航空无刷双馈变速恒频发电系统的建模与控制策略研究  

Modeling and Research on Control Strategy of Brushless Doubly-Fed VSCF Aircraft Generator System

作　　者：薛梦娇[1] 李玉忍[1] 梁波[1] 

机构地区：[1]西北工业大学,陕西西安710129

出　　处：《微特电机》2013年第5期54-58,共5页Small & Special Electrical Machines

摘　　要：传统飞机发电系统存在恒速传动装置结构复杂、变频器容量大、转换效率低等缺点。提出了飞机无刷双馈变速恒频发电系统。为实现发电机在转速变化的情况下得到恒压恒频交流电,论文通过对级联式无刷双馈发电机(CBDFG)的结构组成与工作原理的分析,建立了飞机发电系统数学模型。为进一步研究CBDFG的变速恒频控制策略,引入了磁链矢量定向控制(FOC)方法,选用定子同步速M-T坐标系搭建数学模型,最终得到基于定子磁链定向的CBDFG控制策略。运用MATLAB/Simulink仿真工具构建了系统的仿真模型,并进行了变速运行下的仿真,仿真结果与理论分析相一致,证明了该控制策略的可行性。The traditional aircraft power system has some shortcomings, such as the complex structure of constant speed driver（CSD） , huge capacity of converter,low efficiency of energy conversion and so on. In order to solve the above problems,the aircraft brushless doubly-fed VSCF power system was put forward. In order to make the generator obtained con- stant voltage constant frequency（CVCF） AC power in different speed, based on the analysis of structure and the working principle of cascading brushless doubly-fed generator（ CBDFG）, the mathematical model of the power system was established. For further research VSCF control strategy of CBDFG, the flux linkage vector orientation control （FOC） method was introducted,the mathematics model under CBDFG stator synchronous speed MT coordinate was established, and CBDFG control strategy was deduced based on magnetic chain orientation control thought. The system simulation model and the vari- able speed operation simulation were made by MATLAB/Simulink. The simulation results verify the correctness of the con- trol theory.

关 键 词：级联式无刷双馈发电机 飞机发电系统 变速恒频 独立运行 

分 类 号：TM34[电气工程—电机]