基于单处理器的组合式三相逆变电源分相调制技术  

Individual Phase Modulation Technology of Combined Three-phase Inverter based on Single Processor

作　　者：陈盛良 王榕生[1] 

机构地区：[1]福州大学电气工程与自动化学院,福州350116

出　　处：《电气技术》2015年第3期6-9,共4页Electrical Engineering

摘　　要：本课题研究的组合式三相逆变电源是基于单相逆变电源设计,采用分相调制策略控制各相的输出电压,使三相逆变器输出电压对称。组合式逆变器的输入侧由中频发电机供电,输出侧的一端直接相连形成中性线。这种拓扑使逆变电源既能满足三相负载对称或者不对称运行,也能满足单相负载运行。本课题仅用单个DSP处理器产生12路PWM波,节省了芯片资源。实验结果表明,该方案满足逆变电源供电需求,输出三相电压对称性良好。The combined three-phase inverter studied in the paper is based on the design of single-phase inverter, and adopts individual phase modulation to control each voltage,making the output voltages of three-phase inverter symmetrical. The input sides of combined inverter are powered by an intermediate frequency generator, while the output side is connected directly to form a neutral line. The topology inverter can meet symmetric or asymmetric three-phase load operation, and also can satisfy the single-phase load operation. In the paper, just one DSP processor is applied to generate 12 PWM waves, which saves the resource of chips. The experimental result shows that the solution meets the demand of inverter, and the symmetry of output three-phase voltage is favorable.

关 键 词：组合式三相逆变器 分相调制 PI电压环 

分 类 号：TM464[电气工程—电器]