Page 308 - Electric Drives and Electromechanical Systems
P. 308

Index  307


                 Transducers, 31                           Velocity transducers, 108
                 Translators, 222e226                        installation considerations, 130e133
                 Transmission Control Protocol (TCP),          determination of datum position,
                      277e278                                   132e133
                 Transmission system, 31                       electrical interconnection, 132
                 Transport layer, 277                          mechanical installation, 130e132
                 Turning operation, 5e6                      performance of measurement systems,
                 Two-axis d-q model, 188                        108e116
                                                               A/D and D/A conversion errors,
                 U                                              114e115
                 UAV. See Unmanned aerial vehicles (UAV)       digital-system errors, 112e114
                 UGV. See Unmanned ground vehicles             dynamic performance, 115
                      (UGV)                                    errors introduced by process, 115e116
                 Uncontrolled rectifier, 195e196                random errors, 110e111
                 Unconventional motors, 227                    systematic errors, 111e112
                 Undamped natural frequency of oscillation,  rotating velocity transducers, 116e119
                      219e220                              Voice coils, 228e229, 229f
                 Under-actuation approach, 20e21             actuators, 228
                 Undervoltage, 61                          Voltage equation, 172
                 Uniform magnetic field, 138                  for single phase, 236
                 Unipolar switching pattern, 146           Voltage spikes, 61
                 Unmanned aerial vehicles (UAV), 22        Voltage-controlled oscillator (VCO),
                 Unmanned ground vehicles (UGV), 22             123e124
                 Unmanned underwater vehicles (UUV), 22    Voltage-fed inverters, 193e194
                                                           Vulnerability, 65
                 V
                 Variable-reluctance stepper motors, 210,  W
                      235e236                              Walking robots, 23e25
                 Vat polymerisation, 10e11, 11f              kinematic design of three jointed legs, 25f
                 VCO. See Voltage-controlled oscillator    Water jet machining, 9e10
                      (VCO)                                Wheeled systems, 46e49
                 Vector control, 196e204, 197f             Whole arm manipulator, 19
                  implementation, 200e201                  Windage torque (T w ), 42
                    transformations, 201f                  Wound armatures, 230
                  principles, 198e200, 198f
                  sensorless, 203e204, 204f                Y
                  using sensors, 201e203                   Young’s modulus, 227e228
                    relative angles, 202f
                    sensor-based induction-motor control   Z
                      system, 202f                         Zero-order hold (ZOH), 248e249
                 Vector controllers, 187e188, 202e203      Zetransforms, 249
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