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用于优化离网抽水的无刷直流电机和开关磁阻电机的对比分析

Comparative analysis of brushless DC and switched reluctance motors for optimizing off-grid water pumping.

作者信息

Kumar Avinash, Marwaha Sanjay, Manna Manpreet Singh, Marwaha Anupma, Kumar Rajat, Amir Mohammad, Bajaj Mohit, Zaitsev Ievgen

机构信息

Department of EIE, SLIET, Longowal, India.

Department of ECE, SLIET, Longowal, India.

出版信息

Sci Rep. 2025 Jan 28;15(1):3527. doi: 10.1038/s41598-025-88045-w.

DOI:10.1038/s41598-025-88045-w
PMID:39875563
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11775130/
Abstract

Off-grid water pumping systems (OGWPS) have become an increasingly popular area of research in the search for sustainable energy solutions. This paper presents a finite element method (FEM)-based design and analysis of Brushless-DC (BLDC) and Switched Reluctance Motors (SRM) designed for low-power water pumping applications. Utilizing adaptive finite element analysis (FEA), both motors were designed with identical ratings and design parameters to ensure a fair comparison. The design geometries adhere to the NEMA 42 standard. An (n + 1) switch converter topology was implemented to energize SRM phases, while a Cuk converter coupled with a three-phase voltage source inverter (VSI) was used to power the BLDC motor. The study provides a comprehensive comparative analysis of the torque profiles of both motor types under identical operating conditions. The BLDC motor achieved a maximum torque of 11.5 Nm and an efficiency of 91.9%, while the SRM demonstrated a maximum torque of 3.8 Nm and an efficiency of 94.6%. The torque ripple of the BLDC motor was significantly lower (0.73 pu) compared to the SRM (1.19 pu), indicating smoother operation. Simulation results obtained using advanced computational electromagnetic tools highlight the performance efficiencies and potential advantages of each motor type for off-grid water pumping systems. This research investigates the viability of both BLDC and SRM technologies in enhancing the efficiency and reliability of OGWPS, with the BLDC motor showing superior performance in terms of torque and operational smoothness. The simulation results of converter topologies used for respective motors have been further validated using experimentation on respective prototype motors.

摘要

离网水泵系统（OGWPS）在寻求可持续能源解决方案的过程中已成为一个越来越受欢迎的研究领域。本文介绍了一种基于有限元方法（FEM）的无刷直流（BLDC）和开关磁阻电机（SRM）的设计与分析，这些电机专为低功率水泵应用而设计。利用自适应有限元分析（FEA），两台电机均采用相同的额定值和设计参数进行设计，以确保公平比较。设计几何结构符合NEMA 42标准。采用（n + 1）开关变换器拓扑为SRM相供电，而采用Cuk变换器与三相电压源逆变器（VSI）相结合为BLDC电机供电。该研究对两种电机在相同运行条件下的转矩特性进行了全面的比较分析。BLDC电机实现了11.5 Nm的最大转矩和91.9%的效率，而SRM的最大转矩为3.8 Nm，效率为94.6%。与SRM（1.19 pu）相比，BLDC电机的转矩脉动显著更低（0.73 pu），表明其运行更平稳。使用先进的计算电磁工具获得的仿真结果突出了每种电机类型在离网水泵系统中的性能效率和潜在优势。本研究调查了BLDC和SRM技术在提高OGWPS效率和可靠性方面的可行性，其中BLDC电机在转矩和运行平稳性方面表现出卓越性能。用于各电机的变换器拓扑的仿真结果已通过对各原型电机的实验进一步验证。

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