Dynamic Modelling of Large Autonomous power systems with high penetration from renewable (wind & hydro) power sources

International audienceThis paper presents a model for the transient stability analysis of isolated power systems including various conventional (thermal, gas, diesel) and renewable (hydro, wind) power units. The objective is to assess the impact of a high integration from renewables and to focus on the interaction between hydro units - which have a special dynamic behaviour, and wind turbines. Detailed models for the power system components are developed. Emphasis is given to the representation of different hydro power plant structures. An algorithm is proposed for the identification of the unknown power system parameters. The examined case study is the one of the power system of New Caledonia, where various types of hydro plants and a wind farm are installed. The developed model permits to define penetration limits for the renewable sources, to define rules for the safe operation of the system and finally it contributes to the dimensioning of new power plant installations