中国电机工程学报2017，Vol.37Issue(17)：5171-5180,10.DOI:10.13334/j.0258-8013.pcsee.162050
基于模型参考自适应的无刷双馈电机独立发电系统转速辨识方法
Speed Estimation Method for Brushless Doubly-fed Machine Stand-alone Generation System Based on Model Reference Adaptivity
摘要
Abstract
Stand-alone generation system based on brushless doubly-fed machine (BDFM) can be used in remote areas for individual power supply or ship shaft generation.However,the speed encoder in the system partly weakens the benefits introduced by the brushless structure.This problem can be solved by introducing speed estimation technology,which gets real-time speed information through estimation algorithm.In this paper,the model reference adaptive concept was introduced into the BDFM stand-alone generation system,and an improved model reference adaptive system (MRAS)was structured for rotor speed estimation.The reference frame in the proposed MRAS was aligned with control winding (CW)current vector of the BDFM,the q-axis CW current component (constant zero) was selected as the reference model,and the q-axis CW current estimation model with rotor speed as variable was treated as the adjustable model.Such a MRAS not only simplifies the calculations of the reference and adjustable models,but also turns the operation of vector crossmultiplication between the reference model and the adjustable model into the operation of scalar subtraction.In addition,the proposed MRAS is generality and flexibility because it is based on the measurable voltages and currents,and thus is adaptable to different control systems.关键词
转速辨识/无刷双馈电机/独立发电系统/模型参考自适应Key words
speed estimation/brushless doubly-fed machine (BDFM)/stand-alone generation system/model reference adaptive system (MRAS)分类
信息技术与安全科学引用本文复制引用
马骁,陈宇,苏婧媛,康勇..基于模型参考自适应的无刷双馈电机独立发电系统转速辨识方法[J].中国电机工程学报,2017,37(17):5171-5180,10.基金项目
台达环境与教育基金会电力电子科教发展计划(DREM2015001).Power Electronics Science and Education Development Program of Delta Environmental & Educational Foundation (DREM2015001). （DREM2015001）
