摘要
为了提高系统可靠性,将余度技术引入到永磁无刷直流电机设计中。设计了2种定子绕组方式,包括同槽嵌放和隔槽嵌放结构。建立了2种结构下的数学模型,对绕组电感进行了分析计算,推导了绕组自感和互感之间的关系。根据数学模型,设计了双余度永磁无刷直流电机的具体结构参数,对转速和转矩进行了仿真。利用magtrol测试系统对双余度永磁无刷直流电机进行了实验,对比分析了2种结构不同工作模式下的机械特性曲线。实验结果表明:2种结构的双余度无刷直流电机在运行过程中,具有良好的动态特性,2套绕组同时工作时其转矩为1套绕组工作时的2倍;2套绕组并未对电机性能产生不良影响,但大大提高了系统可靠性。
In order to improve the reliability of the system, the redundancy technology is introduced into the design of permanent magnet BLDCM. Sections 1 through 3 of the full paper explain our design, computer simulation and experimental research ; we believe that our design is effective. The core of section 1 consists of： （ 1 ） two kinds of stator structure are designed, including one slot and two slots ; （2） the mathematical model of the motor is set up ; the winding inductance is analyzed and calculated, and the relationship between the winding inductance and mutual inductance is deduced. The core of section 2 is that, according to the mathematical model, the parameters of the motor are designed and the rotational speed and torque are simulated. The core of section 3 consists of： （1） the motor is tested on the MAGTROL testing system; （2） the mechanical characteristic curves of both kinds of stator structure under different working modes are compared. The simulation results are given in Figs. 3 through 6 and the experimental results are given in Figs. 7 through 12. Both the simulation and the experiment results show that： （1） the motor of each kind can achieve good dynamic characteristics and the torque is increased by 100% with two sets of windings ; （2） two sets of winding did not affect motor performance, but it did indeed greatly improve the system reliability.
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
2012年第5期724-728,共5页
Journal of Northwestern Polytechnical University
基金
西北工业大学基础研究基金(JC201146)
西安市碑林区科技计划(GX1110)资助
关键词
双余度
永磁无刷直流电机
设计
实验
brushless DC motors, computer simulation, control, design, experiments, fault tolerance, mathematical models, permanent magnets reliability
dual-redundancy
