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1972-10-24 |
Gen Electric |
Co-ordinated voltage control for induction servomotors
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1972-01-06 |
1973-11-27 |
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Speed controls for electric motors
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1972-06-22 |
1974-01-01 |
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Control system for a reluctance type motor
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Gen Electric |
Method and control system for improved stability of an induction motor via independent voltage, synchronous frequency, and slip frequency control at an operating point
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1977-06-07 |
Siemens Aktiengesellschaft |
Method and apparatus for slow speed operation of an inverter controlled rotating field machine
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Method and apparatus for automatic IR compensation
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Westinghouse Electric Corporation |
Method and circuit for the derivation of an analog slip frequency signal of an induction motor in a tachometerless motor drive
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Accurate motor slip control system with speed rate limited
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1977-03-08 |
General Electric Company |
Apparatus for regulating magnetic flux in an AC motor
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1975-04-14 |
1977-05-10 |
General Electric Company |
Torque regulating induction motor system
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1975-08-19 |
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Alternating current motor control method and system
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Method and apparatus for controlling variable speed, controlled current induction motor drive systems
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1977-04-19 |
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Controlled current induction motor drive
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Constant torque induction motor drive system
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1976-06-22 |
1978-03-07 |
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Control system for regulating the torque and speed of an electric motor
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1976-06-22 |
1978-06-06 |
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Control system for regulating the speed of an electric motor
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1976-06-22 |
1978-03-07 |
Harnischfeger Corporation |
Control system for regulating the torque and speed of an electric motor including static frequency detector for speed detection and regulation
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1979-01-18 |
Siemens Ag, 1000 Berlin Und 8000 Muenchen |
Schaltungsanordnung und Verfahren zur Bildung einer elektrischen Größe, die einer Flußkomponente in einer Drehfeldmaschine proportional ist
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1977-01-31 |
1978-08-21 |
Mitsubishi Electric Corp |
Ac current control system
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1977-04-09 |
1981-07-16 |
Carl Schenck Ag, 6100 Darmstadt |
Verfahren zur schnellen Veränderung des Bremsmomentes einer Wirbelstrombremse und Vorrichtung zur Durchführung des Verfahrens
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1977-05-06 |
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1977-05-06 |
1982-10-31 |
Energoinvest Oour Inst |
Device for controllig asynchronous motors fed with a frequency transverter
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1977-07-21 |
1978-09-05 |
General Electric Company |
Measurement of pulsating torque in a current source inverter motor drive
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1977-07-21 |
1979-01-30 |
General Electric Company |
Feedback control for reduction of cogging torque in controlled current AC motor drives
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1977-09-28 |
1982-03-25 |
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Verfahren und Schaltungsanordnung zum Bestimmen der Ummagnetisierungsarbeit des Läufers eines Hysteresemotors
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1977-12-23 |
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1978-02-07 |
1979-06-19 |
Tokyo Shibaura Denki Kabushiki Kaisha |
Control system of alternating current motors
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1978-05-10 |
1979-11-17 |
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Field weakening control system for induction machine
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Gain normalization technique for controlled current induction motor system
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1979-02-26 |
1981-01-13 |
General Electric Company |
Method and apparatus for generating an air gap flux signal for an AC machine from AC line voltage and current values
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1979-03-15 |
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1979-04-24 |
1981-07-21 |
General Electric Company |
Apparatus and method for providing a signal proportional to flux in an AC motor for control of motor drive current
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1979-08-03 |
1981-09-15 |
General Electric Company |
Closed loop, microcomputer controlled pulse width modulated inverter-induction machine drive system
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1979-12-17 |
1983-02-08 |
General Electric Company |
Motor control system
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1980-09-11 |
1982-04-15 |
Siemens AG, 1000 Berlin und 8000 München |
Vorrichtung zum feldorientierten betrieb einer umrichtergespeisten asynchronmaschine
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1981-03-28 |
1982-10-07 |
Brown, Boveri & Cie Ag, 6800 Mannheim |
Verfahren und vorrichtung zum erfassen des winkels zwischen dem luftspaltflussvektor und dem staenderstromvektor einer von einem stromzwischenkreis-umrichter gespeisten asynchronmaschine
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1981-09-28 |
1983-04-07 |
Siemens AG, 1000 Berlin und 8000 München |
Verfahren zur nachbildung des maschinenflusses einer drehfeldmaschine und schaltungsanordnung zur durchfuehrung des verfahrens
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1982-10-04 |
1984-04-11 |
Hitachi Ltd |
誘導電動機の制御方法
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1984-05-18 |
1985-12-05 |
Siemens AG, 1000 Berlin und 8000 München |
Verfahren und vorrichtung zum stabilisieren der ortskurve eines durch integration gebildeten vektors
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1987-08-08 |
1995-11-15 |
三菱電機株式会社 |
誘導電動機制御装置
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1993-12-17 |
Pluritec Italia |
Metodo e dispositivo di controllo della profondita' di lavorazione per una macchina utensile a controllo numerico
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1992-09-01 |
General Electric Company |
High speed flux feedback for tuning a universal field oriented controller capable of operating in direct and indirect field orientation modes
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1992-09-04 |
1994-12-08 |
Friedhelm Prof Dr Ing Milde |
Meßverfahren zur Erfassung des Drehmoments von Asynchronmotoren mit elektrischen Meßgrößen
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1996-05-24 |
1997-11-27 |
Skf Gmbh |
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Mk-Regler Gmbh |
Verfahren und vorrichtung zum betreiben eines asynchronmotors mit gesteigerter effizienz
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西安航空动力控制科技有限公司 |
三相交流测速电机的无延时采样电路
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