Robust Maximum Torque per Ampere Strategy for Permanent Magnet Synchronous Motor Based on PI-Sliding Mode Controller

Eydi, Mohammad; Khoshhava, Mojtaba Ayaz; Zarchi, Hossein Abootorabi

doi:10.1109/pedstc.2019.8697826

Cited by 3 publications

(1 citation statement)

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“…The latter optimization method is very popular amongst PM machines where many improvements can be found in literature, contrarily to EESMs which MTPA related works are not as popular as functional safety studies [4]. Some research suggests taking the PM synchronous machine parameter variations into account for a much precise control algorithm, as in [5] where a Sliding Mode Controller (SMC) is used to shift the operating point to correct the minimum stator current imprecision due to parameter variations. Whereas in [6], the Recursive Least Square (RLS) estimation method is used for the same matter but on an IPMSM.…”

Section: Introductionmentioning

confidence: 99%

Minimum Copper Losses Per Torque Optimization on Electrically Excited Synchronous Motors for Electric Vehicles Applications

Zaghrini

Khoury

Fadel

et al. 2022

2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC)

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Increased environmental and energy security concerns have made electric vehicles an attractive solution over the recent years. Therefore, improving their traction chain global efficiency, especially in high-speed region, became a major task in today's research. This paper investigates a novel optimization method applied on electric vehicles motorized by an Electrically Excited Synchronous Motor (EESM). The study proposes an algebraic method based on the Lagrange multiplier technique to control the motor torque efficiently while extending its speed limit using the additional degree of freedom offered by this type of machines. The reference currents are calculated offline and stored in lookup tables (LUT) using MATLAB/Simulink. The proposed method is compared to conventional Maximum Torque Per Ampere (MTPA) strategies applied on Internal Permanent Magnet Synchronous Machines (IPMSM) by maintaining the EESM excitation current constant and controlling the d-q axis currents for a likewise behavior. The optimization and speed limit extension benefits of the novel control scheme, especially in high-speed region, are emphasized via simulation results in the torque/speed domain.

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Section: Introductionmentioning

confidence: 99%