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Dindigul, India

Kaliyappan K.,RVSCET
Journal of Electrical Engineering and Technology | Year: 2013

This paper presents a novel nonlinear model of Switched Reluctance Generator (SRG) based on wind Energy Conversion system. Closed loop control with based Proportional Integrator current Chopping Control machine model is used. A Power converter in SRG can be controlled by using PI-CCC proposed model, and can be produced maximum power efficiency and minimize the ripple contents in the output of SRG. A second power converter namely PI based controlled PWM Inverter is used to interface the machine to the Grid. An effective control technique for the inverter, based on the pulse width modulation (PWM) scheme, has been developed to make the line voltage needs less power switching devices and each pair of turbine the generated active power starts increasing smoothly. This proposed control scheme feasibility and validity are simulated on SIMULINK/SIM POWER SYSTEMS only. Source

Sasikumar S.,SBM CET | Sudha S.,RVSCET | Maheswari R.U.,EGSPEC
IEEE-International Conference on Advances in Engineering, Science and Management, ICAESM-2012 | Year: 2012

Wireless mesh networks (WMNs) experience frequent link failures caused by channel interference, bandwidth demands causes severe performance degradation in WMNs. Link failure will lead to produce a sequence of disruptions to deliver the packets to the destination. To overcome this ART rerouting the traffic via an alternative path from a node whose local link is down without the need to wait until the source node knows about the failure. This is achieved by creating a new backup routing table based on the original routing table which is computed by the dijkstra algorithm. The goal of these algorithms is to reduce loss of packets, end-to-end delay time, improve throughput. © 2012 Pillay Engineering College. Source

Vimala R.,PSNA College of Engineering and Technology | Baskaran K.,GCT | Aravind Britto K.R.,RVSCET
UPB Scientific Bulletin, Series C: Electrical Engineering | Year: 2012

This paper presents a filter analysis of conducted Electro-Magnetic Interference (EMI) for switching power converters (SPC) based on noise impedances. EMI filter performance depends on the noise source impedance of the circuit and the noise load impedance at the test site. The noise source impedance is due to the circuit parameters and parasitic elements in the power converter and its environment. The EMI noise is identified by time domain measurements associated with an isolated half-bridge ac-dc converter. The proposed method uses the practical approach of measuring the power converter noise spectrum and using the data to calculate the maximum possible magnitude and minimum possible magnitude of the DM and CM noise impedances. The noise impedance magnitude information aids the design of the EMI filter. The practical filters like Complete EMI filter and X2Y filter are investigated. Experimental results are also included to verify the validity of the proposed method. The results obtained satisfy the Federal Communications Commission (FCC) class A and class B regulations. Source

Britto K.R.A.,RVSCET | Dhanasekaran R.,College | Vimala R.,PSNA College of Engineering and Technology | Saranya B.,PSNA College of Engineering and Technology
2011 International Conference on Recent Advancements in Electrical, Electronics and Control Engineering, IConRAEeCE'11 - Proceedings | Year: 2011

This paper provides a modeling approach for conducted Electromagnetic interference (EMI) in Switching Power Converters (SPC). Among the variety of switched-mode power converters, the flyback converter is the favorite choice for low power application due to its low component count, cost-effective structure as well as its large dynamic range. The simulation results declare that the derived model can almost predict EMI. © 2011 IEEE. Source

Kaliyappan K.,RVSCET
Journal of Electrical Engineering and Technology | Year: 2014

A wind generator (WG) maximum power point tracking (MPPT) system is presented here. It comprises of a variable-speed wind generator, a high-efficiency boost-type dc/dc converter and a control unit. The advantages of the aimed system are that it does not call for the knowledge of the wind speed or the optimal power characteristics and that it operates at a variable speed, thus providing high efficiency. The WG operates at variable speed and thus suffers lower stress on the shafts and gears compared to constant-speed systems. It results in a better exploitation of the available wind energy, especially in the low wind-speed range of 2.5-4.5 m/s. It does not depend on the WG wind and rotor-speed ratings or the dc/dc converter power rating. Higher reliability, lower complexity and cost, and less mechanical stress of the WG. It can be applied to battery-charging applications. Source

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