基于微处理器的三次谐波注入PWM逆变器

Proceedings of 1995 International Conference on Power Electronics and Drive Systems. PEDS 95 Pub Date : 1995-02-21 DOI:10.1109/PEDS.1995.405009

I. A. El-Kassas, L. N. Hulley, W. Shepherd

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引用次数: 3

摘要

介绍了利用微处理器系统MC68020，基于非对称规则采样技术，产生一个真正的PWM方案来控制三相电压源逆变器。该方案的缺点之一是，在调制的统一深度下，基波电压不能超过输入直流电压的50%，通过注入一定量的三次谐波可以部分避免。本文还描述了一种输出频率平滑变化的方法

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Microprocessor based PWM inverter with third harmonic injection

The use of a microprocessor system the MC68020, to generate a real PWM scheme to control a three-phase voltage source inverter based on the asymmetric regular sampling technique is described. One of the shortcomings of this scheme, which is the limitation placed on the fundamental voltage that cannot exceed 50% of the input DC voltage at unity depth of modulation, is partially avoided by the injection of a certain amount of third harmonics. A method of smooth variation of the output frequency is also described.<>

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Proceedings of 1995 International Conference on Power Electronics and Drive Systems. PEDS 95

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