摘要
超导磁储能(SMES)中的变流器及其控制方法对SMES的储能效率和可靠性运行有很大的影响,传统比例积分(PI)控制方法的参数难以整定并且容易出现超调而不能适用于复杂的非线性系统,因此提出动态演化控制(DEC)。该控制方法是一种非线性控制策略,其主要思想是通过迫使误差函数按照演化路径随时间逐渐趋近于0,从而来控制参数的严格误差调节,有效提高了SMES系统运行时的稳定性和鲁棒性。在MATLAB/Simulink中对所提控制方法在不同算例下的有效性进行验证,仿真结果表明了所提方法具有响应速度快、鲁棒性强、稳定性高的特点。
The converter and its control method in SMES(Superconducting Magnetic Energy Storage)have a great impact on the energy storage efficiency and reliability operation of SMES.The traditional PI(Proportional Integral)control methods are difficult to set the parameters and easy to overshoot,which cannot be applied to complex nonlinear system.Therefore,a DEC(Dynamic Evolution Control)method is proposed,which is a nonlinear control strategy.The main idea is to force the error function to approach 0 with time according to the evolution path,which effectively improves the stability and robustness of SMES system during operation.The effectiveness of the proposed control method under different examples is verified in MATLAB/Simulink,and simulative results show that the proposed method has the characteristics of fast response speed,strong robustness and high stability.
作者
朱英伟
付伟真
林晓冬
杨浩瀚
ZHU Yingwei;FU Weizhen;LIN Xiaodong;YANG Haohan(College of Electrical Engineering and Information Technology,Sichuan University,Chengdu 610065,China)
出处
《电力自动化设备》
EI
CSCD
北大核心
2019年第12期7-13,共7页
Electric Power Automation Equipment
