Automatic Reactive-Power Control of Isolated Wind-Diesel Hybrid Power Systems

This paper presents an automatic reactive-power control of an isolated wind-diesel hybrid power system having an induction generator (IG) for a wind-energy-conversion system and synchronous generator (SG) for a diesel-generator (DG) set. To study the effect of the size of the wind-power generation on the system performance, three examples of the hybrid system are considered with different wind-power-generation capacities. The mathematical model of the system using reactive-power-flow equations is developed. Three different types of static var compensators (SVCs) commonly used in conventional power system along with IEEE type-I excitation are considered to compare their performance in a hybrid system

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