文献翻译 - 图文(6)

此外,通过使用buck式PWM整流器联合一个简单的、廉价的高频输出过滤器,输出电流和电压几乎可以接近似标准波形。为了防止风险这对直流电机设计是极为重要的，这些风险包括电机在欠载下高速运行时变换失败、高dv/dt导致的绝缘失败、轴承电流导致的机械故障。

单位功率因数buck式PWM整流器在直流电机应用中的使用提出了一些新的方法例如4-Q操作的可能性,输入电流的低谐波失真等，超过了使用其它已知的转换器拓扑结构。同目前的IGBT技术一起,近500kW单位，似乎可以投入实施。 参考文献：

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