基于改进数值方法的全转速范围开关磁阻电机无位置传感器控制

Due to its simple and robust structure and reliable operation, switched reluctance motor (SRM) has drawn much attention from researchers, and is widely used in hash environment such as mining, oil and textile industries. However, SRM needs the positon information from a position sensor to operate, this position sensor reduces the system reliability. In order to solve the problems of insufficient theoretical analysis, week reliability and slow dynamic response of current position sensorless control methods for SRM, in this project, a new sensorless control method based on numerical method and phase locked loop observer is going to be researched. This method is able to significantly reduce the influence on estimated rotor position caused by current sampling noise, thus improves the system reliability. The system dynamic performance could be designed by adjusting the observer parameters. In this project, the analyze method of the system stability and the design method of the system dynamic response will be researched. The implementation of this method for zero speed, low speed, high speed and super high speed will also be researched. After this research, a high reliability, high dynamic performance, full speed range sensorless control method for SRM will be proposed, which will be the foundation of the widespread application of SRM in industries.

开关磁阻电机因其结构简单坚固、运行可靠而备受关注，在矿山、油田和纺织等环境恶劣的工业领域有广泛的应用。但是开关磁阻电机需要位置传感器提供转子位置信息，降低了系统的可靠性。本项目针对当前开关磁阻电机无位置传感器控制方法理论分析不足、可靠性不高、动态响应慢的缺点，拟开展基于数值计算和锁相环观测器的开关磁阻电机无位置传感器控制方法的研究。该方法可以有效抑制电流采样噪声对位置估计结果的影响，提高系统的可靠性。系统的动态性能也可以由观测器参数调节。本项目主要研究该控制方法的稳定性分析和动态性能设计方法，以及其在零速、低速、高速、超高速运行时的应用技术。通过本项目的开展，将提出具有高可靠性、高动态性能的全转速范围开关磁阻电机无位置传感器控制方法，为开关磁阻电机在工业领域的广泛应用奠定基础。

开关磁阻电机因其结构简单坚固、运行可靠而备受关注，在矿山、油田和纺织等环境恶劣的工业领域有广泛的应用。但是开关磁阻电机需要位置传感器提供转子位置信息，降低了系统的可靠性，提高了成本。本项目针对当前开关磁阻电机无位置传感器控制方法理论分析不足、可靠性不高、动态响应慢的缺点，开展了基于数值计算和锁相环观测器的开关磁阻电机无位置传感器控制方法的研究。该方法可以有效抑制电流采样噪声对位置估计结果的影响，提高系统的可靠性。系统的动态性能也可以由观测器参数调节。本项目主要研究了该控制方法的稳定性分析和动态性能设计方法，以及其在零速、低速、高速、超高速运行时的应用技术。通过本项目的开展，提出了一种具有高可靠性、高动态性能的全转速范围开关磁阻电机无位置传感器控制方法，为开关磁阻电机在工业领域的广泛应用奠定基础。同时将所提出的开关磁阻电机的位置检测和电流控制方法，应用到了永磁同步电机的控制中，扩展了该控制方法的应用领域。