摘要：【中文】本申请涉及一种级联H桥逆变器的调制波的补偿方法。级联H桥逆变器的输入信号包括原始调制波，补偿方法包括获取原始调制波的半周期。将半周期划分为多个补偿时间段。将调制波划分为多个待补偿调制波段。多个待补偿调制波段与多个补偿时间段一一对应。获取多个的补偿正弦波，多个补偿正弦波与多个补偿时间段一一对应。将多个补偿正弦波分别一一对应叠加至多个待补偿调制波段，形成补偿调制波组。补偿调制波组包含多个补偿调制波。通过粒子群算法和仿真机对多个补偿调制波进行优化处理。级联H桥逆变器的调制波的补偿方法仅对调制波进行修正，载波不变，避免了电流为零的情况，有效避免了噪声干扰，减小级联H桥逆变器的失真度。 【EN】The application relates to a method for compensating modulation waves of a cascaded H-bridge inverter. The input signal of the cascade H-bridge inverter comprises an original modulation wave, and the compensation method comprises the step of obtaining a half period of the original modulation wave. The half cycle is divided into a plurality of compensation time periods. And dividing the modulation wave into a plurality of modulation bands to be compensated. The plurality of modulation bands to be compensated correspond to the plurality of compensation time periods one by one. A plurality of compensation sine waves are acquired, and the plurality of compensation sine waves correspond to the plurality of compensation time periods one to one. And correspondingly superposing the plurality of compensation sine waves to a plurality of modulation wave bands to be compensated one by one to form a compensation modulation wave group. The compensation modulation wave group comprises a plurality of compensation modulation waves. And optimizing the plurality of compensation modulation waves through a particle swarm algorithm and a simulator. The compensation method of the modulation wave of the cascade H-bridge inverter only corrects the modulation wave, the carrier wave is unchanged, the condition that the current is zero is avoided, noise interference is effectively avoided, and the distortion degree of the cascade H-bridge inverter is reduced.