Secondary and Tertiary Voltage Control of a Multi-Region Power System

Abdalla, Omar H.; Fayek, Hady H.; Ghany, Abdel Ghany Mohamed Abdel

doi:10.3390/electricity1010003

Cited by 12 publications

(6 citation statements)

References 28 publications

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“…The optimal allocation and sizing of energy storage stations will also drive the power system to achieve further objectives such as equal loading between transmission lines [29]. Since PM is fast enough, it can be applied for optimal controller design in the power systems [30]. The normalization process can be applied to better achieve the multi-objective optimal operation of power systems such as maximum reactive power reserve with minimum power losses [31]; this may keep the balance between the optimal management of active and reactive power in the power grid.…”

Section: Discussionmentioning

confidence: 99%

Pharmacophore-Modeling-Based Optimal Placement and Sizing of Large-Scale Energy Storage Stations in a Power System including Wind Farms

Fayek,

Rusu

2023

Applied Sciences

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The world is targeting fully sustainable electricity by 2050. Energy storage systems have the biggest role to play in the 100% renewable energy scenario. This paper presents an optimal method for energy storage sizing and allocation in a power system including a share of wind farms. The power system, which is used as a test system, is a modified version of the IEEE 39 bus system. The optimization is applied using novel pharmacophore modeling (PM), which is compared to state-of-the-art techniques. The objective of the optimization is to minimize the costs of power losses, peak demand and voltage deviation. The PM optimization is applied using two methods, namely, weighting factor and normalization. The optimization and simulation are applied in the DIgSILENT power factory software application. The results show that normalization of PM optimization drives the power system to less cost in terms of total power losses by up to 29% and voltage deviation by up to 4% and better covers peak demand than state-of-the-art optimization techniques.

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Section: Discussionmentioning

confidence: 99%

Pharmacophore-Modeling-Based Optimal Placement and Sizing of Large-Scale Energy Storage Stations in a Power System including Wind Farms

Fayek,

Rusu

2023

Applied Sciences

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“…These nodes are here called Controlled Nodes (CNs), because are used to provide feedback to the control system, thus being conceptually similar to the actual PNs. Several methods can be used to this aim: use of the electrical distance concept [7], use of short circuit power [8] [9], use of sensitivity among nodes [10], mixed methods [11]. Once the CNs have been selected, the overall S matrix can be reduced by taking into account only the nodes that either pertain to the CN set or have an RPR connected, leading to the definition of the Sred matrix, whose dimension is mxt.…”

Section: B Application To the Transmission System's Svcmentioning

confidence: 99%

Reactive Power Resources Management in a Voltage Regulation Architecture Based on Decoupling Control

Sulligoi

Vicenzutti

Chiandone

et al. 2021

2021 AEIT International Annual Conference (AEIT)

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The actions for limiting the climate change are significantly affecting the electrical power system. Indeed, the increase in renewable power sources and the progressive shut off of coal-fired power plants are transitioning the generation from a centralized to a decentralized paradigm. The latter may cause issues in a grid that was originally designed taking as granted the presence of several big power plants to be used as actuators for the system control. Considering voltage control, the actual control architecture is based on a hierarchical structure applied to a given set of rigidly subdivided control areas. Although such architecture is currently capable of maintain voltage control on the grid, the increase in converter interfaced generators (due to renewables exploitation) and the decrease of the buses short circuit powers (due to high power plants shut-off) may decrease its effectiveness in the future. To this aim, in this paper a coordinated decoupling voltage control is proposed, capable of using all the available reactive power sources on the grid as actuators. The issue of controlling a system with a variable number of actuators (due to generators connection and disconnection) is taken into account, proposing a suitable solution for avoiding transients during the switch between controllers having different output dimension. A brief discussion about communication (among actuators and controller) performances required for implementing the proposed control in the power system is also given.

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“…Automatic voltage regulation (AVR) is highly important in a power system to avoid under-and over-voltage occurrences [6]. AVR offers optimal power system operation by minimizing active and reactive power losses.…”

Section: Introductionmentioning

confidence: 99%

Novel Combined Load Frequency Control and Automatic Voltage Regulation of a 100% Sustainable Energy Interconnected Microgrids

Fayek

Rusu

2022

Sustainability

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Frequency and voltage deviations are two main problems in microgrids, especially with the increase in the penetration level of renewable energies. This paper presents novel techniques to apply combined the load frequency control and automatic voltage regulation of two interconnected microgrids. The two microgrids are operated by solar energy and bioenergy technologies and include energy-storage facilities. The control is applied using a novel accelerating PID controller (PIDA), which is compared to state-of-the-art control schemes. The controllers are designed using a new doctor and patient optimization technique (DPO), which is compared to state-of-the-art techniques. The combined design of load frequency controllers and automatic voltage regulators is also compared to a standalone design. The comparisons are carried out by testing the system performance at each operation condition in addition to indicators such as integral absolute error for frequency and voltage and integral time absolute error for frequency and voltage. The results show that a combined DPO–PIDA design of LFC–AVR schemes for fully sustainable microgrids has better performance than other standalone designs and other control and optimization alternatives.

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Secondary and Tertiary Voltage Control of a Multi-Region Power System

Cited by 12 publications

References 28 publications

Pharmacophore-Modeling-Based Optimal Placement and Sizing of Large-Scale Energy Storage Stations in a Power System including Wind Farms

Pharmacophore-Modeling-Based Optimal Placement and Sizing of Large-Scale Energy Storage Stations in a Power System including Wind Farms

Reactive Power Resources Management in a Voltage Regulation Architecture Based on Decoupling Control

Novel Combined Load Frequency Control and Automatic Voltage Regulation of a 100% Sustainable Energy Interconnected Microgrids

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