CN105552919B - 电力系统备自投动作后主变过载处理方法 - Google Patents

电力系统备自投动作后主变过载处理方法 Download PDF

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CN105552919B
CN105552919B CN201610117142.5A CN201610117142A CN105552919B CN 105552919 B CN105552919 B CN 105552919B CN 201610117142 A CN201610117142 A CN 201610117142A CN 105552919 B CN105552919 B CN 105552919B
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overload
main transformer
auto restart
prepared auto
load
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CN105552919A (zh
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成江东
潘凯岩
赵勇
高贞彦
刘仲尧
王传琳
董文杰
刘尚伟
李绥荣
徐艳
赵友国
阎同东
田志强
黄明辉
吴昌川
高天亮
王伟
闫雷
郭丽涛
边春雨
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Dongfang Electronics Co Ltd
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Dongfang Electronics Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/001Methods to deal with contingencies, e.g. abnormalities, faults or failures
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • Y04S20/222Demand response systems, e.g. load shedding, peak shaving

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Transformers (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

本发明公开了一种电力系统备自投动作后主变过载处理方法,主要包括自动检测备自投是否动作、检测是否有主变过载、根据过载严重程度对过载主变进行排序、根据备自投等级和过载最严重主变等级给出切除负荷策略、根据过载最严重主变过载程度确定切除负荷的数量以及按负荷重要程度对负荷切除次序进行排序等步骤。本发明方法自动判断备自投动作情况和主变的过载情况,实现了电网运行情况的实时检测,节省了调度员的工作量,并提高了响应速度和效率。

Description

电力系统备自投动作后主变过载处理方法
技术领域
本发明涉及一种电力系统主变过载的处理方法,属于电力系统自动化领域。
背景技术
随着国家经济的不断发展,电网系统不断增大扩容,电力系统网络结构日益复杂,各种引发备自投动作的情形也逐渐增多。备自投动作后,常造成某些变压器负荷剧增而过载,给电网运行带来新的安全威胁。当备自投动作后变压器发生过载时,需要及时找出过载变压器的相关负荷进行切除,使变压器的负荷处于正常水平。
现有技术是由调度员负责过载后的负荷切除工作。但电网结构复杂且规模庞大,调度员很难在短时间作出正确的判断并进行切除,响应速度慢、效率低,且一旦判断失误则易酿成重大事故。
发明内容
本发明所要解决的技术问题是,提供一种电力系统备自投动作后主变过载处理方法,在备自投动作引起主变过载时及时切除主变的负荷。
本发明的技术方案如下:
电力系统备自投动作后主变过载处理方法,包括以下步骤:
(1)自动检测备自投是否动作,若备自投有动作,则进一步检测是否有主变过载;并且自动搜索220kV主变和110kV主变的供用电关系;
(2)若检测到有主变出现过载,根据过载严重程度对过载主变进行排序,得出过载最严重的主变;
(3)若动作备自投为110kV以下等级,且过载最严重主变为110kV等级,则给出切除过载最严重主变所带负荷的策略;
(4)若动作备自投为110kV以下等级,且过载最严重主变为220kV等级,则自动给出切除动作备自投对应的110kV主变所带负荷的策略;
(5)若动作备自投为110kV等级,且过载最严重主变为220kV等级,则给出切除备自投动作后新增的110kV主变所带负荷的策略;
(6)自动根据过载最严重主变过载程度确定切除负荷的数量;
(7)按负荷重要程度对负荷切除次序进行排序,重要程度高的负荷的切除次序后于重要程序低的负荷。
相对于现有技术,本发明具有以下积极效果:(1)本发明方法自动判断备自投动作情况和主变的过载情况,实现了电网运行情况的实时检测,节省了调度员的工作量,并提高了响应速度和效率;(2)本发明方法自动根据电网模型搜索220kV主变和110kV主变的供用电关系,为后续给出策略提供基础、提前做好准备;(3)本发明能够自动根据过载主变搜索相关负荷;(4)本发明能够自动将负荷按重要程度排序从而给出最优策略。
附图说明
图1为本发明的流程示意图。
具体实施方式
下面结合附图详细说明本发明的技术方案:
电力系统备自投动作后主变过载处理方法,包括以下步骤:
(1)自动检测备自投是否动作,若备自投有动作,则进一步检测是否有主变过载;并且自动搜索220kV主变和110kV主变的供用电关系;
(2)若检测到有主变出现过载,根据过载严重程度对过载主变进行排序,得出过载最严重的主变;
(3)若动作备自投为110kV以下等级,且过载最严重主变为110kV等级,则给出切除过载最严重主变所带负荷的策略;
(4)若动作备自投为110kV以下等级,且过载最严重主变为220kV等级,则自动给出切除动作备自投对应的110kV主变所带负荷的策略;
(5)若动作备自投为110kV等级,且过载最严重主变为220kV等级,则给出切除备自投动作后新增的110kV主变所带负荷的策略;
(6)自动根据过载最严重主变过载程度确定切除负荷的数量;
(7)按负荷重要程度对负荷切除次序进行排序,重要程度高的负荷的切除次序后于重要程序低的负荷。

Claims (1)

1.电力系统备自投动作后主变过载处理方法,其特征在于包括以下步骤:
(1)自动检测备自投是否动作,若备自投有动作,则进一步检测是否有主变过载;并且自动搜索220kV主变和110kV主变的供用电关系;
(2)若检测到有主变出现过载,根据过载严重程度对过载主变进行排序,得出过载最严重的主变;
(3)若动作备自投为110kV以下等级,且过载最严重主变为110kV等级,则给出切除过载最严重主变所带负荷的策略;
(4)若动作备自投为低于110kV等级,且过载最严重主变为220kV等级,则自动给出切除动作备自投对应的110kV主变所带负荷的策略;
(5)若动作备自投为110kV等级,且过载最严重主变为220kV等级,则给出切除备自投动作后新增的110kV主变所带负荷的策略;
(6)自动根据过载最严重主变过载程度确定切除负荷的数量;
(7)按负荷重要程度对负荷切除次序进行排序,重要程度高的负荷的切除次序后于重要程序低的负荷。
CN201610117142.5A 2016-03-02 2016-03-02 电力系统备自投动作后主变过载处理方法 Expired - Fee Related CN105552919B (zh)

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CN110601208B (zh) * 2019-09-12 2023-06-27 深圳供电局有限公司 一种基于多维度负荷属性的精准负荷控制方法及系统
CN110783915A (zh) * 2019-10-30 2020-02-11 威胜电气有限公司 一种多配电台区供电方法以及供电系统
CN115663814B (zh) * 2022-12-30 2023-03-28 国网山西省电力公司长治供电公司 一种220kV变电站变压器负荷的倒接方法

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