Abstract
The increased penetration of Renewable Energy Generation (ReGen) plants in future power systems poses several challenges to the stability of the entire system. In future green energy rich power systems, the responsibility for providing ancillary services will be shifted from conventional power plants towards ReGen plants, such as wind and photovoltaic power plants. Frequency control support from the Wind Power Plants (WPPs) is one of the crucial ancillary services in order to preserve operational stability in case of grid disturbances. Among other requirements, the ability to provide fast frequency control support from ReGen plants will highly depend on the underlying communication infrastructure that allows an exchange of information between different ReGen plants and the control centers. This paper, therefore, focuses on the evaluation of the impact of communication and the related aspects to provide online frequency control support from ReGen (with special focus on WPP). The performance evaluation is based on an aggregated WPP model that is integrated into a generic power system model. This generic power system model is specifically designed to assess the ancillary services in a relatively simple yet relevant environment. Several case studies with different wind speeds at a particular wind-power penetration level and communication scenarios are considered to evaluate the performance of power system frequency response. The article provides the Transmission System Operator (TSO) and other communication engineers insights into the importance and various aspects of communication infrastructure for general service coordination between WPPs and specifically primary frequency control coordination from WPPs in future power systems.
Highlights
The trend in power systems all over the world is changing and expanding through new interconnections with large penetration of Renewable Energy Generation (ReGen) plants, such as Wind Power Plants (WPPs) and photovoltaic power plants (PVP)
This will give an understanding of the extent to which a network delay may affect the system’s ability to support frequency control coordination from WPPs
This paper assesses the impact of Information and Communication Technologies (ICT) on the frequency control support (FFR) from ReGen plants, with special focus on WPPs
Summary
The trend in power systems all over the world is changing and expanding through new interconnections with large penetration of ReGen plants, such as WPP and photovoltaic power plants (PVP). In [34,35], the authors have investigated the impact providing online voltage/reactive-power support from ReGen plants using cellular-based public networks It has been identified how higher delays, failure in communication and cyberattacks can deteriorate the performance of a power system.
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