考虑发电机过励限制/保护的大电网安全稳定特性演化规律及控制策略  

Evolution Rule and Control Strategy of Large Power Grid Security and Stability Considering Generator Over-excitation Limit/Protection

作　　者：唐晓骏 韩民晓[1] 霍启迪 杨海涛[2] 谢岩[2] 曹媛[3] 

机构地区：[1]华北电力大学电气与电子工程学院,北京市昌平区102206 [2]中国电力科学研究院,北京市海淀区100192 [3]河北农业大学机电工程学院,河北省石家庄市071001

出　　处：《中国电机工程学报》2017年第18期5248-5255,共8页Proceedings of the CSEE

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.

关 键 词：过励限制 过负荷保护 过励限制/保护 安全稳定防御 

分 类 号：TM85[电气工程—高电压与绝缘技术]