可偏转双定子开关磁阻式发电机磁热固耦合场分析

Magnetic-thermal-solid field analysis of deflectable double-stators switched reluctance generator

针对现有开关磁阻发电机转子旋转单一性和风能利用率较低的问题及发电机存在的高噪声高振动问题,提出了一种新型可偏转双定子开关磁阻式风力发电机。该发电机采用内、外双定子结构,在转子两侧连接液压控制台可实现多自由度偏转,适应不同风向并适用于各类风力发电场合;通过磁热固耦合场的仿真计算,得到了温升、应力及振动位移等情况。研究结果表明:双向耦合分析比单向耦合更能体现实际情况;在进行多物理场耦合分析时,所受应力较小振动位移属纳米级别,对发电机影响较小。

Aiming at the single of the rotor rotation of the existing switched reluctance generator the low utilization of wind energy and the problems of high noise and high vibration of generator a new type of deflectable double stators switched reluctance wind power generator was proposed. The inner and outer double stators structures were applied to the generator. In order to achieve multi degree of freedom deflection a dapt to different wind directions and apply to all types of wind power generation the hydraulic console was connected to both sides of the rotor. Through the calculation of the magneto thermo solid coupling field the temperature rise stress and vibration displacement were obtained. The results show that the two way coupling analysis can better reflect the actual situation than one way coupling analysis. In the multi physical field coupling analysis the stress is small the vibration displacement belongs to nanometer level and has little influence on the generator.