摘要
针对高温超导磁体充、放电对超导储能系统斩波单元稳定运行的要求,对超导磁储能电压型功率调节系统进行了研究,采用状态空间平均法建立斩波器充电及放电模式的数学模型,分析斩波器充电、续流及放电的工作原理,并设计斩波器的电流闭环反馈控制方法。基于第2代高温超导线圈,考虑到线圈电感量及其限流保护,应用Matlab软件进行了斩波器充电和放电工作模式仿真,并且搭建了一个超导储能的斩波器试验系统,应用DSP2812处理器实现对超导磁体充、放电控制。磁体电压、磁体电流及直流母线电流仿真与实验波形吻合较好,所应用的斩波器数学模型及其控制方法能实现对超导磁体快速稳定地充、放电和续流。
The charge and discharge of superconducting magnets request the chopper unit of HT-SMES （High Temperature Superconducting Magnetic Energy Storage） system to operate stably,for which its voltages ource power conditioning system is researched. The state-space averaging method is used to establish the mathematical model of chopper for studying its working principle in charging and dis charging mode and itscurrent-loop feedback control is designed. With the consideration of its actual inductance and current-limiting protection of second-generation HTSM coil,the charging and discharging mode of chopper is simulated with Matlab software. A test system of SMES chopper is built,which applies DSP2812 to control the charge and discharge of superconducting magnets. The experimental and simulative waveforms of magnet current and DC bus current inosculate well,which indicates the validity of the proposed mathematical model of chopper and its control method.
出处
《电力自动化设备》
EI
CSCD
北大核心
2010年第12期51-54,共4页
Electric Power Automation Equipment
