CN204706889U - Low-voltage dynamic filtering bucking-out system - Google Patents
Low-voltage dynamic filtering bucking-out system Download PDFInfo
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- CN204706889U CN204706889U CN201520269040.6U CN201520269040U CN204706889U CN 204706889 U CN204706889 U CN 204706889U CN 201520269040 U CN201520269040 U CN 201520269040U CN 204706889 U CN204706889 U CN 204706889U
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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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- 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
- Y02E40/40—Arrangements for reducing harmonics
Abstract
A kind of low-voltage dynamic filtering bucking-out system, structure is as follows: in electric cabinet, current transformer is connected on the busbar of electrical network electricity cabinet, host computer and dynamic filter compensating controller are bi-directionally connected, busbar current transformer and bus-bar potential transformer are connected the input of dynamic filter compensating controller respectively, in electricity cabinet, current transformer connects the input of dynamic filter compensating controller, at least two static reacance generators are connected busbar with one end of at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements, at least two static reacance generators and dynamic filter compensating controller are bi-directionally connected, at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements and dynamic filter compensating controller are bi-directionally connected.Native system has merged static reacance generator technology and dynamic reactive power compensation technology, while effectively improving the quality of power supply, obtains significantly energy-saving and cost-reducing benefit.And system has automatic fault-tolerant operating mechanism.
Description
Technical field
The utility model relates to a kind of power back-off field, especially a kind of low-voltage dynamic filtering bucking-out system.
Background technology
Along with the development of modern science and technology, social life modernization more, intellectuality, electric power system is polluted more and more serious, the normal operation of the power quality problem serious threat electric power systems such as power factor is low, harmonic content is high, voltage fluctuation and flicker, three-phase imbalance, power rush and subscriber equipment, and day by day complicated power quality problem needs more comprehensive, an efficient comprehensive intelligent solution badly.
In view of this, special proposition the utility model.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, there is provided a kind of to compensate voltage fluctuation and flicker, load unbalanced, power factor and harmonic wave, while effectively improving the quality of power supply, obtain the low-voltage dynamic filtering bucking-out system of significantly energy-saving and cost-reducing benefit.
For solving the problems of the technologies described above, the basic conception of the utility model employing technical scheme is:
A kind of low-voltage dynamic filtering bucking-out system, comprise host computer, dynamic filter compensating controller, at least two static reacance generators, at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements, current transformer, busbar current transformer and bus-bar potential transformer in electric cabinet;
In described electric cabinet, current transformer is connected on the busbar of electrical network electricity cabinet, the output of described host computer connects the input of described dynamic filter compensating controller, the output of described dynamic filter compensating controller connects the input of described host computer, described busbar current transformer and bus-bar potential transformer are connected the input of described dynamic filter compensating controller respectively, in described electric cabinet, current transformer connects the input of described dynamic filter compensating controller, described at least two static reacance generators are connected described busbar with one end of at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements, another output of described at least two static reacance generators connects the input of described dynamic filter compensating controller respectively, the input of at least two static reacance generators described in the output of described dynamic filter compensating controller connects respectively, the output of described at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements connects the input of described dynamic filter compensating controller respectively, the input of at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements described in the output of described dynamic filter compensating controller connects respectively.
Further, also comprise master switch, described master switch is connected on described busbar, described master switch connects the input of described dynamic filter compensating controller, and the output of described dynamic filter compensating controller connects described master switch.
Preferably, described low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement comprises fuse, controller, Current Transformer Assembly, zero fling-cut switch assembly, dry type series reactor assembly and capacitor capacitive load assembly, described Current Transformer Assembly comprises three current transformers, described zero fling-cut switch assembly comprises three zero fling-cut switches, described dry type series reactor assembly comprises three dry type series reactors, and described capacitor capacitive load assembly comprises three capacitor capacitive loads, described fuse one end connects the three-phase of alternating current, the other end of fuse connects one end of three current transformers of described Current Transformer Assembly respectively, the other end of described three current transformers connects one end of three zero fling-cut switches of described zero fling-cut switch assembly respectively, the other end of described three zero fling-cut switches connects one end of three dry type series reactors of described dry type series reactor assembly respectively, the other end of described three dry type series reactors connects one end of three capacitor capacitive loads of described capacitor capacitive load assembly respectively, the center of described three capacitor capacitive loads Y-connection connects mains neutral line, three terminals that described fuse is connected with described three current transformers also connect the input of described controller respectively, described three current transformers also connect the input of described controller respectively, the output of described dynamic filter compensating controller connects the input of described controller, and the output of described controller connects the input of described dynamic filter compensating controller.
Further, also comprise LCD, the output of described controller connects described LCD.
Further, also comprise the temperature sensor of described three capacitor capacitive loads, described temperature sensor connects the input of described controller.
Preferably, described static reacance generator comprises three-phase full-bridge inverter, and the three-phase output end of described three-phase full-bridge inverter is connected on described busbar.
Preferably, four static reacance generators and four low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements are comprised.
After adopting technique scheme, the utility model compared with prior art has following beneficial effect:
Native system has merged static reacance generator technology (static reacance generator) and dynamic reactive power compensation (low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement) technology, control unit is used to control static reacance generator and low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement, idle, voltage and power factor is adopted comprehensively to change the main basis for estimation regulating reactive apparatus as switching, quick follow load change, dynamic switched capacitor.When switching regulates reactive apparatus, the method of static reacance generator is finely tuned after taking coarse adjustment low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement, dynamic passive compensation fast and effectively can be carried out for the fluctuating load of various operating mode, voltage fluctuation and flicker, load unbalanced, power factor and harmonic wave are compensated, while effectively improving the quality of power supply, obtain significantly energy-saving and cost-reducing benefit.And system has automatic fault-tolerant operating mechanism, namely system is when static reacance generator+Intelligent capacitor mode is run automatically, if static reacance generator breaks down, automatically switches to Intelligent capacitor mode and runs.If certain Intelligent capacitor breaks down, then it is rejected from switching sequence, do not affect the normal switching of other Intelligent capacitors.Parasitic element (low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement) can filtering fractional harmonic by the design of rational reactance coefficient, active cell (static reacance generator) filtering remainder harmonic wave.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model low-voltage dynamic filtering bucking-out system;
Fig. 2 is the circuit diagram of low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement.
In figure:
Host computer-6, bus-bar potential transformer-5, busbar current transformer-4, current transformer-3 dynamic filter compensating controller-7 first static reacance generator-8 second static reacance generator-9 the 3rd static reacance generator-10 the 4th static reacance generator-11 first low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement-12 second low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement-13 the 3rd low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement-14 the 4th low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement-15 in the electric cabinet in master switch-2, busbar-1
In low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement, each part numbers is as follows:
Fuse-QF controller-A Current Transformer Assembly-TA zero fling-cut switch assembly-K dry type series reactor assembly-L capacitor capacitive load assembly-C temperature sensor-RT
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, to help understanding content of the present utility model.
As shown in Figure 1, a kind of low-voltage dynamic filtering bucking-out system, comprise host computer 6, dynamic filter compensating controller 7, four static reacance generators (are respectively the first static reacance generator 8, second static reacance generator 9, 3rd static reacance generator 10 and the 4th static reacance generator 11), four low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements (are respectively the first low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement 12, second low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement 13, 3rd low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement 14 and the 4th low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement 15), current transformer 3 in electricity cabinet, busbar current transformer 4 and bus-bar potential transformer 5,
In described electric cabinet, current transformer 3 is connected on the busbar 1 of electrical network electricity cabinet, the output of described host computer 6 connects the input of described dynamic filter compensating controller 7, the output of described dynamic filter compensating controller 7 connects the input of described host computer 6, described busbar current transformer 4 and bus-bar potential transformer 5 are connected the input of described dynamic filter compensating controller 7 respectively, in described electric cabinet, current transformer 3 connects the input of described dynamic filter compensating controller 7, described four static reacance generators are connected described busbar 1 with one end of four low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements, another output of described four static reacance generators connects the input of described dynamic filter compensating controller 7 respectively, the output of described dynamic filter compensating controller 7 connects the input of described four static reacance generators respectively, the output of described four low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements connects the input of described dynamic filter compensating controller 7 respectively, the output of described dynamic filter compensating controller 7 connects the input of described four low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements respectively.
Also comprise master switch 2, described master switch 2 is connected on described busbar 1, described master switch 2 connects the input of described dynamic filter compensating controller 7, and the output of described dynamic filter compensating controller 7 connects described master switch 2.
With reference to Fig. 2, described low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement comprises fuse QF, controller A, Current Transformer Assembly TA, zero fling-cut switch assembly K, dry type series reactor assembly L and capacitor capacitive load assembly C, described Current Transformer Assembly TA comprises three current transformers, described zero fling-cut switch assembly K comprises three zero fling-cut switches, described dry type series reactor assembly L comprises three dry type series reactors, described capacitor capacitive load assembly C comprises three capacitor capacitive loads, described fuse QF one end connects the three-phase UA of alternating current, UB and UC, the other end of fuse QF connects one end of three current transformers of described Current Transformer Assembly TA respectively, the other end of described three current transformers connects one end of three zero fling-cut switches of described zero fling-cut switch assembly K respectively, the other end of described three zero fling-cut switches connects one end of three dry type series reactors of described dry type series reactor assembly L respectively, the other end of described three dry type series reactors connects one end of three capacitor capacitive loads of described capacitor capacitive load assembly C respectively, the center of described three capacitor capacitive loads Y-connection connects mains neutral line UN, three terminals that described fuse QF is connected with described three current transformers also connect the input of described controller A respectively, described three current transformers also connect the input of described controller A respectively, the output of described dynamic filter compensating controller 7 connects the input of described controller A, the output of described controller A connects the input of described dynamic filter compensating controller 7, and q point is the tie point of controller and dynamic filter compensating controller 7 in fig. 2.
Further, also comprise LCD, the output of described controller A connects described LCD, for man-machine interaction.
Further, described low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement also comprises the temperature sensor RT of described three capacitor capacitive loads, and described temperature sensor RT connects the input of described controller A.
This low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement adopts current transformer to detect each phase current, realizes each phase current segmentation and inverse time protection, as the main protection of harmonic wave and the backup protection of resonance;
Temperature sensor is adopted to carry out temperature section and inverse time protection to low voltage power capacitor, as overvoltage, the backup protection of crossing harmonic wave.
In this low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement reactor the linearity in the scope of 0 to 25% due to 0.1%, therefore operationally almost produce without harmonic wave.
Adopt reactance Rate to be the reactor of 7%, can suppress 5,7 times and above high order harmonic component; Adopt reactance Rate to be the reactor of 14%, can suppress 3,5,7 times and above high order harmonic component.These reactors can after assurance device puts into operation, and switched capacitor can not produce resonance with system, lacks the reliably working of bag compensation arrangement.
This low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement adopts three low value capacitors, and reliability is high, and the switching progression of capacitor also can effectively be increased.
Low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement has following characteristics:
1, low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement is provided with the complete defencive function such as voltage, electric current, temperature, can prevent the heavy humorous resonance that involves,
2, reliable and stable
Low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement adopts intelligent zero-cross-switching switch operating passing zero technology, switching dead-beat.
3, the power magnetic force keeping relay proof voltage impact capacity used in zero fling-cut switch is greater than interchange 4000V (direct current 5000V), and resistance to rush of current ability reaches more than 110 times of rated current, and band carries the specified number of times of switching more than 1,000,000 times.
4, adopt high linearity reactor (described dry type series reactor assembly L), the linearity, being better than 0.1% from 0 in the annoying scope of overload 25%, therefore operationally almost produces without harmonic wave.
Preferably, described static reacance generator comprises three-phase full-bridge inverter, and the three-phase output end of described three-phase full-bridge inverter is connected on described busbar 1.
Static reacance generator has following characteristics:
1, can provide from perception to capacitive continuous, level and smooth, dynamically, reactive power compensation fast;
2, Harmonics amplification and resonance can not be there is, insensitive to system parameters, fail safe and good stability;
3, not only do not produce harmonic wave, and possess harmonic compensation function simultaneously, while dynamic passive compensation, filtering can be carried out to the harmonic wave of less than 25 times;
4, the response time is not more than 5ms, fast response time, for effectively suppressing flickering in power distribution network.
Native system has merged static reacance generator technology (static reacance generator) and dynamic reactive power compensation (low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement) technology, control unit is used to control static reacance generator and low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement, idle, voltage and power factor is adopted comprehensively to change the main basis for estimation regulating reactive apparatus as switching, quick follow load change, dynamic switched capacitor.When switching regulates reactive apparatus, the method of static reacance generator is finely tuned after taking coarse adjustment low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement, dynamic passive compensation fast and effectively can be carried out for the fluctuating load of various operating mode, voltage fluctuation and flicker, load unbalanced, power factor and harmonic wave are compensated, while effectively improving the quality of power supply, obtain significantly energy-saving and cost-reducing benefit.And system has automatic fault-tolerant operating mechanism, namely system is when static reacance generator+Intelligent capacitor mode is run automatically, if static reacance generator breaks down, automatically switches to Intelligent capacitor mode and runs.If certain Intelligent capacitor breaks down, then it is rejected from switching sequence, do not affect the normal switching of other Intelligent capacitors.Parasitic element (low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement) can filtering fractional harmonic by the design of rational reactance coefficient, active cell (static reacance generator) filtering remainder harmonic wave.Parasitic element and active cell are undertaken unifying to control by a controller (dynamic filter compensating controller 7), co-ordination, realize best harmonic wave control effect.
The low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement of indication in above-mentioned Intelligent capacitor and native system.
Following describe several different field of this low-voltage dynamic filtering bucking-out system application.
1, regional distribution network
Along with the fast development of national economy, the increasing of power distribution network user makes that power load scale is increasing, load type becomes increasingly complex, and the fail safe that power distribution network runs, economy are more and more subject to people's attention.Installing low-voltage dynamic filtering bucking-out system at distribution load centre station can the idle output of fine adjustment, ensure reactive balance, effectively improve quality of voltage, improve system voltage stabilizes, avoid a large amount of idle long-distance sand transport, reduce network loss, improve conveying capacity and the utilization rate of equipment and installations of electrical network, significantly improve system power factor, improve power supply economics.
2, region is supporting
The supporting power supply in region mostly is Residential Area intermediate item, because user comparatively disperses and the little kind of load capacity is many, therefore proposes higher technical requirement to reactive power compensation and harmonic wave control.The quick follow load change of low-voltage dynamic filtering bucking-out system, smoothly stepless accurate compensation power factor, harmonic carcellation hidden danger, is the strong guarantee of region distribution stable operation simultaneously.
3, data center
Client faced by IDC industry is generally enterprise-level client, what have is even portal website, if load is interrupted, IDC service supplier will face massive losses, therefore very high to the reliability requirement of power supply, load used mostly is the electronic products such as Switching Power Supply, has higher technical requirement to power supply quality; Low-voltage dynamic filtering bucking-out system follows the tracks of load variations fast, provides accurate compensation, filtering harmonic wave, stable power-supplying quality, is the quality of power supply solution of IDC industry the best.
4, petrochemical industry
The loads such as the large-size machine of petroleum chemical enterprise and frequency conversion power electronic equipment, as motor start-up procedure, can impact electrical network and cause voltage fluctuation and flicker; Be that the power electronic equipment of representative can inject a large amount of harmonic waves in system with frequency converter, endanger the Electrical Safety of other equipment.Low-voltage dynamic filtering bucking-out system can effectively solve the problem, and ensures power supply network and the safe, reliable, efficient operation of power consumption equipment.
5, automobile making
In auto manufacturing's main loads, spot welding machine load variations is fast, reactive power impact is strong, harmonic wave is large, and when punch press, motor, conveyer start, reactive power impact is large, and make power network fluctuation large, other non-linear equipments produce a large amount of harmonic wave.Low-voltage dynamic filtering bucking-out system can real-time compensation system idle, improve power factor, effective harmonic inhabitation, thoroughly improves the quality of power supply of electric power system.
6, coal industry
The reactive load such as power shovel, elevator, the belt feeder change used in coal industry greatly, idle change is fast, cause system power factor too low, the production equipment such as coal-winning machine, disintegrating machine mostly is nonlinear load, produce a large amount of harmonic wave, low-voltage dynamic filtering bucking-out system can compensate System Reactive Power fast and accurately, systems stabilisation voltage, improve power factor, help coal industry to optimize the quality of power supply of electric power system.
7, port and pier
Greatly, pace of change is fast, heavy duty in short-term for the change of harbour facilities load capacity, and load start and stop are frequent, and starting capacity is large, can cause reactive power impact in short-term to electrical network.Harbour driving arrangement uses a large amount of frequency conversion power electronic equipment also can produce a large amount of harmonic waves, has a strong impact on the power supply quality at harbour.Low-voltage dynamic filtering bucking-out system can change by follow load, and respond fast, effective compensation reactive requirement, stablizes line voltage, filtering harmonic wave.
8, metallurgy industry
The load such as rolling mill, arc furnace of smelter makes that fluctuation and flickering, three-phase imbalance occur line voltage, power factor is low, line loss increases, harmonic excess, the safe operation of serious harm electric power system and the safety and economic operation of electric equipment.Low-voltage dynamic filtering bucking-out system is applied in each nonlinear-load electric power system in smelter, can fast compensating reactive power, improve system voltage stabilizes, filtering harmonic wave, improves quality of voltage.
Except the above-mentioned embodiment comprising four static reacance generators and four low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements, static reacance generator and low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement can also for any quantity being more than or equal to two.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (7)
1. a low-voltage dynamic filtering bucking-out system, it is characterized in that, comprise host computer, dynamic filter compensating controller, at least two static reacance generators, at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements, current transformer, busbar current transformer and bus-bar potential transformer in electric cabinet;
In described electric cabinet, current transformer is connected on the busbar of electrical network electricity cabinet, the output of described host computer connects the input of described dynamic filter compensating controller, the output of described dynamic filter compensating controller connects the input of described host computer, described busbar current transformer and bus-bar potential transformer are connected the input of described dynamic filter compensating controller respectively, in described electric cabinet, current transformer connects the input of described dynamic filter compensating controller, described at least two static reacance generators are connected described busbar with one end of at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements, another output of described at least two static reacance generators connects the input of described dynamic filter compensating controller respectively, the input of at least two static reacance generators described in the output of described dynamic filter compensating controller connects respectively, the output of described at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements connects the input of described dynamic filter compensating controller respectively, the input of at least two low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements described in the output of described dynamic filter compensating controller connects respectively.
2. low-voltage dynamic filtering bucking-out system according to claim 1, it is characterized in that, also comprise master switch, described master switch is connected on described busbar, described master switch connects the input of described dynamic filter compensating controller, and the output of described dynamic filter compensating controller connects described master switch.
3. low-voltage dynamic filtering bucking-out system according to claim 1, it is characterized in that, described low-voltage harmonic wave resistant type intelligent capacitor compensation arrangement comprises fuse, controller, Current Transformer Assembly, zero fling-cut switch assembly, dry type series reactor assembly and capacitor capacitive load assembly, described Current Transformer Assembly comprises three current transformers, described zero fling-cut switch assembly comprises three zero fling-cut switches, described dry type series reactor assembly comprises three dry type series reactors, and described capacitor capacitive load assembly comprises three capacitor capacitive loads, described fuse one end connects the three-phase of alternating current, the other end of fuse connects one end of three current transformers of described Current Transformer Assembly respectively, the other end of described three current transformers connects one end of three zero fling-cut switches of described zero fling-cut switch assembly respectively, the other end of described three zero fling-cut switches connects one end of three dry type series reactors of described dry type series reactor assembly respectively, the other end of described three dry type series reactors connects one end of three capacitor capacitive loads of described capacitor capacitive load assembly respectively, the center of described three capacitor capacitive loads Y-connection connects mains neutral line, three terminals that described fuse is connected with described three current transformers also connect the input of described controller respectively, described three current transformers also connect the input of described controller respectively, the output of described dynamic filter compensating controller connects the input of described controller, and the output of described controller connects the input of described dynamic filter compensating controller.
4. low-voltage dynamic filtering bucking-out system according to claim 3, is characterized in that, also comprise LCD, and the output of described controller connects described LCD.
5. low-voltage dynamic filtering bucking-out system according to claim 3, is characterized in that, also comprise the temperature sensor of described three capacitor capacitive loads, described temperature sensor connects the input of described controller.
6. the low-voltage dynamic filtering bucking-out system according to any one of claim 1-5, is characterized in that, described static reacance generator comprises three-phase full-bridge inverter, and the three-phase output end of described three-phase full-bridge inverter is connected on described busbar.
7. low-voltage dynamic filtering bucking-out system according to claim 1, is characterized in that, comprises four static reacance generators and four low-voltage harmonic wave resistant type intelligent capacitor compensation arrangements.
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| CN201520269040.6U CN204706889U (en) | 2015-04-29 | 2015-04-29 | Low-voltage dynamic filtering bucking-out system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262213A (en) * | 2015-10-19 | 2016-01-20 | 湖北华宏电力科技有限公司 | Client distribution intelligent system |
| CN106972506A (en) * | 2017-05-11 | 2017-07-21 | 成都瑞尔维轨道交通技术有限公司 | Distribution system and power system |
| CN107069765A (en) * | 2017-04-27 | 2017-08-18 | 国网冀北电力有限公司唐山供电公司 | A kind of low pressure mixed type reactive-load compensation complete equipment and application method |
| CN109524966A (en) * | 2019-01-04 | 2019-03-26 | 江苏谷峰电力科技股份有限公司 | A kind of New Fusion microgrid filter benefit device |
-
2015
- 2015-04-29 CN CN201520269040.6U patent/CN204706889U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262213A (en) * | 2015-10-19 | 2016-01-20 | 湖北华宏电力科技有限公司 | Client distribution intelligent system |
| CN107069765A (en) * | 2017-04-27 | 2017-08-18 | 国网冀北电力有限公司唐山供电公司 | A kind of low pressure mixed type reactive-load compensation complete equipment and application method |
| CN107069765B (en) * | 2017-04-27 | 2023-07-21 | 国网冀北电力有限公司唐山供电公司 | Low-voltage hybrid reactive compensation complete equipment and use method thereof |
| CN106972506A (en) * | 2017-05-11 | 2017-07-21 | 成都瑞尔维轨道交通技术有限公司 | Distribution system and power system |
| CN106972506B (en) * | 2017-05-11 | 2023-10-13 | 成都交达电气有限公司 | Power distribution system and power system |
| CN109524966A (en) * | 2019-01-04 | 2019-03-26 | 江苏谷峰电力科技股份有限公司 | A kind of New Fusion microgrid filter benefit device |
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| CF01 | Termination of patent right due to non-payment of annual fee |