CN101834440A - Research method of novel high-efficient power supply equipment for special needs for low-voltage distribution system - Google Patents
Research method of novel high-efficient power supply equipment for special needs for low-voltage distribution system Download PDFInfo
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- CN101834440A CN101834440A CN200910047273A CN200910047273A CN101834440A CN 101834440 A CN101834440 A CN 101834440A CN 200910047273 A CN200910047273 A CN 200910047273A CN 200910047273 A CN200910047273 A CN 200910047273A CN 101834440 A CN101834440 A CN 101834440A
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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
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Abstract
The invention relates to a research method of novel high-efficient power supply equipment for special needs for a low-voltage distribution system. The research method comprises theoretical analysis and experiment research. Compared with the prior art, the invention has the functional characteristics of high power supply reliability, good power quality of power supply and meeting of a plurality of users and demands and has the advantages of inhibiting harmonic pollution of a power system and resonance of power system parallel compensation equipment, and the like.
Description
Technical field
The present invention relates to new and effective " special procuring " power supply unit, relate in particular to the research method of the new and effective special-procurement power supply equipment that is used for low-voltage distribution system.
Background technology
At present, because there are bigger difference in the supply frequency of various countries' (or each is intercontinental) and voltage levvl, and each area also exists certain difference to the power stability and the power supply quality of power supply, along with closing on day by day of the Shanghai 2010 World Fair, according to the difference (various device has different tolerance limits to the power supply reliability and the quality of power supply) that the exhibition equipment in various countries requires the power supply reliability and the power supply quality of power supply, this makes the powerup issue of each country museum become distinct issues.
Meanwhile, because come into operation (as the frequency control equipment and the arc furnace etc.) of a large amount of nonlinear-loads and impact load, the alternating current input power supplying electric current exists a large amount of harmonic waves and reactive power demand, this is with the safe operation and the economical operation of serious harm low-voltage distribution system, increase the line loss of distribution system, this will have influence on " save energy and reduce the cost " realization of index of my low voltage power distribution network.
In addition, a large amount of critical load center (for example bank, hospital etc.) is owing to adopt a large amount of nonlinear-loads (computer, desk lamp with dimmer switch etc.), make the distribution line quality of power supply seriously descend, meanwhile the main power consumption equipment of the part of these loads (data center, measuring equipment) is very harsh to the requirement of the quality of power supply, answer this when considering how to avoid harmonic current that electrical network is impacted, also will consider the influence how the electrical network power quality problem moves precision equipment.
In addition, certain customers have adopted novel energy generating equipment (solar energy and wind energy etc.) voluntarily, in order to make full use of new forms of energy, design requirement is after fully satisfying the customer charge demand, the part electric energy should feed back to supply network, therefore adopt novel " special " power supply unit of any topological structure can satisfy new forms of energy Access Network and user's power demands simultaneously, become an important research content.
Above-mentioned numerous actual condition illustrated, is an important comprehensive study content about improving the power supply reliability and the power supply quality of power supply, effectively reducing technology such as distribution line power loss, new forms of energy and energy storage device Access Network and " specific demand " power supply service.
Summary of the invention
Purpose of the present invention is exactly in order to overcome the defective that above-mentioned prior art exists, and a kind of research method of the stable new and effective special-procurement power supply equipment that is used for low-voltage distribution system is provided.
Purpose of the present invention can be achieved through the following technical solutions: be used for the research method of the new and effective special-procurement power supply equipment of low-voltage distribution system, it is characterized in that, this research method comprises theory analysis, experimental study two parts;
Described theory analysis comprises:
(1) by the electric system simulation special-purpose software, the topological structure and the control strategy of emulation new and effective " special procuring " power supply unit are optimized the configuration of related elements parameter and Control Parameter, implement device master inversion part low switching frequency operating scheme;
(2) adopt the low-loss power switching device, improve the energy conversion efficiency of device and the thermal stability of device;
(3) make up the dynamic simulation experiment network, form industrial model machine, carry out dynamic analog test and field test with " special procuring " function of supplying power;
(4) set up early-stage Study and the conceptual design that the new forms of energy access way is finished in new forms of energy access and energy storage device base;
Described experimental study comprises:
(1) make up master controller based on high-performance digital signal processor and extensive field-programmable gate leve array, implement device four-quadrant power conversion function provides the power supply of the high stability and the high quality of power supply for the user;
(2) foundation is based on the power supply quality of power supply and meritorious, reactive power monitoring, communication, prediction and improvement general controller of high-performance digital signal processor control system;
(3) by simulation, emulation and experiment, the topological structure of research power supply network, and feeding device is to the influence of power supply network topological structure and to the raising effect of the power supply quality of power supply;
(4) analytical equipment be in failure operation in electric power system, the running status when having big degree of asymmetry and bigger load impact, solve the uneven problem of bringing for power-supply system stable state and transient state of three-phase load;
(5) by the emc issue between emulation and test solution high power contravariant device, logic controller and the control power supply;
(6) realize special-procurement power supply equipment access network technology, control strategy and prototype devices by numerical simulation and dynamic simulation experiment.
Compared with prior art, the present invention has power supply reliability height, good, the functional characteristics that satisfies multi-user and many demands of the power supply quality of power supply, and can suppress advantages such as Harmonious Waves in Power Systems pollution, electric power system shunt compensation equipment resonance.
Embodiment
The present invention will be further described below in conjunction with specific embodiment.
The research method that the present invention adopts is the method that theory analysis and experimental study combine, and is specific as follows:
1. by the electric system simulation special-purpose software, the topological structure and the control strategy of emulation new and effective " special procuring " power supply unit are optimized the configuration of related elements parameter and Control Parameter, implement device master inversion part low switching frequency operating scheme;
2. adopt the low-loss power switching device, improve the energy conversion efficiency of device and the thermal stability of device;
3. make up the dynamic simulation experiment network, form industrial model machine, carry out dynamic analog test and field test with " special procuring " function of supplying power;
4. set up new forms of energy access and energy storage device base and finish the early-stage Study and the conceptual design of new forms of energy access way;
Experimental program
1. make up Tandem Inverter master controller based on high-performance digital signal processor (Digital Signal Processor DSP) and extensive field-programmable gate leve array (Field Programable Gate Array-FPGA), implement device four-quadrant power conversion function provides the power supply of the high stability and the high quality of power supply for the user;
2. set up the power supply quality of power supply and meritorious, reactive power monitoring, communication, prediction and improvement general controller based on high-performance digital signal processor (DSP) control system;
3. by simulation, emulation and experiment, the topological structure of research power supply network, and feeding device is to the influence of power supply network topological structure and to the raising effect of the power supply quality of power supply;
Analytical equipment be in failure operation in electric power system, the running status when having big degree of asymmetry and bigger load impact, solve the uneven problem of bringing for power-supply system stable state and transient state of three-phase load;
5. by the emc issue between emulation and test solution high power contravariant device, logic controller and the control power supply.
6. realize special-procurement power supply equipment access network technology, control strategy and prototype devices by numerical simulation and dynamic simulation experiment.
Claims (1)
1. be used for the research method of the new and effective special-procurement power supply equipment of low-voltage distribution system, it is characterized in that, this research method comprises theory analysis, experimental study two parts;
Described theory analysis comprises:
(1) by the electric system simulation special-purpose software, the topological structure and the control strategy of emulation new and effective " special procuring " power supply unit are optimized the configuration of related elements parameter and Control Parameter, implement device master inversion part low switching frequency operating scheme;
(2) adopt the low-loss power switching device, improve the energy conversion efficiency of device and the thermal stability of device;
(3) make up the dynamic simulation experiment network, form industrial model machine, carry out dynamic analog test and field test with " special procuring " function of supplying power;
(4) set up early-stage Study and the conceptual design that the new forms of energy access way is finished in new forms of energy access and energy storage device base;
Described experimental study comprises:
(1) make up master controller based on high-performance digital signal processor and extensive field-programmable gate leve array, implement device four-quadrant power conversion function provides the power supply of the high stability and the high quality of power supply for the user;
(2) foundation is based on the power supply quality of power supply and meritorious, reactive power monitoring, communication, prediction and improvement general controller of high-performance digital signal processor control system;
(3) by simulation, emulation and experiment, the topological structure of research power supply network, and feeding device is to the influence of power supply network topological structure and to the raising effect of the power supply quality of power supply;
(4) analytical equipment be in failure operation in electric power system, the running status when having big degree of asymmetry and bigger load impact, solve the uneven problem of bringing for power-supply system stable state and transient state of three-phase load;
(5) by the emc issue between emulation and test solution high power contravariant device, logic controller and the control power supply;
(6) realize special-procurement power supply equipment access network technology, control strategy and prototype devices by numerical simulation and dynamic simulation experiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047273A CN101834440A (en) | 2009-03-09 | 2009-03-09 | Research method of novel high-efficient power supply equipment for special needs for low-voltage distribution system |
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| CN200910047273A CN101834440A (en) | 2009-03-09 | 2009-03-09 | Research method of novel high-efficient power supply equipment for special needs for low-voltage distribution system |
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| CN101834440A true CN101834440A (en) | 2010-09-15 |
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| CN200910047273A Pending CN101834440A (en) | 2009-03-09 | 2009-03-09 | Research method of novel high-efficient power supply equipment for special needs for low-voltage distribution system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235864A (en) * | 2013-05-13 | 2013-08-07 | 上海工程技术大学 | Low voltage apparatus accessory vibration impact actual-effect simulation analyzing method |
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2009
- 2009-03-09 CN CN200910047273A patent/CN101834440A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235864A (en) * | 2013-05-13 | 2013-08-07 | 上海工程技术大学 | Low voltage apparatus accessory vibration impact actual-effect simulation analyzing method |
| CN103235864B (en) * | 2013-05-13 | 2015-08-19 | 上海工程技术大学 | A kind of low-voltage electrical apparatus accessory vibratory impulse actual effect simulating analysis |
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Application publication date: 20100915 |