本文提出了一種轉(zhuǎn)子電流定向的雙饋電機矢量調(diào)速系統(tǒng), 采用轉(zhuǎn)子電流進行速度辯識, 克服了傳統(tǒng)方法中用磁鏈辯識速度在同步速附近存在死區(qū)的問題。文中介紹了該系統(tǒng)的基本原理及組成, 并在最后給出了系統(tǒng)仿真和實驗的結(jié)果。
敘詞　雙饋電機調(diào)速　傳感器　矢量控制
Abstract: In th is paper, a vecto r con t ro l m ethod of ro to r cu rren t o rien ted fo r doub ly fed mo to r is p resen ted. U sually the f lux linkage is u sed to calcu late the speed, w h ich m akes the system have relat ively large“b lind area”at the synch ron izat ion speed. In th is system , the ro to r cu rren t is u sed to so lve the p rob lem above2m en t ioned. The basic p rincip le and st ructu re are in t roduced, and f inally the system sim u lat ion and experim en t resu lt s are p resen ted in the paper.
Key words: Speed2variab le of doub ly fed mo to r　Sen so r　V ecto r con t ro l