Nyquist Lecture

Dennice Gayme
Johns Hopkins University, USA

Title: Towards collective control of wind turbine arrays on land and sea

Abstract: Wind farms comprise a network of dynamical systems that are coupled through the turbulent atmospheric boundary layer (ABL).  Wind farm control that accounts for this coupling have been shown to enable more efficient farm level power tracking for participation in grid services. In this talk we extend this idea to floating offshore wind farms, where the six degree of freedom turbine and platform system leads to additional complexity in both the turbine and farm level control problems. We introduce a suite of turbine and farm level models arranged in a traditional inner-outer loop architecture that ensures turbine and farm level tracking performance of regulation market signals.

Bio: Dennice F. Gayme is a Professor in Mechanical Engineering at Johns Hopkins University. She received her B. Eng. & Society in Mechanical Engineering from McMaster University in 1997, an M.S. in Mechanical Engineering from the University of California at Berkeley in 1998, and her Ph.D. in Control and Dynamical Systems from the California Institute of Technology in 2010. Her research interests are in modeling, analysis and control of spatially distributed and large-scale networked systems, such as wind farms, wall-bounded shear flows, and power systems. She was a recipient of a JHU Catalyst Award in 2015, ONR Young Investigator and NSF CAREER awards in 2017, a Whiting School of Engineering Johns Hopkins Alumni Association Excellence in Teaching Award in 2020, and the Turbulence and Shear Flow Phenomena (TSFP12) Nobuhide Kasagi Award in 2022. She is a fellow of the American Physical Society (2024) and serves on the editorial boards of Physical Review Fluids and PRX Energy.