2.1 Motors use the effect of forces on current-carrying conductors in magnetic fields 2.1.1 The motor effect The motor effect is where a force acts on a current-carrying conductor in a magnetic field. The right hand palm rule is used to find certain properties: fingers point to magnetic field‚ thumb points in DC direction and palm points to direction of the force. 2.1.2 Factors affecting the force acting on the current-carrying conductor Forces are experienced by the electrons in the conductor
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GROUP 4 JULY 26‚ 2013 EE 4101 ENGR. KENNETH F. FAJILAN Reluctance Motor Introduction A reluctance motor is a type of electric motor that induces non-permanent magnetic poles on the ferromagnetic rotor. Torque is generated through the phenomenon of magnetic reluctance. There are various types of reluctance motor: Synchronous reluctance Synchronous reluctance motors have an equal number of stator and rotor poles. The projections on the rotor are arranged to introduce internal flux “barriers“
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built-in camera and silently email the captured image to you. Let’s go and make it! Servo Motors Servo motors are great little components that are often used in radio-controlled cars to control steering and the control surfaces on model aircraft. They come in a variety of sizes for different types of applications‚ and their wide use in models makes them relatively inexpensive. Unlike normal motors‚ they do not rotate continuously; rather‚ you set them to a particular angle using a PWM signal
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Cross Field Theory of Single Phase Induction Motor The cross field theory of single phase induction motors looks at the induction motor from a totally different point of view. This theory is connected with the voltages & currents that the stationary stator magnetic field can induce in the bars of the rotor when the rotor is moving. Consider a single phase induction motor with a rotor which has been brought up to speed by some external method. Such a motor. Voltages are induced in the bars of this
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Chapter (9) Single-Phase Motors Introduction As the name suggests‚ these motors are used on single-phase supply. Singlephase motors are the most familiar of all electric motors because they are extensively used in home appliances‚ shops‚ offices etc. It is true that singlephase motors are less efficient substitute for 3-phase motors but 3-phase power is normally not available except in large commercial and industrial establishments. Since electric power was originally generated and distributed
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Induction Motor Drive K.Vijaya Bhaskar Reddy* ‚ Research Scholar‚ Andhra University‚ waltair‚ A.P‚ India vijayabhaskarareddy.k@bvrit.ac.in‚ G.V. Siva Krishna Rao‚ Professor‚ Dept. of Electrical Engineering‚ Andhra University waltair‚ A.P‚ India‚ gvskrishna_rao@yahoo.com T.S.Surendra ‚Principal‚Dept of Electrical and Electronics Engineering‚BVRIT‚Narsapur‚Medak‚AP‚India‚surendra.ts@gmail.com Abstract- This paper deals with simulation of Space vector modulated inverter fed induction motor drive
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The Advantages and Disadvantages of Electric Cars Introduction to Electric Cars An electric car is a vehicle which is driven by electric engines. The engines use electrical energy which is usually stored in batteries. Electric car is a variation of electric vehicle (EV). EV speaks of any vehicles which are propelled by electric engines. “Electric car” is a general term for high-speed vehicles which are powered by electricity. In the United States‚ low-speed vehicles which are powered by electricity
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Application Report SPRA420A - February 2000 Switched Reluctance Motor Control – Basic Operation and Example Using the TMS320F240 Michael T. DiRenzo Digital Signal Processing Solutions ABSTRACT This report describes the basic operation of switched reluctance motors (SRMs) and demonstrates how a TMS320F240 DSP-based SRM drive from Texas Instruments (TI™) can be used to achieve a wide variety of control objectives. The first part of the report offers a detailed review of the operation
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Servo motor - This is a small motor in a C-band dish feed assembly. This motor selects whether vertical or horizontal polarization is to be received. Servo motor A Servo is a small device that has an output shaft. This shaft can be positioned to specific angular positions by sending the servo a coded signal. As long as the coded signal exists on the input line‚ the servo will maintain the angular position of the shaft. As the coded signal changes‚ the angular position of the shaft changes
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Electrical Machines and Drives for Electric‚ Hybrid‚ and Fuel Cell Vehicles Induction and switched-reluctance machines can provide the needed characteristics‚ but permanent magnet brushless machines offer a higher efficiency and torque density. By Z. Q. Zhu‚ Senior Member IEEE‚ and David Howe 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
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