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控制与算法 PWM控制 空间矢量调制SVPWM ★ 3.0

一种用于直接转矩控制高性能内嵌式永磁交流驱动器的逆变器非线性独立磁链观测器

An Inverter Nonlinearity-Independent Flux Observer for Direct Torque-Controlled High-Performance Interior Permanent Magnet Brushless AC Drives

语言:

中文摘要

本文提出了一种新型磁链观测器,适用于宽转速范围(含零速)下的直接转矩控制内嵌式永磁交流驱动器。该观测器考虑了电机非线性,且在稳态下不受逆变器非线性、死区效应及电枢电阻变化的影响,通过测量值快速补偿上述误差。

English Abstract

This paper introduces a novel flux observer for direct torque controlled interior permanent magnet brushless AC (IPM-BLAC) drives over a wide speed range including standstill. The observer takes machine nonlinearities into account and is independent of inverter nonlinearities, dead time, and armature resistance variation at steady states since such inaccuracies are compensated quickly by measured ...
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SunView 深度解读

该研究聚焦于电机驱动控制算法的鲁棒性,特别是对逆变器非线性和死区效应的补偿。阳光电源在风电变流器及储能系统(PCS)中广泛应用高性能电机控制技术。该观测器算法可优化变流器在低速或复杂工况下的转矩响应,提升风电变流器对发电机控制的精度,并减少对硬件传感器的依赖。建议研发团队关注该算法在降低死区效应影响方面的逻辑,以提升阳光电源变流器产品的动态性能与控制稳定性。