capacitor, and another fling-cut switch 1KA2's is another
End is also connected to power capacitor, in such an embodiment, using three power capacitors of delta connection, realizes and two
The connection of fling-cut switch, and reactive-load compensation is carried out under the control of control circuit to low-voltage bus bar, and can be with other dresses
The use that combines is put, its particular number can be determined according to actual needs, be not intended to limit herein, in addition, also including others
Interface HL1, HL2 and HL3, can be used to be connected to other devices.
The embodiment of the present application provide the 6th kind of intelligent electric power capacitive means, it is above-mentioned the first to the 5th kind of intelligent electric power
In capacitive means on the basis of any one, also including following technical characteristic：
Also include display circuit, for showing current/voltage value, active power, reactive power, power factor, voltage harmonic
Temperature parameter in total harmonic distortion and capacitance present device, this can just allow people to get information about the parameter of current low-voltage bus bar
Situation, and the reactive-load compensation effect of device can be monitored.
The 7th kind of intelligent electric power capacitive means that the embodiment of the present application is provided, in above-mentioned 6th kind of intelligent electric power capacitive means
On the basis of, also including following technical characteristic：
Also include the warning piece being connected with the control circuit, for transfiniting or temperature when over-pressed, under-voltage, phase shortage, harmonic wave
Reported to the police when degree is more than predetermined threshold.In this case, it becomes possible to processed for abnormal conditions in time, disconnect switching
Switch, makes capacitor out of service, it is to avoid the state of affairs is more serious.
The embodiment of the present application provide the 8th kind of intelligent electric power capacitive means, it is above-mentioned the first to the 5th kind of intelligent electric power
In capacitive means on the basis of any one, also including following technical characteristic：
The composition of the control circuit of the 8th kind of intelligent electric power capacitive means provided for the embodiment of the present application with reference to Fig. 3, Fig. 3
Schematic diagram.The control circuit include single-chip microcomputer 301 and the current sample part 302 being connected with the single-chip microcomputer 301 respectively,
Voltage transformer 303, signal feedback element 304, temperature sensor 305, communication interface 306 and capacitor switching control unit 307.
In this case, signalizing activity switched capacitor of the capacitor switching control unit according to single-chip microcomputer, is to reduce wave
Electric current and overvoltage is gushed, single-chip microcomputer can be with individual-phase control, using the quick sampling of microcontroller, analytical calculation and data storage
Advantage, takes into full account that fling-cut switch is instructed (obtain electric) time for completing (closing of contact is contrary) to action from actuator,
The contact of fling-cut switch is closed in voltage zero-cross, disconnect in current over-zero, so as to avoid transient overvoltage and surge electricity
Harm of the stream to contact, reduces the abrasion of contact.Signal feedback element mainly has manual/auto control switching, and also parameter sets
Function is put, principal set up parameter has capacitance, current transformer ratio, input time delay, input interval, power factor lower limit, mistake
Magnitude of voltage, under-voltage value, harmonic voltage transfinite value, high temperature alarm value etc..Communication interface mainly completes the electric current letter of current transducer
Number receive and every intelligent electric power capacitive means communication.
The embodiment of the present application provide the 9th kind of intelligent electric power capacitive means, it is above-mentioned the first to the 5th kind of intelligent electric power
In capacitive means on the basis of any one, also including following technical characteristic：
Also include the reactor being connected between the fling-cut switch and the power capacitor.
A kind of reactive compensation system that the embodiment of the present application is provided, including multiple any one intelligent electric power electricity as above
Capacitance device, multiple intelligent electric power capacitive means are connected with low-voltage bus bar after being connected with each other.
When concrete engineering is designed, total capacitance can need to be compensated according to engineering calculation, and be rationally grouped.Appearance is compensated such as
Measure as 750kvar, the intelligent electric power capacitive means composition of 15 40kvar and 5 30kvar can be divided into.It is provided with one
For main frame, 19 is slave in addition.Each intelligent electric power capacitive means independent sample, and data are sent to main frame carry out point
Analysis, main frame send the orderly switching of control command 20 intelligent electric power capacitive means of control, reach the purpose to electric network reactive compensation.
When slave breaks down, compensation system is automatically exited from, do not affect other intelligent power capacitors to work；When main frame breaks down,
Also compensation system is automatically exited from, a main frame is automatically generated again by remaining slave.Any intelligent electric power capacitive means
Break down, whether main frame or slave, whole reactive compensation system compensates only for capacity reduction, do not affect normal operation, keep away
The situation of the whole compensation system paralysis if damaging of the controller in traditional reactive compensation system is exempted from.
In sum, the intelligent electric power capacitive means that the embodiment of the present application is provided adopt modular construction, and wiring is simple, dilatation
It is convenient, safeguard simple, using integrated technology, production hour reduces more than 60% than traditional mode, while reduce by 80% connecting line,
Reduce by 80% contact, succinct in cabinet, each device in above-mentioned reactive compensation system can be with independent operating, it is also possible to which networking is transported
OK, improve operational reliability.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use that this practicality is new
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
1. a kind of intelligent electric power capacitive means, it is characterised in that including chopper, fling-cut switch, power capacitor and control electricity
Road；
Wherein, the first end of the chopper is connected to low-voltage bus bar, and the second end connects the first end of the fling-cut switch；
Second end of the fling-cut switch is connected to the power capacitor；
The fling-cut switch is also connected with the control circuit, and the control circuit is for the state control according to the low-voltage bus bar
Being turned on and off for the fling-cut switch is made, reactive-load compensation is carried out to the low-voltage bus bar using the power capacitor.
2. intelligent electric power capacitive means according to claim 1, it is characterised in that the quantity of the power capacitor is three
It is individual, and be connected with the three of the low-voltage bus bar after three power capacitors are end to end respectively.
3. intelligent electric power capacitive means according to claim 2, it is characterised in that the quantity of the fling-cut switch is two
It is individual, and connect any biphase in the three-phase of the low-voltage bus bar respectively.
4. intelligent electric power capacitive means according to claim 1, it is characterised in that the control circuit includes that first connects
Mouthful, the first interface is connected to the low-voltage bus bar by current transducer.
5. intelligent electric power capacitive means according to claim 4, it is characterised in that the control circuit is also connect including second
Mouthful, the second interface is used for being connected to other intelligent electric power capacitive means.
6. intelligent electric power capacitive means according to any one of claim 1-5, it is characterised in that also including display circuit,
For showing in current/voltage value, active power, reactive power, power factor, total harmonic distortion and capacitance present device
Temperature parameter.
7. intelligent electric power capacitive means according to claim 6, it is characterised in that also include being connected with the control circuit
Warning piece, for when over-pressed, under-voltage, phase shortage, harmonic wave transfinite or temperature exceed predetermined threshold when reported to the police.
8. intelligent electric power capacitive means according to any one of claim 1-5, it is characterised in that the control circuit includes
Single-chip microcomputer and the current sample part being connected with the single-chip microcomputer respectively, voltage transformer, signal feedback element, temperature sensing
Device, communication interface and capacitor switching control unit.
9. intelligent electric power capacitive means according to any one of claim 1-5, it is characterised in that also described including being connected to
Reactor between fling-cut switch and the power capacitor.
10. a kind of reactive compensation system, it is characterised in that including multiple intelligent electric powers as described in any one of claim 1-9
Capacitive means, multiple intelligent electric power capacitive means are connected with low-voltage bus bar after being connected with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621101780.XU CN206041510U (en) | 2016-10-08 | 2016-10-08 | Intelligence electric capacitance device and reactive compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621101780.XU CN206041510U (en) | 2016-10-08 | 2016-10-08 | Intelligence electric capacitance device and reactive compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206041510U true CN206041510U (en) | 2017-03-22 |
Family
ID=58297801
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621101780.XU Active CN206041510U (en) | 2016-10-08 | 2016-10-08 | Intelligence electric capacitance device and reactive compensation system |
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| Country | Link |
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| CN (1) | CN206041510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380427A (en) * | 2019-07-22 | 2019-10-25 | 黑龙江特通电气股份有限公司 | A kind of thyristor cutting method of two control, three fling-cut switches |
-
2016
- 2016-10-08 CN CN201621101780.XU patent/CN206041510U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380427A (en) * | 2019-07-22 | 2019-10-25 | 黑龙江特通电气股份有限公司 | A kind of thyristor cutting method of two control, three fling-cut switches |
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