Impact of large scale demand side response on system frequency- A case study

Demand side response (DSR) has gained significant interest due to the time-varying and uncertain nature of renewable energy, and the challenges associated with integrating renewable technologies into power systems. DSR is considered as a fundamental component of the emerging smart grid paradigm and is seen as a potential means to achieve higher renewable targets across the globe. It is, therefore, imperative to explore the potential implications of wide-scale DSR on system operation. In particular, the impact of large-scale coordinated load switching on potential operational limits, while considering different DSR-based magnitudes and ramp rates, is considered here. The All Ireland System (AIS) projected for the year 2020, and characterised by a significant penetration of wind power has been used as a test system in the presented research study.