Suprava Chakraborty

Life cycle economic analysis of stand-alone solar pv system in India – a relative study

In this paper, life cycle economic analysis (LCEA) of stand-alone solar photovoltaic (PV) modules is performed. It is tested for their commercial prospects in remote regions of India, which do not have a direct access of grid supply. Availability of grid supply depends on the population density. Solar PV technology is one of the first among several renewable energy technologies that have been adopted worldwide for meeting the basic needs of generation of electricity particularly in remote areas. Overall lifetime expenditures related to the power projects are analyzed and compared with the help of net present worth (NPW) theory. In the context of a developing country like India, it is found that the cost effectiveness of conventional or ‘green’ power driven sources depends on kW rating of generators and daily demand of consumers. The demand coverage, which would determine the commercial viability of renewable and non-renewable sources is calculated considering the practical power rating of generators available in the local market. This study is intended to assist planning of financial matters with regard to installing small to medium scale electric power generation using solar PV module in remote areas of India.

Stability Improvement of Captive Generator Sets Utilizing FACTS Device

Power demand in last two decades has increased substantially increasing the complexity in power system network. Therefore to maintain the transient stability of captive power plant (CPP) during any grid fault or disturbance presents a new challenge to researchers. In case of grid fault, captive power plant immediately isolates its captive generator sets from grid to ensure safety. In this paper, an attempt has been made to improve transient stability of captive generator sets during grid fault using FACTS (Flexible AC Transmission System) controller. The performance of FACTS controllers likes Static Var Compensator (SVC) is observed during grid fault condition. The simulation analysis was performed using MATLAB/Simulink software.

Green sailing of solar PV powered country boat using buck-boost chopper

The objective of this paper is to propose a country boat utilising the application of stand-alone photovoltaic system using Buck-Boost converter which simplifies the power system and stabilize the economic factor. From the viewpoint of environmental protection it is very much essential to regulate the amount of exhaust gases emitted from the diesel engines which are used in normal country boat for sailing in short or long distances. In general, nitrogen oxide, sulphur oxide and particulate matters are considered as toxic substances in exhaust gas from diesel engines, as it causes several fatal diseases. Hence a green sailing country boat, which is solar photovoltaic powered is an alternative solution of diesel engine fitted country boat. Performance and control of DC-DC converter are essential in PV applications. This converter here is a Buck-Boost converter which feeds a DC load. The simulation has been accomplished in software of MATLAB Math works.

Mathematical Methodology to Predict Energy Generation of Grid Connected PV Power Plants in India

This paper presents a reliable mathematical methodology to predict the energy generation from grid connected Photovoltaic plant of different technologies in India. Energy generation of different commercially used PV technologies in different locations of India is predicted using proposed mathematical method. This results show a decisive study to choose the best PV technology for particular location of India. Predicted energy generation is validated with the monthly generation for the whole year of 2014 from operational PV power plants of different technologies. Predicted generation is in good co-relation with the actual real time generation and Capacity Utilization Factor (CUF) of the PV plants. key words: Mathematical Method; PV Power Plant; Energy generation; CUF.

Comparative analysis of NOCT values for mono and multi C-Si PV modules in Indian climatic condition

The power output of Photo-voltaic modules is generally rated at STC (Standard Test Condition), 1000W/m2 irradiance, 25°C temperature and 1.5G Air Mass. But in actual field condition the situation is different from STC. Output of PV module is a function of Irradiance, ambient temperature, wind speed and module temperature. It is well established that power output of PV module decreases with increase of module temperature. So it is important to know the temperature of PV module to determine the reduction in power output due to temperature. Module temperature can be determined if irradiance at that instant and NOCT value of that module is known. This work presents the variation in NOCT value with respect to rated power output of PV module and comparison of NOCT values for same rated power mono and multi crystalline Si modules from various manufacturers. According to this study NOCT value increases with the wattage of PV module. For same rated power modules, NOCT value of mono crystalline Si is more than mult...