电力系统保护与控制2015，Vol.43Issue(20)：1-7,7.
风电并网系统小干扰概率稳定性分析与改善
Probabilistic small-signal stability analysis and improvement of power system with wind farm integration
摘要
Abstract
A power system stabilizer (PSS) is installed in pitch control system to damp low frequency oscillation of power system, taking into consideration of the stochastic uncertainty of system operating conditions. Cumulative probability curves are employed to obtain probability numerical characteristics of stochastic variables. The probabilistic method based on numerical analysis is used to study small-signal stability statistical attributes of power system with wind farm integration. Through simulation on a five-machine two-area system with wind farm integration, the effectiveness that a PSS is installed in pitch control system to improve probabilistic small-signal stability is verified, and the improvement of PSS is evaluated. Simulation results demonstrate that the installation of PSS in pitch control system could suppress effectively local oscillation and weaken inter-area oscillation.关键词
桨距角控制/电力系统稳定器/低频振荡/累积概率/小干扰稳定Key words
pitch control/power system stabilizer (PSS)/low-frequency oscillation/cumulative probability/small-signal stability分类
信息技术与安全科学引用本文复制引用
边晓燕,耿艳,李学武,符杨,王倩..风电并网系统小干扰概率稳定性分析与改善[J].电力系统保护与控制,2015,43(20):1-7,7.基金项目
上海市科委科技创新项目(14DZ1200905) （14DZ1200905）
上海市教委科研创新项目(12ZZ172) （12ZZ172）
上海绿色能源并网工程技术研究中心(13DZ2251900) （13DZ2251900）
