基于VSC的超導儲能裝置中功率調節系統的設計
張金良1，周博曦2，卞秋野3
1 山東大學 電氣工程學院，山東 濟南 250061；2 國網技術學院，山東 濟南 250002；3 利津縣供電公司，山東 東營 257400
摘 要： 針對超導儲能裝置中基于電壓源型變流器的功率調節系統，給出了基于電壓源型變流器(VSC) 和斬波器(Chopper) 的超導儲能(SMES) 裝置功率調節系統(PCS) 的主電路拓撲結構和使用占空比表達的PCS 低頻數學模型，提出了使用非線性變換實現狀態方程線性化的方法，通過狀態方程的線性化實現有功功率、無功功率及直流側電壓解耦控制的系統設計。Matlab/Simulink 環境下系統仿真結果表明，設計的PCS 系統控制器對階躍和正弦波功率指令具有很強的跟蹤能力，且直流側電壓有很強的抗干擾能力。
關鍵詞： 功率調節系統；電壓源型變流器；非線性變換；線性化；解耦控制
中圖分類號：TM464 文獻標識碼：A 文章編號：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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