Impact of Combined Demand-Response and Wind Power Plant Participation in Frequency Control for Multi-Area Power Systems

Irene Muñoz-Benavente, Anca D. Hansen, Emilio Gómez-Lázaro, Tania García-Sánchez, Ana Fernández-Guillamón and Ángel Molina-García
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Irene Muñoz-Benavente: Department of Electrical Engineering, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
Anca D. Hansen: DTU Wind Energy, Technical University of Denmark, 4000 Roskilde, Denmark
Emilio Gómez-Lázaro: Renewable Energy Research Institute and DIEEAC-EDII-AB. Universidad de Castilla-La Mancha, 02071 Albacete, Spain
Tania García-Sánchez: Department of Electrical Engineering, Universidad Politécnica de Valencia, 46022 Valencia, Spain
Ana Fernández-Guillamón: Department of Electrical Engineering, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
Ángel Molina-García: Department of Electrical Engineering, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain

Energies, 2019, vol. 12, issue 9, 1-19

Abstract: An alternative approach for combined frequency control in multi-area power systems with significant wind power plant integration is described and discussed in detail. Demand response is considered as a decentralized and distributed resource by incorporating innovative frequency-sensitive load controllers into certain thermostatically controlled loads. Wind power plants comprising variable speed wind turbines include an auxiliary frequency control loop contributing to increase total system inertia in a combined manner, which further improves the system frequency performance. Results for interconnected power systems show how the proposed control strategy substantially improves frequency stability and decreases peak frequency excursion (nadir) values. The total need for frequency regulation reserves is reduced as well. Moreover, the requirements to exchange power in multi-area scenarios are significantly decreased. Extensive simulations under power imbalance conditions for interconnected power systems are also presented in the paper.

Keywords: wind integration; demand response; frequency control; ancillary services (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: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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