摘要：利用船舶航行中主机的冗余能力带动无刷双馈发电机实现轴带发电，可改变船舶电力一直依赖于柴油发电机组发电的状况，有效地降低燃油成本。目前实用的无刷双馈发电机标量控制策略，虽然简单可靠，无需辨识电机内部参数，但是动态响应慢。该文在详细分析传统标量控制算法原理的基础上，提出了在逆变侧加入电流前馈补偿的改进标量控制算法，最后搭建实验平台验证了改进标量控制算法的有效性和可行性，经测试此装置能满足船舶轴带发电场合的要求。

关键词：无刷双馈电机；标量控制；船舶轴带发电系统；等效电路
Abstract: Using ship main engine to drive brushless doubly-fed machine (BDFM) to generate can change the situation that the shipboard electric power system has been dependent on diesel generator set, reducing ship fuel costs. But the complexity of the structure of BDFM makes its control strategies complex than conventional motor control. Most of the control algorithm is not yet mature. Scalar control is simple and reliable which is widely used, but its resistivity against load disturbances is poor. This paper analyzed the brushless doubly fed machine’s mathematical model, the steady-state equivalent circuit, control principle and put forward an improved scalar control to strengthen the resistivity against load disturbances. Finally, set up a system to simulate the condition of marine shaft generator system, and many tests show the system agrees with the shipboard electric power requirements.

Key words: brushless doubly-fed machine；scalar control；independent power generation system；equivalent circuit