Hybrid sensorless control of PMSM in full speed range using HFI and back-EMF

IF 0.7 Q3 ENGINEERING, MULTIDISCIPLINARY

Engineering Review Pub Date : 2023-01-01 DOI:10.30765/er.2103

S. Medjmadj

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引用次数: 0

Abstract

The permanent magnet synchronous motors (PMSM) are more and more used because of their high performance compared with other AC motors. The present paper proposes a hybrid controller which consists of a high frequency injection estimator and a back-electromotive-force observer in full speed range for the sensorless control of PMSM. The aim objective of the study to prevent speed overshot in startup time of the motor and provides a better dynamic response in transient and permanent states using this structure. A hybrid algorithm is applied to realize a smooth transition from low to high speed. At standstill and very low speed region, HF injection technique is used to detect the rotor initial position. In this first step study, the position estimation is derived from a HF current injection by using only one filter. When the rotor speed goes up to a certain value where back-EMF can provide adequate information, a back-EMF observer will dominate. Thanks to this structure, the mechanical sensor can be engaged using the best estimates and the developed control method is fast, simple, and flexible. The effectiveness, superiority, and performance of the proposed control method and extensive simulation results are provided on a 1 kW permanent magnet synchronous motor drive, demonstrating the expected performances.

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利用HFI和反电动势在全速范围内混合无传感器控制永磁同步电机

永磁同步电动机由于其优越的性能，与其他交流电动机相比，得到了越来越多的应用。本文提出了一种由高频注入估计器和全转速反电动势观测器组成的混合控制器，用于永磁同步电机的无传感器控制。研究的目的是防止电机启动时间的速度超调，并使用该结构在瞬态和永久状态下提供更好的动态响应。采用混合算法实现低速到高速的平滑过渡。在静止和极低速区域，采用高频注入技术检测转子初始位置。在第一步研究中，仅使用一个滤波器从高频电流注入中获得位置估计。当转子转速上升到一定值时，反电动势可以提供足够的信息，反电动势观测器将占主导地位。由于这种结构，机械传感器可以使用最佳估计，并且开发的控制方法快速，简单和灵活。通过对1kw永磁同步电机驱动器的仿真，验证了所提控制方法的有效性、优越性和性能，验证了所提控制方法的预期性能。

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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来源期刊

Engineering Review ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Engineering Review is an international journal designed to foster the exchange of ideas and transfer of knowledge between scientists and engineers involved in various engineering sciences that deal with investigations related to design, materials, technology, maintenance and manufacturing processes. It is not limited to the specific details of science and engineering but is instead devoted to a very wide range of subfields in the engineering sciences. It provides an appropriate resort for publishing the papers covering prior applications – based on the research topics comprising the entire engineering spectrum. Topics of particular interest thus include: mechanical engineering, naval architecture and marine engineering, fundamental engineering sciences, electrical engineering, computer sciences and civil engineering. Manuscripts addressing other issues may also be considered if they relate to engineering oriented subjects. The contributions, which may be analytical, numerical or experimental, should be of significance to the progress of mentioned topics. Papers that are merely illustrations of established principles or procedures generally will not be accepted. Occasionally, the magazine is ready to publish high-quality-selected papers from the conference after being renovated, expanded and written in accordance with the rules of the magazine. The high standard of excellence for any of published papers will be ensured by peer-review procedure. The journal takes into consideration only original scientific papers.