电力系统保护与控制2011,Vol.39Issue(15):7-12,6.
提高送端多直流落点系统暂态稳定性的非线性控制策略
Nonlinear control strategy for improving the transient stability of sending ends multi-feed HVDC system
摘要
Abstract
A nonlinear control strategy of coordinating HVDC and generator excitation to improve the transient stability of sending ends multi-feed HVDC system is proposed.First, the nonlinear differential algebraic equation of sending ends multi-feed HVDC system is presented.Then, based on the structure preserving energy function and generalized quasi Hamilton theory, the integrated control strategy which considers the coordination between HVDC and its nearby generator excitation control is derived.The nonlinear characteristic of the power system is well preserved because of the nonlinear controller design based on energy theory.Furthermore, the control strategy is easy to implement because of the simple structure.The simulation results show that the system damping and the voltage stability are improved due to the use of the nonlinear control strategy.关键词
送端多直流落点系统/非线性微分代数系统(NDAS)/广义拟Hamil/ton实现/非线性控制Key words
sending ends multi-feed HVDC system/ nonlinear differential algebraic system(NDAS)/ generalized quasiHamiltonian realization/ nonlinear control分类
信息技术与安全科学引用本文复制引用
赵睿,张英敏,李兴源,贺洋,陈虎,李波,邹皓..提高送端多直流落点系统暂态稳定性的非线性控制策略[J].电力系统保护与控制,2011,39(15):7-12,6.基金项目
国家自然科学基金项目(51037003) (51037003)
四川省科技厅基础应用计划(2010jy0018) (2010jy0018)