基于观测器的无传感器PMSM驱动器积分滑模控制

N. K. Quang, Doan Quang Vinh, N. D. That, Q. Ha
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引用次数: 6

摘要

提出了一种基于现场可编程门阵列(FPGA)技术的无传感器永磁同步电机(PMSM)观测器积分滑模控制器的设计与评价。为了增强磁通角的鲁棒性,提出了一种基于改进滑模观测器的磁通角估计器,用于估计电流和反电动势,并推导磁通角。这些估计值与计算出的电机转子转速一起反馈到电流环和速度环中进行控制。为了提高永磁同步电机的速度控制性能,设计了一种积分运算的积分滑模控制(ISMC),以提高系统在参数变化和外界干扰下的稳态精度。所开发的控制器已在fpga环境下实现,并采用了高速集成电路硬件描述语言(VHDL)来显示所提出控制系统的优点。通过将基于观测器和积分滑模控制技术集成到PMSM驱动器的速度控制中,可以大大提高系统性能,同时提高其成本效益和可靠性。通过基于Modelsim和Simulink联合仿真方法的仿真结果验证了所提方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Observer-based integral sliding mode control for sensorless PMSM drives using FPGA
This paper presents the design and evaluation of an observer-based integral sliding mode controller for sensorless Permanent Magnet Synchronous Motor (PMSM) drive based on the Field Programmable Gate Array (FPGA) technology. For enhancement of robustness, a flux angle estimator using an improved sliding mode observer is proposed to estimate the current and back electromotive force (EMF) as well as to derive the flux angle. These estimated values together with the computed rotor speed of the motor are fed back for the control purpose in both the current loop and the speed loop. To increase the performance of PMSM speed control, an integral sliding mode control (ISMC) is designed with integral operation to improve steady state accuracy against parameter variations and external disturbances. The developed controller has been implemented in an FPGA-based environment and the very high speed integrated circuit-hardware description language (VHDL) is adopted to show advantages of the proposed control system. By integrating the observer-based and integral sliding mode control techniques into speed control of a PMSM drive, the system performance can be substantially enhanced while improving its cost-effectiveness and reliability. The validity of the proposed approach is verified through simulation results based on Modelsim and Simulink co-simulation method.
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