Journal ArticleDOI
Fast efficiency optimization techniques for the indirect vector-controlled induction motor drives
Chandan Chakraborty,Yoichi Hori +1 more
TLDR
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.Abstract:
This paper presents two simple and very useful techniques for the efficiency optimization of the indirect vector-controlled induction motor drives. In the synchronously rotating reference frame the flux-producing current is controlled until the power at the DC link is minimum. Of the two techniques, the first method controls the flux-producing current in a regular and smooth manner. The second technique combines loss model and search approaches in a unique way to propose a hybrid method, where the first estimate is from the loss model approach and the subsequent adjustment of the flux is through the search technique. Both the algorithms are simple, easily realizable, and offer fast convergence. Also, smooth control of the flux offers excellent dynamic performance. A comparative assessment shows that the hybrid method is the best, even if an approximate equivalent circuit for the induction motor is used for the analysis and optimization of the losses. The close agreement between the simulation and the experimental results confirms the validity and usefulness of the proposed techniques.read more
Citations
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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
Discrete-Time Ripple Correlation Control for Maximum Power Point Tracking
TL;DR: In this paper, the authors extended the previous analog technique to the digital domain and applied it to the photovoltaic maximum power point tracking problem, which achieved tracking accuracy greater than 98% with an update rate greater than 1 kHz.
Journal ArticleDOI
DC-Link Current Minimization for High-Power Current-Source Motor Drives
TL;DR: In this paper, a loss reduction and DC-link current minimization strategy for a high-power current-source inverter (CSI) fed drive is proposed, which consists of an inverter maximum modulation index control scheme and a flux optimization algorithm.
Journal ArticleDOI
Adaptive Fuzzy Controller for Efficiency Optimization of Induction Motors
TL;DR: A new technique for efficiency optimization of adjustable-speed drives, with an emphasis on vector-controlled induction motor drives, is introduced, which combines two distinct control methods, namely, online search of the optimal operating point and a model-based efficiency control.
Journal ArticleDOI
A Control Scheme With Energy Saving and DC-Link Overvoltage Rejection for Induction Motor Drives of Electric Vehicles
TL;DR: A control scheme for an induction motor that integrates, within a coherent solution, some of the features that are commonly required from an electric vehicle drive, and has the capability to exploit the maximum torque in the whole speed range.
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Fuzzy logic based on-line efficiency optimization control of an indirect vector-controlled induction motor drive
TL;DR: A fuzzy logic based on-line efficiency optimization control of a drive that uses an indirect vector controlled induction motor speed control system in the inner loop adaptively decrements the excitation current on the basis of measured input power such that, for a given load torque and speed, the drive settles down to the minimum input power.
Journal ArticleDOI
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