Proceedings ArticleDOI
High gain step up DC-DC converter for DC micro-grid application
Manoranjan Sahoo,K. Siva Kumar +1 more
- pp 1-5
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TLDR
In this paper, a very high gain step up DC-DC converter is proposed, which provides the additional advantage of supplying power to two different loads (i.e. one for high voltage level and another for low voltage level).Abstract:
In this paper a very high gain step up DC-DC converter is proposed. Maximum voltage gain in conventional boost converter like, switched inductor converter, switched capacitor converter, cascaded boost converter etc. are limited due to extreme duty cycle (i.e. duty cycle near to unity). Operation at extreme duty cycle leads to, serious reverse recovery problem at the switches, high conduction losses, high electromagnetic interference etc. Isolated converter such as fly-back converter, push-pull converter, forward converter, bridge converters etc. overcomes the above issues, where basically a transformer or coupled inductor is used to boost the voltage. But, inclusion of transformer or coupled inductor introduces voltage spike at the main switch and power loss due to leakage inductance. Recently, DC micro-grid gets major importance because of the significant increase in DC loads and demand of high quality power. These DC loads require different voltage levels based on their power ratings. Photo voltaic source (PV) is one of the prime source of energy in DC micro-grid. A very high voltage gain converter is necessary for DC micro-grid because of low PV source voltage. In this regard, here a step up DC-DC converter is proposed, which possess a very high voltage gain characteristic. Along with this, it provides the additional advantage of supplying power to two different loads (i.e. one for high voltage level and another for low voltage level), which makes it more suitable for DC micro-grid application. Steady state analysis and PWM control of the proposed converter are described in this paper. Theoretical verification of the proposed converter has been done by simulating it in MATLAB Simulink.read more
Citations
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Reliability and Cost Analysis of Multistage Boost Converters Connected to PV Panels
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High Step-Up/Down Ratio Isolated Modular Multilevel DC-DC Converter for Battery Energy Storage Systems on Microgrids
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Design and analysis of a proposed transformerless/non-isolated high-gain DC-DC converter for renewable energy applications
TL;DR: A transformerless/non-isolated, high-gain DC-DC converter required to increase low voltages in renewable energy applications and the theoretical, simulation and experimental results that indicate the claimed converter performance and capability are given.
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Reliability evaluation of two-stage interleaved boost converter interfacing PV panels based on mode of use
TL;DR: In this paper, the reliability of interleaved boost converters interfacing a PV panel based on mode of use was evaluated and the effect of converter components residential and switching power losses were considered in reliability calculations.
References
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Journal ArticleDOI
Flyback-Type Single-Phase Utility Interactive Inverter With Power Pulsation Decoupling on the DC Input for an AC Photovoltaic Module System
TL;DR: In this paper, a flyback-type utility interactive inverter circuit topology was proposed for photovoltaic (PV) power generation systems when its lifetime under high atmospheric temperature is taken into account.
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Neural-network-based maximum-power-point tracking of coupled-inductor interleaved-boost-converter-supplied PV system using fuzzy controller
TL;DR: In this paper, a feedforward MP-point tracking scheme is developed for the coupled-inductor interleaved-boost-converter-fed PV system using a fuzzy controller that results in better tracking performance.
Journal ArticleDOI
Negative-Sequence Current Injection for Fast Islanding Detection of a Distributed Resource Unit
TL;DR: In this paper, an active islanding detection method for a distributed resource (DR) unit which is coupled to a utility grid through a three-phase voltage-sourced converter (VSC) is presented.
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