一种简单、新颖的恒开关频率三相逆变器变滞后带电流控制方法

Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting Pub Date : 1993-10-02 DOI:10.1109/IAS.1993.299038

Q. Yao, D. G. Holmes

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引用次数: 181

摘要

本文描述了一种实现可变迟滞带电流控制器的新方法，该方法在不需要精确了解电机参数的情况下实现恒定的开关频率。控制器的工作原理是使用反馈和反馈变量来创建可变迟滞带包络，然后补偿三相电机中性点处于浮动状态时发生的相位反向电磁场之间的相互作用。该控制器具有良好的动态响应和稳态响应，其性能基本不受逆变器直流电源电压和电机参数变化的影响。它可以很容易地在硬件中实现，与传统的滞后电流控制器相比，只需要一些额外的组件。给出了分析、硬件实现、仿真、FFT(快速傅立叶变换)分析和实验结果

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A simple, novel method for variable-hysteresis-band current control of a three phase inverter with constant switching frequency

A novel method for implementing a variable hysteresis band current controller is described which achieves constant switching frequency without requiring a precise knowledge of the motor parameters. The controller works by using feedback and feedback variables to create a variable hysteresis band envelope, and then compensating for the interaction between phase back-EMFs that occurs when the neutral of a three-phase motor is left floating. The controller has good dynamic and steady-state response, and its performance is substantially immune to variations in the inverter DC supply voltage and motor parameters. It can be readily implemented in hardware, and only requires a few additional components compared to a conventional hysteresis current controller. Analytical, hardware implementation, simulation, FFT (fast Fourier transform) analysis, and experimental results are presented.<>

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Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting

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