论文部分内容阅读
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 method of compensating fluctuating loads by using controlled superconducting SMES is proposed. It keeps the active power input from the power grid constant while compensating the reactive power of the load to increase the power group number. In order to carry on the power control effectively, the converter of SMES device adopts the structure of the electric current source and connected in parallel with the load, adopt the closed-loop control method at the same time in order to improve the dynamic characteristic of the system. In order to reduce the harmonic component of the AC current, an optimized pulse width modulation switching strategy is adopted. Finally, a set of 20kJ / 15kW SMES device simulation and experimental results.