基于优化锁相环结构的自适应滑模观测器的SPMSM无传感器控制

IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Hongchang Ding, Jinhong Li, Linchao Wei, Xinhong Zou
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引用次数: 0

摘要

为了提高表面贴装式永磁同步电机矢量控制的速度和位置检测精度,减少系统不必要的抖振,提出了一种基于自适应滑模观测器的表面贴装式永磁同步电机无传感器控制策略。首先,为了克服传统滑模观测器中sgum函数的不连续切换特性引起的系统抖振,选择连续饱和函数作为切换函数;ASMO采用与系统状态相关的自适应增益函数实时调节系统的开关增益值,克服了CSMO恒定开关增益导致系统响应速度慢或抖振严重的问题。其次,为了减小由于采用低通滤波器(LPF)造成的转子位置估计值与实际值之间的相位延迟以及arctangent函数法造成的位置估计值误差,设计了一种OPLL方法来精确估计转子位置和转速。最后,在额定功率为2kw的SPMSM上进行了仿真和实验,验证了改进SMO算法的有效性和可行性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sensorless control of SPMSM based on an adaptive sliding mode observer with optimized phase-locked loop structure
To improve the speed and position detection accuracy of surface-mount permanent magnet synchronous motor (SPMSM) vector control and reduce unnecessary chattering of the system, this paper proposes a sensorless control strategy of SPMSM based on an adaptive sliding mode observer (ASMO) with optimized phase-locked loop (OPLL) structure. First, in order to overcome the chattering of system caused by discontinuous switching characteristic of signum function in conventional sliding mode observer (CSMO), a continuous saturation function is selected as the switching function. The ASMO adopts the system state-related adaptive gain function to adjust the switching gain value of the system in real time, which overcomes the slow response speed or severe chattering of the system caused by the constant switching gain of CSMO. Second, to reduce the phase delay between the rotor position estimation value and the actual value caused by the adoption of low-pass filter (LPF) and the position estimation error caused by arctangent function method, an OPLL method is designed for accurate estimation of rotor position and speed. Finally, the effectiveness and feasibility of the proposed improved SMO algorithm is verified by simulation and experiments on an SPMSM with rated power of 2 kW.
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来源期刊
CiteScore
1.70
自引率
0.00%
发文量
100
审稿时长
4.6 months
期刊介绍: The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are: Physics and mechanics of electromagnetic materials and devices Computational electromagnetics in materials and devices Applications of electromagnetic fields and materials The three interrelated key subjects – electromagnetics, mechanics and materials - include the following aspects: electromagnetic NDE, electromagnetic machines and devices, electromagnetic materials and structures, electromagnetic fluids, magnetoelastic effects and magnetosolid mechanics, magnetic levitations, electromagnetic propulsion, bioelectromagnetics, and inverse problems in electromagnetics. The editorial policy is to combine information and experience from both the latest high technology fields and as well as the well-established technologies within applied electromagnetics.
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