학술논문
A novel MTPA based SVM DTC for SPMSM to improve transient performance with reduced copper loss and switching loss employing bus clamping PWM
Document Type
Conference
Author
Source
2023 IEEE International Conference on Power Electronics, Smart Grid, and Renewable Energy (PESGRE) Power Electronics, Smart Grid, and Renewable Energy (PESGRE), 2023 IEEE International Conference on. :1-7 Dec, 2023
Subject
Language
Abstract
The variable switching frequency issues associated with the conventional DTC scheme is mitigated by replacing the hysteresis controllers and look up tables with space vector modulation (SVM) scheme. However, permanent magnet synchronous motor (PMSM) operated with SVM DTC uses more PI controllers and makes the system complex which affects its transient performance. This paper proposes a novel method which makes the system simpler with better transient performance by replacing one of the PI controllers with an intuitive equation. Implementation of maximum torque per ampere control (MTPA) reduces the copper loss in the motor and using bus clamping technique, switching losses in the inverter is reduced, thereby increasing the system’s overall efficiency. Reduction of current THD is marked as an additional advantage. To demonstrate the viability of the proposed control technique, an in-depth analytical study is conducted along with PI controller design, and the results are validated using simulations in MATLAB/Simulink.