摘要
针对电力系统非线性的特点,将电力系统中的一类仿射非线性系统转换为标准的哈密顿系统,进行了超导储能SMES(SuperconductingMagneticEnergyStorage)有功功率的控制设计,对无功功率用传统的比例环节进行设计。基于受控哈密顿系统理论,建立了SMES装置的端口受控哈密顿PCH(PortControlledHamiltonian)模型,针对系统的外界干扰和参数不确定性,采用自适应L2增益控制设计方法设计了含有SMES装置的单机无穷大电力系统的自适应L2增益控制器。仿真结果表明,采用基于哈密顿系统理论的自适应L2增益控制方法对SMES有功功率的设计,利用传统的比例积分PI(ProportionIntegration)控制器进行无功功率控制,能够有效地抑制干扰,显著地改善系统的动态性能。
Considering the nonlinear characteristic of power system,a method is proposed to trans-form an affined nonlinear system existing in the power system into a standard Hamiltonian system,based on which the active power controller is designed.The reactive power controller is designed by the traditional method.The PCH(Port Controlled Hamiltonian)model of SMES(Superconducting Magnetic Energy Storage)is established based on the forced Hamiltonian theory.To deal with the problems of outside disturbance and parametric indetermination,the adaptive L 2 -gain controller of SMES in single-machine infinite-bus system is designed.The results of digital simulation manifest that the controller can attenuate disturbance and improve the dynamic performance efficiently.
出处
《电力自动化设备》
EI
CSCD
北大核心
2003年第3期64-66,共3页
Electric Power Automation Equipment
