分类号学号M*********不锈钢精密冲压
学校代码10487 密级
测技术研究
无声鼠标
学位申请人：刘晓彪
学科专业：机械工程
指导教师：宋宝教授
答辩日期：2019年05月14日
A Thesis Submitted in Partial Fulfillment of the Requirements
for the Degree of Master of Engineering
铅封螺丝
Research on Initial Phase and Power Line Phase Sequence Detection Technology of Permanent Magnet Synchronous Motor
Candidate:Liu Xiaobiao
Major:Mechanical Engineering
Supervisor:Prof. Song Bao
Huazhong University of Science and Technology
Wuhan 430074, Hubei, P.R. China
May, 2019
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华中科技大学硕士学位论文
摘要
由于伺服系统具有高效、高精、高响应的特点，随着中国制造2025的实施，其在工业领域得到了越来越广泛的应用。伺服控制系统常使用磁场定向的矢量控制策略，磁场定向控制通过转子相位计算力矩电流分量控制电机运转。在伺服系统启动时，如果初始相位误差大、动力线相序错误，使得控制电角度解析错误，从而直轴和交轴磁链解耦失败，引起伺服系统启动电流大、电机反转等问题。因此，本文对永磁同步电机初始相位检测、动力线相序检测技术进行了深入的研究和分析。 本文在永磁同步电机数学模型的基础上，采用id=0的电机控制策略，搭建了本文永磁同步电机电流控制系统框图。在此基础上，构建了电流闭环锁定转子位置控制策略，并对其进行理论分析和仿真测试，为初始相位及动力线相序检测技术研究提供理论支撑。
基于有速度传感器的矢量控制，对绝对式编码器和增量式编码器初始相位检测技术进行了研究。针对增量式编码器检测初始相位误差大问题，提出反正弦相位逼近和二分法搜索初始相位检测方法。通过对比分析研究利用电机物理特性的旋转电压矢量和电感饱和效应相位检测技术，针对均值电压脉冲注
入幅值难以选择和检测过程中电机微动问题，提出改进电压脉冲幅值的检测方法。基于初始相位检测，结合电机动力线相序错误分析，针对电机编码器差异，提出不同的动力线检测方法，实现了动力线相序校正。
最后搭建了永磁同步电机控制系统实验测试平台，对提出的反正弦逼近法、二分法、改进电压脉冲赋值初始相位检测技术和动力线相序检测技术的有效性和可行性进行实验验证。
关键词：永磁同步电机磁场定向控制转子初始相位电压矢量注入动力线相序电感饱和效应V/F控制
华中科技大学硕士学位论文
Abstract
Due to the high efficiency, high precision and high response of the servo system, with the implementation of China Manufacturing 2025, it has been widely used in the industrial field. The servo control system often uses a field-oriented vector control strategy. The field-oriented control is adopted to control the motor operation by calculating the torque current component of the rotor phase.If the initial phase error is large or the power line phase sequence is wrong when the servo system is started, the control electric angle is parsed incorrectly, and the decoupling of the direct axi
废旧电路板提金技术s and the cross-axis flux linkage fails. It causes problems such as large starting current of the servo system and motor reversal. Therefore, the in-depth research and analysis of the initial phase detection and power line phase sequence detection technology of PMSM are carried out.
Based on the mathematical model of PMSM, the block diagram of the PMSM current control system is established by using the motor control strategy with id=0. On this basis, the current closed-loop locked rotor position control strategy is constructed. And theoretical analysis and simulation tests are carried out to provide theoretical support for initial phase and power line phase sequence detection technology research.
Based on vector control with speed sensor, the initial phase detection techniques of absolute encoder and incremental encoder are studied. Aiming at the problem of large initial phase error detection by incremental encoder, an inverse sinusoidal phase approximation and a binary method for initial phase detection are proposed. By comparing and analyzing the rotating voltage vector and the inductance saturation effect phase detection technology of the physical characteristics of the motor, the method of detecting the voltage amplitude of the voltage pulse is proposed for the difficulty of selecting the mean voltage pulse injection amplitude and the motor micro-motion problem during the detection process. Based on the initial phase detection, combined with the motor power li
ne phase sequence error analysis, different power line detection methods are proposed for the difference of the motor encoder, and the power line phase sequence correction is realized.
Finally, an experimental platform for PMSM control system is built to verify the effectiveness and feasibility of the proposed arcsine approached initial phase, dichotomy initial phase, improved voltage pulse assignment initial phase detection technology and
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