CN104167744A - Intelligent temperature control low-voltage power capacitor - Google Patents
Intelligent temperature control low-voltage power capacitor Download PDFInfo
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- CN104167744A CN104167744A CN201410429170.1A CN201410429170A CN104167744A CN 104167744 A CN104167744 A CN 104167744A CN 201410429170 A CN201410429170 A CN 201410429170A CN 104167744 A CN104167744 A CN 104167744A
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- capacitor
- capacitor monomer
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- assembly
- temperature control
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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 an intelligent temperature control low-voltage power capacitor. The intelligent temperature control low-voltage power capacitor comprises a main line used for being connected with a power supply and a plurality of branch lines which are connected with the main line and connected in parallel. The main line is provided with a voltage sampling assembly. Each branch line comprises a capacitor single body, a current sampling assembly, a zero-switching switch apparatus assembly and a temperature sensing assembly. The capacitance of all the capacitor single bodies is equal. The intelligent temperature control low-voltage power capacitor further comprises an intelligent assembly which is used for receiving data signals which are collected and provided by the voltage sampling assemblies, the current sampling assemblies and the temperature sensing assemblies and used for controlling the zero-switching switch apparatus assemblies. By means of the intelligent temperature control low-voltage power capacitor, the performance condition of the capacitor single bodies is monitored, the state of the capacitor single bodies can be conveniently known in time, the capacitor single bodies can be cut off when the capacitor single bodies abnormally work or the service life of the capacitor single bodies ends, and other capacitor single bodies can be put in so that the intelligent power capacitor can unceasingly supplement capacitive loads to a power supply system.
Description
Technical field
The present invention relates to a kind of intelligent temperature control low voltage power capacitor, belong to intelligent power capacitor control method technical field.
Background technology
In low-voltage power supply system, inductive load is the main cause that power factor reduces, and causes thus reactive loss to increase, and energy loss increases, and has reduced the capacity of system.Intelligent power capacitor is mainly used in compensating capacitive load in electric power system, input in good time compensation condenser or excision, can utilize the capacitive load of capacitor to offset inductive load, makes load characteristic approach pure resistive state, thereby improves power factor.For fear of occurring that capacitive load is greater than the situation of inductive load, the input of compensation condenser or excision need to be determined according to the real-time characteristic of inductive load in circuit, conventionally include the certain capacitor monomer of multiple electric capacity for the intelligent power capacitor that capacitive load compensation is provided, the inductive load real time data obtaining according to circuit monitoring in real work, optionally drop into or excise each capacitor monomer, thereby the inductive load in overall capacitive load and the circuit of intelligent power capacitor is matched.In addition, capacitor monomer, in dropping into or excising, easily produces immediate current, forms inrush phenomenon, can make the internal structure scaling loss gradually of capacitor monomer, until capacitor monomer end-of-life.Therefore; need to monitor the performance condition of capacitor monomer; so that the timely state of electrolysis condenser monomer; and excised, and drop into other capacitor monomer so that intelligent power capacitor can compensate capacitive load constantly in electric power system in capacitor monomer operation irregularity or end-of-life.
Summary of the invention
The demand that the present invention exists for prior art just; a kind of intelligent temperature control low voltage power capacitor is provided; performance condition to capacitor monomer is monitored; so that the timely state of electrolysis condenser monomer; and excised, and drop into other capacitor monomer so that intelligent power capacitor can compensate capacitive load constantly in electric power system in capacitor monomer operation irregularity or end-of-life.
For addressing the above problem, the technical solution used in the present invention is as follows:
A kind of intelligent temperature control low voltage power capacitor, comprising: for connecting the total line and several point circuits that are arranged in parallel that are connected described total line of power supply;
Described total line is provided with the voltage sampling assembly for measuring circuit voltage and distribution power factor;
Each described point circuit includes the capacitor monomer for the capacitive load that affords redress, with the current sampling assembly for measuring described capacitor monomer electric current, be used for the zero fling-cut switch electric appliance component that described capacitor monomer drops into or cut-off circuit connects, and for monitoring the temperature sensing component of described capacitor monomer temperature, and described capacitor monomer, described current sampling assembly and described zero fling-cut switch electric appliance component are connected mutually, described current sampling assembly is between described capacitor monomer and described zero fling-cut switch electric appliance component; The electric capacity of the described capacitor monomer in each described point circuit all equates;
Data-signal for receiving described voltage sampling assembly, described current sampling assembly and described temperature sensing component collection and providing is also provided, and for send the intelligent assembly of control signal to described zero fling-cut switch electric appliance component.
Compared with prior art, implementation result of the present invention is as follows in the present invention:
Temperature is capacitor operation irregularity whether important sign, and when the situations such as thin-film capacitor punctures when occurring, electrochemical capacitor leakage, capacitor all can generate heat, and therefore can effectively realize the monitoring of capacitor service behaviour by the temperature of monitoring capacitor.Intelligent temperature control low voltage power capacitor of the present invention, can monitor the performance condition of capacitor monomer by temperature sensing component, in the time that temperature sensing component detects that certain capacitor monomer working temperature exceedes predetermined value, intelligent assembly can be controlled described zero fling-cut switch electric appliance component it is excised from circuit, and drops into other capacitor monomer so that intelligent power capacitor can compensate capacitive load constantly in electric power system.
Brief description of the drawings
Fig. 1 is intelligent temperature control low voltage power capacitor structural representation of the present invention.
Embodiment
Content of the present invention is described below in conjunction with specific embodiments.
As shown in Figure 1, be intelligent temperature control low voltage power capacitor structural representation of the present invention.Intelligent temperature control low voltage power capacitor of the present invention, comprising: for connecting the total line and several point circuits that are arranged in parallel that are connected described total line of power supply; Described total line is provided with the voltage sampling assembly V for measuring circuit voltage and distribution power factor; Each described point circuit includes the capacitor monomer C for the capacitive load that affords redress, with the current sampling assembly L for measuring described capacitor monomer C electric current, be used for the zero fling-cut switch electric appliance component K that described capacitor monomer C drops into or cut-off circuit connects, and for monitoring the temperature sensing component T of described capacitor monomer C temperature, and described capacitor monomer C, described current sampling assembly L and described zero fling-cut switch electric appliance component K connect mutually, described current sampling assembly L is between described capacitor monomer C and described zero fling-cut switch electric appliance component K; The electric capacity of described capacitor monomer C in each described point circuit all equates; The data-signal that gathers and provide for receiving described voltage sampling assembly V, described current sampling assembly L and described temperature sensing component T is also provided, and for send the intelligent assembly CPU of control signal to described zero fling-cut switch electric appliance component K.
When work, the circuit power factor that obtains and provide according to voltage sampling assembly V, intelligent assembly CPU calculates the compensation capacitive load needing, then send control signal to described zero fling-cut switch electric appliance component K, the capacitor monomer C of some is dropped in circuit, temperature sensing component T Real-Time Monitoring drops into the temperature regime of each capacitor monomer C in circuit, in the time that the temperature of some capacitor monomer C is greater than the temperature upper limit of setting, intelligent assembly CPU sends control signal by the capacitor monomer C excision of excess Temperature to described zero fling-cut switch electric appliance component K, and drop into another and do not drop into capacitor monomer C in circuit to replace the capacitor monomer C of excess Temperature.
In prior art, the electric capacity of each capacitor monomer C of capacitive load of being generally used for affording redress is unequal, and the connected mode of capacitor monomer C comprises parallel connection and also comprises series connection, in the time of the excess Temperature of some capacitor monomer C, conventionally after intelligent assembly CPU need to reject the capacitor monomer C of this excess Temperature, reselect suitable capacitive load compensation scheme, determine input and the excision state of each capacitor monomer C according to new capacitive load compensation scheme, last intelligent assembly CPU sends control signal to described zero fling-cut switch electric appliance component K makes the input of each capacitor monomer C and excision state realize the requirement of new capacitive load compensation scheme, the method relates to more capacitor monomer C need to change switching state, switching can frequently form inrush phenomenon frequently, not only can damage capacitor monomer C internal components, but also meeting ablation zero fling-cut switch electric appliance component K, and electrical network is produced to harmonic pollution.And the invention provides intelligent temperature control low voltage power capacitor owing to thering is point circuit that several are arranged in parallel, and the electric capacity of the described capacitor monomer C in each described point circuit all equates, is therefore beneficial to the excision while simplifying capacitor monomer C operation irregularity and replaces operation procedure.
Above content is detailed description made for the present invention in conjunction with specific embodiments, can not assert that the concrete enforcement of the present invention only limits to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to the scope of protection of the invention.
Claims (1)
1. an intelligent temperature control low voltage power capacitor, is characterized in that, comprising: for connecting the total line and several point circuits that are arranged in parallel that are connected described total line of power supply;
Described total line is provided with the voltage sampling assembly (V) for measuring circuit voltage and distribution power factor;
Each described point circuit includes the capacitor monomer (C) for the capacitive load that affords redress, with the current sampling assembly (L) for measuring described capacitor monomer (C) electric current, be used for the zero fling-cut switch electric appliance component (K) that described capacitor monomer (C) drops into or cut-off circuit connects, and for monitoring the temperature sensing component (T) of described capacitor monomer (C) temperature, and described capacitor monomer (C), described current sampling assembly (L) and described zero fling-cut switch electric appliance component (K) are connected mutually, described current sampling assembly (L) is positioned between described capacitor monomer (C) and described zero fling-cut switch electric appliance component (K), the electric capacity of the described capacitor monomer (C) in each described point circuit all equates,
The data-signal that gathers and provide for receiving described voltage sampling assembly (V), described current sampling assembly (L) and described temperature sensing component (T) is also provided, and for send the intelligent assembly (CPU) of control signal to described zero fling-cut switch electric appliance component (K).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429170.1A CN104167744A (en) | 2014-08-21 | 2014-08-21 | Intelligent temperature control low-voltage power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429170.1A CN104167744A (en) | 2014-08-21 | 2014-08-21 | Intelligent temperature control low-voltage power capacitor |
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| Publication Number | Publication Date |
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| CN104167744A true CN104167744A (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410429170.1A Pending CN104167744A (en) | 2014-08-21 | 2014-08-21 | Intelligent temperature control low-voltage power capacitor |
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| CN (1) | CN104167744A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110733A (en) * | 2016-11-25 | 2018-06-01 | 上海千槐电气有限公司 | The temperature protective device of low voltage power capacitor |
| CN112486223A (en) * | 2020-12-10 | 2021-03-12 | 浙江天正电气股份有限公司 | Method and device for controlling temperature of capacitor |
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| CN201327995Y (en) * | 2008-12-19 | 2009-10-14 | 上海追日电气有限公司 | Reactive power compensation device with temperature control function |
| CN201478835U (en) * | 2009-06-12 | 2010-05-19 | 贵州天能电力高科技有限公司 | Intelligent capacitor used in reactive power compensation |
| CN101777771A (en) * | 2010-02-10 | 2010-07-14 | 湖北盛佳电器设备有限公司 | Working state monitoring device, capacitor and reactive power factor compensation device |
| CN201766368U (en) * | 2010-04-26 | 2011-03-16 | 南京业基电气设备有限公司 | Low-voltage reactive power compensation device |
| CN202737462U (en) * | 2012-06-01 | 2013-02-13 | 湖北西高电气设备有限公司 | Intelligent integrated power capacitor used for filtering compensation device |
| CN103401255A (en) * | 2013-08-16 | 2013-11-20 | 四川九成信息技术有限公司 | Automatic SVC (static var compensator) system of high-low voltage distribution network |
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2014
- 2014-08-21 CN CN201410429170.1A patent/CN104167744A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327995Y (en) * | 2008-12-19 | 2009-10-14 | 上海追日电气有限公司 | Reactive power compensation device with temperature control function |
| CN201478835U (en) * | 2009-06-12 | 2010-05-19 | 贵州天能电力高科技有限公司 | Intelligent capacitor used in reactive power compensation |
| CN101777771A (en) * | 2010-02-10 | 2010-07-14 | 湖北盛佳电器设备有限公司 | Working state monitoring device, capacitor and reactive power factor compensation device |
| CN201766368U (en) * | 2010-04-26 | 2011-03-16 | 南京业基电气设备有限公司 | Low-voltage reactive power compensation device |
| CN202737462U (en) * | 2012-06-01 | 2013-02-13 | 湖北西高电气设备有限公司 | Intelligent integrated power capacitor used for filtering compensation device |
| CN103401255A (en) * | 2013-08-16 | 2013-11-20 | 四川九成信息技术有限公司 | Automatic SVC (static var compensator) system of high-low voltage distribution network |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110733A (en) * | 2016-11-25 | 2018-06-01 | 上海千槐电气有限公司 | The temperature protective device of low voltage power capacitor |
| CN112486223A (en) * | 2020-12-10 | 2021-03-12 | 浙江天正电气股份有限公司 | Method and device for controlling temperature of capacitor |
| CN112486223B (en) * | 2020-12-10 | 2022-02-08 | 浙江天正电气股份有限公司 | Method and device for controlling temperature of capacitor |
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Application publication date: 20141126 |