Cost of Electrical Energy: The total Cost of Electrical Energy generated can be divided into three parts, namely ; Fixed cost ; Semi-fixed cost ; Running or operating cost. (i) Fixed cost: It is the cost…
Introduction to Economics of Power Generation: A power station is required to deliver power to a large number of consumers to meet their requirements. While designing and building a power station, efforts should be made…
Stepper Motor Classification: The Stepper Motor Classification based on the construction and principle of operation. These are Variable reluctance motors Permanent magnet motors Hybrid stepping motors Claw pole motors with permanent magnets The stepper motors…
Features of Stepper Motor: The Features of Stepper Motor are small step angle high positioning accuracy high torque to inertia ratio stepping rate and accuracy Small Step Angle: The angle by which the rotor of…
Stepper Motor Applications: The microprocessors are employed for the control of stepper motors which are generally used as position actuators. Some other Stepper Motor Applications are to drive floppy discs, numerical control of machine tools,…
Basic Aspects of Control System Design of Microprocessor Based Variable Speed Drives: Based on the examples of drives discussed in the foregoing, general outlines may be drawn for designing the Control System Design of variable…
Margin Angle Control of Synchronous Motors: The commutation Margin Angle Control of Synchronous Motors is defined as the angle measured from the end of commutation to the crossing of the phase voltage which was under…
Inverter Control using Terminal Voltage Sensing: The Inverter Control using Terminal Voltage Sensing of the synchronous motor is obtained using the triggering pulses to the inverter which are synchronized with the rotor position. These signals…
Microprocessor Control of a Current source Inverter Fed Synchronous Motor: A drive system employing a Current source Inverter Fed Synchronous Motor has the following features: A four quadrant drive can be accomplished very easily. A…
Microprocessor Control of Synchronous Motor Drives: Variable speed drives employing Microprocessor Control of Synchronous Motor Drives are becoming very popular in industrial applications. They are an immediate solution for high power reversible drives and are…