An isolated hybrid system comprised of a dispatchable and a non-dispatchable power generation sources, is proposed to supply the load of a remote village in the west region of Haiti. The wind speed data and load data of this remote village are used to study the system. The non-dispatchable generation comes from a nature-dependent wind turbine, and the dispatchable one is a diesel generator. Using MATLAB/Simulink, dynamic simulations are performed to investigate the interaction between these two power sources for the load management, and the voltage and frequency behaviors during wind speed and load variations. Economic analyses of the
system are also conducted. The cost of energy (COE), energy payback time (PBT), internal rate of return (IRR) and avoided cost (AC) of CO2¬, NOx and PM (Particles Materials) of the hybrid system are computed, and results are compared with those of the baseline diesel only case. Simulation results show that the wind turbine and the diesel generator can be operated suitably in parallel, and the economic analyses show the positive benefits of wind generation in reducing COE and increasing the avoided
cost (AC) of emitted pollutions.

Chapter 1 Introduction ………………………………………………………1
1.1 Background …………………….………………………………………………1
1.2 Literature Review..…………………………………………………………….4
1.3 Motivation for this work and thesis outline……..……………………………6
Chapter 2 Wind and Diesel Power Generation System…………………8
2.1 Wind Turbine Modeling………………………………………………………9
2.2 Self Excited Induction Generator (SEIG) Modeling…..……………………..13
2.2.1 Induction Machine..……………………………………………………….14
2.2.2 Equivalent electrical circuit of Induction Machine……………………15
2.2.3 Self Excited Induction Generator………………………………………15
2.3 Diesel Generation System…..………………………………………………..30
2.3.1 Diesel Engine Model.…..………………………………………………...31
2.3.2 Synchronous Generator Model and Equivalent Circuit……………...34
2.3.3 Parameters identification…………………………………………………38
Chapter 3 Hybrid Wind-Diesel Generation System……………………41
3.1 Hybrid wind/diesel system…………………………………………….42
3.2 System frequency control……………………………………………….42
3.3 Control principle…………………………………………………………45
Chapter 4 Economic Analysis of the Hybrid Wind/Diesel System…..56
4.1 Energy Demand… …………………………………………………….……..56
4.2 Diesel Energy System………………………………………………….………59
4.3 Wind Energy System…………………………………………………………...60
4.4 Wind-Diesel System…………………………………………….……………...61
4.5 Hybrid System Spreadsheet Model……………………………………………62
4.6 Costs Analysis…………………………………………………………………64
4.7 Wind-Diesel Hybrid System Economics………………………………………66
4.8 Sensitivity Analysis……………………………………………………………68
Chapter 5 Conclusion and Future Works.……………………………….71
5.1 Conclusion…….……………………………………………………………….71
5.2 Future works………………………………………………………………….. 72
References…………………………………………………………………………74
Appendix A Block diagram of the hybrid system in MATLAB/simulink for the
simulations…………………………………………………………77
Appendix B System data for the economic analysis……………………………79
Appendix C Program used for the economic indices computation ………...…84

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