无刷双馈风力发电机的无速度传感器矢量控制的仿真研究  

SIMULATION STUDY ON SPEED SENSORLESS VECTOR CONTROL OF BRUSHLESS DOUBLY-FED WIND POWER GENERATOR

作　　者：朱云国[1,2] 张兴[1] 谢震[1] 杨淑英[1] 

机构地区：[1]合肥工业大学电气与自动化工程学院,合肥230009 [2]铜陵学院电气工程系,铜陵244000

出　　处：《太阳能学报》2013年第3期496-502,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51077034)

摘　　要：鉴于无刷双馈发电机(BDFG)的矢量控制中必须获得转子的速度和位置信息,而安装速度传感器会给控制稳定性和精度带来不良影响,首次提出在BDFG双同步速数学模型下基于定子功率侧磁链观测的模型参考自适应转速辨识控制策略。克服了传统磁链观测采用静止坐标系模型带来的复杂运算和建立参考模型时存在积分的不足。在小信号模型下对设计方案进行分析,且通过在Matlab/Simulink环境下仿真研究表明,可实现在静态和动态情况下的速度精确观测、有功、无功的解耦控制。理论和仿真验证了控制方案的有效性和可行性。The Brushless Doubly-Fed Generator （BDFG） is proposed to have a bright prospect as a variable-speed constant-frequency wind generator. In view of vector control in the BDFG must receive the information of rotor speed and position, but installed speed sensor will bring bad influence on control stability and precision, speed sensor-less vector control strategy for BDFG double synchronous reference frame model based on model reference adaptive speed identification theory by observing of power winding flux was presented. The flaw of the traditional flux observing base on two-axis static coordinate mathematical model include complicated calculation and existing integral in reference model is overcome. The design scheme was analyzed in the small signal model and the simulation results in Matlab/Simulink environment verified that this system can realize speed precise estimation in stationary and dynamical circumstances and the independent control for active power and reactive power of BDFG. Theory and simulation verified the feasibility and effectiveness of the control scheme.

关 键 词：无刷双馈发电机 矢量控制 无速度传感器 模型参考自适应系统 变速恒频风力发电 小信号模型 

分 类 号：TM301[电气工程—电机]