一种用于永磁同步电机无传感器控制的直流误差抑制自适应二阶反步观测器

In the sensorless control system of permanent magnet synchronous motor, there are inevitable dc bias errors in phase currents and phase voltages due to factors such as measurement errors and inverter nonlinearity, which reduce the reliability of the system and the accuracy of rotor speed and position estimations. This article presents a dc error suppression adaptive second-order backstepping obser...