基于广义断面的电网调度操作风险评估

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摘要在电网中实际存在的输电断面基础上,提出了涵盖电网中线路、主变压器、母线与开关等设备分组的广义断面概念。由此定义了电网调度操作风险,即调度操作设备本身以及与调度操作设备同处一个广义断面的其他设备发生故障给电网带来的综合影响,并提出了适用于调度操作风险的评估方法。该方法将设备分为暴露型设备与封闭型设备,并分别赋予其相应的时变故障概率模型,应用发电机再调度与负荷削减的最优潮流模型等效评估设备故障给电网造成的风险后果。最后应用IEEE 10机39节点系统与某实际电网验证了该方法的有效性。

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	刘嘉宁
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	呼士召
	贾宏杰

关键词 ：断面, 风险, 调度, 负荷削减

Abstract：Due to the fact that some transmission line sections exist in real power systems for stability monitoring,a generalized section concept is proposed in this paper which can be used to group the power components,such as line,main transformers,bus bars,and switches.Then the dispatching operation risk is defined as the total influence including the dispatching element outage and the other elements outage located in the same generalized section.According to the above theory,a risk assessment method for dispatching operation is presented in which two different time-varying component outage models for the sealed and exposed elements are introduced respectively.Then an optimal power flow model based on the generator re-dispatching and the load curtailment is utilized to evaluate the risk influence caused by the element faults.Finally,the correctness and effectiveness of this method are tested by utilizing the IEEE 39-bus system and a real power system.

Key words： Section risk dispatching load curtailment

收稿日期: 2015-01-22 出版日期: 2016-02-25

PACS:

TM73

基金资助:广东电网调度操作安全风险量化评估模型研究及实用系统建设研究资助项目(K-GD2012-301)。

作者简介: 刘嘉宁男,1974年生,高级工程师,研究方向为电网调度运行及管理。E-mail:liujianing_gd@126.com贾宏杰男,1973年生,教授,研究方向为电力系统安全与稳定性。E-mail:hjjia@tju.edu.cn

引用本文:

刘嘉宁,潮铸,钟华赞,呼士召,贾宏杰. 基于广义断面的电网调度操作风险评估[J]. 电工技术学报, 2016, 31(3): 155-163. Liu Jianing ，Chao Zhu ，Zhong Huazan， Hu Shizhao， Jia Hongjie. The Risk Assessment Method for the Dispatching Operation Based on Generalized Sections. Transactions of China Electrotechnical Society, 2016, 31(3): 155-163.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I3/155

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