Technical Papers and Presentations

The rapid growth of electric vehicles (EVs) has spurred significant advancements in motor design to optimize their performance and efficiency. Among the key components of an electric vehicle, the permanent magnet synchronous motor (PMSM) plays a crucial role in converting electrical energy into mechanical power. However, the efficient operation of PMSMs is highly dependent on managing their temperature, as excessive heat can lead to performance degradation and reduced lifespan. To address this challenge, this study focuses on developing an inclusive model for a PMSM used in electric vehicles. By utilizing the COMSOL Multiphysics® software, the aim is to optimize the motor's performance and temperature through the integration of an efficient cooling system. This research seeks to provide a realistic representation of the motor's operation and assess different cooling strategies' impact on electromagnetic performance and thermal management. To achieve accurate results, the study employs the Rotating Machinery, Magnetic interface to calculate losses and accurately simulate the electromagnetic behavior of the motor. The thermal interface is coupled with the electromagnetic interface to analyze the temperature distribution, considering heat generation and dissipation. A bidirectional coupling was implemented to gain a comprehensive understanding of the motor's behavior, evaluating different cooling strategies and their impact on electromagnetic performance and thermal management. The main contribution of this research lies in the creation of a customized user interface using the Application Builder. This interface allows customers to study and evaluate the PMSM's performance under different operating conditions, facilitating informed decisions about cooling options based on specific requirements. Through the analysis of various cooling solutions, valuable insights are obtained, assisting in the selection of optimal cooling strategies for improved motor performance. The results of the study demonstrate the successful integration of the cooling system, leading to a significant reduction in the motor's operating temperature. The developed interface empowers customers to explore and understand the motor's performance characteristics, contributing to enhanced decision-making regarding cooling options. This research emphasizes the crucial role of effective thermal management in ensuring the efficiency and reliability of PMSMs. The findings provide valuable insights into motor cooling techniques and serve as a valuable resource for engineers and designers seeking to enhance the performance and lifespan of PMSMs in electric vehicles.