【作者】 方宇；

【导师】 邢岩；

【作者基本信息】 南京航空航天大学 ， 电力电子与电力传动， 2004， 硕士

【摘要】 消除电网谐波污染、提高功率因数是电力电子领域研究的重大课题。本文着重研究三相功率因数校正。分析总结了现有的三相整流电路拓扑及其控制策略，选择以三相电压型PWM整流器为研究对象，并采用电压空间矢量PWM控制策略；分析研究了整流器的工作原理，建立了数学模型；研究了控制方法及其参数设计；提出了电压空间矢量的PWM快速算法，不需要三角函数表，由DSP实时计算得到精确的工作矢量及零矢量的作用时间。 采用TMS320F240作为控制核心，设计了1KW三相高功率因数PWM整流器；在MATLAB环境下对样机系统进行了仿真分析；制作了实验样机并进行了各种工作状态的实验。仿真和实验验证了设计的有效性和合理性。更多还原

【Abstract】 Eliminating harmonic pollution and improving power factor are the quite important task in the field of power electronics. In this paper three-phase power factor correction is focused on and the existing three-phase rectification topologies and control strategy are analyzed. Among these a three-phase Voltage-style PWM rectifier is selected, and voltage space vector PWM is employed. And its principle, mathematics models and the selection of control parameters are studied in details. In addition to, a fast algorithm for space vector PWM, the method of decomposition matrix proposed in this paper can simplify the calculation process and with which we may omit the triangular function tables.The 1KW three-phase HPF PWM rectifier profile is designed based on the digital signal processor TMS320F240. With MATLAB program, simulation of this profile has been done, and experimental wave forms verify this design.更多还原