توصيفگر ها :
ايزولاسيون , لوپ - شيپينگ , قضيه بهره كوچك , افزونگي , سنكرون , مغناطيس دائم , تبديل فوريه،موجك , رگولاريتي , نويززدايي , سطح آستانه , فيلتركالمن
چكيده انگليسي :
c AbstractPennanent magnet synchronous motors are better than conventional electric motors withrespect to efficiency volume weight time of acceleration ease of speed control andtorque By the use of new control methods like vector control they can be used fordifferent industrial emands like applications that need speed control or torque control oruse for servo drives Electric drive systems like other systems may fail and reduce systemperfonnance To avoid such a condition fault detection methods and drive systemsreconfiguration at fault time are widely used everyday In this researchin order to achievedesigning a fault tolerant control system for a permanent magnet synchronous motor drive first a robustcontroller basedon the Hroloop shapingmethodis designedand then inverter faultdetection systemis designed by the use of advanced signal processingmethods like wavelettransformation Faulted systemis reconfiguredby aid of four switch three phase inverter Speedsensor fault is also analyzedin this thesis This is done by designinga speedobserverbasedon theKalman filter theory and after detectingthe speedsensorfault an estimatedspeed value is used in f Jil1 Lf W I equations I L
