一种基于直序扩频的SRD系统电力线通信策略  

A Power Line Communication Strategy for SRD System Based on Direct Sequence Spread Spectrum

作　　者：侯春 王朝 李克铖 HOU Chun;WANG Chao;LI Ke-cheng(Jiangsu College of Safety Technology,Xuzhou 221011,China;不详)

机构地区：[1]江苏安全技术职业学院,江苏徐州221011 [2]中国矿业大学电气与动力工程学院,江苏徐州221116

出　　处：《电力电子技术》2020年第11期59-61,共3页Power Electronics

基　　金：国家自然科学基金(51977208)。

摘　　要：在传统的开关磁阻驱动(SRD)系统中,电机的运行状态信息向控制中心反馈时,多借助额外的通信线路和装置实现,如电缆通信或无线通信等,在一定程度上增加了系统体积和成本。此处提出了一种适用于SRD系统的电力线通信策略。在SRD功率变换器各相桥臂续流段,利用二进制相移键控(2PSK)方法将载波信号注入到为SRD供电的功率母线中,并引入直序扩频(DSSS)方法,以提升载波信号在功率母线上传输的抗干扰和稳定性。在Matlab/Simulink环境下搭建了仿真模型进行数值验证,并进行了实验测试。In the traditional switched reluctance drive(SRD)system,when the operation state of the motor is coupled back to control center,it is mostly realized by means of additional communication lines and devices,such as cable or wireless communication,which increases the volume and cost of the system.A new power line communication strategy suitable for SRD system is proposed.In the freewheel stage of each bridge arm of SRD power converter,binary phase shift keying(2 PSK)method is used to inject carrier signal into the power bus,and direct sequence spread spectrum(DSSS)method is introduced to improve the anti-interference and stability of carrier signal transmission on the power bus.A simulation model is built by Matlab/Simulink for numerical verification and experimental tests are carried out.

关 键 词：开关磁阻驱动 直序扩频 电力线通信 

分 类 号：TK414.4[动力工程及工程热物理—动力机械及工程]