Evaluation of Synthetic Inertia Provision from Wind Plants

High penetration of wind generation causes concerns regarding the frequency stability if wind plants do not provide inertial response. Extensive research has been conducted to investigate the design of controller to facilitate wind plants to provide synthetic inertia. However, the economic value of synthetic inertia provision from wind plants has not yet been understood. This paper develops a methodology to incorporate the synthetic inertia provided by wind plants into power system scheduling, therefore enables to assess its economic value. Sensitivity studies are carried to analyses the impact of inertia constant, percentage of total wind plants to be equipped with synthetic inertia capability, RoCoF limit and delivery time of frequency response on the value of synthetic inertia.