轴向叠片各向异性转子同步磁阻电机直接转矩控制的研究

轴向叠片各向异性转子电机具有许多优点，但也存在一些缺点，如起动时需要位置传感器保持转子与磁链同步，电机参数（特别是直轴电感）易受饱和影响而使控制系统复杂等缺点。直接转矩控制具有无位置（速度）传感器，且除定子电阻外不需要其他参数等。介绍了同步磁阻电机控制的研究现状，提出了同步磁阻电机适合使用直接转矩控制技术。通过对四极2.2kW ALA转子样机进行的DSP控制实验研究，验证了ALA转子同步磁阻电机直接转矩控制方案的可行性。

Research on Direct Torque Control of ALA Rotor Synchronous Reluctance Machine

The axially laminated anisotropic (ALA) synchronous reluctance machine (SRM) has many distinctive advantages. However, the lack of starting cages results in the requirement of a position sensor to ensure the synchronism between the rotor and the flux during startup. The sensorless direct torque control (DTC) scheme is introduced to ALA-SRM for good robustness and least parameter requirement excluding the stator resistance. It avoids the manipulation of complicated control algorithm due to the saturation of parameters, especially the direct axis inductance Ld. An experimental investigation on a DSP (TMS320LF2407A) controlled 2.2kW ALA-SRM verifies that the DSP-based control of ALA-SRM is effective.