南方互联电力系统中期动态稳定破坏事故调查与分析

A MID-TERM DYNAMIC INSTABILITY OF SOUTHERN-CHINA INTERCONNECTED POWER SYSTEM──FAILURE PROCEDURE AND LESSONS

本文是关于我国南方互联电力系统１９９４年５月２５日稳定破坏事故的报告。本文详细介绍了事故前系统的运行方式、事故发生和发展过程，展示了重要的录波图，并根据录波图和负荷重新分配的理论和定量计算方法，分析了联络线功率波动和中期动态稳定破坏的原因。

This paper presents the failure of Southern China Interconnected Power System happened on May 25,1994 causing a cascaded tripping of tie lines, generators and about 1730MW loads. The failure was triggered by a sudden tripping of a large 985 MW joint venture nuclear power generation unit at the load center of Guangdong -Hongkong subsystem. Normal operation condition and procedure of the failure with on site recording are presented.The tie line power oscillations are analyzed with generator's dynamic load picking up theory and field records. Lessons are discussed.