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Mohamed Abbas, Mohammed A. Alshehri and Abdulwasa Bakr Barnawi
Active power losses have the potential to affect the distribution of power flows along transmission lines as well as the mix of energy used throughout power networks. Grey wolf optimization algorithms (GWOs) are used in electrical power systems to reduce...
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Daniela Patricia Bohórquez-Álvarez, Karen Dayanna Niño-Perdomo and Oscar Danilo Montoya
This paper addresses the problem concerning the efficient minimization of power losses in asymmetric distribution grids from the perspective of convex optimization. This research?s main objective is to propose an approximation optimization model to reduc...
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Oleksandr Plakhtii,Volodymyr Nerubatskyi,Nadiia Karpenko,Denys Hordiienko,Olha Butova,Hryhorii Khoruzhevskyi
Pág. 36 - 44
The traction electric drives for electric rolling stock of alternating current employ the diode and thyristor rectifiers that predetermine a series of shortcomings. These include the significant emission of reactive power and higher harmonics of currents...
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N. Mbuli, A. Dyantyi, J.H.C. Pretorius
Transmission interconnecting lines (called interconnectors in this study) are built to facilitate the exchange of active and reactive power between two areas of a network. Step-up and step-down transformers are required at the ends of the interconnector ...
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Serhii Litkovets
Pág. 6 - 16
The configuration and the principle of operation of the static thyristor compensator of reactive power with the forced commutation and voltage addition for networks with a compensated neutral have been considered. The integrated indicators of the compens...
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Oleksandr Plakhtii,Volodymyr Nerubatskyi,Dmytro Sushko,Igor Ryshchenko,Vladyslav Tsybulnyk,Denys Hordiienko
Pág. 6 - 14
In order to minimize the reactive power and higher harmonics of currents, as well as to improve the electromagnetic compatibility of electrical traction networks and systems of railroad automation, modern electric rolling stock of alternating current emp...
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O. L. Marenych
Pág. 172 - 174
The research to propose methods of determination of the load factor, at which it is advisable to switch off one of two parallel working power feeding transformers in order to reduce the losses of active energy in transformers, has been carried out.
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Famous O. Igbinovia, Ghaeth Fandi, Ibrahim Ahmad, Zdenek Muller and Josef Tlusty
Installing a synchronous condenser (SC) onto an electricity grid can assist in the areas of reactive power needs, short-circuit strength, and, consequently, system inertia and guarantees better dynamic voltage recovery. This paper summarizes the practica...
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Sheng-Yu Tseng and Hung-Yuan Wang
This paper presents a power system using a high step-up converter for dc load applications. The high step-up converter adopts a boost converter with interleaved mode and a coupled inductor to raise its powering ability and increase its step-up voltage ra...
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Qiu-Yu Lu, Wei Hu, Le Zheng, Yong Min, Miao Li, Xiao-Ping Li, Wei-Chun Ge and Zhi-Ming Wang
Automatic Generation Control (AGC) and Automatic Voltage Control (AVC) are key approaches to frequency and voltage regulation in power systems. However, based on the assumption of decoupling of active and reactive power control, the existing AGC and AVC ...
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Hyoung-Jong Ahn, Young-Jun Park, Su-Chul Kim and Chanho Choi
Recent carbon neutrality policies have led to active research in the agricultural tractor sector to replace internal combustion engines, making it imperative to minimize power losses to improve efficiency. Dual-clutch transmissions (DCTs) have been emplo...
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Martin M. Sánchez-Mora, David Lionel Bernal-Romero, Oscar Danilo Montoya, Walter M. Villa-Acevedo and Jesús M. López-Lezama
The Optimal Reactive Power Dispatch (ORPD) problem consists of finding the optimal settings of reactive power resources within a network, usually with the aim of minimizing active power losses. The ORPD is a nonlinear and nonconvex optimization problem t...
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Oscar Danilo Montoya, Jose Eduardo Fuentes, Francisco David Moya, José Ángel Barrios and Harold R. Chamorro
The problem of the optimal siting and placement of static compensates (STATCOMs) in power systems is addressed in this paper from an exact mathematical optimization point of view. A mixed-integer nonlinear programming model to present the problem was dev...
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Kuichao Ma, Jiangsheng Zhu, Mohsen Soltani, Amin Hajizadeh and Zhe Chen
For offshore wind farms, the power loss caused by the wake effect is large due to the large capacity of the wind turbine. At the same time, the operating environment of the offshore wind farm is very harsh, and the cost of maintenance is higher than that...
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Luis Fernando Grisales-Noreña, Daniel Gonzalez Montoya and Carlos Andres Ramos-Paja
The optimal location and sizing of distributed generation is a suitable option for improving the operation of electric systems. This paper proposes a parallel implementation of the Population-Based Incremental Learning (PBIL) algorithm to locate distribu...
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Ryuto Shigenobu, Mitsunaga Kinjo, Paras Mandal, Abdul Motin Howlader and Tomonobu Senjyu
In order to solve urgent energy and environmental problems, it is essential to carry out high installation of distributed generation using renewable energy sources (RESs) and environmentally-friendly storage technologies. However, a high penetration of R...
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Cheng-Tao Tsai, Chih-Lung Shen and Jye-Chau Su
In this paper, a power supply system for hybrid renewable energy conversion is proposed, which can process PV (photovoltaic) power and wind-turbine energy simultaneously for step-down voltage and high current applications. It is a dual-input converter an...
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Piyapath Siratarnsophon, Vinicius C. Cunha, Nicholas G. Barry and Surya Santoso
The capability of routing power from one phase to another, interphase power flow (IPPF) control, has the potential to improve power systems efficiency, stability, and operation. To date, existing works on IPPF control focus on unbalanced compensation usi...
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Prajjwal Gautam, Prasanna Piya and Rajesh Karki
Stochastic failures in a distribution network result in different reliability events, such as voltage sags and momentary and sustained interruptions, causing significant financial losses for many customers. Strategic utilization of energy storage system ...
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