一种新的无刷双馈电机轴带系统矢量控制方案

摘要

Brushless doubly fed induction motor (BDFM) offered the merit of high reliability due to its brushless operation.Furthermore,when the BDFM was supplied with a fractionally-rated converter,the total system cost decreases.These characteristics were suitable in the application of shaft generation in which the speed range was strictly limited.A vector control scheme oriented on the power winding flux reference frame to achieve stable standalone operation was proposed.Detailed mathematical model was introduced before the control structure was explained.Experimental results on steady state and transient performance were carried out to verify the control scheme.%无刷双馈电机(BDFM)由于其无刷设计具备高可靠性,并且BDFM仅需要使用一个部分功率变频器,可降低系统总成本.这些特性非常适用于速度范围被严格限制的轴带发电.提出了一种基于功率绕组磁链同步坐标系的矢量控制方案,能够实现稳定的独网运行.详细介绍了控制的数学模型和相关推导,并进行了稳态和瞬态性能的试验验证.