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J. Renewable Sustainable Energy 3, 062701 (2011); http://dx.doi.org/10.1063/1.3655372 (18 pages)

Optimal sizing of reliable hybrid renewable energy system considered various load types

S. M. Hakimi, S. M. Moghaddas-Tafreshi, and H. HassanzadehFard

Faculty of Electrical Engineering, Khajeh Nasir Toosi University, Tehran, Iran

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(Received 22 June 2011; accepted 23 September 2011; published online 7 November 2011)

In this paper, a novel intelligent method is applied to the problem of sizing in a hybrid power system such that the demand of residential area is met. This study is performed for Kahnouj area in south-east Iran. It is to mention that there are many similar regions around the world with this typical situation that can be expanded. The system consist of fuel cells, some wind units, some electrolyzers, a reformer, an anaerobic reactor, and some hydrogen tanks. The system is assumed to be stand-alone and uses the biomass as an available energy resource. System costs involve investments, replacement, and operation and maintenance as well as loss of load costs. Prices are all empirical and components are commercially available. In this study, we consider load growth and different types of load profile for their system. In this village, four types of loads exist such as residential, agricultural, industrial, and official loads. Also we consider load growth for the loads. Particle swarm optimization algorithm is used for optimal sizing of system’s components.

© 2011 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. DESCRIPTION OF THE HYBRID SYSTEM COMPONENTS
    1. Wind turbine
    2. Fuel cell
    3. Electrolyzer
    4. Anaerobic reactor
    5. Reformer
    6. Hydrogen tank
    7. Power converter
  3. DESCRIPTION OF THE HYBRID SYSTEM
    1. Generation meets demand
    2. Over generation
    3. Over demand
  4. SYSTEM COST
    1. Net present cost
    2. The objective function
  5. PARTICLE SWARM OPTIMIZATION
    1. Optimization procedure
  6. CONSIDERING GRAPH OF DIFFERENT TYPE OF LOADS IN MICRO-GRID
    1. System operation strategy during loss of power
  7. LOAD GROWTH
  8. SIMULATION RESULTS
  9. CONCLUSION

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1941-7012 (online)

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