CN204465005U - A kind of capacitance compensation device for low-voltage networks based on GPRS communication - Google Patents
A kind of capacitance compensation device for low-voltage networks based on GPRS communication Download PDFInfo
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- CN204465005U CN204465005U CN201520107130.5U CN201520107130U CN204465005U CN 204465005 U CN204465005 U CN 204465005U CN 201520107130 U CN201520107130 U CN 201520107130U CN 204465005 U CN204465005 U CN 204465005U
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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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The utility model discloses a kind of capacitance compensation device for low-voltage networks based on GPRS communication, comprise current transformer, voltage transformer and Capacitor banks, the output of current transformer and voltage transformer is connected with intelligent controller, intelligent controller is connected with GPRS controller, intelligent switch and fling-cut switch, GPRS controller is connected with remote controllers, and fling-cut switch is connected with Capacitor banks.This technology by GPRS controller and remote controllers UNICOM, can receive the various commands of remote controllers transmission to intelligent controller, and intelligent controller can completion system self-inspection automatically, also there will not be deadlock situation, can realize fine compensation; This technology carries out radio communication by GPRS controller, can meet remote real-time monitoring, and control intelligent controller by remote controllers, uses simply convenient.
Description
Technical field
The utility model relates to low voltage electric network field of energy-saving technology, particularly relates to a kind of capacitance compensation device for low-voltage networks based on GPRS communication.
Background technology
Traditional capacitance compensation device for low-voltage networks is the capacitor for electric power system and electrical equipment, and its structure is by any two pieces of metallic conductors and centre dielectric separates, thus constitutes a capacitor.The size of condenser capacitance is decided by the characteristic of dielectric between its physical dimension and two-plate, when capacitor uses under alternating voltage, Chang Yiqi reactive power represents the capacity of capacitor, and unit is method (F) or thousand methods (KF).And conventional low electrical network Electric capacity compensation device exists following defect: the first, the controller of compensation arrangement is easy to crash, thus causes uncompensation or overcompensation control, makes defencive function imperfection, and when controller once break down, complete machine lost efficacy; The second, conventional low electrical network Electric capacity compensation device all cannot meet the remote real-time monitoring to terminal data and the analyzing and processing to alert data; 3rd, conventional low electrical network Electric capacity compensation device complex structure, it is very inconvenient that installation and maintenance are exchanged; 4th, conventional low electrical network Electric capacity compensation device volume is large, and the adjustable of capacity is poor; 5th, mass-dispersion is large, loss is large and node is more, makes fault point also more; 6th; conventional low electrical network Electric capacity compensation device cannot the state information of Real-time Collection reactive-load compensation equipment; be not easy to people and understand circuit condition in real time; and conventional low electrical network Electric capacity compensation device can not realize excess temperature, the three-phase imbalance of capacitor, the protections such as phase and leakage current of breaking; do not have a self-diagnostic function, then can only by manually carrying out plant maintenance and maintenance when going wrong.
Utility model content
For deficiency of the prior art, the utility model provides one to have remote monitoring and control, has oneself detect and the communicating capacitance compensation device for low-voltage networks based on GPRS of fine compensation circuit.
To achieve these goals, technical solution adopted in the utility model is:
A kind of capacitance compensation device for low-voltage networks based on GPRS communication, comprise current transformer, voltage transformer and Capacitor banks, the output of current transformer (CT) and voltage transformer (PT) is connected with intelligent controller, intelligent controller is connected with GPRS controller, intelligent switch and fling-cut switch, GPRS controller is connected with remote controllers, GPRS controller is all kinds of control commands that can receive remote controllers, and send the instruction received to intelligent controller, performed by intelligent controller embedded software, fling-cut switch is connected with Capacitor banks.The utility model is used in 0.4KV low-voltage network based on the capacitance compensation device for low-voltage networks that GPRS communicates, by the current signal of current transformer access external electrical network, intelligent controller is accessed after current transformer (CT) conversion, intelligent controller calculates corresponding electric current, accordingly by the voltage signal of voltage transformer access external electrical network, intelligent controller is accessed after voltage transformer (PT) conversion, intelligent controller calculates corresponding voltage, and the power factor (PF) of residing electrical network is calculated in real time by intelligent controller, tri-phase unbalance factor, and calculate compensation rate with the deviation of the power factor reactive power set-point wherein arranged and current unbalance factor set-point, and export three-phase total compensation and single-phase point of benefit switching control signal according to compensation rate.According to the logical program preset, if automatic switching, then start fling-cut switch when power factor (PF) <0.9 (this 0.9 parameter is artificial setting, specifically arranges according to local power factor requirements), drop into Capacitor banks.Fling-cut switch excision Capacitor banks is then started when power factor (PF) >0.98 (this 0.98 parameter can be artificial setting, specifically arranges according to local power factor requirements); If manual mode, then carry out opening-closing capacitor bank by manual type hand push button.If remote mode, then controlled by remote controllers, intelligent controller is by the capacitance parameter in electrical network, switching state, load parameters etc. send to remote controllers, switching order is sent to GPRS controller by GPRS communication modes according to state by remote controllers, GPRS controller by information transmission to intelligent controller, intelligent controller performs related command after receiving switching order, the feedback acknowledgment of intelligent controller meeting simultaneously signal is to remote controllers, wherein intelligent controller can also process in real-time grid abnormal information initiatively send to remote controllers by GPRS controller, thus remote real-time monitoring and control can be realized.Capacitance compensation device for low-voltage networks based on GPRS communication can carry out reactive power automatic compensation, long-range switching, compensating parameter setting, compensate record queries and sectional power factor statistics, also by the comparison of capacitance current and actual Voting method, the on-line monitoring of capacitor is realized.
Described fling-cut switch is a group relay module, by being undertaken by intelligent controller controlling to be responsible for dropping into or excision Capacitor banks.
Described remote controllers are mobile device or computer.
Described Capacitor banks quantity is 1 or 2 or 3, and the quantity of Capacitor banks can be installed according to actual needs, during whether each Capacitor banks is connected to the grid by fling-cut switch control capacitor group.
The beneficial effects of the utility model: compared with prior art, this technology is by GPRS controller and remote controllers UNICOM, the various commands of remote controllers transmission can be received to intelligent controller, intelligent controller can completion system self-inspection automatically, also there will not be deadlock situation, can fine compensation be realized; This technology carries out radio communication by GPRS controller, can meet remote real-time monitoring, and control intelligent controller by remote controllers, uses simply convenient.
Accompanying drawing explanation
Fig. 1 is the utility model structure block diagram.
Embodiment
As shown in Figure 1, a kind of capacitance compensation device for low-voltage networks based on GPRS communication, comprise current transformer, voltage transformer and Capacitor banks, the output of current transformer (CT) and voltage transformer (PT) is connected with intelligent controller, intelligent controller is connected with GPRS controller, intelligent switch and fling-cut switch, GPRS controller is connected with remote controllers, GPRS controller is all kinds of control commands that can receive remote controllers, and send the instruction received to intelligent controller, performed by intelligent controller embedded software, fling-cut switch is connected with Capacitor banks, described fling-cut switch is a group relay module, by being undertaken by intelligent controller controlling to be responsible for dropping into or excision Capacitor banks, described remote controllers are mobile device or computer, described Capacitor banks quantity is 1 or 2 or 3, the quantity of Capacitor banks can be installed according to actual needs, during whether each Capacitor banks is connected to the grid by fling-cut switch control capacitor group.
The utility model decreases the energy consumption of 90% than conventional capacitor panel, volume-diminished about 50%, be conducive to saving the resources about 50% such as soil, copper material, silver-colored material, engineering plastics, the electricity such as incisal guide line, electric contact, device damages reduction about 50%, thus has good energy conservation and consumption reduction effects, this technology have employed synchro switch technology, carries out AC sampling by the CPU in intelligent controller to the sine wave of voltage, electric current, according to the change of power factor, when needs increase idle time, drops into capacitor at voltage over zero, when needs reduce idle time, at current zero-crossing point excision capacitor, thus achieve operating passing zero, avoid no-flashy-flow and impact and without switching overvoltage, improve reliability, this technology also achieves and single-phasely to compensate respectively, solves the problem of the unbalance conditions such as three-phase load, the intelligent controller of this technology connects remote controllers by GPRS controller, perform the various control commands sent of remote controllers, be not external under remote controllers or control failure condition, intelligent controller energy automatic network-building, produce a main frame, all the other are from machine, form a system and automatically carry out idle switching, if certain from machine fault, can automatically exit, and the normal work of not influential system, if hostdown, log off, just at residue meeting main frame that generation one is new automatically from machine, form a new system, substantially increase intelligence degree, can according to condenser capacity and the automatic formation control strategy of switching frequency, and also can adopt switching cycle by the capacitor equal to capacity, capacity and switching frequency employing optimum organization switching are taken into account to the capacitor that capacity does not wait.
Wherein intelligent switching control equipment cut-offs, measuring voltage, electric current, active power, reactive power, power factor can be detected in real time by intelligent controller, automatically can detect current transformer (CT) direction and product internal temperature, then action is carried out according to setting range order fling-cut switch, Capacitor banks is made automatically to carry out phase splitting compensation to power factor, be used for improving terminal voltage in circuit, its qualification rate reaches more than 90%.Due to factors such as ambient temperature is too high, busbar voltage is higher, harmonic wave, leakage currents, temperature in capacitor body is caused to raise, if do not taken measures, cause capacitor to rise tripe, finally explode, so imbed temperature sensor in every group capacitor, Intelligent control board CPU is utilized to gather temperature in capacitor body, set overheat protector definite value in software, out of service when automatically excising capacitor higher than protection definite value, guarantee that equipment is without prejudice; When temperature puts into operation automatically lower than protection definite value, it has overheat protector, also has overvoltage protection, overvoltage locking, o-volt protection, capacitor overcurrent protection and open-phase protection; Capacitance compensation device for low-voltage networks based on GPRS communication is configured with numeral method, indicator light and button, makes it possible to show various data, as the instruction of capacitor switching state, the instruction of protection act state, the instruction of Self-fault diagnosis type etc.; Be provided with three-phase total compensation and three-phase separate-supplement in capacitance compensation device for low-voltage networks based on GPRS communication, adapt to the requirement of three-phase equilibrium and three-phase imbalance compensation and mixed compensation completely.
The beneficial effects of the utility model: compared with prior art, this technology is by GPRS controller and remote controllers UNICOM, the various commands of remote controllers transmission can be received to intelligent controller, intelligent controller can completion system self-inspection automatically, also there will not be deadlock situation, can fine compensation be realized; This technology carries out radio communication by GPRS controller, can meet remote real-time monitoring, and control intelligent controller by remote controllers, uses simply convenient.
Claims (4)
1. the capacitance compensation device for low-voltage networks based on GPRS communication, comprise current transformer, voltage transformer and Capacitor banks, it is characterized in that, the output of current transformer and voltage transformer is connected with intelligent controller, intelligent controller is connected with GPRS controller, intelligent switch and fling-cut switch, GPRS controller is connected with remote controllers, and fling-cut switch is connected with Capacitor banks.
2. as claimed in claim 1 a kind of based on GPRS communication capacitance compensation device for low-voltage networks, it is characterized in that, described fling-cut switch is a group relay module.
3. as claimed in claim 1 a kind of based on GPRS communication capacitance compensation device for low-voltage networks, it is characterized in that, described remote controllers are mobile device or computer.
4. as claimed in claim 1 a kind of based on GPRS communication capacitance compensation device for low-voltage networks, it is characterized in that, described Capacitor banks quantity is 1 or 2 or 3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520107130.5U CN204465005U (en) | 2015-02-13 | 2015-02-13 | A kind of capacitance compensation device for low-voltage networks based on GPRS communication |
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| CN201520107130.5U CN204465005U (en) | 2015-02-13 | 2015-02-13 | A kind of capacitance compensation device for low-voltage networks based on GPRS communication |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207230A (en) * | 2015-09-23 | 2015-12-30 | 国家电网公司 | Reactive power and harmonic protection automatic control switch |
| CN108649588A (en) * | 2018-06-25 | 2018-10-12 | 湖北工业大学 | A kind of communication-type intelligent powerless compensation comprehensive treatment device |
| CN108832637A (en) * | 2018-06-25 | 2018-11-16 | 湖北工业大学 | A kind of communication-type Intelligent Reactive Compensating Controller and its operation/cutting method |
| CN109696863A (en) * | 2018-11-16 | 2019-04-30 | 平高集团有限公司 | A kind of distributed intelligence switch and its control system |
| CN111650547A (en) * | 2020-06-12 | 2020-09-11 | 邹宇 | Portable power detection mutual inductor and performance evaluation system and method |
-
2015
- 2015-02-13 CN CN201520107130.5U patent/CN204465005U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207230A (en) * | 2015-09-23 | 2015-12-30 | 国家电网公司 | Reactive power and harmonic protection automatic control switch |
| CN108649588A (en) * | 2018-06-25 | 2018-10-12 | 湖北工业大学 | A kind of communication-type intelligent powerless compensation comprehensive treatment device |
| CN108832637A (en) * | 2018-06-25 | 2018-11-16 | 湖北工业大学 | A kind of communication-type Intelligent Reactive Compensating Controller and its operation/cutting method |
| CN109696863A (en) * | 2018-11-16 | 2019-04-30 | 平高集团有限公司 | A kind of distributed intelligence switch and its control system |
| CN109696863B (en) * | 2018-11-16 | 2021-09-24 | 平高集团有限公司 | Distributed intelligent switch and control system thereof |
| CN111650547A (en) * | 2020-06-12 | 2020-09-11 | 邹宇 | Portable power detection mutual inductor and performance evaluation system and method |
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