级联型多电平变换器单元电路控制器设计  

Design of cascade multilevel converter unit circuit controller

作　　者：郭殿林[1] 王欢[1] 陈国民[1] 常国祥[1] 

机构地区：[1]黑龙江科技学院电气与信息工程学院,哈尔滨150027

出　　处：《黑龙江科技学院学报》2012年第5期526-529,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：黑龙江省教育厅科学技术研究项目(11551425)

摘　　要：根据新型中大功率级联型多电平拓扑特点,设计了以双向全桥变换器单元为控制对象,FPGA为控制核心的单元电路控制器。其移相PWM驱动信号采用有限状态机方式实现;PI控制器采用离散算法结构,利用LUT设计;A/D控制器采用AD7823 A/D转换器,并通过DSP传送相关控制参数。仿真实验表明:该控制器可实现单元电路闭环控制,输出电压为7电平。该研究为高压大功率四象限变频器实验奠定了基础。This paper describes the design of unit circuit controller marked by bi-directional full- bridge converter unit used as control object and FPGA as control core, according to the new high power in the cascade type level topological characteristics. The steps consist of obtaining the PWM signal phase shifting driven by finite state machine way, accomplishing PI controller using discrete algorithm structure of LUT design ; achieving A/D controller by AD7823 the A/D converter, and realizing transference of related control parameters through the DSP. Simulation results show that the controller can achieve unit closed-loop control circuit and the output voltage for 7 level. The study lays a foundation for high pressure high-power inverter four quadrant experiment.

关 键 词：DSP FPGA 双向直流变换器 

分 类 号：TM46[电气工程—电器]