摘要
无刷双馈感应电机（BDFIM）去除了电刷和滑环，与传统双馈感应电机（DFIM）相比，因可靠性高等优点，更具有吸引力。本文提出了一种针对无刷双馈感应电机的无传感器磁场定向控制策略，这就进一步增加了它作为驱动系统的吸引力。通过一个易懂的、替代方案的时间动态无刷DFIM模型，建立一个基于无刷DFIM的驱动系统模型，用以研究无传感器控制策略，并在一个实验装置上实现。仿真和测量结果表明，本文提出的无传感器控制策略可以使无刷DFIM在全转速运行范围具有足够的稳定性和响应效果。本文首次论证了一个完整有效的针对无刷DFIM的无传感器控制策略。
The brushless doubly fed induction machine （DFIM）, without brushes and slip rings, is regarded as an attractive alternative to the conventional DFIM in terms of reliability. This paper presents a sensorless field-oriented control strategy for the brushless-DFIM, which further increases its attractiveness as a drive system. With the use of a straightforward and alternative time-dynamic brushless-DFIM model, a complete brushless-DFIM based drive is modeled and used for the development of the sensorless control strategy. The developed sensorless control strategy is implemented in an experimental setup. Simulation and measurement results demonstrate that the developed sensorless control strategy can control the brnshless-DFIM in a stable and responsive manner over its full operating speed range. In this way, a fully functional sensorless control strategy for the brushless-DFIM is demonstrated for the first time in the literature.
