船用电机变流器的设计和开发

Design and Development of Converter for Marine Motor

针对船用电机的特殊应用场合需要,因传统背靠背不控整流变流器存在交流侧电流断续、功率因数低、能量单向流动并且产生大量的谐波污染等不足,本文设计开发了一款中间电压可控、逆变侧输出电流低谐波等优点的三相背靠背PWM变流器。通过变流器系统试验,验证了变流器系统理论分析、仿真分析、主回路设计、结构设计、硬件设计、软件控制策略等的可行性和正确性。

Due to the shortages of traditional uncontrolled rectifier,such as interrupted AC side current,low power factor,unidirectional energy flow and a large number of harmonic pollution,a back-to-back PWM converter with the advantages of controllable DC voltage and low harmonic of output current has been designed and developed for the special application of marine motor.The feasibility and correctness of the theoretical analysis,simulation analysis,main circuit design,structure design,hardware design and software control strategy are verified by the converter system test.