控制理论与应用Issue(6)：687-692,6.DOI:10.7641/CTA.2014.30625
互联非线性系统反馈主导控制设计方法及汽门开度控制应用
Stability control of interconnected nonlinear systems based on feedback domination method and application on turbine valve
摘要
Abstract
Mathematical characteristics of power system nonlinearity are analyzed. It is shown that the nonlinearity between generator output power and node voltage is a kind of bounded nonlinearity. According to the bounded nonlinearity, we introduce the feedback domination method (FDM) for controlling the nonlinear multi-machine power systems. Being different from the feedback linearization method (FLM) which transforms a nonlinear system into a linear system through nonlinear feedback, FDM transforms a nonlinear system into another nonlinear system with a particular form through nonlinear feedback. The dynamics of the transformed nonlinear system is dominated by the nonlinear part in the feedback loop. As an example, feedback domination method (FDM) is applied to design the nonlinear turbine valve control in multi-machine power systems. The nonlinear valve control law constructed for generators only includes local measurements, so that it is easy to be implemented. Numerical simulations demonstrate that the nonlinear valve control law based on FDM effectively improves transient stability in power system.关键词
非线性控制/反馈主导/电力系统/汽门开度控制Key words
nonlinear control/feedback domination/power systems/turbine valve control分类
信息技术与安全科学引用本文复制引用
常乃超,陈来军,侯云鹤..互联非线性系统反馈主导控制设计方法及汽门开度控制应用[J].控制理论与应用,2014,(6):687-692,6.基金项目
国家电网公司科技资助项目(SGCC-MPLG001(001-031)-2012) （SGCC-MPLG001(001-031）
国家自然科学基金创新研究群体资助项目(51321005) （51321005）
