关于无刷电机FOC驱动算法的研究.docxVIP

内容摘要 近些年来，高新技术产业得到了迅速发展，很多技术产品也随着成产，但是，人们对产品性能的要求也愈加高。无刷直流电机是很多技术产品的核心部分，遍及于交通工具和工业设备等各个高新技术领域，相对于传统的控制方法，FOC具有效率高，噪声小，响应快等特点，因此近年来FOC算法发展非常迅速。 本文主要提出一种控制无刷直流电机的算法，通过对无刷直流电机控制系统的框架设计，尝试应用STM32达到FOC驱动控制板的基础上，推导FOC控制算法中的主要公式。通过FOC算法控制无刷直流电机，既避免传统无刷直流电机的控制算法的不足，又提高电机系统运作效率；此外，FOC再结合无位置传感器算法，使得控制效能提高，减少了工艺成本，增大应用范围。 关键词： FOC；无刷电机；STM32；无位置传感器；电机参数 Abstract In recent years, the high-tech industry has developed rapidly, and a lot of technical products have been produced along with it. Brushless dc motor is the core part of many technical products, covering various high-tech fields such as transportation vehicles and industrial equipment. Compared with traditional control methods, FOC has the characteristics of high efficiency, low noise and fast response. Therefore, FOC algorithm has developed rapidly in recent years. This paper mainly proposes an algorithm to control the brushless dc motor. Through the frame design of the brushless dc motor control system, it tries to use STM32 to achieve the FOC drive control panel, and then deduces the main formula of the FOC control algorithm. The brushless dc motor is controlled by FOC algorithm, which not only avoids the shortage of the traditional brushless dc motor control algorithm, but also improves the operation efficiency of the motor system. In addition, FOC combined with sensorless algorithm improves control efficiency, reduces process cost and increases application scope. Keywords: FOC；BLDCM； STM32；Sensorless；Motor Parameter 目 录 1.绪论…………………………………………………………………………1 1.1研究背景………………………………………………………………1 1.2国内外研究现状………………………………………………………1 1.3选题背景和研究内容…………………………………………………2 1.4论文结构………………………………………………………………2 2.无刷直流电机控制系统的基本结构………………………………………4 2.1 无刷直流电机控制系统的基本结构…………………………………4 2.1.1机械结构主体……………………………………………………4 2.1.2无刷直流电机驱动部分…………………………………………5 2.2 无刷直流电机的控制原理……………………………………………5 2.3 无刷直流电机电流采样………………………………………………6 2.4 无刷直流电机起动……………………………………………………9 2.4.1三段式起动法……………………………………………………9 2.5 自动测量电机参数……………………………………………………9 2.5.1绕组电阻…………………………………………………………