Results 261 to 270 of about 90,372 (304)
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Orientation Estimation by Error-State Extended Kalman Filter in Quaternion vector space
SICE Annual Conference 2007, 2007This paper presents an error-state extended Kalman filter with data fusion for orientation estimation. The rotation parameterization is described by quaternion representation. A MARG (magnetic, angular rate, gravity) sensor is used for measurement system.
null Mohammad Ahmadi +2 more
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Harmonic and Killing Vector Fields in Compact Orientable Riemannian Spaces with Boundary
The Annals of Mathematics, 1959Publisher Summary This chapter presents the results on harmonic and killing vector fields to the case of Riemannian spaces with boundary. The harmonic tensors on such Riemannian spaces are studied, and the relations between curvature and relative Betti numbers in Riemannian spaces with boundary are discussed.
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A novel space-vector current regulation scheme for a field-oriented-controlled induction motor drive
IEEE Transactions on Industrial Electronics, 1998The system performance of an AC variable-speed drive directly depends on the current regulation. In this paper, a novel space-vector current regulation scheme for a field-oriented controller (FOC) is developed. Motor currents are regulated by generating appropriate inverter output voltage vectors via software-implemented comparators and a switching ...
Yi-Hwa Liu, Chern-Lin Chen, Rong-Jie Tu
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Space Vector Modulation based Field Oriented Control scheme for Brushless DC motors
2011 International Conference on Emerging Trends in Electrical and Computer Technology, 2011This paper focuses on various aspects of Space Vector Modulation based Field Oriented Control of Trapezoidal Permanent Magnet Synchronous Motors. The purpose is to introduce in a concise manner the fundamental theory, main results and practical applications of Field Oriented Control (FOC) for Brushless DC motors. The primary focus is on controlling the
Joseph P John, S. Suresh Kumar, B. Jaya
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Physics in Medicine and Biology, 1995
This note presents the solutions to the problem of orienting N converging vectors with a common origin in space with maximal separation for N = 3,4,...,8. With a specific definition of maximal separation, an algorithm was developed and coded which iteratively converges to the solutions. It has been suggested that these orientations might be appropriate
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This note presents the solutions to the problem of orienting N converging vectors with a common origin in space with maximal separation for N = 3,4,...,8. With a specific definition of maximal separation, an algorithm was developed and coded which iteratively converges to the solutions. It has been suggested that these orientations might be appropriate
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COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2016
Purpose In this paper an adaptive nonlinear control scheme has been proposed for direct torque and flux control of interior permanent magnet synchronous motor (IPMSM) without using mechanical sensor. Design/methodology/approach In this control method the stator ...
Abbas Najjar-Khodabakhsh, Jafar Soltani
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Purpose In this paper an adaptive nonlinear control scheme has been proposed for direct torque and flux control of interior permanent magnet synchronous motor (IPMSM) without using mechanical sensor. Design/methodology/approach In this control method the stator ...
Abbas Najjar-Khodabakhsh, Jafar Soltani
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Two-phase VSI inverter using space vector modulation for field oriented DSM drive
International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion, 2012The paper deals with space vector pulse width modulation (SVPWM) technique for vector controlled of two-phase disk synchronous machine (TPDSM). It is supposed that machine is supplied by VSI three-leg inverter. A reference voltage vector located in the irregular hexagon is realized by adjusting six space vectors and two zero vectors.
S. Kascak +3 more
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Voltage oriented control of three phase PWM rectifier with Bus Clamped Space Vector PWM
2015 International Conference on Power, Instrumentation, Control and Computing (PICC), 2015Pulse Width Modulated (PWM) Rectifiers have gained the popularity during recent years for the ac to dc conversion needs of the industry, customer and power grid sectors. This bidirectional convereter can acts as an ac to dc boost rectifier with near unity power factor at the grid side along with regulated and ripple free dc voltage at the output.
E. M. Suhara, M. Nandakumar
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2009 IEEE Symposium on Industrial Electronics & Applications, 2009
This paper deals with two popular and powerful methods in electrical drive applications. The first one is the field oriented control (FOC) and the other one is space vector modulation (SVM). The proposed FOC-SVM method is incorporated with a predictive current control (PCC) technique.
M. B. B. Sharifian +2 more
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This paper deals with two popular and powerful methods in electrical drive applications. The first one is the field oriented control (FOC) and the other one is space vector modulation (SVM). The proposed FOC-SVM method is incorporated with a predictive current control (PCC) technique.
M. B. B. Sharifian +2 more
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International Journal on Engineering Technology, 2023
For the efficient speed control of three phase Induction motor, the Vector control or Field oriented control (FOC) technique is used for the Voltage source inverter. In implementing FOC the angular position of the rotor flux vector is to be determined. There are two methods (direct and indirect) of vector control for the evaluation of rotor angle.
Sabin Kasula +3 more
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For the efficient speed control of three phase Induction motor, the Vector control or Field oriented control (FOC) technique is used for the Voltage source inverter. In implementing FOC the angular position of the rotor flux vector is to be determined. There are two methods (direct and indirect) of vector control for the evaluation of rotor angle.
Sabin Kasula +3 more
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