电力系统自动化2012，Vol.36Issue(7)：104-109,6.
汽轮机阀门流量特性对电力系统的影响及其控制策略
Influence of Steam Turbine Valve Discharge Characteristics on Power Systems and Its Control Strategy
盛锴 1刘复平 1刘武林 1寻新 1王伯春 1李劲柏1
作者信息
- 1. 湖南省电力公司科学研究院,湖南省长沙市410007
- 折叠
摘要
Abstract
Steam turbine valve discharge characteristics are among the important factors affecting the stability of the power systems.The influence mechanism of steam turbine valve discharge characteristics on the security and stability of the power grid is studied through the mathematical modeling of steam turbine and its speed control system,generator and excitation system.Mathematical analysis and simulation results show that cyclic fluctuations of generator active power might be caused by undesired steam turbine valve discharge characteristics.In view of this phenomenon,a modified control strategy of turbine governor modification system is proposed.This strategy can inhibit the excessive accommodation of proportion-integration-differentiation（PID） controller which is based on the power control mode,effectively increases the system damping,and suppresses power fluctuations of the prime mover.关键词
汽轮机/阀门调节/流量特性/调速系统/控制策略/功率振荡Key words
steam turbine/valve regulation/discharge characteristics/speed control system/control strategy/power oscillation分类
信息技术与安全科学引用本文复制引用
盛锴,刘复平,刘武林,寻新,王伯春,李劲柏..汽轮机阀门流量特性对电力系统的影响及其控制策略[J].电力系统自动化,2012,36(7):104-109,6.
