Abstract
Transmission system operation with wind generation has been well analysed for aspects like forecasting, reliability, control, power quality and fault ride through impacts following large scale integration. However, there are still no standardised protection schemes for wind farms such as those practised for the protection of conventional generation plants. Wind generators' collective response under high penetration scenarios needs special attention especially during abnormal operations such as grid disturbances and faults. Different wind generation technologies exhibit different dynamic characteristics while compared to conventional synchronous generator plants. Network characteristics and their interaction with available wind technologies also impact fault behaviour. This paper first comprehensively reviews the integration characteristics and criteria for three different wind generator technologies connected to high voltage transmission systems. A case study in Power Factory Dig SILENT has been developed to assess and compare the fault response of wind generator technology types. For weaker interconnecting grids, protection schemes performance and relay operation are assessed for various wing turbine generator types. Various challenges and difficulties experienced are highlighted before drawing conclusions.
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