CN104090156A - Distributed power supply system online monitoring method - Google Patents
Distributed power supply system online monitoring method Download PDFInfo
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- CN104090156A CN104090156A CN201410278962.3A CN201410278962A CN104090156A CN 104090156 A CN104090156 A CN 104090156A CN 201410278962 A CN201410278962 A CN 201410278962A CN 104090156 A CN104090156 A CN 104090156A
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Abstract
The invention discloses a distributed power supply system online monitoring method. The distributed power system online monitoring method comprises the steps of performing distributed power supply output monitoring and uniformly converting electric energy provided by a distributed power supply into direct current; then using an inverter to convert the direct current provided by the distributed power supply into alternating current to be transmitted to a power utilization load unit and using the inverter to convert the direct current into alternating current to be transmitted to a public power grid after the direct current provided by the distributed power supply passes through an electric energy measuring device; performing the distributed power supply input monitoring, namely using a rectifier to convert electric energy provided by the public power grid into the direct current to pass through the electric energy measuring device, and then using the inverter to convert alternating current to be transmitted to the power utilization load unit. The distributed power supply system online monitoring method can achieve online monitoring of electric energy flows on a power transmission line, and accordingly avoids the discrepancy problem of data obtained two associated power supply systems when power supply systems in the system automatically perform electric energy flow monitoring.
Description
Technical field
The present invention relates to a kind of distributed power supply system on-line monitoring method, belong to electric power network transmission of electricity monitoring method technical field.
Background technology
The electric energy that solar electrical energy generation, wind-power electricity generation, small-sized water power etc. utilize natural resources to produce has advantages of environmental protection, can effectively tackle increasingly serious in recent years energy shortage and the situation of environmental pollution.But, common its unit capacity of above-mentioned generating set is less, and the total installation of generating capacity of power station integral body is not high yet, is not suitable for the conveying of long distance, normally preferentially supply with local user, but also need to carry to neighboring area by public electric wire net for the electric energy of local user's oversupply; In addition,, when power supply can not meet local user's needs completely, also need to allocate electric energy to meet consumers' demand by public electric wire net.It is necessary that the electric energy circulation of above-mentioned distributed electrical source power supply system is carried out to on-line monitoring, so that each electric power system is understood the cost absorbing and benefit of our unit.In prior art, the monitoring of above-mentioned electric energy circulation normally each electric power system is carried out voluntarily in native system, and in two electric power systems that often cause being associated, there is any discrepancy for drawn data.
Summary of the invention
The deficiency that the present invention exists for prior art just, provides a kind of distributed power supply system on-line monitoring method, can on transmission line of electricity, realize the on-line monitoring of electric energy circulation.
For addressing the above problem, the technical solution used in the present invention is as follows:
A distributed power supply system on-line monitoring method, comprising: distributed power source output monitoring: the electric energy unification that distributed power source is provided transfers direct current to; Then direct current distributed power source being provided transfers alternating current to by inverter and is delivered to electricity consumption loading unit, and the direct current simultaneously distributed power source being provided is by after electric energy measuring equipment, then by inverter, transfers alternating current to and be delivered to public electric wire net;
Distributed power source Input Monitor Connector: the electric energy that public electric wire net is provided transfers to after direct current by electric energy measuring equipment by rectifier, and then by inverter, transfer alternating current to and be delivered to electricity consumption loading unit.
Improvement as technique scheme, distributed power source in described distributed power source output monitoring comprises distributed DC power supply and distributed AC power, the direct current that described distributed DC power supply provides carries out pressure regulation by dc chopper and harmonic wave suppresses to process, and the alternating current that described distributed AC power provides transfers direct current to by rectifier.
As the improvement of technique scheme, in described distributed power source output monitoring, by one-way circuit is set, the electric energy of public electric wire net cannot be carried to electricity consumption loading unit; In described distributed power source Input Monitor Connector, by one-way circuit is set, electric energy cannot be carried by distributed power source to public electric wire net.Said process be set be electric energy in order to prevent public electric wire net when distributed power source output monitoring to electricity consumption loading unit carry or during at distributed power source Input Monitor Connector electric energy by distributed power source, to public electric wire net, carry and cause electric energy measuring equipment metering to make mistakes.
Compared with prior art, implementation result of the present invention is as follows in the present invention:
Distributed power supply system on-line monitoring method of the present invention, can on transmission line of electricity, realize the on-line monitoring of electric energy circulation, thus the drawn data problem that there is any discrepancy in two electric power systems that occur being associated while avoiding each electric power system to carry out voluntarily electric energy circulation monitoring in native system.
Accompanying drawing explanation
Fig. 1 is distributed power supply system on-line monitoring method embodiment structural representation of the present invention;
Fig. 2 is the structural representation of one-way circuit in distributed power supply system on-line monitoring method embodiment of the present invention.
Embodiment
Content of the present invention is described below in conjunction with specific embodiments.
Distributed power supply system on-line monitoring method of the present invention comprise distributed power source output monitoring and and distributed power source Input Monitor Connector:
Distributed power source output monitoring: the electric energy unification that distributed power source is provided transfers direct current to; Then direct current distributed power source being provided transfers alternating current to by inverter and is delivered to electricity consumption loading unit, and the direct current simultaneously distributed power source being provided is by after electric energy measuring equipment, then by inverter, transfers alternating current to and be delivered to public electric wire net; Distributed power source in described distributed power source output monitoring comprises distributed DC power supply and distributed AC power, the direct current that described distributed DC power supply provides carries out pressure regulation by dc chopper and harmonic wave suppresses to process, and the alternating current that described distributed AC power provides transfers direct current to by rectifier; In described distributed power source output monitoring, by one-way circuit is set, the electric energy of public electric wire net cannot be carried to electricity consumption loading unit.
Distributed power source Input Monitor Connector: the electric energy that public electric wire net is provided transfers to after direct current by electric energy measuring equipment by rectifier, and then by inverter, transfer alternating current to and be delivered to electricity consumption loading unit.In described distributed power source Input Monitor Connector, by one-way circuit is set, electric energy cannot be carried by distributed power source to public electric wire net.
The structure of above-mentioned distributed power supply system on-line monitoring method embodiment can be as depicted in figs. 1 and 2, comprise: public electric wire net 31, distributed DC power supply 21, distributed AC power 11, electricity consumption loading unit 41, described distributed DC power supply 21 connects rear formation the first distribution power circuit of dc chopper 22, and described distributed AC power 11 connects rear formation the second distribution power circuit of the first rectifier 12; After described the first distribution power circuit and described the second distribution power circuit parallel connection, connect and compose distributed electrical source follower circuit with described public electric wire net 31, in described distributed electrical source follower circuit, be provided with the first one-way circuit 5, the first electric energy measuring equipment 34 and the first inverter 33; After described the first distribution power circuit and described the second distribution power circuit parallel connection, connect and compose distributed power source input circuit with described public electric wire net 31, in described distributed power source input circuit, be provided with the second one-way circuit 6, the second electric energy measuring equipment 35 and the second rectifier 32; Described distributed electrical source follower circuit and described distributed power source input circuit be connected in parallel described public electric wire net 31 and described electricity consumption loading unit 41, and be provided with the second inverter 42 between described electricity consumption loading unit 41 and described distributed electrical source follower circuit and described distributed power source input circuit.
When distributed power source supply local user is superfluous, thereby the dump energy that distributed DC power supply 21 and distributed AC power 11 produces enters public electric wire net 31 by distributed electrical source follower circuit and carries to neighboring area, and the first electric energy measuring equipment 34 can on-line monitoring distributed DC power supply 21 and the power capacity carried to public electric wire net 31 of distributed AC power 11.When distributed power source supply local user is not enough, public electric wire net 31 is by the distributed power source input circuit electric energy that replenishes the supply, and the power capacity can on-line monitoring public electric wire net 31 carried of the second electric energy measuring equipment 35.
Particularly, described the first one-way circuit 5 and/or described the second one-way circuit 6 comprise field effect transistor 52 and impedance circuit 53, the drain electrode 521 of described field effect transistor 52 is the first end 51 of described the first one-way circuit 5 and/or described the second one-way circuit 6, and the source electrode 522 of described field effect transistor 52 connects the second end 54 of described impedance circuit 53 grid 523 described the first one-way circuit 5 of formation in parallel rear and described field effect transistor 52 and/or described the second one-way circuit 6.When electric current flows to the second end 54 from described first end 51, the voltage of described impedance circuit 53 is greater than the on state threshold voltage of described field effect transistor 52, described field effect transistor 52 conductings, electric current flow through completely described field effect transistor 52 raceway groove and without its body diode; When electric current flows to first end 51 from described the second end 54, when described field effect transistor 52 is turn-offed, its body diode is anti-inclined to one side.
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 (4)
1. a distributed power supply system on-line monitoring method, is characterized in that, comprising:
Distributed power source output monitoring: the electric energy unification that distributed power source is provided transfers direct current to; Then direct current distributed power source being provided transfers alternating current to by inverter and is delivered to electricity consumption loading unit, and the direct current simultaneously distributed power source being provided is by after electric energy measuring equipment, then by inverter, transfers alternating current to and be delivered to public electric wire net;
Distributed power source Input Monitor Connector: the electric energy that public electric wire net is provided transfers to after direct current by electric energy measuring equipment by rectifier, and then by inverter, transfer alternating current to and be delivered to electricity consumption loading unit.
2. distributed power supply system on-line monitoring method as claimed in claim 1, it is characterized in that, distributed power source in described distributed power source output monitoring comprises distributed DC power supply and distributed AC power, the direct current that described distributed DC power supply provides carries out pressure regulation by dc chopper and harmonic wave suppresses to process, and the alternating current that described distributed AC power provides transfers direct current to by rectifier.
3. distributed power supply system on-line monitoring method as claimed in claim 1, is characterized in that, in described distributed power source output monitoring, by one-way circuit is set, the electric energy of public electric wire net cannot be carried to electricity consumption loading unit; In described distributed power source Input Monitor Connector, by one-way circuit is set, electric energy cannot be carried by distributed power source to public electric wire net.
4. distributed power supply system on-line monitoring method as claimed in claim 3, it is characterized in that, described one-way circuit comprises field effect transistor (52) and impedance circuit (53), the first end (51) that the drain electrode (521) of described field effect transistor (52) is described one-way circuit, the source electrode (522) of described field effect transistor (52) connects second end (54) of the described one-way circuit of described impedance circuit (53) grid (523) rear and described field effect transistor (52) formation in parallel.
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| CN201410278962.3A CN104090156A (en) | 2014-06-22 | 2014-06-22 | Distributed power supply system online monitoring method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897992A (en) * | 2015-06-08 | 2015-09-09 | 湖南城市学院 | Distributed power supply disturbance classification device and on-line detection method thereof |
| CN106597047A (en) * | 2016-12-14 | 2017-04-26 | 国家电网公司 | Metering system and method having self-contained power supply user pi access system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271281A (en) * | 2006-03-30 | 2007-10-18 | Daihen Corp | Electric power monitoring system |
| JP2011002363A (en) * | 2009-06-19 | 2011-01-06 | Panasonic Electric Works Denro Co Ltd | Electric power monitoring system |
| CN102751788A (en) * | 2012-07-10 | 2012-10-24 | 上海市电力公司 | Distribution-type power supply monitoring system |
| CN103414215A (en) * | 2013-09-10 | 2013-11-27 | 南车株洲电力机车研究所有限公司 | Distributed power supply system |
-
2014
- 2014-06-22 CN CN201410278962.3A patent/CN104090156A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271281A (en) * | 2006-03-30 | 2007-10-18 | Daihen Corp | Electric power monitoring system |
| JP2011002363A (en) * | 2009-06-19 | 2011-01-06 | Panasonic Electric Works Denro Co Ltd | Electric power monitoring system |
| CN102751788A (en) * | 2012-07-10 | 2012-10-24 | 上海市电力公司 | Distribution-type power supply monitoring system |
| CN103414215A (en) * | 2013-09-10 | 2013-11-27 | 南车株洲电力机车研究所有限公司 | Distributed power supply system |
Non-Patent Citations (2)
| Title |
|---|
| 袁建华: ""分布式光伏发电微电网供能系统研究"", 《中国博士学位论文全文数据库•工程科技Ⅱ辑》 * |
| 袁建华: ""分布式光伏发电微电网供能系统研究"", 《中国博士学位论文全文数据库•工程科技Ⅱ辑》, 15 June 2012 (2012-06-15) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897992A (en) * | 2015-06-08 | 2015-09-09 | 湖南城市学院 | Distributed power supply disturbance classification device and on-line detection method thereof |
| CN106597047A (en) * | 2016-12-14 | 2017-04-26 | 国家电网公司 | Metering system and method having self-contained power supply user pi access system |
| CN106597047B (en) * | 2016-12-14 | 2019-03-22 | 国家电网公司 | A kind of metering system and method with power autonomous user ∏ access system |
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