摘要
【目的】针对分布式电源集群接入电力系统的稳定性分析难以计算,通信需求高等问题,提出一种基于输出微分无源性理论的电力系统分布式强同步稳定性分析方法。【方法】将系统稳定简化为网络耦合和节点动态之间的竞争,在此基础上同时考虑了强同步框架下的相位稳定和电压稳定问题,解决了分布式电源集群接入的电力系统分布式稳定分析问题。利用实时数字仿真器(RTDS)在强同步稳定框架下,分别对3机9节点系统和10机39节点系统的小扰动和大扰动稳定性进行分析。【结果】仿真结果表明:当系统控制参数满足输出微分无源性理论的条件时,系统能够在小扰动下保持稳定,在持续时间不超过临界切除时间的大扰动下也能保持稳定。
【Purposes】Aiming at the challenges of difficult computation and high communication demands in stability analysis for distributed generation clusters integrating into power systems,a distributed augmented synchronization stability analysis method based on output differential passivity theory is developed.【Methods】On the basis of the output differential passivity theory,the system stability was simplified to the competition between network coupling and node dynamics.On this basis,phase stability and voltage stability problems in the augmented synchronization framework were simultaneously considered to solve the distributed stability analysis problem of power systems with distributed power cluster access.By using real-time digital simulator(RTDS)in the framework of augmented synchronization stability,the small-and large-disturbance stabilities of the 3-machine 9-bus system and the 10-machine 39-bus system were analyzed separately.【Results】The results show that when the system control parameters satisfy the condition of the output differential passivity theory,the system is able to maintain stability under small disturbance,and also under large disturbance whose duration does not exceed the critical clearing time.
作者
彭云枫
秦文萍
黄宁枫
朱志龙
逯瑞鹏
秦鹏慧
朱海啸
PENG Yunfeng;QIN Wenping;HUANG Ningfeng;ZHU Zhilong;LU Ruipeng;QIN Penghui;ZHU Haixiao(College of Electrical and Power Engineering,Taiyuan University of Technology,Taiyuan,Shanxi,China;School of Engineering,University of Western Australia,Perth,Australia)
出处
《太原理工大学学报》
北大核心
2025年第6期1061-1072,共12页
Journal of Taiyuan University of Technology
基金
国家自然科学基金资助项目(52477115)。
关键词
互联电力系统
强同步稳定性
分布式稳定性分析
无源性
实时数字仿真器
interconnected power systems
augmented synchronization stability
distributed stability analysis
passivity
real time digital simulator
作者简介
第一作者:彭云枫,硕士研究生,(E-mail)pengyunfeng0406@163.com;通信作者:秦文萍,博士,教授,主要从事电力系统可靠性/稳定性分析、微电网运行与控制、交直流混合微电网保护等研究,(E-mail)qinwenping@tyut.edu.cn。
