电机技术
電機技術
전궤기술
ELECTRICAL MACHINERY TECHNOLOGY
2015年
2期
21-26
,共6页
永磁容错电机%双绕组%直接转矩控制开路故障
永磁容錯電機%雙繞組%直接轉矩控製開路故障
영자용착전궤%쌍요조%직접전구공제개로고장
PM fault-tolerant motor%double-windings%direct torque control%open-circuit fault
为了提高电力推进系统的可靠性,提出了双绕组三相永磁容错电机的结构,建立了该电机的解耦控制数学模型并说明电机在有、无故障条件下的直接转矩控制算法.在有一个或两个乃至三个绕组发生开路故障后,通过适当增大无故障绕组的电流,系统仍然能够输出无故障时的电磁转矩额,而且转矩脉动也无明显增加.
為瞭提高電力推進繫統的可靠性,提齣瞭雙繞組三相永磁容錯電機的結構,建立瞭該電機的解耦控製數學模型併說明電機在有、無故障條件下的直接轉矩控製算法.在有一箇或兩箇迺至三箇繞組髮生開路故障後,通過適噹增大無故障繞組的電流,繫統仍然能夠輸齣無故障時的電磁轉矩額,而且轉矩脈動也無明顯增加.
위료제고전력추진계통적가고성,제출료쌍요조삼상영자용착전궤적결구,건립료해전궤적해우공제수학모형병설명전궤재유、무고장조건하적직접전구공제산법.재유일개혹량개내지삼개요조발생개로고장후,통과괄당증대무고장요조적전류,계통잉연능구수출무고장시적전자전구액,이차전구맥동야무명현증가.
In order to improve the reliability of the electric propulsion system, the fault-tolerant construction of the PM motor with double-windings was proposed. The de-coupling mathematic models of this motor was established while algorithms of direct torque control of this motor driv-ing under both healthy and faulty condition were described. In case that the open-circuit fault occurring in one, two or even three-windings, the motor was still able to output the same torque as if under the healthy operation while the torque ripple was not increased obviously.
