风力发电用永磁发电机的开发

Research on Permanent-magnet Generator for Windpower Generation

风力发电用永磁发电机(PMG),是在转子上装有永磁体的多极低速发电机,可直接与风轮连接而运转,具有维护性能优良的特点。本PMG的开发中,选定最佳的磁体尺寸与配置,对各部的温度进行研讨,利用FEM(有限元法)分析手段对运转中的外力及由磁力引起的PMG变形进行了研究与检测。而且,通过实际的负荷试验测定了电气特性等,已确认质量可靠,设计参数完全符合要求。

PMG for wind-power generation is a kind of multi-pole low-speed generator with its rotor having PM installed. This allows for the direct connection of wind wheel, thus enjoying the advantage of easy maintenance. By this research, optimal manget size and configuaration are selected, temperature of each part is fully matched, and FEM analysis tool is used to look into and test PMG distortion resulting from outside force and magnetic force when it is in operation. Furthermore, real loan testing measures the electric features and verifies that the PMG is reliable and parameters completely meet related requirements.