A Novel Control Architecture for Hybrid Power Plants to Provide Coordinated Frequency Reserves

Energies

Daniel Vázquez Pombo¹  Florin Iov¹  Daniel-Ioan Stroe¹ 

[1] Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark;

关键词: hybrid power plant;    control architecture;    coordination of reserves;    frequency support;    frequency control dead band;    fast frequency response;    frequency containment reserve;   

DOI  :  10.3390/en12050919

来源: DOAJ

【 摘 要 】

The inertia reduction suffered by worldwide power grids, along with the upcoming necessity of providing frequency regulation with renewable sources, motivates the present work. This paper focuses on developing a control architecture aimed to perform frequency regulation with renewable hybrid power plants comprised of a wind farm, solar photovoltaic, and a battery storage system. The proposed control architecture considers the latest regulations and recommendations published by ENTSO-E when implementing the first two stages of frequency control, namely the fast frequency response and the frequency containment reserve. Additionally, special attention is paid to the coordination among sub-plants inside the hybrid plant and also between different plants in the grid. The system’s performance is tested after the sudden disconnection of a large generation unit (N-1 contingency rules). Thus, the outcome of this study is a control strategy that enables a hybrid power plant to provide frequency support in a system with reduced inertia, a large share of renewable energy, and power electronics-interfaced generation. Finally, it is worth mentioning that the model has been developed in discrete time, using relevant sampling times according to industrial practice.

【 授权许可】

Unknown