This paper presents a method to determine the internal resistance of a bank of deep-cycle lead acid batteries that are part of a stand-alone photo-voltaic system. Both the charge and discharge resistances are calculated as a function of the state-of-charge (SOC) of the battery from daily variations in battery terminal voltage as well as charge and discharge currents. The method is illustrated b...

This paper focus on a special type of inverter topology for photo voltaic applications. The proposed system is a grid connected inverter system based on interleaved flyback topology. Aim of this paper is to design flyback inverter at high power because today’s PV inverter technology based on this topology only used at very low power as micro inverter. The analysis of proposed flyback inverter a...

In this study, an interleaved soft switching Boost Converter is used to track the maximum power point of PV array and full bridge inverter is used to stabilize the dc bus voltage. In this method, an interleaved technique is adopted to reduce the current rating of each device. Switching losses are reduced by adapting a zero voltage transition which increases the efficiency of the system. The exp...

Solar power is the major renewable energy source opted by developing countries as stand-alone / Grid enabled system. Industries and educational institutions are opting for solar energy to combat power crisis. This paper proposes knowledge based, self configurable, smart controller to efficiently use solar energy according to load, under frequent grid failure environment. It is enabled with faul...

This work deals with the design and validation of a combined control strategy to satisfy requirements for both soft switching Maximum Power Point Tracking (MPPT) Photo Voltaic based (PV-based) battery charging system. The proposed controller is employed two-stage parallel full-wave Zero Current Switching (ZCS) quasi resonant boost converter obtain maximum voltage using Perturb Observation (P&am...

Providing trustworthy and accurate multi-frequency (or harmonic) models for renewable energy generators (REG) is an ongoing challenge harmonic studies. There have been effective attempts to propose design a test device validate the models, mainly based on shunt current perturbations. However, using additional devices perturbations costly converter-based sites. This paper provides specifications...

Solar Photovoltaic (PV) has emerged as a major contender to serve as an alternative energy source and is currently playing a leading role in supporting the existing conventional power generation systems. Several solar PV systems require a high gain front end dc-dc converter. Conventional dc-dc converters can offer limited gain and their efficiency drops as the gain requirement increases. This p...

In order to supply power from a solar panel or photo voltaic system at a low voltage to a grid at high voltage, a power electronic converter which is capable of voltage boosting and inversion is required. Newly introduced Switched Boost Inverter is capable of achieving both these objectives by a single stage. This paper presents a PWM control strategy based switched Boost Inverter (SBI) for DC ...

To get maximum power from Photo Voltaic (PV) panel, a DC-DC converter is operated with an active switched LC-network and fuzzy controller, which boosts the output voltage by utilizing Maximum Power Point Tracking (MPPT). In areas where solar energy abundant, PV systems offer low-cost source of electricity. Non-Polluting low maintenance are two advantages system. There several factors that can r...