Journal
IEEE TRANSACTIONS ON ENERGY CONVERSION
Volume 38, Issue 2, Pages 1166-1177Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TEC.2022.3221619
Keywords
Wind turbines; Torque; Rotors; Generators; Regulation; Wind speed; Wind power generation; Cooperative output regulation; distributed control; large-scale wind turbines; plug and play; power reserve
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This paper proposes a distributed control framework for coordinating large-scale wind turbines to share the power reserve request fairly on a wind farm. A cooperative output regulation problem is formulated in a multi-agent framework to synchronize turbine system outputs considering the heterogeneity of turbine models. The proposed approach issues the generator torque and blade pitch commands in a unified manner and is resistant to wind disturbances, as demonstrated through simulations and experiments.
This paper develops a distributed control framework to coordinate large-scale wind turbines for fairly sharing the power reserve request on a wind farm. A cooperative output regulation problem is formulated in a multi-agent framework, where the synchronization of turbine system outputs are established regarding the heterogeneity of turbine models. For this purpose, a homogeneous virtual system is created first and embedded into each turbine to generate the agreed trajectories across the wind farm in a distributed manner. The local power tracking of individual turbines is then enforced by the synthesized output regulator, whose control gains are determined by a variant of the Sylvester equation. The proposed approach issues the generator torque and blade pitch commands in a unified manner and is resistant to wind disturbances. The case studies are carried out through simulations and in a real laboratory-scale distributed communication network. The simulation results demonstrate the effectiveness of coordinated actions of wind turbines in response to the changing demands, under both constant and turbulent wind scenarios with the plug-and-play capability.
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