Contribution of Wind Farms to the Stability of Power Systems with High Penetration of Renewables

Jesus Castro Martinez, Santiago Arnaltes, Jaime Alonso-Martinez and Jose Luis Rodriguez Amenedo
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Jesus Castro Martinez: Electrical Engineering Department, Superior Polytechnique School, Faculty of Engineering, Carlos III University of Madrid, Leganés, 28911 Madrid, Spain
Santiago Arnaltes: Electrical Engineering Department, Superior Polytechnique School, Faculty of Engineering, Carlos III University of Madrid, Leganés, 28911 Madrid, Spain
Jaime Alonso-Martinez: Electrical Engineering Department, Superior Polytechnique School, Faculty of Engineering, Carlos III University of Madrid, Leganés, 28911 Madrid, Spain
Jose Luis Rodriguez Amenedo: Electrical Engineering Department, Superior Polytechnique School, Faculty of Engineering, Carlos III University of Madrid, Leganés, 28911 Madrid, Spain

Energies, 2021, vol. 14, issue 8, 1-21

Abstract: Power system inertia is being reduced because of the increasing penetration of renewable energies, most of which use power electronic interfaces with the grid. This paper analyses the contribution of inertia emulation and droop control to the power system stability. Although inertia emulation may appear the best option to mitigate frequency disturbances, a thorough analysis of the shortcomings that face real-time implementations shows the opposite. Measurement noise and response delay for inertia emulation hinder controller performance, while the inherently fast droop response of electronic converters provides better frequency support. System stability, expressed in terms of rate of change of frequency (ROCOF) and frequency nadir, is therefore improved with droop control, compared to inertia emulation.

Keywords: inertia emulation; droop control; fast frequency response; wind power systems; renewable energy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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