CAJ | 학술논문

根据永磁同步电动机(Permanent Magnet Synchronous Motor,简称PMSM)的数学模型和转子磁场定向控制策略,建立了采用定子电流最优控制的PMSM驱动系统.利用模糊控制构建自适应模糊PI控制器,实现转速和电流双闭环控制,提高了系统的动态和稳态性能.为使电动机在整个运行速度范围内能输出最大功率,采用交轴电流参考由模糊PI环节给出,直轴电流参考分段,即恒转矩、弱磁扩速及恒功率段,计算给出定子电流最优算法.实验结果表明,基于模糊PI控制的系统模型具有动态响应快、稳态精度高及抗干扰能力强等优点.
근거영자동보전동궤(Permanent Magnet Synchronous Motor,간칭PMSM)적수학모형화전자자장정향공제책략,건립료채용정자전류최우공제적PMSM구동계통.이용모호공제구건자괄응모호PI공제기,실현전속화전류쌍폐배공제,제고료계통적동태화은태성능.위사전동궤재정개운행속도범위내능수출최대공솔,채용교축전류삼고유모호PI배절급출,직축전류삼고분단,즉항전구、약자확속급항공솔단,계산급출정자전류최우산법.실험결과표명,기우모호PI공제적계통모형구유동태향응쾌、은태정도고급항간우능력강등우점.
This paper establishes a permanent magnet synchronous motor(PMSM) drive system,which based on the mathematical model of PMSM in the magnetic field oriented control strategy.Using adaptive PI controller constructed by fuzzy control in achieving speed and current double closed-loop,the dynamic and static performance of this system has been improved.In order to keep the output power maximum in the whole speed range,the optimal stator current vector control is adopted,which the d-axis current reference is calculated by constant torque,flux-weaken and constant power in paragraph and the q-axis current reference is provided by the fuzzy PI.The experimental results show that the system model based on self-adaptive fuzzy PI control has fast response,high accuracy and good anti-jamming capability and so on.