一种基波线性化与谐波最小化的过调制方法  

An Over-modulation Method With Fundamental Wave Linearization and Harmonic Minimization

作　　者：黄招彬 张国柱 HUANG Zhao-bin;ZHANG Guo-zhu(Guangdong Midea Refrigeration Equipment Limited Company, Foshan 528311, China)

机构地区：[1]广东美的制冷设备有限公司,广东佛山528311

出　　处：《电力电子技术》2018年第6期104-108,共5页Power Electronics

基　　金：国家重点研发计划(2016YFC0700300)~~

摘　　要：通过对比分析3种过调制算法的输出电压基波线性度,提出基于反函数的输出电压基波线性化策略;然后根据3种过调制方法线性化之后电压总谐波失真对比,提出电压谐波最小的线性化过调制方法。所述过调制方法能扩展输出电压的线性工作区,降低高速运行的弱磁深度,提高高速运行效率,且能减小过调制电流谐波。实验结果验证了所述过调制方法的有效性。With the comparative analysis of output voltage fundamental wave linearity of three kinds of basic over- modulation algorithms, a novel fundamental wave linear strategy based on the inverse function is proposed.Contrasting the voltage total harmonic distortion of three kinds of linearized over-modulation algorithms,the linearized over- modulation method with minimum voltage harmonic is put forward.The proposed over-modulation method can expand linear workspace of output voltage,reduce the weak-magnetic depth and improve the efficiency at high-speed operation,and reduce the current harmonic modulation.The experimental results verify the effectiveness of the proposed over-modulation method.

关 键 词：空间矢量调制 过调制 基波线性化 电流谐波 

分 类 号：TN761[电子电信—电路与系统]