An Adaptive Control Scheme for Variable Speed Wind Turbines Providing Frequency Regulation in Isolated Power Systems with Thermal Generation

Fernández Guillamón, Ana and Martínez de Lucas, Guillermo and Molina García, Ángel and Sarasúa Moreno, José Ignacio (2020). An Adaptive Control Scheme for Variable Speed Wind Turbines Providing Frequency Regulation in Isolated Power Systems with Thermal Generation. "Energies", v. 13 (n. 13); p. 3369. ISSN 1996-1073. https://doi.org/10.3390/en13133369.

Description

Title: An Adaptive Control Scheme for Variable Speed Wind Turbines Providing Frequency Regulation in Isolated Power Systems with Thermal Generation
Author/s:
  • Fernández Guillamón, Ana
  • Martínez de Lucas, Guillermo
  • Molina García, Ángel
  • Sarasúa Moreno, José Ignacio
Item Type: Article
Título de Revista/Publicación: Energies
Date: 1 July 2020
ISSN: 1996-1073
Volume: 13
Subjects:
Freetext Keywords: Frequency Control, Isolated System, Linear Regression, Power System Stability, Wind, Turbines
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería Civil: Hidráulica, Energía y Medio Ambiente
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The lack of synchronous inertia, associated with the relevant penetration of variable speedwind turbines (VSWTs) into isolated power systems, has increased their vulnerability to strongfrequency deviations. In fact, the activation of load shedding schemes is a common practice when anincident occurs, i.e., the outage of a conventional unit. Under this framework, wind power plantsshould actively contribute to frequency stability and grid reliability. However, the contribution ofVSWTs to frequency regulation involves several drawbacks related to their efficiency and equipmentwear due to electrical power requirements, rotational speed changes, and subsequently, shaft torqueoscillations. As a result, wind energy producers are not usually willing to offer such frequencyregulation. In this paper, a new control technique is proposed to optimize the frequency response ofwind power plants after a power imbalanced situation. The proposed frequency controller dependson different power system parameters through a linear regression to determine the contribution ofwind power plants for each imbalance condition. As a consequence, VSWTs frequency contributionis estimated to minimize their mechanical and electrical efforts, thus reducing their equipment wear.A group of sixty supply-side and imbalance scenarios are simulated and analyzed. Results of the casestudy are compared to previous proposals. The proposed adaptive control reduces the maximumtorque and rotational speed variations while at the same time maintaining similar values of the loadshedding program. Extensive results and discussion are included in the paper.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainENE2016-77951-RUnspecifiedUnspecifiedValue of Pumped-Hydroenergy Storage in Isolated Power Systems with High Wind Power Penetration

More information

Item ID: 62923
DC Identifier: http://oa.upm.es/62923/
OAI Identifier: oai:oa.upm.es:62923
DOI: 10.3390/en13133369
Official URL: https://www.mdpi.com/1996-1073/13/13/3369
Deposited by: Memoria Investigacion
Deposited on: 10 Jul 2020 10:40
Last Modified: 10 Jul 2020 10:40
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