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Vinayak N. Shet - IEEE Xplore Author Profile

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The global community is striving towards reduction in greenhouse gas emissions so as to prevent ozone layer depletion thereby protecting the earth from the harmful effects of the suns ultraviolet radiations. One step in this direction is efficient usage of electric energy through usage of energy efficient LED lighting. LED lights use solid state switches which introduce harmonics into the power sy...Show More
The radial distribution networks are usually passive with unidirectional flow of current. However the integration of Distributed Generation (DG) transforms the network to an active one with bidirectional flow of current. The challenge in protection scheme for such system is the coordination of the over current relays by appropriate selection of parameters to satisfy the requirements of sensitivity...Show More
Switch mode Converters are inherent part of modern gadgets, motor drives and power control. To regulate the output voltage, an efficient control is necessary. Digital control is preferred over analog control since it has advantages like low power consumption, less variation to noise, less component variation and programmability. There are various platforms available for control like Microcontrolle...Show More
With increasing demand for electric power globally, alternative energy sources such as wind and solar are integrated into the power supply grid. Integration technologies use power electronic converters and controllers which introduce harmonics and other power quality issues. In addition, growing usage of BLDC motors, UPS, LED lights, inverters, momentary usage of heavy machinery by domestic consum...Show More
This paper presents an average current control technique with an asymmetric bridgeless topology for a 2.S kW front-end unity power factor rectifier. This rectifier is based on the boost power factor correction scheme and aims to reduce conductive loss while maintaining unity power factor for all practical purposes. This converter operates independent of the nature of load, hence has very high dema...Show More
This paper presents a new resonant operated method for an AC to DC converter having reduced device stress. The converter is operated in buck converter mode. An additional switch is used to operate the devices in such a manner, that the charging and discharging take place in a resonant fashion. A higher efficiency can be achieved by turning off the switch under zero current switching (ZCS). The con...Show More
A novel power factor correction circuit is proposed as an improvement over a one stage forward converter. This PFC circuit will achieve high power factor by making the circuit operate in a discontinuous conduction mode and changing the duty period after the cross over instant. The switching technique is such that the off time of the PWM generated signal shall always remains equal to or higher than...Show More
This paper presents a novel buck type AC-DC converter having high power efficiency, high power factor, simple control strategy and rugged overload protection. In this AC-DC converter, the power factor and harmonic distortions are improved by using sine weighted PWM technique and line filter. Thyristors are used as switching devices in the semicontrolled converter due to its low cost and protection...Show More
The conventional vector control method involves coordinate transformations and hence requires real time computations which involves time consuming complex calculations. On the other hand, it is shown in this paper that in drive systems involving periodic load change cycles the fast torque response can be achieved by giving a phase lead to the input voltage whenever the load changes. In addition, a...Show More