<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The popularity of electrified transportation is rising at a sharp pace due to environmental concerns over internal combustion (IC) engines. Researchers are nowadays looking for a brushless and permanent magnet (PM)-less solution for electric vehicle (EV) motors. Wound-field synchronous motor (WFSM) is a potential solution for EVs and is being used in Renault Zoe EV and BMW iX3 e-Drive models. A Brushless Induction excited Synchronous Motor (BINSYM) is a WFSM where the exciter, an induction machine (IM), is embedded inside the synchronous machine (SM) frame. Two machines (SM and IM) are configured for different numbers of poles to achieve magnetic decoupling, which facilitates independent control of both machines. The purpose of IM is to maintain the excitation requirement of SM. The IM is controlled in deep-plugging mode at a constant slip frequency over the entire speed range to minimise its reactive power demand. The maximum torque per ampere (MTPA) and root mean square (rms) current minimisation algorithms are used to control the SM. Simulation of the BINSYM-based system under dynamic conditions (MTPA with varying field current and load transient) has been carried out in MATLAB/Simulink to validate the control strategies. Experimental findings from the laboratory prototype machine closely match the simulation results.</p>
</abstract>

The popularity of electrified transportation is rising at a sharp pace due to environmental concerns over internal combustion (IC) engines. Researchers are nowadays looking for a brushless and permanent magnet (PM)-less solution for electric vehicle (EV) motors. Wound-field synchronous motor (WFSM) is a potential solution for EVs and is being used in Renault Zoe EV and BMW iX3 e-Drive models. A Brushless Induction excited Synchronous Motor (BINSYM) is a WFSM where the exciter, an induction machine (IM), is embedded inside the synchronous machine (SM) frame. Two machines (SM and IM) are configured for different numbers of poles to achieve magnetic decoupling, which facilitates independent control of both machines. The purpose of IM is to maintain the excitation requirement of SM. The IM is controlled in deep-plugging mode at a constant slip frequency over the entire speed range to minimise its reactive power demand. The maximum torque per ampere (MTPA) and root mean square (rms) current minimisation algorithms are used to control the SM. Simulation of the BINSYM-based system under dynamic conditions (MTPA with varying field current and load transient) has been carried out in MATLAB/Simulink to validate the control strategies. Experimental findings from the laboratory prototype machine closely match the simulation results.

Excitation Control of Brushless Induction Excited Synchronous Motor with Induction Machine Operating in Deep-Plugging Mode

Power Electronics and Drives

This work is licensed under the Creative Commons Attribution 4.0 International License.

The popularity of electrified transportation is rising at a sharp pace due to environmental concerns over internal combustion (IC) engines. Researchers are...

Excitation Control of Brushless Induction Excited Synchronous Motor with Induction Machine Operating in Deep-Plugging Mode

Published Online: Apr 16, 2024

Page range: 257 - 271

Received: Jan 12, 2024

Accepted: Mar 16, 2024

DOI: https://doi.org/10.2478/pead-2024-0017

Keywords
wound-field synchronous machine, brushless excitation, BINSYM, magnetic decoupling principle, EV motors

© 2024 Amit Kumar Mondal et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Excitation Control of Brushless Induction Excited Synchronous Motor with Induction Machine Operating in Deep-Plugging Mode

Published Online: Apr 16, 2024

Page range: 257 - 271

Received: Jan 12, 2024

Accepted: Mar 16, 2024

DOI: https://doi.org/10.2478/pead-2024-0017

Keywordswound-field synchronous machine, brushless excitation, BINSYM, magnetic decoupling principle, EV motors

© 2024 Amit Kumar Mondal et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
wound-field synchronous machine, brushless excitation, BINSYM, magnetic decoupling principle, EV motors