armature current
Analysis and Controller Design of a Torsional D C Drive under Resonance Conditions
... The D.C. drive system with an elastic shaft and pulsating load torque, under specific operating conditions, exhibits peculiar performance as large peak in armature current and speed are observed. Such a ...
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Matlab/Simulink Models For Typical Soft Starting Means For A DC Motor
... To overcome the last disadvantage, power electronics circuitry can be introduced. This is possible through the insertion of a chopper circuit [2]. The chopper circuit should be controlled by a hysterisis controller. The ...
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Comparative performance of FE FSM, PM FSM and HE FSM with segmental rotor
... vs. armature current densities Ja, at field current densities Je of 30A/mm 2 of FEFSM, PMFSM and HEFSM with segmental rotor are compared as shown in ...of armature current densities and ...
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The Development Of Semiautomatic Vertical Ladder For Domestic Application
... the armature, and consists of windings similar to those in a wound rotor induction ...the armature. Current flows through the armature windings via carbon brushes and a commutator ...
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Relational Rewards: Creating a Fulfilling Workplace Environment
... Speed of a separately excited DC motor can be controlled by armature voltage control method. In this method of control the field excitation is kept constant at a constant voltage which implies a constant flux. But ...
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Speed Control For Direct Current (DC) Motor With An Approach Of Fuzzy Logic
... shunt-field current of the dc motor to increase speed and to reduce output torque for a given armature ...permissible armature current is approximately constant over the speed ...rated ...
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Modeling and Performance Analysis of Armature Controlled DC Motor
... field current and armature current. For the armature control mode, the field current is held constant and an adjustable voltage is applied to the ...
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Analysis of high torque and power densities outer rotor PMFSM with DC excitation coil for in wheel direct drive
... The term “flux switching” was introduced to explain the fact that the excitation flux linkage switches its polarity by following the motion of the salient pole rotor. For details, the operating principle of the proposed ...
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Stability analysis of a system of DC servo motor with load
... the back em f generated internally in the motor by the angular motion and k 2 is the motor back em f constant. J is the inertia of the motor and load respectively. Here, the motor and the load assumed not lumped together ...
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SPEED CONTROL OF SEPARATELY EXCITED D.C. MOTOR
... while armature controlled is closed loop system. Hence armature controlled dc motor are preferred over field controlled ...the armature current which is not large can be supplied from an ...
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Comparison and Survey of a Double Armature DC Motor with a Regular DC Motor in Terms of Speed and Efficiency
... Nowadays discovery of oil fields, mines and water sub- level resources and also trace of marine discoveries in different sciences and industries like medicine, materials, chemistry, power, mechanics and other military ...
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Fringing in tubular permanent-magnet machines: Part II. Cogging force and its minimization
... iron-cored armature in a tubular permanent-magnet machine has been established, and a technique for minimizing the cogging force has been ...the armature core is relatively small, as with a slotted ...
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Design and simulation by using Smart Power Module (SPM) to increase efficiency in motor drive application
... The terms “energy-saving” and “quiet-running” are becoming very important in the world of variable speed motor drives. Inverter technology is being increasingly accepted and used by a wide range of users in the design of ...
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Performances analysis of 6Slot 14Pole e core hybrid excitation flux switching machine for hybrid electric vehicle
... circuits the magnet flux (iii) Torque density may be significantly less. Therefore, as one of the candidates that can overcome the problems, a new structure of field excitation flux switching motor (HEFSM), with ...
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Design investigation of three phase HEFSM with outer rotor configuration
... in Fig. 2(a) and (b), higher torque will be obtained. Hence, when the rotor starts rotating and moves to the right, the rotor pole will allocate on the next stator tooth. This will cause the magnitude and polarities of ...
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Simulink modelling and simulation for self excited doubly salient retarder system
... excitation current of the excitation winding of retarder power device), and also can determine the self-excitation retarder`s excitation ...excitation current, rotor speed and barking torque can be ...
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Vector Controlled 3Phase Induction Motor Drive using Photovoltaic
... Vector control offers a number of benefits including speed control over a wide range, precise speed regulation, fast dynamic response, and operation above base speed. The vector control algorithm is based on two ...
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Volume 2, Issue 3, March 2013 Page 479
... In metal to carbon relays, the contact pressure was directly proportional to the contact travel – the distance the silver contact travels on the SIG contact. Controlling contact pressure inter-alia determined the contact ...
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Application prospects of threaded joint of armature
... for armature of large diameters used in the vertical ...diameters armature of vertical elements is energy intensive and requires a lot of labor costs of highly skilled ...strengthened armature of ...
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Design Of 1 KW DC Motor
... The armature core are provided with slots prepared of the similar material as the core to which the armature winding prepared with some turns of copper wire scattered consistently over the whole border of ...
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