针对传统转子永磁型同步发电机存在转子散热困难、宽范围运行永磁体脱落、感应发电机可靠性低及发电机外置影响往复气流流动的问题,结合波浪能发电的发展需求,提出将外转子结构的高可靠性定子永磁型磁通切换发电机应用于振荡水柱波浪能发电装置。在确定发电机结构参数后,采用有限元法对其进行优化设计并分析电磁性能,完成样机研制并进行测试。样机测试结果验证了电磁分析的正确性。
Abstract
To address challenges associated with traditional rotor permanent magnet synchronous generators, such as rotor heat dissipation difficulties, permanent magnet detachment under wide-range operation, low reliability of induction generators, and adverse effects of external generators on reciprocating airflow, a high-reliability stator permanent magnet flux-switching generator with an outer rotor structure is proposed for oscillating water column wave energy conversion systems. After determining the structural parameters of generators, the finite element method is employed for optimal design and electromagnetic performance analysis. A prototype is developed and tested, with the test results validating the accuracy of the electromagnetic analysis.
关键词
振荡水柱 /
波浪能 /
永磁发电机 /
磁通切换 /
有限元 /
外转子
Key words
oscillating water column /
wave energy /
permanent magnet generator /
flux switching /
finite element /
outer rotor
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基金
国家海洋可再生能源专项资金项目（GHME2018SF02）; 国家自然科学基金联合基金项目（U20A20106）
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