摘要
高压直流输电是一个典型的非线性控制系统,常规的PI控制在系统遭受大扰动时,难以产生有效的控制作用。为此,将微分几何与变结构控制相结合,提出了一种新型的非线性控制算法,即通过微分几何法将系统非线性反馈线性化,再用成熟的滑模变结构控制理论设计控制策略。通过PSCAD/EMTDC仿真验证,该算法是有效的。
High voltage direct current transmission（HVDC） system is a characteristic non-linear control system, and conventional PI control scheme cannot work effectively when the system is subjected to a severe disturbance. With the combination of differential geometry and variable structure control, a new nonlinear control algorithm is proposed, in which the nonlinear feedback of the system is linearized through differential geometry and the control strategy is designed with mature sliding mode variable structure control theory. The feasibility of the algorithm is proved by simulation with PSCAD/ EMTDC.
出处
《广东电力》
2006年第11期1-5,共5页
Guangdong Electric Power
关键词
高压直流输电(HVDC)
微分几何法
变结构控制
high voltage direct current transmission（HVDC） ： differential geometry
variable structure control
