电机与控制学报
電機與控製學報
전궤여공제학보
Electric Machines and Control
2015年
11期
25-31
,共7页
尚敬%年晓红%刘可安%南永辉
尚敬%年曉紅%劉可安%南永輝
상경%년효홍%류가안%남영휘
电励磁同步电机%定子磁链%负载转矩观测%模糊控制%矢量控制
電勵磁同步電機%定子磁鏈%負載轉矩觀測%模糊控製%矢量控製
전려자동보전궤%정자자련%부재전구관측%모호공제%시량공제
electrically excited synchronous motor%stator flux%load torque observer%fuzzy control%vector control
针对大功率交直交冶金轧机主传动系统对电励磁同步电机控制的高性能要求,以定子磁链定向矢量控制为基础,提出了一种混合型气隙磁链观测方法,其低速段采用电流模型,中高速提出基于速度补偿的新型改进型电压模型,可在全速度范围内很好的观测出电机定子磁链。提出了一种基于降阶状态观测器的模糊自适应负载转矩观测方法,利用观测到的负载转矩电流进行前馈补偿来改善动态性能。仿真和实验结果表明所提出的控制策略的有效性。
針對大功率交直交冶金軋機主傳動繫統對電勵磁同步電機控製的高性能要求,以定子磁鏈定嚮矢量控製為基礎,提齣瞭一種混閤型氣隙磁鏈觀測方法,其低速段採用電流模型,中高速提齣基于速度補償的新型改進型電壓模型,可在全速度範圍內很好的觀測齣電機定子磁鏈。提齣瞭一種基于降階狀態觀測器的模糊自適應負載轉矩觀測方法,利用觀測到的負載轉矩電流進行前饋補償來改善動態性能。倣真和實驗結果錶明所提齣的控製策略的有效性。
침대대공솔교직교야금알궤주전동계통대전려자동보전궤공제적고성능요구,이정자자련정향시량공제위기출,제출료일충혼합형기극자련관측방법,기저속단채용전류모형,중고속제출기우속도보상적신형개진형전압모형,가재전속도범위내흔호적관측출전궤정자자련。제출료일충기우강계상태관측기적모호자괄응부재전구관측방법,이용관측도적부재전구전류진행전궤보상래개선동태성능。방진화실험결과표명소제출적공제책략적유효성。
The stator flux oriented vector control strategy was studied for electrically excited synchronous motor to satisfy the high performance of rolling mill main drive. A mixed stator flux observer was used to satisfy the full speed range. The mix observer includes a current-model which is used at low speed and a novel voltage-model which is used at high speed based on speed compensated. To improve the speed dy-namitic performance, the low order load observer for feed-forward torque current control was proposed in which fuzzy adaptive control was adopted. Simulation and experiment results demonstrate the strategy is effective.