A Novel Two-Axis Theory-Based Approach Towards Parameter Determination of Line-Start Permanent Magnet Synchronous Machines

Understanding the importance and the scanty availability of research literature on parameter estimation of line-start permanent magnet synchronous machine (LSPMSM), this paper proposes a novel and yet fundamental approach towards parameter estimation. Experiments have been performed on a laboratory LSPMSM based on the proposed dq axis methodology and measurements have been validated by analyzing the performance of the machine under different conditions using a developed computer program and an experimental setup. Dynamic and steady state performance analyses have been subsequently performed using the determined parameters and the results have been presented under direct online (DOL) starting and a sudden increase in load torque.