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Load Frequency Control for Multi-Area Power Plants with Integrated Wind Resources

Applied sciences, 2021-04, Vol.11 (7), p.3051 [Peer Reviewed Journal]

2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 2076-3417 ;EISSN: 2076-3417 ;DOI: 10.3390/app11073051

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  • Title:
    Load Frequency Control for Multi-Area Power Plants with Integrated Wind Resources
  • Author: Huynh, Van Van ; Minh, Bui Le Ngoc ; Amaefule, Emmanuel Nduka ; Tran, Anh-Tuan ; Tran, Phong Thanh ; Phan, Van-Duc ; Pham, Viet-Thanh ; Nguyen, Tam Minh
  • Subjects: Control methods ; Control stability ; Design ; Frequency control ; Linear matrix inequalities ; load frequency control ; Load matching ; Parameter uncertainty ; Power flow ; Power plants ; Random loads ; renewables plants ; Sliding mode control ; state observer ; State observers ; Turbines ; Variables ; Wind ; Wind farms ; Wind power
  • Is Part Of: Applied sciences, 2021-04, Vol.11 (7), p.3051
  • Description: To provide a more practical method of controlling the frequency and tie-line power flow of a multi-area interconnected power system (MAIPS), a state observer based on sliding mode control (SOboSMC) acting under a second-order time derivative is proposed. The proposed design is used to study load frequency control against load disturbance, matched and mismatched uncertainty and parameter measurement difficulties of power systems that exist in the modern power plant, such as multi-area systems integrated with wind plants. Firstly, the state observer is designed to optimally estimate system state variables. The estimated states are applied to construct the model of the MAIPS. Secondly, a SOboSMC is designed with an integral switching surface acting on the second-order time derivative to forcefully drive the dynamic errors to zero and eliminate chattering, which can occur in the first-order approach to sliding mode control. In addition, the stability of the total power system is demonstrated with the Lyapunov stability theory based on a new linear matrix inequality (LMI) technique. To extend the validation of the proposed design control for practical purposes, it was tested in a New England system with 39 bus power against random load disturbances. The simulation results confirm the superiority of the proposed SOboSMC over other recent controllers with respect to overshoot and settling time.
  • Publisher: Basel: MDPI AG
  • Language: English
  • Identifier: ISSN: 2076-3417
    EISSN: 2076-3417
    DOI: 10.3390/app11073051
  • Source: ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals
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