Work

Overview of High Power Density Machines

Year: 2025

Type: article

Abstract: With the continued advancement of deep electrification across various industries, the demand for higher power density in electric machines is steadily increasing. However, realizing high power density remains a significant technical challenge and has become a major bottleneck in machine development. The design of such machines is inherently constrained by the strong coupling among electromagnetic (EM), thermal, and mechanical domains, while systematic analyses of these challenges remain insufficient. This paper clarifies the interdependent relationships among these domains during the machine design process. It reviews key enabling strategies, including machine design based on advanced electromagnetic theory, innovative thermal management techniques, cutting-edge material advancements, and state-of-the-art manufacturing technologies, that collectively enhance the performance and feasibility of high power density machines (HPDMs). The insights provided aim to support the development of next-generation machine systems with higher power density, compact size, and robust, sustainable performance across a wide range of industrial and technological applications.

Source: CES Transactions on Electrical Machines and Systems

DOI: 10.30941/cestems.2025.00030

Authors: Shaofeng Jia, Yuchen Xu, Jun Lin, Deliang Liang, Ronghai Qu, Jinjun Liu

Institutions: State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Huazhong University of Science and Technology

Language: English

Topic: Electric Motor Design and Analysis

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: diamond

Funders: National Natural Science Foundation of China, National Key Research and Development Program of China