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Showing 1 to 15 of 15 for “"Reluctance motors"”.
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Control of Switched Reluctance Motors Considering Mutual Inductance
… to improve the performance of the Switched Reluctance Motor (SRM) drive. By exciting two adjacent phases instead of single phase, the changing rate and the magnitude of the phase currents are much reduced. Therefore the existing problems caused by the single-phase excitation such as large …
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Origin and reduction of acoustic noise in variable-reluctance motors
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.
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Performance limits of linear variable reluctance motors in controlled linear motion applications
… technology employed is the linear variable reluctance motor. Mathematical motor models and simulation programs have been developed to perform several tasks necessary for demonstrating improved actuator performance: (i) optimal commutation under force ripple constraints has been computed to …
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Modeling and Validation of Rolling Rotor Switched Reluctance Motors for Automotive Applications
… require robust and low cost electric motors for the reason of their mass production and operation in different environments. Permanent magnet motors have been used in automotive applications for their high power density when compared to other existing types of motors. Recent years, the …
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An analysis of noise reduction in variable reluctance motors using pulse position randomization
Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1994, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1994.
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Creep Behavior Of Thin Laminates Of Iron-Cobalt Alloys For Use In Switched Reluctance Motors And Generators
The United States Air Force is in the process of developing magnetic bearings as well as an aircraft Integrated Power Unit and an Internal Starter/Generator for main propulsion engines. These developments are the driving force behind a new emphasis on high temperature, high strength magnetic …
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Analysis and design of a novel controller architecture and design methodology for speed control of switched reluctance motors
… suitable for low cost, low performance switched reluctance motor drives. By utilizing inexpensive components in a simple, compact architecture, a low cost controller is developed which achieves a performance level similar to many high performance controllers. A speed control design methodology is …
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Design of Switched Reluctance Motors and Development of a Universal Controller for Switched Reluctance and Permanent Magnet Brushless DC Motor Drives
Switched Reluctance Machines (SRMs) are receiving significant attention from industries in the last decade. They are extremely inexpensive, reliable and weigh less than other machines of comparable power outputs. Although the design principles of the machine are available as a concatenation of many …
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Design of a PC based Data Acquistion System for a Switched Reluctance Motor
The Switched Reluctance Motors(SRM) have gained considerable attention in the variable speed drive market mainly due to the simple construction of the motor and the possibility of developing low cost converters and controllers. As these machines are under development, a considerable amount of …
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Non-rare-earth permanent magnet synchronous reluctance machine for compressor application
… permanent magnet assisted synchronous reluctance motors have been studied in depth. In this thesis, analytical models of permanent magnet assisted synchronous reluctance machines are discussed. Based on the analytical models, design variables are selected such that, while meeting the …
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Development of control algorithm for a new 12s-6p single phase field excited flux switching motor
… (FSM) fall into a special category of switch reluctance motors (SRM). One of the key features of FSM is its rotor structure. Generally, it is free from any magnet and winding. Thus, allowing the motor to attain considerably higher speed and more stability then conventional AC motor. However, …
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Design and Comparison of Induction Motor and Synchronous Reluctance Motor for Variable Speed Applications: Design Aided by Differential Evolution and Finite Element Analysis
… the possibility of counting on Synchronous Reluctance Motors (SRM) in applications where variations of speed are required. Evidently, for many years the Induction Motors (IM) have successfully supplied this demand, and they have become in undeniable leaders in the field. The strategy …
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Design and Implementation of a Novel Control System for Four Quadrant Operation of a Two-Phase Switched Reluctance Motor
In the emergence of switched reluctance motors to the commercial market, two-phase motors have received relatively little attention. Higher power and industrial applications have focused on the use of three and occasionally four phase machines, while low cost applications demanding only modest …
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Variable reluctance motor airgap geometry for maximizing force production: a data analysis approach using finite element generated characteristics
Recent widespread utilization of variable reluctance (VR) motors and growing computational capability motivate further research to improve VR motor modeling and control. The primary objective of this study is to identify airgap geometries that maximize force density and minimize force ripple for …
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Linear iron-core permanent magnet motor with high force and low acoustic noise
… of electric machines including variable-reluctance motors, induction machines, and permanent magnet synchronous motors. The severity of this problem depends on the types of motors and their applications. One exemplary case where the vibro-acoustic noise becomes especially detrimental is …