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Articles by K. Parkavi Kathirvelu
Total Records ( 3 ) for K. Parkavi Kathirvelu
  L. Pradeep Raja , R. Balasubramanian , K. Parkavi Kathirvelu and Rengarajan Amirtharajan
  This study presents a new Space Vector Pulse Width Modulation (SVPWM) based stator oriented non-linear control of induction motor drive system using MATLAB/Simulink environment. The non-linear control is employed in the stator by making a small change in the variable transformation and this control technique will not affect the system dynamics and improves the performance in all four quadrants. This reduces size and cost of the induction motor drive system. The steady state and transient response of the drive system is observed in all the four quadrants and their torque and speed characteristics were studied. This non-linear control in this system is better compared to other systems. The motor drive is simulated in all four quadrants and their waveforms were plotted.
  K. Parkavi Kathirvelu and R. Balasubramanian
  A Phase Shifted-Zero Voltage Switching (PS-ZVS) Full Bridge DC-DC Converter (FBDCC) over a wide load variation is proposed. The proposed converter is designed for high efficiency, small size and low switching stress also for no load to wide load variations. In this converter Phase Shifted Pulse Width Modulation (PS-PWM) control is used to reduce the ringing. The transformer leakage inductance is used for resonance where losses are reduced and efficiency is more. The operation of the proposed converter is simulated using Pspice software and verified on a 1 kW (kW) experimental prototype converter operating at 25 kHz with 25 V dc input.
  K. Parkavi Kathirvelu , R. Balasubramanian , Ogirala Apurna and Rengarajan Amritharajan
  This study focuses on the control of fuel cell based boost converter in Distributed Generation (DG) systems in smart grid under voltage sag conditions. Different control strategies for the fuel cell based boost converter are designed. Moreover, the control strategies for boost converter are investigated for different types of loads in the power conversion system. The power conversion system is considered with different loads and the voltage sag is studied.
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