First, a simple rotor position estimating technique is presented.By measuring the stator current and compensating for the influence of the back EMF, the rotor position and velocity can be estimated.

• 首先，提出一种简单的转轴角度估测方法，经由侦测定子电流，并适当地补偿电动机的反电势的影响，即可准确估测永磁同步电动机的转轴角度与速度。