Decentralized model predictive control strategy of a realistic multi power system automatic generation control

Magdy, Gaber; Bakeer, Abualkasim; Shabib, G.; Elbaset, Adel A.; Mitani, Yasunori

doi:10.1109/mepcon.2017.8301183

Cited by 20 publications

(13 citation statements)

References 12 publications

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“…2. The National Energy Control Center (NECC) in Egypt has been advanced a dynamic model of Egyptian LFC in [25]. Therefore, this model will be modified using MATLAB/Simulink by adding high-level RESs integration and the dynamic contribution of the controllable SMES, which represents an auxiliary LFC alongside with the frequency control loops (i.e., primary and secondary frequency controls) for frequency stability analysis.…”

Section: Modelling Of the Epsmentioning

confidence: 99%

Optimized coordinated control of LFC and SMES to enhance frequency stability of a real multi-source power system considering high renewable energy penetration

Magdy

Shabib

Elbaset

et al. 2018

Prot Control Mod Power Syst

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With rapidly growing of Renewable Energy Sources (RESs) in renewable power systems, several disturbances influence on the power systems such as; lack of system inertia that results from replacing the synchronous generators with RESs and frequency/voltage fluctuations that resulting from the intermittent nature of the RESs. Hence, the modern power systems become more susceptible to the system instability than conventional power systems. Therefore, in this study, a new application of Superconducting Magnetic Energy Storage (SMES) (i.e., auxiliary Load Frequency Control (LFC)) has been integrated with the secondary frequency control (i.e., LFC) for frequency stability enhancement of the Egyptian Power System (EPS) due to high RESs penetration. Where, the coordinated control strategy is based on the PI controller that is optimally designed by the Particle Swarm Optimization (PSO) algorithm to minimize the frequency deviations of the EPS. The EPS includes both conventional generation units (i.e., non-reheat, reheat and hydraulic power plants) with inherent nonlinearities, and RESs (i.e., wind and solar energy). System modelling and simulation results are carried out using Matlab/ Simulink® software. The simulation results reveal the robustness of the proposed coordinated control strategy to preserve the system stability of the EPS with high penetration of RESs for different contingencies.

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Section: Modelling Of the Epsmentioning

confidence: 99%

Optimized coordinated control of LFC and SMES to enhance frequency stability of a real multi-source power system considering high renewable energy penetration

Magdy

Shabib

Elbaset

et al. 2018

Prot Control Mod Power Syst

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“…The National Energy Control Center (NECC) in Egypt has implemented an advanced dynamic model of LFC for the EPS, as shown in [22]. Moreover, this model was rebuilt using Matlab/Simulink, with some manipulation, as reported in [23].…”

Section: Ii1 Dynamic Model Of the Eps And State Equationsmentioning

confidence: 99%

A Novel Design of Decentralized LFC to Enhance Frequency Stability of Egypt Power System Including Wind Farms

Magdy

Shabib

Elbaset

et al. 2018

IRECON

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This paper presents a real hybrid power system in Egypt, which includes both conventional generation units and Renewable Energy Sources (RESs) for studying the Load Frequency Control (LFC) problem. The conventional generation system in the Egyptian Power System (EPS) is decomposed into three dynamic subsystems; non-reheat, reheat and hydro power plants. Moreover, real wind speed data extracted from Zafarana location in Egypt is used for achieving a realistic wind power study. Each subsystem of the EPS has its own characteristics compared to the others. Moreover, the physical constraints of the governors and turbines such as Generation Rate Constraints (GRCs) of power plants and speed governor dead band (i.e., backlash) are taken into consideration. Therefore, this paper proposes a decentralized controller for each subsystem independently, to guarantee the stability of the overall closed-loop system. Hence, an optimal PID controller-based Particle Swarm Optimization (PSO) algorithm is proposed for every subsystem separately to regulate the frequency and track the load demands of the EPS. The performance of the proposed decentralized controller of each subsystem is compared to the centralized one under different operational scenarios. The EPS is tested using the nonlinear simulation by Matlab/SIMULINK. The obtained results reveal the superior robustness of the proposed decentralized controller against different load disturbance patterns, real wind power fluctuations and EPS uncertainties. Nomenclature Pn1Nominal rated Power output for the non-reheat plant (MW pu)∆fThe frequency deviation of the EPS (Hz) Pn2Nominal rated Power output for the reheat G. Magdy et al.

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“…The National Energy Control Center (NECC) in Egypt has advanced a dynamic model of LFC for the EPS in [15]. The National Energy Control Center (NECC) in Egypt estimates the system parameters values which used in the nonlinear model of EPS and independent from the system operation as in Table 1 [16]. However, the other parameters vary with time are depending on the operating conditions.…”

Section: Eps Descriptionmentioning

confidence: 99%

“…The nominal parameters values are summarized in Table 2. The dynamic equations of EPS are given in [16]. PID is a proportional, Integral and derivative controller which is one of the earliest industrial controllers.…”

Section: Eps Descriptionmentioning

confidence: 99%

Frequency stability and digital protection coordination of multi-source power system

Mohamed¹,

Magdy²,

Shabib³

et al. 2018

IJSGCE

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Nowadays, the interconnection issues of different power plants are interested and must be highlighted, such as the frequency stability and voltage stability, which are a basic principle in the power system operation. Many reasons such as, load shedding, load restoring, and short circuits cause large frequency fluctuations, which threaten the system security and could lead to complete blackouts as well as damages to the system equipment. Hence, this paper proposes a coordination of Load Frequency Control (LFC), which uses an optimized PID controller-based new Moth Swarm algorithm (MSA) and digital under/over frequency relay for a realistic multi-source power system considering different cases study of load shedding and restoring. The digital relay will be energized by the data conversion system under normal and fault conditions. The presented digital frequency relay will cover both over and under frequency conditions. To validate the effect of the proposed coordination, the Egyptian Power System (EPS), which contains three dynamics subsystems, hydro, reheat, and non-reheat power plants, was investigated for the MATLAB/SIMULINK considering the effect of system nonlinearity. The obtained results stated the effectiveness of the proposed coordination to maintain the power system frequency stability and security. Furthermore, the superiority of the under/over digital frequency relay has been approved.

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Decentralized model predictive control strategy of a realistic multi power system automatic generation control

Cited by 20 publications

References 12 publications

Optimized coordinated control of LFC and SMES to enhance frequency stability of a real multi-source power system considering high renewable energy penetration

Optimized coordinated control of LFC and SMES to enhance frequency stability of a real multi-source power system considering high renewable energy penetration

A Novel Design of Decentralized LFC to Enhance Frequency Stability of Egypt Power System Including Wind Farms

Frequency stability and digital protection coordination of multi-source power system

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