Journal ArticleDOI
Coordination Between OLTC and SVC for Voltage Regulation in Unbalanced Distribution System Distributed Generation
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TLDR
In this paper, a two-stage approach for solving the optimal voltage regulation problem in unbalanced radial distribution system in the presence of photovoltaic (PV) generation is presented.Abstract:
This paper presents a two-stage approach for solving the optimal voltage regulation problem in unbalanced radial distribution system in the presence of photovoltaic (PV) generation. The on-load tap changer (OLTC) and static VAr compensator (SVC) have been considered as the voltage control devices in this work. The formulated voltage control problem is a mixed-integer nonlinear programming problem which remains unsolved even after 8 h due to its computational burden. However, the proposed two-stage approach can solve this problem in less than 10 min. The feasibility of the proposed approach has been demonstrated on a modified IEEE 123-bus radial distribution system.read more
Citations
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Journal ArticleDOI
Review of control strategies for voltage regulation of the smart distribution network with high penetration of renewable distributed generation
Nasif Mahmud,Ahmad Zahedi +1 more
TL;DR: In this paper, the authors present a detailed review of the control strategies that are being utilized to mitigate voltage regulation challenges when increased amount of renewable DGs are connected within the distribution network.
Journal ArticleDOI
Coordinated Control Method of Voltage and Reactive Power for Active Distribution Networks Based on Soft Open Point
TL;DR: In this article, a coordinated voltage regulation method based on soft open point (SOP) was proposed for active distribution networks (ADNs) to minimize operation costs and eliminate voltage violations of ADNs.
Journal ArticleDOI
A review of high PV penetrations in LV distribution networks: Present status, impacts and mitigation measures
M. Mejbaul Haque,Peter Wolfs +1 more
TL;DR: In this paper, the authors provide an extensive review of the present status, impacts and technical challenges of PV penetration in low voltage (LV) distribution networks and provide a framework that systematically explores the full range of technical methods and limitations for PV impact mitigation.
Journal ArticleDOI
Distributed Generation Hosting Capacity Evaluation for Distribution Systems Considering the Robust Optimal Operation of OLTC and SVC
TL;DR: In this paper, the authors proposed an MHC evaluation method while considering the robust optimal operation of on load tap changers (OLTCs) and static var compensators (SVCs) in the uncertain context of DG power outputs and load consumptions.
Journal ArticleDOI
Impact of distributed generation on protection and voltage regulation of distribution systems: A review
Seyed-Ehsan Razavi,Ehsan Rahimi,Mohammad Sadegh Javadi,Ali Esmaeel Nezhad,Mohamed Lotfi,Miadreza Shafie-khah,Joao P. S. Catalao +6 more
TL;DR: This paper provides a comprehensive review of different types of DG and investigates the newly emerging challenges arising in the presence of DG in electrical grids.
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TL;DR: In this paper, the authors present an approximate method of analysis Voltage Drop Line Impedance K Factors Uniformly Distributed Loads Lumping Loads in Geometric Configurations.
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Hybrid scheduling for the parallel solution of linear systems
TL;DR: This work considers the problem of designing a dynamic scheduling strategy that takes into account both workload and memory information in the context of the parallel multifrontal factorization and shows that a new scheduling algorithm significantly improves both the memory behaviour and the factorization time.
Journal ArticleDOI
Summary of Distributed Resources Impact on Power Delivery Systems
TL;DR: Several system issues which may be encountered as DR penetrates into distribution systems are discussed, including vulnerability and overvoltages due to islanding and coordination with reclosing, system restoration and network issues.