Results 251 to 260 of about 1,643,250 (302)

Field Oriented Control of Synchronous Machines

IETE Journal of Research, 1991
Although field orientation in induction machines is only 20 years old, the corresponding concept in synchronous machines dates back almost 60 years to the days of the thyratron tube. After a brief historical review, the basic theory of synchronous machine field orientation is outlined.
D W Novotny, P L Jansen
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Sensorless field oriented control using common mode currents

Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129), 2002
A simple sensorless field oriented control technique of an induction motor drive is presented, that estimates the angular frequency of the main flux from common mode currents. The proposed technique is effective at any load level and any speed, ranging from zero to rated value and beyond, in the flux weakening region.
CONSOLI A, SCARCELLA, Giuseppe, TUTINO G, TESTA A.   +3 more
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Slip frequency detection for indirect field oriented control drives

Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248), 2002
The paper presents a new technique to detect the slip angular frequency in induction motor drives based on indirect field oriented control. According to the proposed technique, the slip frequency is calculated by processing the effects exerted by an additional high frequency signal on the zero sequence stator voltage.
CONSOLI A, SCARCELLA, Giuseppe, TESTA A.
openaire   +5 more sources

Induction Motor Control using Modified Indirect Field Oriented Control

2018 8th IEEE India International Conference on Power Electronics (IICPE), 2018
This paper proposes the speed control of induction motor using modified indirect field oriented control (MIFOC). MIFOC scheme is based on the control of active and reactive power to regulate desired speed and torque of induction motor. The flux and torque estimation is not required in proposed scheme which reduces the complexity and ripples as compared
Bipin Kumar Nishad, Rahul Sharma
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A neural network controller for indirect field orientation control

IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting, 2002
This paper presents the design of a neural network controller for the stator current command in an indirect field oriented system. A particular three layer neural network structure is studied in some detail. This neural network controller has two outputs, stationary frame q and d axis current commands i/sub qs//sup s/ and i/sub ds//sup s/. The input to
M. Mohamadian, E.P. Nowicki, J.C. Salmon
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Fuzzy supervisory control of field oriented controlled AC drives

Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002
The problem of setting an optimum flux reference for indirect vector controlled induction motors is addressed. The flux reference is generated using a fuzzy logic supervisor (FLS) which minimizes the power input to the motor in steady-state speed operations. The FLS is based on a simple search method.
H.A. Abdel Fattah, M.M. Ismae, A. Bahgat
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Variable speed field-oriented controlled induction generator

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242), 2002
In this work, a new induction generator system (IG), to work with variable speed and load, is proposed. The objective is to make it work as a stand alone (not grid connected) generator to produce constant voltage and variable frequency AC current. The IG is based on a three-phase induction machine (IM) exited, simultaneously, by a capacitor bank and a ...
R. Leidhold, G. Garcia
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Parameter sensitivity of indirect universal field oriented controllers

PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference, 1994
The universal field-oriented (UFO) controller was developed to decouple flux and torque in an arbitrary synchronous flux reference frame, realizing a high degree of generality which makes the UFO controller compatible with all existing field-oriented controllers, including indirect and direct field orientation.
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Current measurement of digital field oriented control

IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting, 1996
This paper studies current measurement issues of all digital field oriented control of AC motors. The paper focuses on the effect of an antialiasing filter and also on the sampling of the fundamental components of the motor current. The antialiasing filter, which suppresses the high frequency component of the motor current, introduces cross coupling ...
null Seung-Ho Song, null Jong-Woo Choi, Seung-Ki Sul   +2 more
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Field-oriented control of saturated induction machines

IEEE Transactions on Energy Conversion, 1990
A nonlinear, field-oriented model is described for saturated induction machines. The model is an extended version of the rotor-flux-oriented dynamic model developed by W. Leonhard (1985), which is valid under linear magnetic conditions and is used in a wide range of applications. The effects of main flux saturation are discussed.
P. Vas, M. Alakula
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