【摘要】 采用一种直接PWM算法,研制了一台基于数字信号处理器(DSP)和现场可编程逻辑阵列(FPGA)的混合七电平变频PWM控制器,并在380V/8kW的样机系统上进行了实验。介绍了该控制器的设计原理与实现;给出了实验结果及分析。实验结果表明,该控制器的设计方案实现简单、调试方便,具有良好的输出特性。更多还原

【Abstract】 This paper introduces a PWM controller based on FPGA and Digital Signsal Processor (DSP) for hybrid 7-level inverter, which adoptes a direct PWM method. The principle, configuration and design of the controller are present-ed. Experimental results demonstrate that the controller is simple and easy to realize and debug, and it can output multi-level voltage with better harmonics spectrum.更多还原