CN204012718U - Voltage regulates and reactive power on-site compensation device automatically - Google Patents
Voltage regulates and reactive power on-site compensation device automatically Download PDFInfo
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- CN204012718U CN204012718U CN201420467429.7U CN201420467429U CN204012718U CN 204012718 U CN204012718 U CN 204012718U CN 201420467429 U CN201420467429 U CN 201420467429U CN 204012718 U CN204012718 U CN 204012718U
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- 239000003990 capacitor Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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 utility model relates to a kind of voltage and automatically regulates and reactive power on-site compensation device, comprise alternating voltage regulon, reactive power compensation unit, the input of alternating voltage regulon is connected with electrical network, and the input of reactive power compensation unit and load are connected to the output of alternating voltage regulon; Alternating voltage regulon comprises full-automatic AC pressurizer; Reactive power compensation unit comprises combination switch, compensation condenser, sampler, controller; The output of alternating voltage regulon is connected with compensation condenser through combination switch, and sampler is arranged between alternating voltage regulon and combination switch, and sampler is connected with the input of controller, and the output of controller is connected with combination switch.Device of the present utility model both can have been realized the reactive power compensation on the spot to electrical network, can carry out pressure regulation to power consumption equipment two ends operating voltage again, thereby improved low-voltage power system utilization rate of electrical, had versatility and general applicability.
Description
Technical field
The utility model relates to a kind of equipment that is applied to electric power system end, can realize to it device of the automatic adjusting of voltage and reactive power compensation.
Background technology
At present, reactive-load compensation equipment is extensive use in electric power system, but need to use respectively different compensation ways and device in different application scenarios.Single with regard to reactive power compensation on the spot, there is following shortcoming in current compensation arrangement:
A. compensation arrangement is only applicable to specific occasion, does not have versatility and general applicability.
B. compensation arrangement is mainly used in realizing the reactive power compensation of power consumption equipment, during, power consumption equipment cisco unity malfunction large at voltage ripple of power network, can not solve preferably.
C. original single-phase portable voltage regulates reactive power compensator can not solve voltage-regulation and the reactive power compensation problem of threephase load.
Summary of the invention
The purpose of this utility model is to provide a kind ofly can carry out reactive power compensation to power consumption equipment, especially when power network fluctuation is larger, carries out being applicable to threephase load and having the device of versatility of reactive power compensation.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of voltage regulates and reactive power on-site compensation device automatically, be arranged between electrical network and load, it comprises the signal of telecommunication of electrical network is carried out to the alternating voltage regulon of exporting after voltage stabilizing, the reactive power compensation unit that the signal of telecommunication of electrical network is carried out to reactive power compensation, the input of described alternating voltage regulon is connected with electrical network, and the input of described reactive power compensation unit is connected with the output that load is connected to described alternating voltage regulon;
Described alternating voltage regulon is to comprise that output voltage sampling part and voltage regulate the full-automatic AC pressurizer of part automatically;
Described reactive power compensation unit comprise combination switch, compensation condenser, collection electric current and voltage sampler, according to the sampled signal of described sampler, control the controller of described combination switch; The output of described alternating voltage regulon is connected with described compensation condenser through described combination switch, between alternating voltage regulon described in described sampler is arranged at and described combination switch, described sampler is connected with the input of described controller, and the output of described controller is connected with described combination switch.
Described full-automatic AC pressurizer comprise there is the autotransformer of the lever arm being connected with described electrical network, change described autotransformer coil ratio carbon brush, drive described carbon brush servomotor, according to the signal of telecommunication of described electrical network, control the control circuit of described servomotor.
Described sampler is current transformer.
Described combination switch is no-flashy-flow capacitance switch.
Described compensation condenser comprises that some groups can be distinguished or the capacitor group of common switching, and described capacitor assembly is for the combination switch described in several.
The input of described alternating voltage regulon is connected respectively with the three-phase phase line of electrical network, and its output comprises three output lines of the three-phase phase line that corresponds respectively to electrical network; On output line described in three, be respectively arranged with described sampler, described controller has three inputs corresponding with described sampler difference, described compensation condenser is connected with the output line described in three by corresponding respectively to the connecting line of the output line described in three, and described combination switch is arranged on the connecting line described in three.
Described alternating voltage regulon also has the voltage that feeds back its output signal and the feedback end that is connected to its input.
Because technique scheme is used, the utility model compared with prior art has following advantages: device of the present utility model both can have been realized the reactive power compensation on the spot to electrical network, can carry out pressure regulation to power consumption equipment two ends operating voltage again, thereby improve low-voltage power system utilization rate of electrical, there is versatility and general applicability.
Accompanying drawing explanation
Accompanying drawing 1 is theory diagram of the present utility model.
Accompanying drawing 2 is circuit theory diagrams of the present utility model.
In above accompanying drawing: 1, electrical network; 2, load; 3, alternating voltage regulon; 4, reactive power compensation unit; 5, full-automatic AC pressurizer; 6, combination switch; 7, compensation condenser; 8, sampler; 9, controller; 10, divide plerosis combination switch; 11, be total to plerosis combination switch; 12, divide and mend electric capacity; 13, mend altogether electric capacity.
Embodiment
Below in conjunction with embodiment shown in the drawings, the utility model is further described.
Embodiment mono-: shown in accompanying drawing 1, a kind of three phase lines and voltage between load 2 that is arranged at electrical network 1 regulates and reactive power on-site compensation device automatically, comprises alternating voltage regulon 3 and reactive power compensation unit 4.
Alternating voltage regulon 3 is exported to load 2 for the signal of telecommunication of electrical network 1 is carried out after voltage stabilizing, and it adopts and comprises that output voltage sampling part and voltage regulate the full-automatic AC pressurizer 5 of part automatically.Full-automatic AC pressurizer 5 comprises carbon brush, the servomotor that drives carbon brush that has the autotransformer of the lever arm being connected with electrical network 1, changes the coil ratio of autotransformer, the control circuit of controlling servomotor according to the signal of telecommunication of electrical network 1, wherein, the lever arm of autotransformer forms output voltage sampling part, and autotransformer, carbon brush, servomotor, control circuit form voltage and automatically regulate part.The input of alternating voltage regulon 3 is connected with electrical network 1, because electrical network 1 has three phase lines, therefore the input of full-automatic AC pressurizer 5 is connected respectively with the three-phase phase line of electrical network 1, and its output comprises three output lines of the three-phase phase line that corresponds respectively to electrical network 1.Alternating voltage regulon 3 also has the voltage that feeds back its output signal and the feedback end that is connected to its input.Load 2 is connected to three output lines of the output of full-automatic AC pressurizer 5.
Reactive power compensation unit 4 is for carrying out reactive power compensation to the signal of telecommunication of electrical network 1.The input of reactive power compensation unit 4 is also connected to three output lines of the output of alternating voltage regulon 3.Reactive power compensation unit 4 comprises combination switch 6, compensation condenser 7, sampler 8, controller 9.Wherein, three output lines of the output of alternating voltage regulon 3 are connected with compensation condenser 7 through combination switch 6, be that compensation condenser 7 is connected with three output lines by corresponding respectively to three connecting lines of three output lines, combination switch 6 is arranged on three connecting lines, in combination switch 6, be provided with microprocessor, thereby can intelligent folding realize the switching of compensation condenser 7; Sampler 8 is arranged on the output line between alternating voltage regulon 3 and combination switch 6, and on three output lines, is provided with respectively 8, three samplers 8 of sampler and is connected with three inputs corresponding on controller 9 respectively; The output of controller 9 is connected with combination switch 6.Concrete, the sampler 8 that gathers electric current and voltage is current transformer, it exports sampled signal.Combination switch 6 is no-flashy-flow capacitance switch, and controller 9 is controlled the opening and closing of combination switch 6 according to the sampled signal of sampler 8, thereby whether control and compensation capacitor 7 accesses and compensate.And compensation condenser 7 comprises that some groups can be distinguished or the capacitor group of common switching, corresponding, capacitor assembly is for several combination switches 6, and the corresponding output multi-channel control signal of controller 9.In the present embodiment, capacitor group is respectively minute benefit electric capacity 12 and mends altogether electric capacity 13, and coupled combination switch 6 is respectively minute plerosis combination switch 10 and is total to plerosis combination switch 11.
During this device busy, the low tension signal of electrical network 1 is input in alternating voltage regulon 3, the output signal of alternating voltage regulon 3 also feeds back to its input, if spread of voltage, control circuit is controlled servomotor and is adjusted carbon brush, thereby change the coil ratio of autotransformer, reach the object that makes output voltage stabilization, the alternating voltage of alternating voltage regulon 3 stable outputs, make the voltage stabilization of load 2 near its rated voltage, can effectively solve the problem of the power consumption equipment cisco unity malfunction that load 2 voltage undulations cause.And in reactive power compensation unit 4, current transformer carries out current sample and voltage sample, and by sampled signal input control device 9,9 pairs of electrical network 1 parameters of electric power of controller are monitored in real time, when needs carry out reactive power compensation, when the lower perception of power factor is idle when exceeding set point and not meeting instructions for use, controller 9 output DC12V level controling signals, control the folding of Intelligent Composite switched capacitor switch, and then the capacitor group of compensation condenser 7 is carried out to grouping switching, thereby reduce the reactive power in electrical network 1.
Above-mentioned portable voltage regulates and reactive power on-site compensation device automatically, be mainly used in the reactive power in-situ compensation of low-voltage power system end electric equipment, when electrical network 1 Voltage unbalance, this device can regulate floating voltage by three-phase synchronous, also there is phase-splitting voltage-regulation following function, thereby improve better utilization rate of electrical and power quality.When electrical network 1 voltage is low, when voltage fluctuation is larger, this device can carry out voltage-regulation voltage-stabilization automatically, guarantees the normal work of power consumption equipment.This device is compared with existing compensation arrangement, has the following advantages: the inner modularization that adopts, and integration design principle, each module is accomplished construction minimizes meeting on the basis of instructions for use, thereby guarantees the portability of this device; Inner with full-automatic AC pressurizer 5, can be to the voltage stabilizing that automatically adjusts of various electrical loads 2 and household electrical appliance both end voltage, in electrical network 1 voltage fluctuation, when larger, power consumption equipment also can normally be worked.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.
Claims (7)
1. a voltage regulates and reactive power on-site compensation device automatically, be arranged between electrical network and load, it is characterized in that: it comprises the signal of telecommunication of electrical network is carried out to the alternating voltage regulon of exporting after voltage stabilizing, the reactive power compensation unit that the signal of telecommunication of electrical network is carried out to reactive power compensation, the input of described alternating voltage regulon is connected with electrical network, and the input of described reactive power compensation unit and load are connected to the output of described alternating voltage regulon;
Described alternating voltage regulon is to comprise that output voltage sampling part and voltage regulate the full-automatic AC pressurizer of part automatically;
Described reactive power compensation unit comprise combination switch, compensation condenser, collection electric current and voltage sampler, according to the sampled signal of described sampler, control the controller of described combination switch; The output of described alternating voltage regulon is connected with described compensation condenser through described combination switch, between alternating voltage regulon described in described sampler is arranged at and described combination switch, described sampler is connected with the input of described controller, and the output of described controller is connected with described combination switch.
2. voltage according to claim 1 automatically regulates and reactive power on-site compensation device, it is characterized in that: described full-automatic AC pressurizer comprise there is the autotransformer of the lever arm being connected with described electrical network, change described autotransformer coil ratio carbon brush, drive described carbon brush servomotor, according to the signal of telecommunication of described electrical network, control the control circuit of described servomotor.
3. voltage according to claim 1 regulates and reactive power on-site compensation device automatically, it is characterized in that: described sampler is current transformer.
4. voltage according to claim 1 regulates and reactive power on-site compensation device automatically, it is characterized in that: described combination switch is no-flashy-flow capacitance switch.
5. voltage according to claim 1 automatically regulates and reactive power on-site compensation device, it is characterized in that: described compensation condenser comprises that some groups can distinguish or the capacitor group of switching jointly, and described capacitor assembly is for the combination switch described in several.
6. voltage according to claim 1 regulates and reactive power on-site compensation device automatically, it is characterized in that: the input of described alternating voltage regulon is connected respectively with the three-phase phase line of electrical network, its output comprises three output lines of the three-phase phase line that corresponds respectively to electrical network; On output line described in three, be respectively arranged with described sampler, described controller has three inputs corresponding with described sampler difference, described compensation condenser is connected with the output line described in three by corresponding respectively to the connecting line of the output line described in three, and described combination switch is arranged on the connecting line described in three.
7. voltage according to claim 1 regulates and reactive power on-site compensation device automatically, it is characterized in that: described alternating voltage regulon also has the voltage that feeds back its output signal and the feedback end that is connected to its input.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467429.7U CN204012718U (en) | 2014-08-19 | 2014-08-19 | Voltage regulates and reactive power on-site compensation device automatically |
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| CN201420467429.7U CN204012718U (en) | 2014-08-19 | 2014-08-19 | Voltage regulates and reactive power on-site compensation device automatically |
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| CN204012718U true CN204012718U (en) | 2014-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098621A (en) * | 2019-04-12 | 2019-08-06 | 安徽中电电气有限公司 | A kind of reactive power automatic compensation device for motor local compensation |
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2014
- 2014-08-19 CN CN201420467429.7U patent/CN204012718U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098621A (en) * | 2019-04-12 | 2019-08-06 | 安徽中电电气有限公司 | A kind of reactive power automatic compensation device for motor local compensation |
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