基于VSC的超导储能装置中功率调节系统的设计
张金良1，周博曦2，卞秋野3
1 山东大学 电气工程学院，山东 济南 250061；2 国网技术学院，山东 济南 250002；3 利津县供电公司，山东 东营 257400
摘 要： 针对超导储能装置中基于电压源型变流器的功率调节系统，给出了基于电压源型变流器(VSC) 和斩波器(Chopper) 的超导储能(SMES) 装置功率调节系统(PCS) 的主电路拓扑结构和使用占空比表达的PCS 低频数学模型，提出了使用非线性变换实现状态方程线性化的方法，通过状态方程的线性化实现有功功率、无功功率及直流侧电压解耦控制的系统设计。Matlab/Simulink 环境下系统仿真结果表明，设计的PCS 系统控制器对阶跃和正弦波功率指令具有很强的跟踪能力，且直流侧电压有很强的抗干扰能力。
关键词： 功率调节系统；电压源型变流器；非线性变换；线性化；解耦控制
中图分类号：TM464 文献标识码：A 文章编号：1007-3175(2013)05-0005-05
Design of Power Conditioning System in Superconducting Magnetic Energy System Based on Voltage Source Converter
ZHANG Jin-liang1, ZHOU Bo-xi2, BIAN Qiu-ye3
1 School of Electrical Engineering, Shandong University, Jinan 250061, China; 2 State Grid Technology College, Jinan 250002, China;
3 Lijin City Power Supply Corporation, Dongying 257400, China
Abstract: Aiming at the power conditioning system (PCS) in the superconducting magnetic energy system (SMES) based on voltage source converter (VSC), this paper gave the main circuit structure of PCS in the SMES based on the VSC and Chopper, as well as the low-frequency mathematical model of PCS which is expressed in the functions of duty ratio. The non-linear transformation was
used to linearize state equations to realize the decoupled control between active power, reactive power and DC voltage. The simulated results in Simulink of Matlab showed that the designed PCS has perfect performance in tracing power orders in the form of step and sine waves with strong anti-jamming ability for voltage at DC side.
Key words: power conditioning system; voltage source converter; non-linear transformation; linearization; decoupled control
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