K. Senthilkumar

Bio: K. Senthilkumar is an academic researcher from VIT University. The author has contributed to research in topics: Ćuk converter & Flyback converter. The author has an hindex of 1, co-authored 1 publications receiving 3 citations.

Interleave isolated boost converter as a frontend converter for fuel cell applications

Abstract: With rising fuel costs, increasing concerns for global climate change, and a growing worldwide demand for electricity, utilizing renewable energy sources such as solar/Fuel power becomes a necessity rather than a luxury. The conversion of renewable energy sources into useful DC or AC power for residential and industrial applications is becoming more popular. But renewable energy re-sources comes with low output voltage (20V to 60V) range, so, in order to utilize this energy effectively, it has to be boosted to high DC voltage by using high efficient power converters & then convert High DC to AC using Voltage fed-Inverter. Isolated boost converter is desirable in the low-to-high dc/dc application where isolation is required or a large step up is in a need. The challenge of designing such a converter for high power applications is how to handle the high current at the input and high voltage at the output. An effective way is to parallel the inputs and series the outputs of the isolated boost converters. Based on this concept, a new interleaved and isolated boost converter is proposed in this paper that has two inductors in parallel at the input to share the current and two capacitors in series at the output to share the voltage. The two Boost converter cells realize demagnetizing by helping each other, which simplifies the transformer structures. With interleaved operation, the current ripple is smaller; therefore, it is possible to use smaller capacitors at the input and output of the converter. All these features make the new interleaved isolated boost converter desirable for high power low-to-high dc/dc applications. At last, a 300 W prototype with 48 V-to-400 V is simulated and tested to verify the theoretical analysis in this paper.

High efficiency power converter for a doubly-fed SOEC/SOFC system

Abstract: Regenerative fuel cells (RFC) have become an attractive technology for energy storage systems due to their high energy density and lower end-of-life disposal concerns. However, high efficiency design of power conditioning unit (PCU) for RFC becomes challenging due to their asymmetrical current-power characteristics that are dependent on the operation mode (energy storage / energy supply). This paper proposes a new PCU architecture for grid-tie RFC with which the RFC's asymmetrical characteristic becomes less critical and thus a much more symmetrical power rating of the dc-dc converter for both operating modes is possible. This paper discusses the design considerations for this novel PCU, and verifies its operation principle with Matlab/Simulink simulations. Experimental results on a tailored dc-dc converter confirm the design simplifications for high efficiency operation along the entire power operating range of the RFC as well as the utilization of the same control strategy design for the two RFC operating modes.

The implementation of quadratic method using pv bi-directional converter in closed loop control with pi controller

Abstract: In this enormous development of technology, the requirements are new per each day. The needs must be satisfied but fulfilling each requirement will generate new desire or need. The technology is evolving day by day because of this recycling process. The invention of fuel-based vehicles shows some de-merits to evolve and shift over to the electrical vehicles. The proposed paper concentrates its main application to be the electrical vehicles, With an improved form of boost as well as buck converter with high voltage gain and efficiency. This shows close loop operation because of its ability to control a drive or electrical vehicle in the place of load. The bi-directional converter adopts quadratic method in proposed model for highly efficient utilization. This paper focuses on the high efficient utilization of bi-directional converter with quadratic property using proportional integral controller for its switching.

Isolated Dual Boost Converter: Controller Design using Affine Parameterisation

Abstract: There is an increasing demand for high gain dc-dc converters due to the use of auxiliary sources at the consumer end. Isolated dual boost converter is a type of interleaved boost converter, which is used in the high gain dc-dc converter applications. The dynamic performance of the converter depends on the controller parameters. This paper discusses the detailed modelling and controller design of isolated dual boost converter. The controller is designed using affine parameterisation. The performance of the converter with controller is verified through MATLAB/SIMULINK simulation and the results are presented.

A Review on Fuel Cell and Different Controller

Abstract: A Renewable energy generation is quickly expanding in the electricity sector. It is true that any new technology has a cost issue at first, but as our minds evolve, we will be able to manage it. It is great need for that source of energy which is economical, high efficiency, commercially available and are less harmful to environment due to use of its. Fuel cells have capacity to replace existing conventional source of energy. The paper provides a detailed overview of FC's, with a focus on the current state of development of various technologies, operational characteristics comparisons and the current techno-economic hurdles to their advancement and future prospects. Without a regulating mechanism, managing large-scale fuel cell-based power systems is problematic. In this paper, thermal, water management and different types of power electronics convertor are extensively discussed, with focus on control strategies to work fuel cell efficiently and effectively.

A Review on Fuel Cell and Different Controller

Abstract: A Renewable energy generation is quickly expanding in the electricity sector. It is true that any new technology has a cost issue at first, but as our minds evolve, we will be able to manage it. It is great need for that source of energy which is economical, high efficiency, commercially available and are less harmful to environment due to use of its. Fuel cells have capacity to replace existing conventional source of energy. The paper provides a detailed overview of FC's, with a focus on the current state of development of various technologies, operational characteristics comparisons and the current techno-economic hurdles to their advancement and future prospects. Without a regulating mechanism, managing large-scale fuel cell-based power systems is problematic. In this paper, thermal, water management and different types of power electronics convertor are extensively discussed, with focus on control strategies to work fuel cell efficiently and effectively.