| 引用本文: | 张大波,连帅,陶维青,方陈,柳劲松.基于PMU的电网等值在互联电网运行可靠性评估中的应用[J].电力系统保护与控制,2019,47(15):40-47.[点击复制] |
| ZHANG Dabo,LIAN Shuai,TAO Weiqing,FANG Chen,LIU Jinsong.Application of PMU-based grid equivalent model in operation reliability evaluation of interconnected power grid[J].Power System Protection and Control,2019,47(15):40-47[点击复制] |
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| 摘要: |
| 互联电网发展迅速，逐步形成一个整体。如何在信息隔离的情况下准确评估互联电网下某区域电网可靠性，是互联电网安全运行面临的难题。针对这一问题，提出了基于PMU监测的互联电网区域电网运行可靠性评估方法。该方法利用边界PMU测量数据估计外网静态等值模型简化互联电网，采用互联电网异步迭代法更新外网静态模型等值参数，保证可靠性计算结果的准确性。基于IEEE-RTS-96节点系统的算例结果表明，所提方法能够在不依赖于互联电网各区域电网实际拓扑信息的情况下快速准确地计算互联电网子系统可靠性指标。 |
| 关键词: 互联电网 静态等值 PMU监测 静态等值参数更新 可靠性评估 |
| DOI：10.7667/PSPC20191506 |
| 投稿时间：2018-08-10修订日期：2018-11-23 |
| 基金项目:国家重点研发计划项目资助(2017YFB0902800) “基于微型同步相量测量的智能配电网运行关键技术研究” |
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| Application of PMU-based grid equivalent model in operation reliability evaluation of interconnected power grid |
| ZHANG Dabo,LIAN Shuai,TAO Weiqing,FANG Chen,LIU Jinsong |
| (School of Electrical and Automation Engineering, Hefei University of Technology, Hefei 230000, China;China Shipbuilding Industry Corporation 713 Institute, Zhengzhou 450000, China;Electric Power Research Institute, State Grid Shanghai Municipal Electric Power Company, Shanghai 200000, China) |
| Abstract: |
| The interconnected power grid has developed rapidly and gradually formed a whole. How to accurately evaluate the reliability of a certain area of the grid under the interconnection of information in the case of information isolation is a difficult problem for the safe operation of the interconnected power grid. In response to this problem, this paper proposes a reliability assessment method for interconnected grid regional grid operation based on PMU monitoring. The method uses the boundary PMU measurement data to estimate the external network static equivalence model to simplify the interconnected power grid, and adopts the interconnected grid asynchronous iterative method to update the external network static model equivalent parameters to ensure the accuracy of the reliability calculation results. The results of the example based on the IEEE-RTS-96 node system show that the proposed method can quickly and accurately calculate the reliability index of the interconnected power subsystem without relying on the actual topology information of the interconnected power grids. This work is supported by National Key Research and Development Program of China (No. 2017YFB0902800) “Research on Key Techniques of Intelligent Distribution Network Operation based on Micro Synchronous Phasor Measurement”. |
| Key words: interconnected power grid static equivalent PMU monitoring static equivalent parameter update reliability assessment |
