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Papers by kanimozhi G
Journal of Advanced Transportation
A plug-in hybrid electric vehicles (PHEV) charger adapter consists of an AC/DC power factor corre... more A plug-in hybrid electric vehicles (PHEV) charger adapter consists of an AC/DC power factor correction (PFC) circuit accompanied by a full-bridge isolated DC/DC converter. This paper introduces an efficient two-stage charger topology with an improved PFC rectifier as front-end and a high-frequency zero voltage switching (ZVS). Current switching (ZCS) DC/DC converter is the second part. The front-end converter is chosen as bridgeless interleaved (BLIL) boost converter, as it provides the advantages like lessened input current ripple, capacitor voltage ripple, and electromagnetic interference. Resettable integrator (RI) control technique is employed for PFC and DC voltage regulation. The controller achieves nonlinear switching converter control and makes it more resilient with the faster transient response and input noise rejection. The second stage incorporates a resonant circuit, which helps in achieving ZVS/ZCS for inverter switches and rectifier diodes. PI controller with phase sh...
This paper discusses non-isolated softswitching bidirectional dc/dc converter for interfacing sto... more This paper discusses non-isolated softswitching bidirectional dc/dc converter for interfacing storage of energy in DC microgrid. The half bridge boost converter is applied at the input port. Subsequently, LCL resonant circuit is implemented to aid in soft switching of switches and diodes. A voltage gain of 2X is achieved using the voltage doubler circuit at the output. The overall voltage gain here is obtained by non-isolated circuit. The higher side voltage is halved by the capacitive divider to increase the step-down ratio. Low output voltage ripple is gained by the circuit by operating it at high frequencies. During buck/boost operation, Zero voltage turn on for switches and zero current turn on and turn off is achieved by diodes. Without the usage of external snubber circuit, the voltage stress across the semiconductor devices is clinched.
Indonesian Journal of Electrical Engineering and Computer Science
The successful inclusion of microgrids for enhancement of the existing power system is laden with... more The successful inclusion of microgrids for enhancement of the existing power system is laden with many challenges. Increase in demand and insufficient power generation results in power shutdown in several areas which comprises non-critical loads. The preface of Distributed Generation (DG) in power system has varied implications on the existing system. The concept proposed in this paper helps in time scheduling and load scheduling of a power system based on priority setting and time setting. The load management may also be done using IoT which enables load shedding from remote areas.
Journal of Advanced Transportation
A plug-in hybrid electric vehicles (PHEV) charger adapter consists of an AC/DC power factor corre... more A plug-in hybrid electric vehicles (PHEV) charger adapter consists of an AC/DC power factor correction (PFC) circuit accompanied by a full-bridge isolated DC/DC converter. This paper introduces an efficient two-stage charger topology with an improved PFC rectifier as front-end and a high-frequency zero voltage switching (ZVS). Current switching (ZCS) DC/DC converter is the second part. The front-end converter is chosen as bridgeless interleaved (BLIL) boost converter, as it provides the advantages like lessened input current ripple, capacitor voltage ripple, and electromagnetic interference. Resettable integrator (RI) control technique is employed for PFC and DC voltage regulation. The controller achieves nonlinear switching converter control and makes it more resilient with the faster transient response and input noise rejection. The second stage incorporates a resonant circuit, which helps in achieving ZVS/ZCS for inverter switches and rectifier diodes. PI controller with phase sh...
This paper discusses non-isolated softswitching bidirectional dc/dc converter for interfacing sto... more This paper discusses non-isolated softswitching bidirectional dc/dc converter for interfacing storage of energy in DC microgrid. The half bridge boost converter is applied at the input port. Subsequently, LCL resonant circuit is implemented to aid in soft switching of switches and diodes. A voltage gain of 2X is achieved using the voltage doubler circuit at the output. The overall voltage gain here is obtained by non-isolated circuit. The higher side voltage is halved by the capacitive divider to increase the step-down ratio. Low output voltage ripple is gained by the circuit by operating it at high frequencies. During buck/boost operation, Zero voltage turn on for switches and zero current turn on and turn off is achieved by diodes. Without the usage of external snubber circuit, the voltage stress across the semiconductor devices is clinched.
Indonesian Journal of Electrical Engineering and Computer Science
The successful inclusion of microgrids for enhancement of the existing power system is laden with... more The successful inclusion of microgrids for enhancement of the existing power system is laden with many challenges. Increase in demand and insufficient power generation results in power shutdown in several areas which comprises non-critical loads. The preface of Distributed Generation (DG) in power system has varied implications on the existing system. The concept proposed in this paper helps in time scheduling and load scheduling of a power system based on priority setting and time setting. The load management may also be done using IoT which enables load shedding from remote areas.