电网供电系统储能电源变换器设计与仿真  

Design and Simulation of Energy Storage Power Converter for Power Grid Supply System

作　　者：倪磊[1] 樊波[1] 牛天林[1] 谢一静[1] 

机构地区：[1]空军工程大学防空反导学院,陕西西安710051

出　　处：《计算机仿真》2016年第3期95-98,共4页Computer Simulation

摘　　要：储能电源变换器是电网供电系统中储能电源的核心,控制效果的好坏直接影响输出电能的质量。储能电源变换器是复杂的时变非线性系统,影响供电系统的稳定性。传统PID控制存在抗干扰能力差、参数整定困难的不足,为提高储能电源逆变输出的电压波形质量,增强控制系统的鲁棒性,提出了基于内模PID控制的改进控制策略。在分析储能电源逆变电路数学模型的基础上,利用内模控制原理设计PID控制器,建立采用内模PID控制器的储能电源逆变控制系统,对控制参数进行调整和优化,实现系统性能的改善。仿真结果表明采用内模PID控制的控制器减小了输出超调量,增强了系统的抗干扰能力和鲁棒性,改善了供电质量,适用于非线性系统。Energy storage power converter is the core of the power grid energy storage power systems, which has a direct impact on the quality of the output-voltage. Energy storage power converter is a complex time-varying nonlin- ear system. The traditional PID controller has a shortage of anti-interference performance and parameters setting. In order to improve the output-voltage performance of the inverter and robustness of battery energy storage system, this paper puts forward a control method based on internal mode control PID controller. After analysing the mathematical model of energy storage system inverter, the PID controller is designed with internal mode control, and then the con- trol system is established which combines with internal mode control PID controller to adjust the parameters of the sys- tem and optimize the function of battery energy storage system. The simulation result shows that the overshoot of the modified controller is reduced, the quality of anti-interference and robust are enhanced.

关 键 词：逆变 内模控制 控制器 

分 类 号：TM763[电气工程—电力系统及自动化]