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1
artículo
Publicado 2019
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In this work three mathematical models of transmission lines are shown, the most used, to simulate electromagnetic transients in power systems. In addition, its main characteristics, advantages and disadvantages are mentioned. Likewise, the algorithms are shown in the form of flow charts for the simulations of the transients. Finally, the results of simulations of maneuvering surges in a single-phase transmission line using the MATLAB software are shown.
2
artículo
Publicado 2019
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In this work three mathematical models of transmission lines are shown, the most used, to simulate electromagnetic transients in power systems. In addition, its main characteristics, advantages and disadvantages are mentioned. Likewise, the algorithms are shown in the form of flow charts for the simulations of the transients. Finally, the results of simulations of maneuvering surges in a single-phase transmission line using the MATLAB software are shown.
3
artículo
Publicado 2016
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This article has the objective to develop the general framework, previous knowledge and the analysis of the more important aspects related to the controversy that presents the collision of rules between a Connection Order, issued by the Osinergmin, and a Contract of the Guaranteed Transmission System, signed by the Peruvian state and a transmission licensee; that indeed present a unique situation in the energetic policy field.
4
artículo
Publicado 2020
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The electric transmission system is the infrastructure that allows the transfer of energy from the production points to the consumption centers. It has the characteristic of regulated natural monopoly. For efficiency and economic equity in the electricity market, it is necessary that both the electrical losses and the costs incurred in the transmission process be properly distributed among all the agents that make use of this system. That is why around the world a series of methodologies have been developed that allow the regulators of the electrical system to set the transmission rates that assure their owners to recover the costs incurred in the construction, operation and maintenance and allow the efficient development of the Long-term network. In this context, this article reviews the different methodologies for assigning electrical losses and transmission costs at national and inter...
5
artículo
Publicado 2025
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The transmission plan includes binding projects approved by the Ministry of Energy and Mines, which must be implemented over a 10-year period to ensure the quality, safety and efficiency of the national electricity system. This planning is carried out within the framework of the state duty to ensure the efficiency and continuity of the electricity supply. This document evaluates the criteria of generality, innovation and consumption to determine whether the transmission plan is a normative or administrative act. The general character of the plan is reviewed in accordance with these criteria, which does not necessarily determine whether it is a rule or an administrative act, since there are acts that have a general character and rules with particular application. The plan is also derived from a law, but requires other acts to be implemented. Finally, the plan is ended by fulfilling its pu...
6
artículo
The Unified power flow controller (UPFC) is the most important contribution of the power electronics in the modern Electrical Power Systems. The UPFC is able to decouple the control of the active and reactive power sent trough the transmission line. This control is performed byinjecting in series with the transmission line a voltage with regulated magnitude and phase, generated by a PWM voltage source inverter (VSI). When the current flow in the line originate in the inverter an active and reactive power. The active part of the power require to be eithersupplied or absorbed by a device, e.g. a second inverter. In this paper, simulation result obtained with a fundamental model of UPFC connected to a simple AC transmission system, and a control system base on "dq" transformation necessary to obtained the P and Q decoupled control ispresented.
7
artículo
Publicado 2020
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The electric transmission system is the infrastructure that allows the transfer of energy from the production points to the consumption centers. It has the characteristic of regulated natural monopoly. For efficiency and economic equity in the electricity market, it is necessary that both the electrical losses and the costs incurred in the transmission process be properly distributed among all the agents that make use of this system. That is why around the world a series of methodologies have been developed that allow the regulators of the electrical system to set the transmission rates that assure their owners to recover the costs incurred in the construction, operation and maintenance and allow the efficient development of the Long-term network. In this context, this article reviews the different methodologies for assigning electrical losses and transmission costs at national and inter...
8
tesis doctoral
Publicado 2021
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One of the main challenges the Peruvian Electric System faces is the coordinated expansion of generation capacity and transmission to supply the demand requirements in the medium and long-term. Likewise, this process occurs in a context in which non-conventional renewable technologies such as solar photovoltaic (PV) and wind have experienced considerable cost reductions, which, added to the short development times that they entail, make them the ideal candidates to carry out the expansion of generation capacity. However, it is found that the country currently lacks the tools to carry out medium and long-term expansion planning considering these new technologies. Thus, this thesis presents 1) a methodology to synthesize hourly time series of solar PV and wind generation anywhere in the country, 2) a technique to reduce (cluster) the dimension of planning problems, and 3) an optimization m...
9
artículo
Publicado 2022
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High penetration of renewable energy sources (RES) leads to new challenges for protection devices. Protection schemes are typically designed according to the dynamic behavior of rotating machines as generation sources, while the RES dynamic response, mainly governed by inverters, is not considered. Consequently, some relevant algorithms of transmission line protection are experiencing challenges because of the fact that magnitude and phase angle comparison, amount of negative-sequence, and short-circuit current level are afected by the RES. Therefore, an in-depth study of this issue is necessary, one which considers the main causes and new methodological criteria solutions. This work presents an extensive literature review of the evaluation of electrical protection performance and the efects of RES connected to a power grid through inverters. Bibliographic data on many representative pub...
10
artículo
Publicado 2023
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The ongoing transformation of electrical power systems highlights the weaknesses of the protection schemes of traditional devices because they are designed and confgured according to traditional characteristics of the system. Therefore, this work proposes a new methodology to study the fault-generated high frequency transient signals in transmission lines through multiresolution analysis. The high frequency components are determined by a new digital fltering technique based on mathematical morphology theory and a spectral energy index. Consequently, wide spectra of signals in the time–frequency domain are obtained. The performance of this method is verifed on an electrical power system modeled in ATP-Draw, where simulation and test signals are developed for diferent locations, fault resistances, inception angles, high frequency noises, sampling frequencies, types of faults, and shapes ...
11
artículo
Publicado 2022
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High penetration of renewable energy sources (RES) leads to new challenges for protection devices. Protection schemes are typically designed according to the dynamic behavior of rotating machines as generation sources, while the RES dynamic response, mainly governed by inverters, is not considered. Consequently, some relevant algorithms of transmission line protection are experiencing challenges because of the fact that magnitude and phase angle com parison, amount of negative-sequence, and short-circuit current level are affected by the RES. Therefore, an in-depth study of this issue is necessary, one which considers the main causes and new methodological criteria solutions. This work presents an extensive literature review of the evaluation of electrical protection performance and the effects of RES connected to a power grid through inverters. Bibliographic data on many representative ...
12
artículo
Publicado 2020
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In the new global and local scenario, the advent of intelligent distribution networks or Smart Grids allows real-time collection of data on the operating status of the electricity grid. Based on this availability of data, it is feasible and convenient to predict consumption in the short term, from a few hours to a week. The hypothesis of the study is that the method used to present time variables to a prediction system of electricity consumption affects the results.
13
artículo
PSS AND IPFC POD controllers coordinated tuning by an Adaptive Genetic Algorithm with Hyper-mutation
Publicado 2018
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Flexible AC transmission systems (FACTS) are a modern technology to increase controllability in power systems. This work presents an analysis of Interline Power Flow Controller (IPFC) which is a FACTS device. This device control and manage power flow in transmission lines. Supplementary damping controller is installed on IPFC Proportional Integral (PI) control. Power Oscillation Damping (POD) and Power System Stabilizers (PSS) contribute to power system stability. This works represents the electric power system and Interline Power Flow Controller FACTS device by a current sensitivity model (CSM). This work focuses on small-signal stability studies using an Adaptive Genetic Algorithm and Hyper-mutation (AGAH) to design simultaneously controller parameters. Adaptive Genetic Algorithm aims to find optimal controller parameters to enhance greatly stability of the power system. This paper con...
14
artículo
Publicado 2015
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This article examines the transformation process undergone by the electrical system in the Paraíba Valley in the state of São Paulo and discusses the possibilities for developing the cities located along the transmission lines between the metropolises of Rio de Janeiro and São Paulo. From the 1930s to the 1950s, the Paraíba Valley went from a region whose electrical sector was fragmented and run by municipal enterprises, to one with an electrical system connected to the system of the Light company, and, finally, from the 1960s, the region began to receive its electricity from state companies. This study traces the trajectory of the electricity sector in this region and examines the relationship between this sector and economic development.
15
artículo
Publicado 2015
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This article discusses the structure of the electricity supply. This system mainly consists of three subsystems: the generation, transmission and distribution of electricity. Each system is comprised of different features like its regulation. Given the above, the author tells us the Peruvian case, on the body called the Committee of Economic Operation of the System (COES).
16
artículo
Publicado 2015
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This article discusses the structure of the electricity supply. This system mainly consists of three subsystems: the generation, transmission and distribution of electricity. Each system is comprised of different features like its regulation. Given the above, the author tells us the Peruvian case, on the body called the Committee of Economic Operation of the System (COES).
17
artículo
Operation is a fundamental process for companies engaged in power transmission, especially when it comes to the operation of power transformers, which are one of the main components of the electric power system and represent a large part of the investment required to implement these systems. To improve the quality of the operation of power transformers and ensure their reliability and safety, it is essential to monitor power supply interruptions and the electrical parameters that comprise them. Therefore, the objective of this research is to improve operating practices to minimize the impact of power supply interruption events on the consumer due to disconnections of 22.9 kV, 60 kV, 138 kV and 550 kV power transformers operated and maintained by ISA REP, one of the largest electric transmission companies in Peru. The results of this study, i.e. the analysis of technical operating indicat...
18
tesis de grado
Publicado 2024
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El presente trabajo de investigación propone la conexión de infraestructura HVDC en parte del Sistema Eléctrico Interconectado Nacional, para mejorar los niveles de tensión en las barras que no cumplan con la Norma Técnica de Calidad de los Servicios Eléctricos (NTCSE). Actualmente, gran parte de las barras de transmisión del SEIN incumplen con la normativa, causando problemas de subtensión y sobretensión a los usuarios, y teniendo que regularizar su porcentaje de variación de la tensión con compensación por energía reactiva. Es por ello, que se propone la conexión de infraestructura HVDC porque permite la transmisión de grandes potencias y elevadas tensiones, con menores pérdidas de energía eléctrica que los sistemas de transmisión en corriente alterna y con mayor estabilidad. Para ello, se realiza un análisis de flujo de potencia del SEIN en el software DIgSILENT Po...
19
artículo
Publicado 2023
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The study proposes the radio link, powered by photovoltaic solar energy, using wireless radios. The system allows the transmission of data for sensors located in high mountains. For the design, the Ubiquiti simulator was used, verifying the coordinates of the radio stations, evaluating the lines of sight between the separate stations. The total distance between Base Station B and Sensor Station S is approximately 23,852 Kilometers, with 04 radio links, in the free 5.8 Ghz band. This system allows a continuous operation of 24 hours with low levels of solar radiation energy, additionally it can support HD, IP video cameras.
20
tesis de grado
Publicado 2023
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El presente trabajo constituye un aporte a la ingeniería civil a través de la optimización del gerenciamiento de los proyectos de construcción de subestaciones eléctricas en el Perú, específicamente en la gestión de riesgos que impactan en el cumplimiento del plazo de los proyectos en mención. Inicialmente se analizó la problemática actual de los proyectos de transmisión de energía eléctrica en el Perú, entre los cuales se tiene la construcción de subestaciones y líneas de transmisión, realizando un análisis de cuáles fueron los riesgos que impactaron en proyectos ya culminados. Asimismo, se identificó cuáles fueron las desviaciones de plazo ocurridas en el histórico de proyectos de construcción de proyectos de transmisión en el país, llegando a la conclusión de que dichas obras tienen una desviación promedio de seis meses fuera de plazo. De igual manera se es...
