摘要
故障后大功率转移诱发线路过载和母线低电压,并诱发发电机、直流等其他设备连锁反应是我国电网面临的重大风险之一。在梳理发电机转子热特性及相关限制/保护的原理和配合关系基础上,基于PSD-FDS全过程动态仿真软件完善了发电机过励限制和相关保护仿真功能,研究了考虑发电机过励限制/保护后电网安全稳定特性变化规律,提出了预防大面积停电的发电机过励限制/保护优化方法及电网安全稳定防御优化策略。
Large-scale power transfer after failure will cause overload and low voltage, chain reaction induced by other equipments such as generators and DC is one of the major risks facing power grid in China. On the basis of carding the rotor thermal characteristics, the principle and coordination of its limitation/protection, the dynamic simulation software based on PSD-FDS has been developed to improve the simulation function of generator over-excitation limit and related protection. Security and stability characteristics of power grid considering generator over-excitation limit/ protection was studied. The generator over-excitation limit/ protection method to prevent blackout and the prevention optimization strategy of power grid were proposed.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2017年第18期5248-5255,共8页
Proceedings of the CSEE
关键词
过励限制
过负荷保护
过励限制/保护
安全稳定防御
over-excitation limit
over-load protection
generator over-excitation-limit/protection
security and stability defense
