Optimal Efficiency Control of an Induction Motor Drive

Kirschen,; Novotny,; Lipo,

doi:10.1109/mper.1987.5527365

Cited by 18 publications

(29 citation statements)

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“…The concept of efficient control has been implemented using different strategies [13], and can be classified into search control (SC) [14][15][16][17][18][19][20] or loss model control methods (LMC) [7,[21][22][23][24][25][26]. Regardless of the approach, the strategy to improve the efficiency is typically based on decreasing the magnetic flux in the machine at light loads to reduce the losses at the expense of a slower dynamic response.…”

mentioning

confidence: 99%

Impact of Postfault Flux Adaptation on Six-Phase Induction Motor Drives With Parallel Converters

González-Prieto

Durán

Barrero

et al. 2017

IEEE Trans. Power Electron.

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Abstract-The redundancy of multiphase drives provides an inherent fault-tolerant capability that is appreciated in applications with a complicated corrective maintenance or safety-critical requirements. Fault restrictions however force the system to be reconfigured to operate in a smooth and efficient manner. Previous works have been focused on the optimization of current waveforms to generate an undisturbed operation but still maintaining the pre-fault rated flux settings. This work shows that efficient controllers can improve the post-fault performance in six-phase induction machines supplied by parallelconnected converters if offline optimization is used to obtain a variable reference flux. Theoretical and experimental results confirm that the proposed flux adaptation method provides higher torque/power capability, lower degree of imbalance in the current sharing between windings and efficiency improvement.

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mentioning

confidence: 99%

Impact of Postfault Flux Adaptation on Six-Phase Induction Motor Drives With Parallel Converters

González-Prieto

Durán

Barrero

et al. 2017

IEEE Trans. Power Electron.

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“…Authors of the above paper concluded that rated flux operation essential during transient (starting) to maintain good dynamics. The detailed study on efficiency optimization of scalar controlled IM is available in [28]. The procedure described in [29] is based on optimal slip control of current source inverter fed induction motor.…”

Section: (I) Conventional Controllersmentioning

confidence: 99%

Energy Efficient Control of Three-Phase Induction Motor - A Review

Raj¹,

Srivastava²,

Agarwal³

2009

IJCEE

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Abstract-Due to robustness, reliability, low price and maintenance free, induction motors (IMs) used in most of the industrial applications. The influence of these motors (in terms of energy consumption) in energy intensive industries is significant in total input cost. This paper presents a review of the developments in the field of efficiency optimization of three-phase induction motor through optimal control and design techniques. Optimal control covers both the broad approaches namely, loss model control (LMC) and search control (SC). Optimal design covers the design modifications of materials and construction in order to optimize efficiency of the motor. The use of Artificial Intelligence (AI) techniques such as artificial neural network (ANN), fuzzy logic, expert systems and nature inspired algorithms (NIA), Genetic algorithm and differential evolution in optimization are also included in this paper. Experimental and simulation examples on efficiency optimization are illustrated.

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“…This demands, however, that load torque and speed are known in advance. It is true in a limited number of [80].…”

Section: Field Oriented Vector Controlled Drivesmentioning

confidence: 99%

“…Kirschen et al [79] were in 1985 the first to do simulations. Experimental results were reported in 1987 [80]. They implemented the search control in connection with a rotor-flux oriented vector control scheme, and minimized the drive input power, keeping the motor output constant by controlling the speed and assuming the load characteristic to be constant [103, p. 388], see Figure 2.12.…”

Section: Traditional Search Controlmentioning

confidence: 99%

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Energy Optimal Control of Induction Motor Drives

Abrahamsen¹

2002

Control in Power Electronics

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PrefaceThis thesis is submitted to the Faculty of Engineering & Science at Aalborg University as part of the requirements for the degree of Ph.D. The research in energy optimal control of induction motors started for my part in August 1995. The first two years and three months with a research project financed by The Danish Energy Agency, entitled "Energy Optimal Control Strategies for Electro Motors -low-cost sensorless PWM-VSI based induction motor control", journal no. 1253/95-0001. The project was followed by Design Engineer Erik Just Petersen from ABB Motors A/S, and by Manager of Control Engineering Paul Thøgersen from Danfoss Drives A/S. The results from this project, which focused on small drives, were in February 1998 published in a separate report. After that it was decided to extend the research with one year to investigate medium-size drives and permanent magnet motor drives. The last year was financed by the Danfoss Professor Program at Aalborg University and followed by Manager of Control Engineering Paul Thøgersen, Danfoss Drives A/S. The two research projects were supervised by Professor Frede Blåbjerg and Associate Professor John K. Pedersen, both from Institute of Energy Technology at Aalborg University.The main purpose with a project like this it to promote technologies with a more efficient use of electrical energy. It is my hope that this thesis can be to help and inspiration for engineers who work with research and development of electrical drives, and to people who study efficient use of electrical energy in general.Apart from this thesis and the report mentioned above, results from the project have been published in a number of papers and articles listed in the end of the thesis.I would like to thank the Danfoss Professor Program for the financial support that enabled me to submit this thesis, and my supervisors Paul Thøgersen, Frede Blåbjerg and John K. Pedersen for help and good advises. I also want to thank Trine Lendrup Jacobsen for helping with the time-consuming efficiency measurements, and Pawe Grabowski for his assistance with programming the motor drive. I am thankful to Jens Birk, Danfoss Drives A/S, for his help during my stays at Danfoss Drives, and to Jukka Salonen, ABB Motors in Finland, for providing me with motor data. February 2000, Flemming Abrahamsen SummaryThis thesis deals with energy optimal control of small and medium-size variable speed induction motor drives for especially Heating, Ventilation and Air-Condition (HVAC) applications. Optimized efficiency is achieved by adapting the magnetization level in the motor to the load, and the basic purpose is demonstrate how this can be done for low-cost PWM-VSI drives without bringing the robustness of the drive below an acceptable level.Four drives are investigated with respect to energy optimal control: 2.2 kW standard and high-efficiency motor drives, 22 kW and 90 kW standard motor drives. The method has been to make extensive efficiency measurements within the specified operating area with optimized efficiency and with ...

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Optimal Efficiency Control of an Induction Motor Drive

Cited by 18 publications

References 0 publications

Impact of Postfault Flux Adaptation on Six-Phase Induction Motor Drives With Parallel Converters

Impact of Postfault Flux Adaptation on Six-Phase Induction Motor Drives With Parallel Converters

Energy Efficient Control of Three-Phase Induction Motor - A Review

Energy Optimal Control of Induction Motor Drives

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