CAJ | 학술논문

以异步电动机矢量控制的基本方程式为基础,构建了一个无速度传感器矢量控制系统。该系统的转速估计采用模型参考自适应控制理论,并对自适应机构以分段变参数方式进行改进,以提高估计速度和精度;转速调节器利用模糊自适应PI进行改进,以提高异步电机的可靠性和鲁棒性。仿真结果表明,该控制系统动态性能良好,转速估计能快速准确地跟踪,系统具有较强的鲁棒性和稳定性。
이이보전동궤시량공제적기본방정식위기출,구건료일개무속도전감기시량공제계통。해계통적전속고계채용모형삼고자괄응공제이론,병대자괄응궤구이분단변삼수방식진행개진,이제고고계속도화정도;전속조절기이용모호자괄응PI진행개진,이제고이보전궤적가고성화로봉성。방진결과표명,해공제계통동태성능량호,전속고계능쾌속준학지근종,계통구유교강적로봉성화은정성。
A speed sensorless vector control system was established based on the fundamental equation of vector control of asynchronous motor. The theory of model referencing adaptive control was applied to the system rotor-speed- estimation and the adaptive institutions were modified by way of segmented variable parameters in order to improve the estimation speed and accuracy; The adaptive fuzzy PI control was brought in speed regulator to improve the reliability and robustness of asynchronous motor, Simulation results showed that the system had a better dynamic performance and tracked the variation of the motor speed accurately, and it had strong robustness and stability.