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Switched Reluctance Motors and Their Control

TL;DR: This paper presents a meta-modelling framework for computer-aided design of the power-electronic controller and some examples show how this approach can be applied to motor design.
Abstract: Introduction 1. Energy conversion principles 2. Motor design 3. Dynamic operation 4. Computer-aided design 5. The power-electronic controller 6. Control strategies 7. Losses and cooling 8. Applications 9. Example design 10. Tests and measurements References Index
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Journal ArticleDOI
30 Apr 2007
TL;DR: In this article, the relative merits of induction, switched reluctance, and permanent-magnet (PM) brushless machines and drives for application in electric, hybrid, and fuel cell vehicles are reviewed.
Abstract: This paper reviews the relative merits of induction, switched reluctance, and permanent-magnet (PM) brushless machines and drives for application in electric, hybrid, and fuel cell vehicles, with particular emphasis on PM brushless machines. The basic operational characteristics and design requirements, viz. a high torque/power density, high efficiency over a wide operating range, and a high maximum speed capability, as well as the latest developments, are described. Permanent-magnet brushless dc and ac machines and drives are compared in terms of their constant torque and constant power capabilities, and various PM machine topologies and their performance are reviewed. Finally, methods for enhancing the PM excitation torque and reluctance torque components and, thereby, improving the torque and power capability, are described

1,091 citations

01 Jan 2007
TL;DR: This paper reviews the relative merits of induction, switched reluctance, and permanent-magnet brushesless machines and drives for application in electric, hybrid, and fuel cell vehicles, with particular emphasis on PM brushless machines.
Abstract: This paper reviews the relative merits of induction, switched reluctance, and permanent-magnet (PM) brushless machines and drives for application in electric, hybrid, and fuel cellvehicles,withparticularemphasisonPMbrushlessmachines. The basic operational characteristics and design requirements, viz. a high torque/power density, high efficiency over a wide operatingrange,andahighmaximumspeedcapability,aswell as the latest developments, are described. Permanent-magnet brushless dc and ac machines and drives are compared in terms of their constant torque and constant power capabilities, and various PM machine topologies and their performance are reviewed. Finally, methods for enhancing the PM excitation torque and reluctance torque components and, thereby, improv- ing the torque and power capability, are described.

1,090 citations


Cites background from "Switched Reluctance Motors and Thei..."

  • ...conduction by advancing [6] or retarding [24] long-dwell commutation [15], both also incorporating phase advance....

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  • ...The design and operational features of SRMs are well-documented [15], [16], and may be summarized as follows....

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Journal ArticleDOI
12 Oct 1998
TL;DR: In this paper, the authors investigate the capabilities of the switched reluctance motor (SRM) for electric vehicle and hybrid electric vehicle applications, which is carried out in two steps: the first step involves the machine design and the finite-element analysis to obtain the static characteristic of the motor; the second step is used in the development of a nonlinear model to investigate the dynamic performance of the designed motor.
Abstract: Land vehicles need their drivetrain to operate entirely in constant power in order to meet their operational constraints, such as initial acceleration and gradability, with minimum power rating. The internal combustion engine (ICE) is inappropriate for producing this torque-speed profile. Therefore, multiple gear transmission is necessary with the ICE in a vehicle. Some electric machines, if designed and controlled appropriately, are capable of producing an extended constant power range. The purpose of this paper is to investigate the capabilities of the switched reluctance motor (SRM) for electric vehicle and hybrid electric vehicle applications. This investigation is carried out in two steps. The first step involves the machine design and the finite-element analysis to obtain the static characteristic of the motor. In the second step, the finite-element field solutions are used in the development of a nonlinear model to investigate the dynamic performance of the designed motor.

503 citations

Journal ArticleDOI
Iqbal Husain1
TL;DR: A hybrid torque-ripple-minimizing controller that incorporates the attractive features of some of the techniques developed in the past decade is presented along with simulation and experimental results.
Abstract: The torque pulsations in switched reluctance motors (SRMs) are relatively higher compared to sinusoidal machines due to the doubly salient structure of the motor. The magnetization pattern of the individual phases together with the T-i-/spl theta/ characteristics of the motor dictate the amount of torque ripple during operation. Both machine design and electronic control approaches have been used to minimize the torque ripple in SRMs. This paper presents an extensive review of the origin of torque ripple and the approaches adopted over the past decade to minimize the torque ripple. A hybrid torque-ripple-minimizing controller that incorporates the attractive features of some of the techniques developed in the past decade is presented along with simulation and experimental results.

397 citations


Cites background from "Switched Reluctance Motors and Thei..."

  • ...The number of strokes per revolution can be increased with a larger to alleviate the problem of torque dips, but with a penalty in the saliency ratio (which is the ratio between the maximum and minimum unsaturated inductance levels) [1], [2]....

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  • ...Assuming that each phase consists of two stator poles, SRMs with phase numbers less than or equal to three suffer from the problem of torque dips near the commutation region [2]....

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01 Dec 2001
TL;DR: In this paper, the authors present a survey on generator concepts and power electronic concepts for wind turbines aimed as a tool for decision-makers and development people with respect to wind turbine manufactures, utilities, and independent system operators as well as manufactures of generators and power electronics.
Abstract: This report presents a survey on generator concepts and power electronic concepts for wind turbines. The report is aimed as a tool for decision-makers and development people with respect to wind turbine manufactures, utilities, and independent system operators as well as manufactures of generators and power electronics. The survey is focused on the electric development of wind turbines and it yields an overview on: State of the art on generators and power electronics; future concepts and technologies within generators and power electronics; market needs in the shape of requirements to the grid connection, and; consistent system solutions, plus an evaluation of these seen in the prospect of market needs. This survey on of generator and power electronic concepts was carried out in co-operation between Aalborg University and Risoe National Laboratory in the scope of the research programme Electric Design and Control. (au)

371 citations