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本文提出了一种进一步减少特定消谐ＰＷＭ波形剩余谐波畸变率和改善剩余谐波频谱分布的新方法——优化特定消谐ＰＷＭ技术。这项技术在继承了特定消谐ＰＷＭ技术诸多优点的基础上克服了特定消谐ＰＷＭ技术剩余谐波含量大的缺点，使剩余谐波的第一波峰向后推移，有效地降低了输出ＰＷＭ波形的谐波畸变率。本文以消除谐波数Ｍ＝１３为例说明优化特定消谐理论，并通过计算机仿真验证了理论分析的正确性。这一技术在逆变电源、变频调速、无功补偿等领域具有广阔的应用前景。
This paper presents a new method to further reduce the residual harmonic distortion of a specific harmonic elimination PWM waveform and to improve the remaining harmonic spectrum distribution - optimizing a specific harmonic elimination PWM technology. This technology inherits many advantages of specific harmonic elimination PWM technology and overcomes the shortcoming of the large residual harmonic content of a specific harmonic elimination PWM technology and makes the first peak of the remaining harmonic wave backward and effectively reducing the output PWM waveform Harmonic distortion rate. In this paper, the elimination of harmonic number M = 13 as an example to illustrate the optimization of a specific harmonic elimination theory, and verified by computer simulation of the theoretical analysis of the correctness. This technology in the inverter, frequency control, reactive power compensation and other fields have broad application prospects.