基于广域支路响应无功分布特征的主导失稳形态判别.pdfVIP

第43 卷 第13 期 中 国 电 机 工 程 学 报 Vol.43 No.13 Jul. 5, 2023 2023 年7 月5 日 Proceedings of the CSEE ©2023 Chin.Soc.for Elec.Eng. 4883 DOI ：10.13334/j.0258-8013.pcsee.221193 文章编号：0258-8013 (2023) 13-4883-16 中图分类号：TM 73 文献标识码：A 基于广域支路响应无功分布特征的 主导失稳形态判别  李宗翰，孙华东 ，郑超，徐式蕴，赵兵 ( 电网安全全国重点实验室( 中国电力科学研究院有限公司) ，北京市 海淀区 100192) Discrimination of Dominant Instability Mode Based on the Reactive Power Distribution Characteristic of Wide-area Branch Response * LI Zonghan, SUN Huadong , ZHENG Chao, XU Shiyun, ZHAO Bing (National Key Laboratory of Grid Security (China Electric Power Research Institute), Haidian District, Beijing 100192, China) ABSTRACT: With the continuous expansion of the AC/DC 物理意义的主导性判别指标，用以指示主导失稳形态的同 hybrid power grid scale, the stability characteristics become 时，还可判别垂足电压落点位置；最后，利用电压幅值乘积 more complex, and rotor angle instability and voltage 指数辨识关键支路，在此基础上，提出主导失稳形态判别及 instability are often interweaved and difficult to identify. A fast 紧急控制策略。标准算例和实际交直流混联电网的仿真结果 and accurate methodology that identifies the dominant mode of 验证了所提方法及策略的有效性。 coupling instability is the priority of targeted emergency 关键词：功角失稳；电压失稳；主导形态；紧急控制 control strategy. In this paper, temporal and spatial variation characteristics of branch reactive power is analyzed based on 0 引言 three typical systems, and differentiating features between 新能源发电设备大规模接入促进电源重构，系 temporal and spatial variation characteristics are extracted. 统运行不确定性显著增强；交直流混联电网结构一 Then, combined with