Power Semiconductor Controlled DrivesA study of power semiconductor controlled drives that contain dc, induction and synchronous motors. Discusses the dynamics of motor and load systems; open and closed-loop drives; and thyristor, power transistor, and GTO converters. Also reviews arc drives, brushless and commutatorless dc drives, and rectifier controlled dc drives. Annotation copyrighted by Book News, Inc., Portland, OR |
Contents
DC MOTORS 355 | 35 |
CHAPTER 7 | 59 |
RECTIFIER CONTROL OF DC MOTORS | 65 |
Copyright | |
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3-phase angle applications armature current base speed Calculate characteristics chopper circuit commutation conduction connected constant continuous converter current control curves dc motor decrease described diode direction drive employed energy equal equation example field filter firing angle flow flux frequency fundamental given gives harmonic Hence higher increase induction induction motor interval inverter limit load load torque loop loss machine magnet maximum method mode modulation motor motor speed negative obtained operation output voltage phase positive power factor produced pulses quadrant rated rated torque ratio rectifier reduced reference regenerative braking resistance respectively reverse ripple rotor scheme separately excited shown in figure signal slip speed speed control speed-torque stator Substituting supply switch synchronous motor T₁ terminal voltage thyristor tion torque turned V₁ variable waveform winding zero