All-scale modelling of wind generation and responsive demand in power system studies

This paper presents a general methodology for a more accurate assessment of performance of networks with a high penetration of wind-based energy generation and fully enabled responsive demand capabilities. The presented methodology allows to include in the analysis wind-based generation at all scales of implementation, starting from highly dispersed micro and small-scale units connected at LV, to medium-size wind parks connected at MV, to large-scale wind farms connected at HV. An advanced model of wind energy resources is applied to generate realistic input wind data at all scales of implementation, while newly developed and improved aggregate models are used for the correct representation of micro/small wind generation connected in parallel with demand-responsive system loads. The proposed methodology is specifically intended for the analysis of planning and operation of transmission systems. The approach is illustrated using a case study of an actual section of transmission network, where available measurements at wind parks and other sites are used for the validation of obtained results.