CN103166229A - Domain dividing method of regional power grid intelligent reactive power optimization system - Google Patents

Domain dividing method of regional power grid intelligent reactive power optimization system Download PDF

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Publication number
CN103166229A
CN103166229A CN2011104057908A CN201110405790A CN103166229A CN 103166229 A CN103166229 A CN 103166229A CN 2011104057908 A CN2011104057908 A CN 2011104057908A CN 201110405790 A CN201110405790 A CN 201110405790A CN 103166229 A CN103166229 A CN 103166229A
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China
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territory
domain
power grid
reactive power
reactive
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CN2011104057908A
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Chinese (zh)
Inventor
孙士民
吕延军
马荣琳
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SHANDONG DISHENG ELECTRICAL CO Ltd
Smart Grid Research Institute of SGCC
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SHANDONG DISHENG ELECTRICAL CO Ltd
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Priority to CN2011104057908A priority Critical patent/CN103166229A/en
Publication of CN103166229A publication Critical patent/CN103166229A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30Reactive power compensation

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Abstract

The invention discloses a domain dividing method of a regional power grid intelligent reactive power optimization system. A power supply power grid is divided into a distribution transform domain, a wire domain, a station domain and a region domain. Layers of domains in the regional power grid and all reactive power optimization compensation terminal devices automatically and independently run and keep reactive power balance of all compensation nodes. Besides, systems automatically and independently carry out statistical analysis and optimal control in sequence according to the optimal sequence of the distribution transform domain, the wire domain, the station domain and the region domain, and therefore step-by-step reactive power balance in sequence and optimal compensation are achieved.

Description

A kind of minute territory method of regional power grid Intelligence Reactive Power optimization system
Affiliated technical field
The present invention relates to a kind of minute territory method of regional power grid Intelligence Reactive Power optimization system, belong to the power transmission and distribution technical field.
Background technology
Follow the fast development of power industry, electric power networks enlarges rapidly, Voltage-stabilizing Problems becomes increasingly conspicuous, control under the survey region reactive power optimization state of emergency divides territory and control strategy, to guaranteeing quality of voltage, improve the generation that system voltage is stable, avoid pernicious voltage collapse accident to have the meaning of particular importance.The simplest electric power networks subregion is to divide according to Utilities Electric Co. under region or electrical network at present, but only consider the natural quality of electrical network and do not consider that the resulting subregion of electrical characteristic of electrical network is irrational, do not consider whether reactive capability in subregion satisfies the problem of the voltage-controlled needs of regional interior nodes, can't guarantee power supply node in each zone to the control ability of load bus voltage and reactive power should in-situ balancing principle.
Goal of the invention and content
The invention provides a kind of minute territory method of regional power grid Intelligence Reactive Power optimization system, distribution network is divided into four layer regions: distribution transforming territory, line territory, the territory of standing, zone.System is according to each layer region: territory, the distribution transforming territory-line-territory-zone of standing, automatically add up successively separately, analysis, optimal control, and reach successively reactive balance step by step, reactive power compensation is optimum.
For achieving the above object, the technology path that the present invention takes is as follows:
One station power distribution transformer becomes high pressure 10kV or 20kV into low pressure 400V, low pressure 400V has some branches (220v or 380v) connection to various electrical appliances, or every branch has again some branched lines to be connected to various electrical appliances, forms the power supply area (be called for short: distribution transforming territory) of a distribution transformer.
Article one, 10kV or 20kV connection have some station power distribution transformers, be distributed to each electricity consumption place, distribution transformer becomes high pressure 10kV or 20kV into low pressure 400V, supply with various electrical appliance electricity consumptions by (220v or 380v) transmission line again, forms a 10kV or 20kV line powering zone (abbreviation: line territory).
There are some 10kV or 20kV outlet line supplying power for outside in a transformer station, every 10kV or 20kV connection have some station power distribution transformers, be distributed to each electricity consumption place, distribution transformer becomes high pressure 10kV or 20kV into the various electrical appliance electricity consumptions of low pressure 400V supply, forms transformer station's power supply area and (is called for short: the territory of standing).
By several transformer stations under a scheduling station and this main website management and control, each transformer station has some outlet lines to connect next stage transformer stations and some 10kV or 20kV outlet line, every 10kV or 20kV supply line are connected with again some station power distribution transformers, distribution transformer becomes high pressure 10kV or 20kV into the various electrical appliance electricity consumptions of low pressure 400V supply, form the supply network in a zone, this regional supply network is regional power grid.A regional power grid comprises several territories, station, and territory, a station comprises again several lines territories, and line territory comprises again several distribution transformings territories.
Each layer region in regional power grid and all Reactive Compensation terminal installations, independent operation automatically, keep respectively compensating the node reactive balance separately.System is according to each layer region: territory, the distribution transforming territory-line-territory-zone of standing, automatically add up successively separately, analysis, optimal control, and to reactive balance step by step successively, reactive power compensation is optimum.
Each layer region, part or certain node, compensation terminal plant failure, power supply facilities fault or power load increase suddenly when surpassing the expectation, the compensation terminal device of this layer region control centre other minimum distance of Automatic dispatching carries out the overcompensation action, compensate this part or node idle, make idle mobile minimum in this layer region, reactive power compensation is optimum.In regional power grid, after first power transmission or reclosing, territory, the distribution transforming territory-line-territory-zone of standing, each zone be reactive balance step by step successively, and compensation is optimum.
Description of drawings:
Fig. 1 is a kind of minute territory schematic diagram of regional power grid Intelligence Reactive Power optimization system.
A regional power grid comprises several territories, station, and territory, a station comprises again several lines territories, and line territory comprises again several distribution transformings territories.System is according to each layer region: territory, the distribution transforming territory-line-territory-zone of standing, automatically add up successively separately, analysis, optimal control, and to reactive balance step by step successively, reactive power compensation is optimum.

Claims (1)

1. minute territory method of a regional power grid Intelligence Reactive Power optimization system, it is characterized in that: distribution network is divided into four layer regions: distribution transforming territory, line territory, the territory of standing, zone, each layer region in regional power grid and all Reactive Compensation terminal installations, independent operation automatically separately, keep respectively compensating the node reactive balance, and system according to the optimization in territory, the distribution transforming territory-line-territory-zone of stand sequentially automatically add up successively separately, analysis, optimal control, reach successively reactive balance step by step, compensation is optimum.
CN2011104057908A 2011-12-08 2011-12-08 Domain dividing method of regional power grid intelligent reactive power optimization system Pending CN103166229A (en)

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CN2011104057908A CN103166229A (en) 2011-12-08 2011-12-08 Domain dividing method of regional power grid intelligent reactive power optimization system

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CN103166229A true CN103166229A (en) 2013-06-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109217308A (en) * 2018-10-23 2019-01-15 重庆重开电气有限公司 Energy saving and efficiency increasing system based on power monitoring
CN110601190A (en) * 2019-09-23 2019-12-20 国网辽宁省电力有限公司鞍山供电公司 Regional power grid operation domain division method
CN114079289A (en) * 2020-08-21 2022-02-22 济南爱迪电气设备有限公司 Regional distribution network multi-technology loss reduction energy-saving system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090200994A1 (en) * 2008-02-12 2009-08-13 Enphase Energy, Inc. Method and apparatus for distributed var compensation
CN101540505A (en) * 2009-01-09 2009-09-23 南京南瑞继保电气有限公司 Building method of multistage multi-region interconnected network data model
CN102769294A (en) * 2011-05-06 2012-11-07 山东迪生电气股份有限公司 Method for intelligently, reactively and optimally compensating voltage of regional power grid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090200994A1 (en) * 2008-02-12 2009-08-13 Enphase Energy, Inc. Method and apparatus for distributed var compensation
CN101540505A (en) * 2009-01-09 2009-09-23 南京南瑞继保电气有限公司 Building method of multistage multi-region interconnected network data model
CN102769294A (en) * 2011-05-06 2012-11-07 山东迪生电气股份有限公司 Method for intelligently, reactively and optimally compensating voltage of regional power grid

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109217308A (en) * 2018-10-23 2019-01-15 重庆重开电气有限公司 Energy saving and efficiency increasing system based on power monitoring
CN110601190A (en) * 2019-09-23 2019-12-20 国网辽宁省电力有限公司鞍山供电公司 Regional power grid operation domain division method
CN110601190B (en) * 2019-09-23 2023-06-02 国网辽宁省电力有限公司鞍山供电公司 Regional power grid operation domain division method
CN114079289A (en) * 2020-08-21 2022-02-22 济南爱迪电气设备有限公司 Regional distribution network multi-technology loss reduction energy-saving system

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Inventor after: Sun Shimin

Inventor after: Lv Yanjun

Inventor after: Ma Ronglin

Inventor after: Jing Ping

Inventor before: Sun Shimin

Inventor before: Lv Yanjun

Inventor before: Ma Ronglin

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Address after: 250400 No. 8, Central Road, Pingyin Industrial Park, Shandong, Ji'nan

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Application publication date: 20130619