无刷双馈独立发电系统的无位置传感器控制

发布时间：2018-05-27 04:44

本文选题：无刷双馈发电机 + 无位置传感器控制　；参考：《中国电机工程学报》2016年06期

【摘要】：在变速恒频发电等应用领域,无刷双馈发电系统有着很多优点,如逆变器容量小、系统效率高、可靠性高等。该文从绕线转子无刷双馈发电机(brushless doubly fed generator,BDFG)的基本原理出发,建立了该电机的电磁模型。可以证明控制绕组电流的大小直接影响功率绕组输出电压的大小,对控制绕组的电流应采用电流闭环控制的方法。在忽略励磁电流时,控制绕组电流的大小近似等于功率绕组电流的大小,这可以作为电压外环设计的依据。该文分别研究了有位置传感器和无位置传感器时的独立发电控制算法,可以实现对BDFG发电电压的有效控制。在此基础上研制了一台64 kVA绕线转子无刷双馈发电机控制系统实验装置,进行了大量的实验研究。实验结果证明了所提出的无传感器控制方法的有效性。
[Abstract]:The brushless doubly-fed power generation system has many advantages, such as small inverter capacity, high system efficiency, high reliability and so on. Based on the basic principle of brushless doubly fed generator for winding rotor, the electromagnetic model of the motor is established in this paper. It can be proved that the current of the control winding directly affects the output voltage of the power winding, and the current of the control winding should be controlled by the current closed-loop control method. When the excitation current is ignored, the magnitude of the control winding current is approximately equal to the power winding current, which can be used as the basis for the design of the voltage outer loop. In this paper, the independent generation control algorithms with and without position sensors are studied, which can effectively control the generation voltage of BDFG. On this basis, a 64 kVA winding rotor brushless doubly-fed generator control system is developed, and a lot of experimental research is carried out. The experimental results show the effectiveness of the proposed sensorless control method.
【作者单位】：强电磁工程与新技术国家重点实验室(华中科技大学);
【基金】：国家自然科学基金项目(51377064,51407080)~~
【分类号】：TM61;TM921.5

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