Design Optimization and Manufacturing of High-Performance MLS for WEC

IF 4 Q1 Engineering

Chinese Journal of Electrical Engineering Pub Date : 2026-06-01 Epub Date: 2026-03-26 DOI:10.23919/CJEE.2026.000041

Fengyu Shen;Lei Huang;Yuan Li;Minshuo Chen;Minqiang Hu

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Abstract

Wave energy is a promising renewable resource, requiring efficient mechanisms for energy conversion. The magnetic lead screw (MLS), functioning as a trans-rotary magnetic gear, offers a robust, contact-free actuation solution characterized by high thrust force density, inherent overload protection, and environmental benefits. These qualities make it well-suited for wave energy conversion (WEC) systems. Among various MLS configurations, the conventional permanent magnet (PM) type is widely adopted for its high efficiency and simpler structure. However, due to its complex geometry and high cost, the manufacturing of helical PMs faces challenges. The design optimization of the MLS is investigated and an innovative oblique cutting method is introduced for helical PM manufacturing. Compared to the conventional approach, this proposed method not only enhances manufacturing efficiency, but also improves the material utilization rate of PMs, minimizing waste as much as possible. This article provides design guidance for high-performance magnetic transmission devices in WEC systems, offering significant engineering application value.

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WEC高性能MLS的设计优化与制造

波浪能是一种很有前途的可再生能源，需要有效的能量转换机制。磁丝杠（MLS）作为一个跨旋转磁齿轮，提供了一个强大的，无接触的驱动解决方案，其特点是高推力密度，固有的过载保护和环境效益。这些特性使其非常适合于波能转换（WEC）系统。在各种MLS配置中，传统永磁（PM）型以其效率高、结构简单等优点被广泛采用。然而，由于其复杂的几何形状和高昂的成本，螺旋pm的制造面临着挑战。研究了斜切削齿的优化设计，提出了一种新型的斜切削齿制造方法。与传统方法相比，该方法不仅提高了制造效率，而且提高了pm的材料利用率，最大限度地减少了浪费。本文为WEC系统中高性能磁传动装置的设计提供了指导，具有重要的工程应用价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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