Journal ArticleDOI
Simple efficiency maximizer for an adjustable frequency induction motor drive
TLDR
In this paper, a new method of efficiency maximization that utilizes sensing of the third-harmonic component of air-gap flux is proposed, which is used to determine the resulting instantaneous position of the fundamental component of the air gap flux and, consequently, the torque and flux-producing components of the stator current.Abstract:
A new method of efficiency maximization that utilizes sensing of the third-harmonic component of air-gap flux is proposed. This signal is used to determine the resulting instantaneous position of the fundamental component of the air gap flux and, consequently, the torque- and flux-producing components of the stator current. In addition, the third harmonic signal is also used to determine the rotor speed. Hence, the output power of the machine can be calculated with only a single sensor wire attached to the neutral point of the machine. The flux-producing component can be readily adjusted to produce the minimum input power for a fixed amount of output power (fixed speed). >read more
Citations
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Journal ArticleDOI
Loss minimization in induction motor adjustable-speed drives
I. Kioskeridis,N. Margaris +1 more
TL;DR: A loss model controller (LMC) for determining the optimal air-gap flux that minimizes the losses in scalar controlled induction motor drives is presented and it is shown that its realization does not require knowledge of the loss model.
Journal ArticleDOI
New Online Loss-Minimization-Based Control of an Induction Motor Drive
TL;DR: In this article, a loss-model-based controller for an induction motor drive is proposed to determine an optimum flux level for the efficiency optimization of the vector-controlled IM drive.
Journal ArticleDOI
Loss minimization in scalar-controlled induction motor drives with search controllers
I. Kioskeridis,N. Margaris +1 more
TL;DR: In this paper, loss minimization in scalar-controlled induction motor drives (IMD) with search controllers (SC) is investigated, and the problems arising when the input power is used as the controlled variable are described.
Journal ArticleDOI
Loss-minimising control scheme for induction motors
S. Lim,Kwanghee Nam +1 more
TL;DR: In this article, a loss model simplification is made with a voltage dependent source and loss resistance, and a complete loss-minimising control algorithm is proposed and its validity is demonstrated by simulation and experimental results.
Journal ArticleDOI
Fast efficiency optimization techniques for the indirect vector-controlled induction motor drives
Chandan Chakraborty,Yoichi Hori +1 more
TL;DR: In this paper, two simple and very useful techniques for the efficiency optimization of the indirect vector-controlled induction motor drives are presented for the synchronously rotating reference frame the flux-producing current is controlled until the power at the DC link is minimum.
References
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Journal ArticleDOI
On-Line Efficiency Optimization of a Variable Frequency Induction Motor Drive
TL;DR: In this article, a simple method for minimizing the global system losses is presented based on the adaptive control of the rotor flux in a field-oriented drive system, which is verified using digital simulation.
Journal ArticleDOI
A Quantitative Analysis of Induction Motor Performance Improvement by SCR Voltage Control
Timothy M. Rowan,Thomas A. Lipo +1 more
TL;DR: In this paper, it was shown that a constant power factor controller results in an operating regime which is substantially poorer than operation at either minimum input power or maximum efficiency, when the motor is driven from a silicon-controlled rectifier (SCR) voltage controller.
Journal ArticleDOI
A direct field oriented controller for induction motor drives using tapped stator windings
TL;DR: In this paper, the authors implemented a direct method of field orientation that requires little knowledge of machine parameters and uses only readily measurable quantities, using tapped stator windings to measure the air-gap flux.