access icon free Modelling of wind generation at all scales for transmission system analysis

This study presents a general methodology for a more accurate assessment of performance of networks with a high penetration of wind-based energy generation. The methodology allows to analyse wind generation at all scales of implementation, including highly dispersed micro- and small-scale individual wind turbines connected at low voltage, as well as small- to medium-size wind farms (WFs) connected to distribution networks at medium voltage. Such an ‘all-scale’ approach for modelling wind generation is still missing from existing literature. An advanced mesoscale atmospheric model of wind energy resources is applied to generate realistic input wind speed data at all scales of implementation, from which generated power outputs are calculated using simple but accurate aggregate wind generation models. The presented methodology is specifically intended for assessing the impact of embedded wind generation on transmission system planning and operation. The methodology is validated using a case study of an actual section of the UK transmission network, where measurements from several WFs and system bulk load supply points are used to demonstrate its applicability and assess its limitations.

Inspec keywords: power system measurement; wind turbines; power system simulation; power distribution planning; power transmission planning; distributed power generation; power generation planning; wind power plants

Other keywords: distribution network; power output generation; wind energy resource; wind-based energy generation modelling; small-size wind farm; WF; realistic input wind speed data generation; advanced mesoscale atmospheric model; medium-size wind farm; highly dispersed microscale individual wind turbine; transmission system planning analysis; all-scale approach; system bulk load supply point; UK transmission network; highly dispersed small-scale individual wind turbine

Subjects: Distributed power generation; Power system measurement and metering; Wind power plants; Power system planning and layout; Distribution networks

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