摘要
为了扩大电机的恒功率电动或恒压发电的转速范围,提出一种结构新颖的独立磁路混合励磁电机。详细论述该电机的结构特征和工作机理。以一台12极、18槽、2单元的样机为例,运用Ansoft Maxwell 2D有限元软件,仿真分析该电机的磁场调节能力;运用ANSYS有限元软件,仿真分析该电机的离心应力、固有频率及其热性能,验证独立磁路混合励磁电机结构的可行性和合理性。样机试验结果表明:励磁磁势双向可调,磁场的调节范围宽广;由于结构紧凑,定子铁心和电枢绕组的有效利用率高,独立磁路混合励磁电机有较高的效率。样机试验数据与有限元仿真结果基本吻合,验证了多领域仿真方法的正确性。它有效地解决了新结构独立磁路混合励磁电机性能精确计算和优化设计的技术难点,进一步提升了独立磁路混合励磁电机的设计能力。
In order to extend the speed range for the constant-power motoring mode or the constant-voltage generating mode of the electric machine,a new structure of hybrid excitation machine with isolated magnetic paths （HEIMP） is presented.Its structural characteristics and operation mechanism are detailed.The prototype machine with 12 poles,18 slots and 2 units is simulated and analyzed with the Ansoft Maxwell 2D finite element （FE） software for its field adjustability,and with the ANSYS FE software for its centrifugal stress,natural frequency and thermal characteristics in order to verify the structural feasibility and rationality of the HEIMP machine.The test on the prototype machine shows the adjustability of the excitation mmf on both directions and the magnetic field in a wide range.Due to the compact,the utilization of its stator iron core and its armature winding is effective,therefore,the HEIMP machine possesses high efficiency.The test results of the prototype machine show good agreement with the FE simulation ones,which verifies the correctness of the multi-domain simulation technique.It solves the technical problems effectively in the accurate characteristics calculation and the design optimization of the new structure HEIMP machine and therefore,promotes its design capability.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2010年第6期8-15,共8页
Journal of Mechanical Engineering
基金
国家自然科学基金(50337030)
国家高技术研究发展计划(863计划
2008AA11A108
2008AA11A109)
上海市博士后基金(08R214123)资助项目
关键词
独立磁路
混合励磁
多领域
仿真
Isolated magnetic path Hybrid excitation Multi-domain Simulation
