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控制与算法 PWM控制 空间矢量调制SVPWM ★ 3.0

用于降低电流纹波的无传感器IPMSM驱动多SVPWM新型调制方案

Novel PWM Schemes With Multi SVPWM of Sensorless IPMSM Drives for Reducing Current Ripple

语言:

中文摘要

本文提出了一种用于内置式永磁同步电机(IPMSM)无传感器控制的多空间矢量脉宽调制(MSVPWM)方案。该方案利用磁凸极效应,通过MSVPWM注入高频电压分量,实现转子位置的精确估计,并有效降低了电机驱动系统的电流纹波。

English Abstract

This paper proposes novel pulsewidth modulation (PWM) schemes for multi-space-vector pulsewidth modulation (MSVPWM), which is used in position sensorless control of interior permanent-magnet synchronous motor drives. The estimation of the rotor position is based on magnetic saliency and employs high-frequency components of voltage and current, which are excited by MSVPWM. The difference between th...
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SunView 深度解读

该技术主要针对高性能电机驱动控制,与阳光电源的电动汽车充电桩及风电变流器业务具有一定相关性。在风电变流器领域,优化PWM调制策略可显著降低发电机侧的电流谐波,提升系统效率并减少损耗;在充电桩模块中,类似的无传感器控制算法有助于提升功率模块的动态响应性能。建议研发团队关注该方案在降低开关损耗与提升低速运行稳定性方面的潜力,将其作为提升变流器控制算法精度的技术储备,以进一步优化产品在复杂工况下的电能质量表现。