Robust decentralised load frequency control for interconnected time delay power systems using sliding mode techniques

Onyeka, Adrian E.; Yan, Xiangwu; Mao, Zehui; Zhang, Qingling

doi:10.1049/iet-cta.2019.0809

Cited by 44 publications

(25 citation statements)

References 79 publications

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“…The extensive observer is implemented to a large degree of states and disturbance estimation. This way leads to enhancements in tracking of non‐linear and dynamic parameters and disturbances 31 . To confirm decayed‐error convergence, Hurwitz methodology is applied to select the parameters with uncertainties.…”

Section: Proposed Jaya‐based Sliding‐mode Techniquementioning

confidence: 99%

Enhancement of tidal generators by superconducting energy storage and Jaya‐based sliding‐mode controller

Othman

2020

Int J Energy Res

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This article presents a novel control technique of Jaya-based super-sliding controller that is applied on superconducting magnetic energy storage system (SCMES). The SCMES will be integrated to operate with tidal turbine generators (TTGs). The penetration of TTGs has recently grown due to distributed generation contributions to the energy sector. To alleviate the potential system instability due to TTG dynamic performance, SCMES is connected to TTG to support the dynamic operational conditions. SCMES is implemented to act quickly during both cases of power generation and absorption, so it can realize any required mismatch between the supply and load power at dynamic transient periods. To enhance such capability, this article proposes the application of Jaya-based super-sliding control technique to control and tune the system dynamic gains. The proposed technique implements incorporated cooperative algorithms using enhanced Jaya competitive algorithm and super-sliding method to facilitate the exchange of energy between the SCMES, the TTG, and the power network. It allows smooth dynamic performance, power quality enhancement, and robust dynamic reference tracking. Jaya-based super-sliding controller is developed and proposed for accurate and reliable control and tunning of system parameters. The proposed controller ensures the superb performance of the synergy of SCMESs and TTGs. Digital simulations have validated the effectiveness of the proposed system with the optimal dynamic parameters and minimization of the global control error.

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Section: Proposed Jaya‐based Sliding‐mode Techniquementioning

confidence: 99%

Enhancement of tidal generators by superconducting energy storage and Jaya‐based sliding‐mode controller

Othman

2020

Int J Energy Res

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“…To tackle this, the energy storage units are proposed in power system to balance instantaneous mismatch between generation and demand. Inevitably, the introduction of wind power generation and energy storage units greatly increase difficulty and complexity of power systems LFC [7,8].…”

Section: Introductionmentioning

confidence: 99%

Robust load frequency control for networked power system with renewable energy via fractional‐order global sliding mode control

Sun

et al. 2021

IET Renewable Power Gen

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Owing to random load changes and transmission time delays in interconnected power systems with renewable energy, the load frequency control scheme has become one of the main methods to keep stability and security of power systems. To relieve communication burden and increase network utilisation, an adaptive event-triggered scheme is explored. Then, a new fractional-order global sliding mode control scheme comprising the fractional-order term in the sliding surface is adopted to improve robustness of load frequency control. The fractional-order term generates a new degree of freedom and more adjustable parameters to improve control performance. Furthermore, the Markov theory is applied in the modelling process to better describe the uncertainty of parameters and external disturbances. The stability and stabilisation criteria for multi-area power systems load frequency control are put forward by employing the improved Lyapunov function and integral inequalities with auxiliary functions. Finally, two simulation examples containing a two-area power system and modified IEEE 39-bus New England test power system with three wind farms are presented to investigate the effectiveness of the proposed method. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…In order to solve this problem, the control scheme given in [28][29][30] is proposed to regulate the frequency deviation of the LSPS in the presence of communication delays and sudden load change. In [31], the LFC of the LSPS with nonlinear perturbations and time-varying delays are proposed using SMC. In [32], the sliding mode LFC is designed for the LSPS with time-delay and load disturbance.…”

Section: Introductionmentioning

confidence: 99%

“…e sliding mode LFC strategy is suggested for the LSPS with time-delay and significant wind power penetration [33]. However, these SMC approaches are developed based on first-order time derivative [31][32][33]. In addition, the first-order SMC provides low accuracies due to chattering phenomenon in the control input.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Integral Second‐Order Sliding Mode Control Design for Load Frequency Control of Large‐Scale Power System with Communication Delays

et al. 2021

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Nowadays, the power systems are getting more and more complicated because of the delays introduced by the communication networks. The existence of the delays usually leads to the degradation and/or instability of power system performance. On account of this point, the traditional load frequency control (LFC) approach for power system sketches a destabilizing impact and an unacceptable system performance. Therefore, this paper proposes a new LFC based on adaptive integral second-order sliding mode control (AISOSMC) approach for the large-scale power system with communication delays (LSPSwCD). First, a new linear matrix inequality is derived to ensure the stability of whole power systems using Lyapunov stability theory. Second, an AISOSMC law is designed to ensure the finite time reachability of the system states. To the best of our knowledge, this is the first time the AISOSMC is designed for LFC of the LSPSwCD. In addition, the report of testing results presents that the suggested LFC based on AISOSMC can not only decrease effectively the frequency variation but also make successfully less in mount of power oscillation/fluctuation in tie-line exchange.

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Robust decentralised load frequency control for interconnected time delay power systems using sliding mode techniques

Cited by 44 publications

References 79 publications

Enhancement of tidal generators by superconducting energy storage and Jaya‐based sliding‐mode controller

Enhancement of tidal generators by superconducting energy storage and Jaya‐based sliding‐mode controller

Robust load frequency control for networked power system with renewable energy via fractional‐order global sliding mode control

Adaptive Integral Second‐Order Sliding Mode Control Design for Load Frequency Control of Large‐Scale Power System with Communication Delays

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