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Multi-objective design approach of passive filters for single-phase distributed energy grid integration systems using particle swarm optimization

Azab, Mohamed - In: Energy reports 6 (2020), pp. 157-172

This article presents a non-conventional design approach of high order passive filters incorporated with distributed energy grid integration systems based on particle swarm optimization (PSO) as one of multi-objective evolutionary search algorithms. Two topologies of passive grid filters (third...

Persistent link: https://www.econbiz.de/10012193263

Effect of operating methods of wind turbine generator system on net power extraction under wind velocity fluctuations in fields

Wakui, Tetsuya; Yamaguchi, Kazuya; Hashizume, Takumi; … - In: Renewable Energy 16 (1999) 1, pp. 843-846

The effect of how a wind turbine generator system is operated is discussed from the viewpoint of net power extraction with wind velocity fluctuations in relation to the scale and the dynamic behavior of the system. On a wind turbine generator system consisting of a Darrieus-Savonius hybrid wind...

Persistent link: https://www.econbiz.de/10010805975

Energy balance analysis of a stand-alone photovoltaic system, including variable system reliability impact

Kaldellis, J.K.; Koronakis, P.; Kavadias, K. - In: Renewable Energy 29 (2004) 7, pp. 1161-1180

them living in European Union and more than one tenth of them in Greece. An autonomous photovoltaic system is one of the …-alone photovoltaic system, able to guarantee the coverage of remote consumers energy demand located in typical Greek territories using … level on the stand-alone photovoltaic system energy behaviour and initial cost is also examined. Finally, special emphasis …

Persistent link: https://www.econbiz.de/10010807005

Optimum PV-diesel hybrid systems for remote consumers of the Greek territory

Kaldellis, John; Zafirakis, Dimitrios; Kavadias, Kosmas; … - In: Applied Energy 97 (2012) C, pp. 61-67

potential that comprises a stimulus for the use of stand-alone photovoltaic (PV)-based configurations. In this context, the …

Persistent link: https://www.econbiz.de/10010702658

Energy management strategy for a battery-diesel stand-alone system with distributed PV generation based on grid frequency modulation

Urtasun, Andoni; Sanchis, Pablo; Barricarte, David; … - In: Renewable Energy 66 (2014) C, pp. 325-336

A hybrid PV-battery-diesel configuration is very attractive for stand-alone systems in terms of cost and reliability. In many applications, the battery and the diesel generator are centralized and generate the AC grid while the PV generators and loads are distributed and are connected to the...

Persistent link: https://www.econbiz.de/10011045711

Experimental validation of the optimum photovoltaic panels' tilt angle for remote consumers

Kaldellis, John; Kavadias, Kosmas; Zafirakis, Dimitrios - In: Renewable Energy 46 (2012) C, pp. 179-191

Across the entire Greek territory one may encounter several remote consumers that could cover their needs on the basis of PV-based stand-alone applications exploiting the high quality local solar potential. In this context, optimum sizing of such installations also involves investigation of the...

Persistent link: https://www.econbiz.de/10011045957

An economic analysis of a stand-alone and grid-connected cattle farm

Velo, R.; Osorio, L.; Fernández, M.D.; Rodríguez, M.R. - In: Renewable and Sustainable Energy Reviews 39 (2014) C, pp. 883-890

This paper presents an economic study of electricity supply to a dairy cattle farm of 50 livestock units. We compared a stand-alone battery-wind-diesel hybrid system with an only-grid connected system and we analyzed four locations in Spain with different average wind speeds. The farm׳s...

Persistent link: https://www.econbiz.de/10011049536

Integration of renewable energy in microgrids coordinated with demand response resources: Economic evaluation of a biomass gasification plant by Homer Simulator

Montuori, Lina; Alcázar-Ortega, Manuel; Álvarez-Bel, … - In: Applied Energy 132 (2014) C, pp. 15-22

This paper deals with how demand response can contribute to the better integration of renewable energy resources such as wind power, solar, small hydro, biomass and CHP. In particular, an economic evaluation performed by means of the micro-power optimization model HOMER Energy has been done,...

Persistent link: https://www.econbiz.de/10011040590

Comparative cost analyses: total flow vs other power conversion systems for the Salton Sea Geothermal Resource

Wright, G.W. - 2007

Cost studies were done for Total Flow, double flash, and multistage flash binary systems for electric Energy production from the Salton Sea Geothermal Resource. The purpose was to provide the Department of energy's Division of Geothermal Energy with information by which to judge whether to...

Persistent link: https://www.econbiz.de/10009435471

A hybrid intelligent system to diagnose and indicate solutions to financial problems

Pacheco, Roberto; Martins, Alejandro; Weber, Rosina O.; … - 1995

Monitoring and adjusting financial health problems play central role in the firm’s performance.Usually, small firms face difficulties in these tasks for lacking human resources and incapacityto afford a consultant. By analyzing the nature of the diagnosis and the solution of financialproblems...

Persistent link: https://www.econbiz.de/10009451009