International Journal of Advanced Renewable Energy Research
Volume:1 Issue: 3, 2012

In this paper, the detailed analysis and performance appraisal of a completely new algorithm based on Stimulated Annealing (SA) technique, a more accurate densely clustered controllable precision based fuzzy logic algorithm and a fast-converging high precision robust algorithm based on particle swarm optimization (PSO) has been presented for MPPT to optimize standalone PV panel operating point even under rapidly and significantly changing weather pattern. The proposed algorithms are as simple as traditional P&O and Hill-climbing algorithm, yet they can successfully encounter the oscillation problem and steady state error problem even under worst case scenario with efficiency more than 99%. The algorithms eliminate hardware complexity and can be implemented using programmable microcontrollers. The performances of these proposed algorithms are compared with a state-of-the-art artificially intelligent algorithm known as Genetic algorithm. Results show that, the proposed algorithms can optimize standalone PV panel operating point more swiftly with better accuracy, minimal steady-state errors, and greater range of parameter flexibility compared to their conventional counterpart. Step by step procedures for practical implementation of the proposed algorithms are included at the later part of this paper.

Bangladesh is facing serious energy crisis which is great barrier to overall development. Known reserves (e.g., natural gas and coal) of commercial primary energy sources in Bangladesh are limited in comparison to the development requirements of the nation. In Bangladesh, around 65% of people having lack accesses to electricity and most of them are living in village. Among them about 44% of them are living below poverty line. On the other hand Climate change puts addition threats to development. To combat these situations, renewable energy technology stands out to be one of the prospective sources to meet its unprecedented energy demand and can contribute to achieve sustainable development as country has plentiful supply of renewable sources of energy. This paper investigates the prospect, trend, utilization and development of renewable energy resources and its technology as well as reviews the policy and institution and opportunities of renewable energy technology and finally finds out the impact and role of this technology towards sustainable development and climate change mitigation in context of Bangladesh.

Today’s conflicts on oil are tomorrow’s conflicts on water has become a popular issue to describe the enduring water and energy crisis, although solution for both energy and water shortage seems to be on hand: Making power and water from sun and sea. Concentrating solar power (CSP) offers a sustainable alternative to fossil fuels for large scale seawater desalination. CSP can help to solve the problem This paper presents adequate combinations of technologies for seawater desalination (SD) and concentrating solar power (CSP) used as energy source and a long-term scenario for the demand of freshwater in the Middle East and North Africa (MENA) by a better use of the existing renewable water sources and by sea water desalination powered with solar energy.

This paper highlights research related to wind energy in Bangladesh which originated as early as in 1979 in collaboration with Free University of Brussels (FUB), Belgium through contacts with the ministry of Co-operation and Development, Government of Belgium and Bangladesh Embassy in Brussels. Some organizations like GTZ, LGED, BCAS, BUET, and BCSIR have started measuring wind speeds at some typical locations of Bangladesh with modern equipments. The SRE project of LGED, in collaboration with BUET and has taken up a study on titled “Wind Energy Resource Mapping (WERM)”. The study has been designed in a more comprehensive way aiming at systematic observation on wind regime in initially 20 different suitable locations including Chittagong Hill Tracts region over a longer period of time. A renewable energy policy entitled “Renewable Energy Policy of Bangladesh” has already been adopted by the Ministry of Power, Energy and Mineral Resources, Government of the People’s Republic of Bangladesh. The policy has set up targets for developing renewable energy resources to meet 5% of the total power demand by 2015 and 10% by 2020. For this purpose Bangladesh Power Development Board (BPDB) has installed 50 small wind turbines (the first wind firm in Bangladesh) each having 20 kW capacities, totaling one mega-watt wind battery hydride power plant in Kutubdia Island, in the southern region. The feasibility study of wind power and physical investigation were made on the wind firm.

A novel approach for modeling of each Wind Energy Generation System (WEGS) is proposed. Based on the proposed model, a novel concept for enhancement of efficiency of WECSs is proposed. An Airborne Wind Energy Generation System (AWEGS) is modeled, modified using the proposed concept. The extracted power by the modified AWEGS is estimated using analytical approaches. To verify the effectiveness of the modified AWEGS, a small prototype is manufactured, and an experiment is carried out. The obtained results confirm the predicted results, and demonstrated the effectiveness of the modified AWEGS and the proposed concept for modification of the AWEGSs.