Research on Anti DC Bias and High Order Harmonics of Fifth Order Flux Observer for IPMSM Sensorless Drive

Project Code :TEMAED102

Objective

The main objective of this project is to improve the performance of the flux observer to suppress the DC bias and high order harmonics in the interior permanent magnet synchronous machine.

Abstract

In this project, due to various non-ideal factors, including the motor parameter mismatches, detection errors, converter nonlinearities, noise, etc. DC bias and high order harmonics exist in flux model, which make the traditional flux observer estimation inaccurate. In order to suppress DC bias and high order harmonics, an interior permanent magnet synchronous motors (IPMSM) sensorless drive method based on a fifth order flux observer (FOFO) is proposed in this paper.

The proposed FOFO can completely remove DC bias and has strong filtering ability for high order harmonics. Additionally, the parameters of the FOFO are set through s-domain analysis. Then, the discrete FOFO is obtained to better implementation in digital systems. The simulation results are simulated by using Matlab/Simulink 2018a Software.

Keywords: Interior permanent magnet synchronous motors, fifth order flux observer, sensorless drive, and DC bias, high order harmonics

NOTE: Without the concern of our team, please don't submit to the college. This Abstract varies based on student requirements.