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lect9 - Lecture 9 EE743 Direct Current(DC Machines Part III...

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Lecture 9 - EE743 Lecture 9 - EE743 Direct Current (DC) Machines - Part III Professor: Ali Keyhani Professor: Ali Keyhani
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2 The Field winding is placed on the stator and the current (voltage) is induced in the rotor winding which is referred also as the armature winding. In DC Machines, the mmf mmf produced by the field winding and the mmf mmf produced by the armature winding are at right-angle with respect to each other. The torque is produced from the interaction of these two fields. DC Machines
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3 DC Machines Elementary two-pole DC Machine
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4 DC Machines Elementary machine two-pole machine
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5 DC Machines Commutation of the elementary machine - a
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6 DC Machines Commutation of the elementary machine -b
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7 DC Machines Commutation of the elementary machine -c
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8 DC Machines Commutation of the elementary machine -d
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9 DC Machines Cross section of an Elementary DC Machine
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10 DC Machines Perspective view of an Elementary DC Machine
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11 DC Machines Flux path in the DC Machine
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12 DC Machines A realistic flux density distribution in the air gap
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13 DC Machines An approximate flux-density distribution in the air gap
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DC Machines Commutation and direction of rotation. Motor operation - a
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lect9 - Lecture 9 EE743 Direct Current(DC Machines Part III...

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