摘要
针对永磁同步电机自身特点及转子位置和速度检测问题,采用最优转矩控制策略,提出了将脉振高频电压信号注入法和模型参考自适应法有机结合的新型无速度传感器的复合方法,设计了PMSM无速度传感器的SVPWM最优转矩控制系统。通过设计速度切换方案,实现速度的平稳过渡。此复合方法解决了单一方法不能在全速度范围内同时兼顾良好的动态、稳态性能的问题。仿真结果表明:该方法能可靠地实现包括初始磁位在内的转子位置和速度的精确检测和控制,系统具有优良的动态、稳态性能。
The problems of rotor position and speed detection in permanent magnet synchronous machine （PMSM） are studied in this paper. A novel compound rotor position self-sensing method is proposed and applied to SVPWM vector control system, which adopts optimal torque control strategy. The method is an organic combination of the fluctuating high frequency voltage signal injection method and model reference adaptive method. A speed-switcher is designed to realize the smoothly switching between the speed. This method can guarantee satisfactory balance between steady and dynamic states, which cannot be obtained using each of the methods. Simulation results illustrate that the proposed method can reliably realize the precise detection and control of the rotor position and speed, including initial position; and the system has good performance both in steady and dynamic states.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2009年第4期706-710,共5页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金(60774048)
国家高技术研究发展计划(863)重点项目(2006AA04Z183)资助
