摘要
介绍了设计混合励磁同步电机(HESM)时,涉及的主要技术问题及其方案选择,包括原型电机方案、永磁/电励磁磁势串并联关系、励磁结构方案、定转子槽/极匹配原则和谐波抑制方案等。提出了一个励磁绕组位于转子的HESM样机模型,以该模型为例,计算了调磁特性,研究了斜槽方案对谐波抑制的有效性,分析了电励磁对电感的影响,对于HESM电感的非线性,为简化转矩控制的复杂性,宜采用i_d=0控制。研究了永磁/电励磁比重对调磁特性的影响,以凸极同步发电机为基础,适当增加永磁,设计得到的另一新型HESM,具有较强的励磁能力,且故障发生时可实现有效灭磁。
Some technological issues in designing hybrid excitation synchronous machine） HESM） are presented, including the rotor base of HESM, the topology structure for electrical excitation, the matching rule of stator slot to rotor pole, the harmonic suppres-sion methods, and so on. A HESM with the exciting coils in its rotor （HESM-E-R） is proposed. Besides the flux-regulating char-acteristic of HESM-E-R, the effectiveness of the skewed-slot method in reducing the harmonic order is studied with the finite ele-ment method（FEM）. In addition, the influence of the exciting current on the inductance is also analyzed and calculated. Because of the non-linear variation of HESM^s inductance, id=0 con trolling strategy is recommended for the simplification of the system. Finally, a salient pole synchronous generator combining with the permanent magnet） another novel HESM） is presented. This novel HESM has an excellent ability of flux excitation and flux extinction when electrical failures occur.
出处
《现代雷达》
CSCD
北大核心
2016年第10期54-60,共7页
Modern Radar
基金
国家自然科学基金(50977044)
国家自然科学基金(51377076)
江苏省自然科学基金(BK20151574)
江苏省产学研联合创新资金前瞻项目(BY2014003-09)
关键词
混合励磁同步电机
拓扑结构
谐波抑制
电感特性
调磁特性
hybrid excitation synchronous machine
topology structure
harmonic suppression
inductance characteristic
flux-reg-ulating feature
