基于可控超导储能的波动负载补偿  

A SMES-BASED FLUCTUATING LOAD COMPENSATION

作　　者：褚旭[1] 蒋晓华[1] 吴学智[1] 姜建国[1] 

机构地区：[1]清华大学电机系,北京市100084

出　　处：《电力系统自动化》2004年第2期50-53,82,共5页Automation of Electric Power Systems

基　　金：国家自然科学基金(50137020);国家重点基础研究专项经费资助项目(G1998020309)

摘　　要：提出了一种应用可控超导储能(SMES)装置对波动负载进行补偿的方法。它可以使电网输入的有功功率保持恒定,同时对负载的无功功率进行补偿以提高功率团数。为了有效地进行功率控制,SMES装置的交流器采用电流源型的拓扑结构并与负载并联连接,同时采用闭环控制方法以提高系统的动态性能。为减小交流电流谐波成分,采用了优化脉宽调制开关策略。最后给出了一套20kJ/15kW SMES装置的仿真和实验结果。A superconducting magnetic energy storage (SMES) based control method is proposed to compensate the fluctuating loads in the power system. It can keep the injected active power constant, and compensate the load reactive power to improve the power factors. In order to control the power effectively, the SMES unit uses a current-source-converter (CSC) and is connected to load in shunt, in addition a close-loop control algorithm is developed to improve the dynamic performance. To eliminate the harmonics in the output current, an optimal PWM strategy is also used. Finally, simulations and experiments were carried out on a 20kJ/15kW grid model SMES system and the results are fully presented.

关 键 词：超导储能 波动负载补偿 优化脉宽调制 

分 类 号：TM26[一般工业技术—材料科学与工程]