摘要
Abstract
The current situation and existing problems of security and stability control system ( SSCS) of ultra‐high voltage direct current ( U HVDC) transmission are analyzed in the aspects of the system architecture , the interface between SSCS and pole control and protection system ( PCP ) , failure criterion of converter devices and control strategies of the grid . The engineering experience of U HVDC SSCS projects in China is summed up , the standard design schemes are proposed . The research focuses on the interface and communication protocol between SSCS and PCP , fault criterion , U HVDC power loss algorithmic , and coordination of security stability control strategies . The design scheme proposed has been applied in Fulong ‐Fengxian , Jinping‐Suzhou , and Yibin‐Jinhua U HVDC transmission projects . Also ,the study has great significance for other designs , development and implementation of U HVDC SSCS .关键词
特高压直流输电/安全稳定控制系统/典型设计方案/工程应用Key words
ultra-high voltage direct current ( U HVDC) transmission/security and stability control system ( SSCS)/typical design scheme/engineering applications
