Feedback Control in Drive System: Feedback Control in Drive System - A closed loop control of a variable speed drive system employing thyristor power converters is normally a discrete time system when a microprocessor is…
Gate Firing Converters: The firing pulse control unit constitutes the heart of any thyristor power converter. The Gate Firing Converters required by the thyristors are often derived from the digital pulses using a simple buffer…
Speed Detector: One important factor in the closed loop control of variable speed drives employing solid state converters is the Speed Detector. In the dedicated hardware control using analog components, the speed sensing is accomplished…
Applications and Functions of Microprocessors in Electric Drives: With the remarkable progress in the area of microelectronics, reliable and powerful microprocessors have come to be more widely used in the control of electrical drives. A…
Hardware Systems Versus Microprocessor Control: The Hardware Systems Versus Microprocessor Control control of electric drives offers the following advantages when compared to the dedicated hardware control. As has already been discussed, the use of microprocessors…
Introduction to Microprocessors and Control of Electric Drives: Introduction to Microprocessors and Control of Electric Drives - Conventionally, control of thyristor converter fed electrical drives (both dc and ac) is performed using analog discrete components.…
Turbocompressors: The turbocompressors and blowers in the industry require drives rated up to 40 MW. Drives of large rating are also required in steel industry blast furnace blowers in natural gas pipelines and liquefaction processes…
Wound Rotor Induction Motor with Subsynchronous Converter Cascade in the Rotor Circuit: The following points favour the application of a slip ring motor having static slip energy recovery scheme in the Subsynchronous Converter Cascade circuit, to…
Centrifugal Pump Load: Centrifugal Pump Load are used as boiler feed pumps and for pumping water in water pipe lines. The former must be adapted to the variable output of the steam generator. In the…
Coal Mining Process Diagram: The motors used for Coal Mining Process Diagram must be flame proof. They operate at high ambient temperatures. Sometimes the environment may be humid and the motors should have humid proof…
