Electrical Drives And Controls

Ward Leonard Speed Control System Ward Leonard Speed Control System  Notes
  The system is made up of a driving motor which runs at almost constant speed and powers a dc generator as shown in the diagram. The generator output is fed to a dc motor. By varying the generator field current, its output voltage will change
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Three-Phase Controlled Rectifiers Three-Phase Controlled Rectifiers Notes
  Three-phase controlled rectifiers have a wide range of applications, from small rectifiers to large High Voltage Direct Current (HVDC) transmission systems.
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Speed Control Of DC Speed Control Of DC Notes
  The aim of this investigation is to describe the principle of DC motor speed control using nonlinear combined control (armature voltage and field current). For the armature control mode, the field current is held constant and an adjustable voltage is applied to the armature.
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Single Phase Induction Motor Single Phase Induction Motor Notes
  In this project, the applications of VLSI in motor control is realized with two approaches: DSP and microcontroller. A single phase induction motor adjustable speed drive control is implemented with hardware setup and software program in C code.
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Motor Starter Units Motor Starter Units Notes
  Isolating contacts are compulsory and must be fitted at the head of all circuits (cf. installation standards NF C15-100, IEC 60364-5-53), they are not compulsory but recommended for each motor starter unit. Their role is to insulate circuits
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Circuit Operation Basics Circuit Operation Basics Notes
  This page describes the operation of the three-phase semi-controlled rectifier. When a semi-controlled rectifier is used, the output of the bridge is controlled when it remains positive.
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Circuit Operation Circuit Operation  Notes
  A fully-controlled rectifier circuit contains only controlled-rectifiers, whereas a semi-controlled rectifier circuit is made up of both controlled and uncontrolled rectifiers.
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Drive Motors Drive Motors  Notes
  A Brief Description of Drive Motors are explained in the Notes
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DC to DC Converter DC to DC Converter Notes
  Basic non-isolated DC-DC converter topologies: Buck, Boost, Buck-Boost, Cuk in CCM and DCM mode Non-ideal effects on converter performance,Isolated DC-DC converters, switched-mode power supply
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DC Motor Control Circuits DC Motor Control Circuits Notes
  This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/, or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA. The terms and conditions of this license allow for free copying, distribution, and/or modification of all licensed works by the general public
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DC Drive — Solid DC Drive — Solid Notes
  During the design of new (or upgrades to) motor generator set type DC drives, consider the use of solid state assemblies for control functions.
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DC Choppers DC Choppers Notes
  A dc chopper is a dc-to-dc voltage converter. It is a static switching electrical appliance that in one electrical conversion, changes an input fixed dc voltage to an adjustable dc output voltage without inductive or capacitive intermediate energy storage.
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Construction Of A 3-Phase Induction Motor Construction Of A 3-Phase Induction Motor Notes
  To study the construction of a 3-phase induction motor, To study the different starting methods of 3-phase induction motors To study how to reverse the direction of rotation in a 3-phase induction motor.
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Basics For Practical Operation Motor Starting Basics For Practical Operation Motor Starting Notes
  This technical manual for ‘Motor Starting’ is another publication on the subject of ‘Motor Management’. With these published fundamentals, of Motor Management, the user will have a growing reference on the performance and operational data required for design and application.
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AC Voltage Regulators AC Voltage Regulators Notes
  AC voltage regulators have a constant voltage ac supply input and incorporate semiconductor switches which vary the rms voltage impressed across the ac load. These regulators fall into the category of naturally commutating converters since their thyristor switches are commutated by the alternating supply. This converter turn-off process is termed line commutation.
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AC Voltage Controller Circuits AC Voltage Controller Circuits  Notes
  AC voltage controllers (ac line voltage controllers) are employed to vary the RMS value of the alternating voltage applied to a load circuit by introducing Thyristors between the load and a constant voltage ac source
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