Under voltage load shedding and penetration of renewable energy sources in distribution systems: a review

Sharman, Sundarajoo; Soomro, Dur Muhammad

doi:10.1080/02286203.2022.2143191

Cited by 9 publications

(6 citation statements)

References 128 publications

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“…The second stage is the under-voltage objective function, which has a lesser negative effect compared to over-voltage. However, excessive under-voltage can lead to power supply outages [65]. 3.…”

Section: 12mentioning

confidence: 99%

“…Case 3: The original system augmented with a set of shunt capacitors and renewable distributed generators, with varying generated power values due to weather changes. The generator values are taken from [9] at buses 24 (347), 23 (247), 32 (56), 15 (181), 37 (309), 28 (65), 19 (375), 35 (224), 31 (45), 14 (307), 27 (109), and 29 (234). Case 4: The system from Case 3 optimized with the optimal values of TCSC, estimated using (HSSA-GOFMS) to enhance its performance.…”

Section: Analysis Of Under and Over Voltage Issues In A Weak Distribu...mentioning

confidence: 99%

“…The second stage is the under‐voltage objective function, which has a lesser negative effect compared to over‐voltage. However, excessive under‐voltage can lead to power supply outages [65]. The last stage is the objective function of minimizing energy losses, aiming to minimize the installation cost of the TSCS (presumably a component of the system) for economic reasons.…”

Section: Problem Descriptionmentioning

confidence: 99%

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Metaheuristic‐based graded objective function strategy for optimal thyristor‐controlled series capacitors estimation in weak distribution systems with uncertain distributed generation

Mohamed,

Kamel,

Wulfran

2024

IET Generation Trans & Dist

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This study proposes an optimal approach for enhancing the quality of a weak electrical power distribution system by utilizing thyristor‐controlled series capacitors (TCSC). The proposed approach considers various system components, including shunt capacitors and distributed generators that rely on renewable energy sources, which are characterized by uncertainty due to changing weather conditions. The proposed system maximizes the benefits of these components by updating its parameters to improve the distribution power system's quality under all operating conditions, which change due to the varying energy generated by the distributed generators and load changes. The optimal TCSC values are calculated for all operating conditions using the Hyper‐Spherical Search with graded objective functions management strategy (HSSA‐GOFMS) algorithm. The GOFMS converts all restrictions into objective functions with limits and prioritizes the search for objectives according to a sequential system of priorities. This strategy prevents the possibility of non‐convergence. The results demonstrate the effectiveness of the proposed approach in improving the performance quality of a weak electrical distribution system. The proposed strategy achieves the target voltage level limits within nominal values, even with the interference of the system with generators distributed at variable power levels. Furthermore, the proposed approach enhances the performance quality of the system under a wide range of load changes.

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Section: 12mentioning

confidence: 99%

Section: Analysis Of Under and Over Voltage Issues In A Weak Distribu...mentioning

confidence: 99%

Section: Problem Descriptionmentioning

confidence: 99%

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Metaheuristic‐based graded objective function strategy for optimal thyristor‐controlled series capacitors estimation in weak distribution systems with uncertain distributed generation

Mohamed,

Kamel,

Wulfran

2024

IET Generation Trans & Dist

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“…Otherwise, the ESs could be used to decentralize battery rather than reduce ESS needs. Recent literature reviews of µG control and management algorithms can be found in [86][87][88][89][90][91][92][93][94][95]. Nevertheless, solutions designed for 3Ø-µGs are not always applicable to 1Ø-µGs.…”

Section: Difficulties With Pq In 1ø-µgsmentioning

confidence: 99%

Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review

Alhaiz,

Alsafran,

Almarhoon

2023

Energies

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Renewable distributed generators (RDGs) have made inroads in recent power systems owing to the environmental effect of traditional generators and their high consumption of electric energy. The widespread use of RDGs has been a recent trend in numerous nations. The integration complexity and the intermittent nature of RDGs can undermine the security and stability of microgrids (µGs). In order to guarantee the effectiveness, dependability, and quality of the electricity delivered, appropriate control methods are necessary. RDGs are being included in single-phase microgrids (1Ø-µGs) to generate energy closer to the user. The creation of low-voltage µGs allows for increased energy efficiency and improved electrical supply dependability. Nevertheless, the combined power pumped by DGs might create power quality (PQ) difficulties, especially during off-grid operations. The three biggest problems with PQ are reactive-power swapping, voltage and frequency (VαF) variations, and current and voltage (IαV) harmonic falsification associated with 1Ø-µGs; these conditions may affect the operation of µGs. The designed and implemented (primary–secondary control systems) in RDGs are the prevalent strategy discussed in the literature for mitigating these PQ difficulties. Furthermore, emerging grid innovations like the electrical spring offer viable alternatives that might reduce some problems through decentralized operation. Although several research studies have addressed PQ concerns in 3Ø-µGs, not all of these solutions are immediately applicable to their 1Ø equivalents. In this paper, the state of the art and a performance comparison of several PQ enhancement strategies of µGs is discussed. Additionally, the primary difficulties and several PQ approach tactics are highlighted. All vital features from high-quality published articles and new dimensions in this field are presented for mitigating PQ difficulties in 1Ø-µGs.

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“…As power systems evolve to incorporate more renewable energy sources, they face new challenges in maintaining grid stability and reliability, especially during critical situations such as black start events and load shedding [1]. The inherent variability of renewable sources, such as solar power, complicates the grid's ability to quickly and efficiently recover from outages.…”

Section: Introductionmentioning

confidence: 99%

Novel Hierarchical Energy Management System for Enhanced Black Start Capabilities at Distribution and Transmission Networks

Colak,

Abouyehia,

Ahmed

2024

Energies

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A novel energy management system featuring a unique framework involving multiple hierarchical controllers at the distribution and transmission network levels is proposed. The unique objective function of this energy management system is designed to enhance system inertia during black start and optimise load shedding. The objective function further aims to increase reliance on renewable energy sources, prioritising solar power along with battery and fuel cell technologies. This work delves deeply into the dynamics of multi-area power networks, where some areas possess black start capabilities (BSAs) while others do not (NBSAs). The proposed energy management system specifically explores the complex interplay between these black start capabilities and the hierarchical load restoration order. During grid blackouts, the systems located in BSA areas are tasked with first restoring essential loads in their own regions before extending aid to the adjacent NBSA areas, taking into account factors such as their available reserved power and geographical proximity. This work is extended to analyse complex multi-area power network architectures. This extended analysis provides invaluable insights for enhancing power restoration processes and facilitating the large-scale integration of sustainable energy solutions in complex systems. The proposed energy management system is validated using the IEEE 39-Bus network, which consists of ten distinct areas, each differing in their black start capabilities. The results demonstrate the superiority of the proposed system.

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Under voltage load shedding and penetration of renewable energy sources in distribution systems: a review

Cited by 9 publications

References 128 publications

Metaheuristic‐based graded objective function strategy for optimal thyristor‐controlled series capacitors estimation in weak distribution systems with uncertain distributed generation

Metaheuristic‐based graded objective function strategy for optimal thyristor‐controlled series capacitors estimation in weak distribution systems with uncertain distributed generation

Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review

Novel Hierarchical Energy Management System for Enhanced Black Start Capabilities at Distribution and Transmission Networks

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