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Aravindprasad, M.
- An Efficient Recycling of Leakage Energies in Interleaved DC-DC Converter
Authors
1 Department of Instrumentation & Control Engg, Tamilnadu College of Engineering, Coimbatore-21, IN
Source
Programmable Device Circuits and Systems, Vol 8, No 5 (2016), Pagination: 124-129Abstract
In order to improve the efficiency of DC–DC converter common active clamp boost circuit is used. This can be achieved by interleaving the coupled-inductor boost converters. The Clamp boost converter is used to clamp the voltage stresses of all the switches in the interleaved converters, caused by the leakage inductances present in the practical coupled inductors, to a low voltage level by use of PID controller. The leakage energies of the interleaved converters are collected in a clamp capacitor and recycled to the output by the clamp boost converter controlled by the PID controller. The proposed converter achieves high efficiency because of the recycling of the leakage energies, reduction of the switch voltage stress, and reduction of the output diode’s reverse recovery problem. Detailed analysis and design of the proposed converter are carried out. The effectiveness of the control strategies have been verified by simulation results.
- Automation of Sugar Cane Crushing in Sugar Mill
Authors
Source
Automation and Autonomous Systems, Vol 8, No 5 (2016), Pagination: 139-142Abstract
The Sugar Plant contains various stages involved in the production of sugar starting from the inflow of sugarcane into the crushing machine. Now a days in Sugar Plant, if heavy load enters into the crushing machine it cannot crush properly. So the wastage is increased and production rate will be reduced. To overcome this problem, we are going to implement the Variable Frequency Drive (VFD) based speed control of three phase induction motor. The VFD controls the speed of three phase induction motor depending upon the load entering the crushing machine by increasing or decreasing the RPM of the motor. The whole unit is controlled by Programmable Logic Controller (PLC) and monitored by Supervisory Control and Data Acquisition system (SCADA).