Electromechanical Design of Synchronous Power Controller in Grid Integration of Renewable Power Converters to Support Dynamic Stability

Mostafa Abdollahi, Jose Ignacio Candela, Andres Tarraso, Mohamed Atef Elsaharty and Elyas Rakhshani
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Mostafa Abdollahi: Electrical Engineering Department, Technical University of Catalonia, 08222 Barcelona, Spain
Jose Ignacio Candela: Electrical Engineering Department, Technical University of Catalonia, 08222 Barcelona, Spain
Andres Tarraso: Electrical Engineering Department, Technical University of Catalonia, 08222 Barcelona, Spain
Mohamed Atef Elsaharty: Research Institute for Autonomous Systems, University of North Dakota, Grand Forks, ND 58202, USA
Elyas Rakhshani: Department of Electrical Sustainable Energy, Delft University of Technology, 2628 Delft, The Netherlands

Energies, 2021, vol. 14, issue 8, 1-31

Abstract: Nowadays, modern power converters installed in renewable power plants can provide flexible electromechanical characteristics that rely on the developed control technologies such as Synchronous Power Controller (SPC). Since high renewable penetrated power grids result in a low-inertia system, this electromechanical characteristic provides support to the dynamic stability of active power and frequency in the power generation area. This goal can be achieved through the proper tuning of virtual electromechanical parameters that are embedded in the control layers of power converters. In this paper, a novel mathematical pattern and strategy have been proposed to adjust dynamic parameters in Renewable Static Synchronous Generators controlled by SPC (RSSG-SPC). A detailed dynamic modeling was obtained for a feasible design of virtual damping coefficient and virtual moment of inertia in the electrometrical control layer of RSSG-SPC’s power converters. Mathematical solutions, modal analysis outcomes, time-domain simulation results, and real-time validations of the test in IEEE-14B benchmark confirm that the proposed method is an effective procedure for the dynamic design of RSSG-SPC to provide these dynamic stability supports in grid connection.

Keywords: dynamic stability; renewables grid connection; small signal modelling; synchronous power controller; virtual inertia; virtual damping (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 (1)

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