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Journal articles on the topic 'High voltage grid'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Dai, Chengao, and Shengkai Yue. "Analysis of an improved three-phase voltage source converter with high-performance operation under unbalanced conditions." Applied and Computational Engineering 9, no. 1 (2023): 55–59. http://dx.doi.org/10.54254/2755-2721/9/20230036.

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The power system is rapidly transforming into a new large-scale distributed power generation model using renewable energy. Grid-connected converters, particularly voltage control compensators like STATCOM, will be crucial to the functioning of this new situation. Voltage source converter (VSC) is one of the most commonly used topologies in grid connection converters. As a distributed power-generating device, VSCs can be utilized as a means of connecting sustainable energy sources to the power grid. The three-phase voltage source currents or voltage ripples may appear in the DC chain. This stud

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2

Zimann, Felipe J., Eduardo V. Stangler, Francisco A. S. Neves, Alessandro L. Batschauer, and Marcello Mezaroba. "Coordinated Control of Active and Reactive Power Compensation for Voltage Regulation with Enhanced Disturbance Rejection Using Repetitive Vector-Control." Energies 13, no. 11 (2020): 2812. http://dx.doi.org/10.3390/en13112812.

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Voltage profile is one of many aspects that affect power quality in low-voltage distribution feeders. Weak grids have a typically high line impedance which results in remarkable voltage drops. Distribution grids generally have a high R/X ratio, which makes voltage regulation with reactive power compensation less effective than in high-voltage grids. Moreover, these networks are more susceptible to unbalance and harmonic voltage disturbances. This paper proposes an enhanced coordinated control of active and reactive power injected in a distribution grid for voltage regulation. Voltage drop miti

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3

Luewattana, Krung, and Aphibal Pruksanubal. "Overvoltage Effects on Ground Grid Systems of Single and Two Neighboring High Voltage Substations." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 6 (2016): 2545. http://dx.doi.org/10.11591/ijece.v6i6.pp2545-2556.

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The power networks with reliable transmission and distribution systems require high voltage substations with effective ground grid systems. Therefore, this study aimed to analyze the effects of overvoltage on ground grid systems within high voltage substations in two cases, including a single substation and the two neighboring substations, by using ATP/EMTP and ANSYS softwares. The simulations were performed to show both graphs and 3D results when the fault current flowed into the ground grids of substations at various positions. In case of the single high voltage substation, the overvoltage w

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4

Li, Yan. "Intelligent Control Technology of Ultra-High Voltage Grid." Journal of Advanced Computational Intelligence and Intelligent Informatics 23, no. 1 (2019): 67–71. http://dx.doi.org/10.20965/jaciii.2019.p0067.

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In order to ensure the stability and economy of ultra-high voltage grid in construction, we need to research the intelligent control method of ultra-high voltage grid. Using current method in ultra-high voltage grid construction, there is a problem of poor stability. Therefore, this paper proposed an intelligent control method of ultra-high voltage grid. This method analyzed the transmission capacity of power grid and electromagnetic loop operation, and used the genetic algorithm to compute the optimization model, finally analyzed the stability of the power frequency voltage completing the int

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Iov, Florin, Weihao Zhao, and Tamas Kerekes. "Robust PLL-Based Grid Synchronization and Frequency Monitoring." Energies 16, no. 19 (2023): 6856. http://dx.doi.org/10.3390/en16196856.

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Nowadays, the penetration of inverter-based energy resources is continuously increasing in low-voltage distribution grids. Their applications cover traditional renewable energy production and energy storage but also new applications such as charging points for electric vehicles, heat pumps, electrolyzers, etc. The power ratings range from a couple of kW to hundreds of kW. Utilities have, in the last few years, reported more challenges regarding power quality in distribution grids, e.g., high harmonic content, high unbalances, large voltage and frequency excursions, etc. Phase-Lock-Loop (PLL) a

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Luewattana, Krung, and Aphibal Pruksanubal. "Overvoltage Effects on Ground Grid Systems of Single and Two Neighboring High Voltage Substations." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 6 (2016): 2545. http://dx.doi.org/10.11591/ijece.v6i6.11651.

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<p><span style="font-family: Times New Roman;">The power networks<em> </em>with reliable transmission and distribution systems require high voltage substations with effective ground grid systems. Therefore, this study aimed to analyze the effects of overvoltage on ground grid systems within high voltage substations in two cases, including a single substation and the two neighboring substations, by using ATP/EMTP and ANSYS softwares. The simulations were performed to show both graphs and 3D results when the fault current flowed into the ground grids of substations at var

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7

Gangikunta, Manohar, Pakkirayya B, A. S. S. Murugan, and Rajib Kumar Kar. "Voltage Source Converter based High Voltage Direct Current Transmission: A Comprehensive Review of Control Strategies, Developments and Trends." E3S Web of Conferences 529 (2024): 02003. http://dx.doi.org/10.1051/e3sconf/202452902003.

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The continuous increasing progress in high power and high voltage semiconductor devices leads to have a substantial impact on optimization and effective management of electric grids. These developments have great influence on High Voltage Direct Current (HVDC) and flexible ac controller technologies. This article gives an outline of the innovations in Voltage source Converter (VSC) based HVDC technology. VSC based HVDC technology offers decent advantages which includes interconnection of asynchronous networks, bulk power transmission and voltage stability support. VSC based HVDC technology nic

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Xie, Shijun, Yu Zhang, Huaiyuan Yang, et al. "Application of Integrated Optical Electric-Field Sensor on the Measurements of Transient Voltages in AC High-Voltage Power Grids." Applied Sciences 9, no. 9 (2019): 1951. http://dx.doi.org/10.3390/app9091951.

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Transient voltages in the power grid are the key for the fault analysis of a power grid, optimized insulation design, and the standardization of the high-voltage testing method. The traditional measuring equipment, based on electrical engineering, normally has a limited bandwidth and response speed, which are also featured by a huge size and heavy weight. In this paper, an integrated optical electric-field sensor based on the Pockels effect was developed and applied to measure the transient voltages on the high-voltage conductors in a non-contact measuring mode. The measuring system has a resp

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9

Daoud, Ahmed A., Ahmed F. Abouzeid, and Sobhy S. Dessouky. "Offshore wind power integration to support weak grid voltage for industrial loads using VSC-HVDC transmission system." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 3 (2021): 1876. http://dx.doi.org/10.11591/ijece.v11i3.pp1876-1885.

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This paper investigates the integration of the offshore wind power plant into the grid using voltage source converter high-voltage direct current (VSC-HVDC). The paper proposes both offshore and onshore converter stations control to support voltage variation in grid. Heavy industrial loads result in a weak grid. In this paper, the effect on industrial loads by the grid strength is shown. Then the paper proposes a solution for the grid voltage support for industrial loads connected to weak grids. The results showed that the increase of grid voltage from 0.7 pu to 1 pu at full load condition tha

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Ahmed, A. Daoud, F. Abouzeid Ahmed, and F. Abouzeid Ahmed. "Offshore wind power integration to support weak grid voltage for industrial loads using VSC-HVDC transmission system." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 3 (2021): 1876–85. https://doi.org/10.11591/ijece.v11i3.pp1876-1885.

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This paper investigates the integration of the offshore wind power plant into the grid using voltage source converter high-voltage direct current (VSCHVDC). The paper proposes both offshore and onshore converter stations control to support voltage variation in grid. Heavy industrial loads result in a weak grid. In this paper, the effect on industrial loads by the grid strength is shown. Then the paper proposes a solution for the grid voltage support for industrial loads connected to weak grids. The results showed that the increase of grid voltage from 0.7 pu to 1 pu at full load condition that

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11

Kangarlu, Mohammad Farhadi, Mohammad Bayzidi Torshakaan, and Yousef Neyshabouri. "A Transformerless DSTATCOM Based on Cross-Switched Multilevel Inverter for Grid Voltage Regulation." International Journal on Electrical Engineering and Informatics 12, no. 3 (2020): 398–417. http://dx.doi.org/10.15676/ijeei.2020.12.3.1.

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In this paper, a transformerless distribution static synchronous compensator (DSTATCOM) based on the cross-switched (CS) multilevel inverter (CSMLI) is introduced. In comparison with the well-known cascaded h-bridge (CHB) topology, CS inverter produces higher number of voltage levels using fewer number of power components. Since CS inverter produces ac side voltage with high quality and has the ability to work at high voltage and power levels, the proposed CS-DSTATCOM is directly connected to the distribution grid without the need for a transformer. In the proposed CS-DSTATCOM, all the dc sour

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12

Müller, Ulf Philipp, Birgit Schachler, Malte Scharf, et al. "Integrated Techno-Economic Power System Planning of Transmission and Distribution Grids." Energies 12, no. 11 (2019): 2091. http://dx.doi.org/10.3390/en12112091.

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The energy transition towards renewable and more distributed power production triggers the need for grid and storage expansion on all voltage levels. Today’s power system planning focuses on certain voltage levels or spatial resolutions. In this work we present an open source software tool eGo which is able to optimize grid and storage expansion throughout all voltage levels in a developed top-down approach. Operation and investment costs are minimized by applying a multi-period linear optimal power flow considering the grid infrastructure of the extra-high and high-voltage (380 to 110 kV) lev

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Tran, Kim, and Kim. "Frequency Adaptive Current Control Scheme for Grid-connected Inverter without Grid Voltage Sensors Based on Gradient Steepest Descent Method." Energies 12, no. 22 (2019): 4266. http://dx.doi.org/10.3390/en12224266.

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This paper presents a frequency adaptive grid voltage sensorless control scheme of a grid-connected inductive–capacitive–inductive (LCL)-filtered inverter, which is based on an adaptive current controller and a grid voltage observer. The frequency adaptive current controller is constructed by a full-state feedback regulator with the augmentation of multiple control terms to restrain not only the inherent resonance phenomenon that is caused by LCL filter, but also current harmonic distortions from an adverse grid environment. The number of required sensing devices is minimized in the proposed s

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14

Roncero-Sánchez, Pedro, Alfonso Parreño Torres, Javier Vázquez, Francisco Javier López-Alcolea, Emilio J. Molina-Martínez, and Felix Garcia-Torres. "Multiterminal HVDC System with Power Quality Enhancement." Energies 14, no. 5 (2021): 1306. http://dx.doi.org/10.3390/en14051306.

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High-Voltage Direct Current (HVDC) systems are a feasible solution that allows the transmission of energy between several power networks. As a consequence of the use of HVDC systems, renewable energy sources can be integrated more easily into distribution grids and smart grids. Furthermore, HVDC systems can contribute to improving the power quality (PQ) of the grids to which they are connected. This paper presents a multiterminal HVDC system that not only controls the flows of active power between four different networks, but also compensates imbalances and harmonics in the grid currents to ma

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15

Sui, Tao, Zhen Kong, Wei Wei Kong, Wu Lu, and Yang Guo. "Application of Average Filtering Algorithm in High Voltage Grid for Pulse Shocking." Applied Mechanics and Materials 494-495 (February 2014): 1833–36. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.1833.

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In order to increase the performance of the current high voltage grid for pulse shocking, which is imperfection in controlling the intensity of pulse shock in the high voltages, a set of perimeter prevention high-voltage grid system is design with using the programmable logic controller (PLC). In this design, the average filtering algorithm is applied for promoting the accuracy of the intensity. The feasibility of the algorithm is verified through simulation. In this paper, the algorithm and the experimental procedure are mainly discusses, and so get some result about the changeable resistor,

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16

Chaurase, Payal, and Pankaj Ramtekkar. "A new design of control & power management strategies of hybrid ac-dc microgrids toward high power quality." Journal of Physics: Conference Series 2089, no. 1 (2021): 012036. http://dx.doi.org/10.1088/1742-6596/2089/1/012036.

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Abstract The micro grid idea provides for the lack of several reversing switches to unitary AC-DC grid that enables connection and charges (loads) to the electrical systems with changeable regenerative AC and CC sources. Safe operation and gadget safety involve digital integration with utilities/grid through power converters. Enhanced client reliability, decreased input losses, local voltages are supported, and waste heat efficiency increased, voltage drop or interruptible supply of electricity can be customized to satisfy their unique customer demands. Work at present Analyses the performance

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17

Lu, Kunpeng, Wei Tang, Bo Zhang, et al. "Requirement Analysis of Wind Turbine High Voltage Ride-through Capability Detection and Simulation." Journal of Physics: Conference Series 2166, no. 1 (2022): 012053. http://dx.doi.org/10.1088/1742-6596/2166/1/012053.

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Abstract With the number of wind farms connected to the power system increasing rapidly, the impact of wind power generation system on power grid system stability is becoming increasingly prominent. Especially when the power grid has transient fault, there will be problems such as reverse power flow, large-area power failure of wind farm and so on. This will directly lead to the power system instability and seriously affect the power grid security and stability. Especially in the stage of voltage recovery after the fault is eliminated, the low-voltage fault of the power grid might lead to a sh

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18

Guerrero, Manuel, Raul Baños, Consolación Gil, Francisco G. Montoya, and Alfredo Alcayde. "Evolutionary Algorithms for Community Detection in Continental-Scale High-Voltage Transmission Grids." Symmetry 11, no. 12 (2019): 1472. http://dx.doi.org/10.3390/sym11121472.

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Symmetry is a key concept in the study of power systems, not only because the admittance and Jacobian matrices used in power flow analysis are symmetrical, but because some previous studies have shown that in some real-world power grids there are complex symmetries. In order to investigate the topological characteristics of power grids, this paper proposes the use of evolutionary algorithms for community detection using modularity density measures on networks representing supergrids in order to discover densely connected structures. Two evolutionary approaches (generational genetic algorithm,

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19

Meinecke, Steffen, Džanan Sarajlić, Simon Ruben Drauz, et al. "SimBench—A Benchmark Dataset of Electric Power Systems to Compare Innovative Solutions Based on Power Flow Analysis." Energies 13, no. 12 (2020): 3290. http://dx.doi.org/10.3390/en13123290.

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Publicly accessible, elaborated grid datasets, i.e., benchmark grids, are well suited to publish and compare methods or study results. Similarly, developing innovative tools and algorithms in the fields of grid planning and grid operation is based on grid datasets. Therefore, a general methodology to generate benchmark datasets and its voltage level dependent implementation is described in this paper. As a result, SimBench, a comprehensive dataset for the low, medium, high and extra-high voltage level, is presented. Besides grids that can be combined across several voltage levels, the dataset

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20

Ye, Shangxing, Hongyi Liu, Xueying Liu, and Youhua Jiang. "Research on Urban High Voltage Power Network Harmonic Transfer and Emission Level." Journal of Physics: Conference Series 2399, no. 1 (2022): 012027. http://dx.doi.org/10.1088/1742-6596/2399/1/012027.

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Abstract With the rapid growth of urban power transmission cable scale, the harmonic pollution in the high-voltage power grid is more transmitted to other power grids of different voltage levels, which makes the harmonic transmission more complicated, increases the harmonic emission level, and makes it difficult to quantitatively analyze and study the allowable value of users’ electrical pollution emission. Therefore, in this paper, by establishing the harmonic conduction model of the urban high-voltage power grid and considering the equivalent circuit of transformer and transmission cable in

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21

Pan, Guangsheng, Xi Huang, and Jie Liu. "System Control Strategies for Renewable Energy-Integrating Grids via Voltage Source Converter-Based High-Voltage Direct Current Technology." Actuators 13, no. 12 (2024): 505. https://doi.org/10.3390/act13120505.

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The worldwide promotion of carbon-neutral policies is leading to a continuously growing percentage of electricity being derived from renewable energy, which makes it feasible to design power systems composed of 100% renewable energy in the future. The question of how to realize stable transmission for 100% renewable energy-integrating grids under different operating conditions needs to receive more attention. Voltage source converter-based high-voltage direct current (VSC-HVDC) technology is one of the prospective solutions for large-scale renewable energy integration due to its unique dominan

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Kuzmina, I. A. "Feasibility Assessment of Urban Electricity Distribution Networks Transition to the Voltage Level of 20 kV." Mechanical Engineering and Computer Science, no. 12 (January 4, 2018): 57–65. http://dx.doi.org/10.24108/1217.0001358.

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The article gives a feasibility assessment for increasing a voltage level of the urban electricity distribution networks from 6 and 10 kV to 20 kV.The emphasis is on the urban electricity distribution network in Moscow. It is noted that by now the reliability, efficiency and automation indicators of Moscow electrical grids are substantially lower than those of Europe, America, etc. The electrical grids in Moscow have a high wear and tear of equipment, a historically developed non-optimal structure, and a high loading level. In recent years, the situation has been significantly improved due to

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23

Raghavendra, P., Ramakrishna S. S. Nuvvula, Polamarasetty P. Kumar, Dattatraya N. Gaonkar, A. Sathoshakumar, and Baseem Khan. "Voltage Profile Analysis in Smart Grids Using Online Estimation Algorithm." Journal of Electrical and Computer Engineering 2022 (October 10, 2022): 1–9. http://dx.doi.org/10.1155/2022/9921724.

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Voltage rise is the main obstacle to prevent the increase of distributed generators (DGs) in low-voltage (LV) distribution grids. In order to maintain the power quality and voltage levels within the tolerance limit, new measurement techniques and intelligent devices along with digital communications should be used for better utilization of the distribution grid. This paper presents a real-time sensor-based online voltage profile estimation technique and coordinated Volt/VAR control in smart grids with distributed generator interconnection. An algorithm is developed for voltage profile estimati

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Nainar, Karthikeyan, Catalin Iosif Ciontea, Kamal Shahid, et al. "Experimental Validation and Deployment of Observability Applications for Monitoring of Low-Voltage Distribution Grids." Sensors 21, no. 17 (2021): 5770. http://dx.doi.org/10.3390/s21175770.

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Future distribution grids will be subjected to fluctuations in voltages and power flows due to the presence of renewable sources with intermittent power generation. The advanced smart metering infrastructure (AMI) enables the distribution system operators (DSOs) to measure and analyze electrical quantities such as voltages, currents and power at each customer connection point. Various smart grid applications can make use of the AMI data either in offline or close to real-time mode to assess the grid voltage conditions and estimate losses in the lines/cables. The outputs of these applications c

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Pinto, Jorge, Adriano Carvalho, Agostinho Rocha, and Armando Araújo. "Comparison of DSOGI-Based PLL for Phase Estimation in Three-Phase Weak Grids." Electricity 2, no. 3 (2021): 244–70. http://dx.doi.org/10.3390/electricity2030015.

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The paper presents a summary of different double second-order generalized integrator (DSOGI)-based phase-locked loop (PLL) algorithms for synchronization with three-phase weak grids. The different methods are compared through simulation under a variety of grid conditions, such as unbalanced phase voltages, high low-order harmonics distortion, frequency steps, phase jumps, and voltage sags. Following the simulation results, the three methods that have shown the overall best results are compared through an experimental setup for further results validation under operation with a voltage-source co

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Liu, Baojin, Bing Yu, and Feng Zheng. "Grid Current Distortion Suppression Based on Harmonic Voltage Feedforward for Grid-Forming Inverters." Electronics 14, no. 5 (2025): 839. https://doi.org/10.3390/electronics14050839.

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A grid-forming converter (GFM) controls power output by adjusting the phase angle and amplitude of its output voltage, providing voltage and frequency support to the power system and effectively enhancing system stability. However, it has limitations in current control, influencing the current only indirectly through voltage regulation, which results in weaker control over current waveform quality. In the context of a large number of renewable energy generation units being connected to the grid, harmonics in the grid voltage can lead to excessively high harmonic content in the grid current, ex

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Madhukar Haval, Abhijeet, and Taruna Chopra. "Adaptive Voltage Regulation Scheme for Improved Power Management in Metropolitan." E3S Web of Conferences 540 (2024): 08013. http://dx.doi.org/10.1051/e3sconf/202454008013.

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The problem of voltage regulation in metropolitan cities has been well studied. There exist different models to handle this problem, which consider the available voltage and number of connections in the part of city as the key in voltage regulation. However, the methods suffer to achieve higher performance in voltage regulation. To handle this issue, an Adaptive Voltage Regulation Scheme (AVRS) is presented in this article. The proposed method considers the number of high load connections, number of low load connections, no of commercial connections, no of household connections and so on. Base

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Yan, Tao, Teng Li, and Zerong Liang. "Research on the Weak-Bus Voltage Support Effect of Energy Storage Type Intelligent Soft Open Point." Energies 17, no. 23 (2024): 5815. http://dx.doi.org/10.3390/en17235815.

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With the integration of a high proportion of distributed generators (DGs), the imbalance between source and load power intensifies, causing the distribution grid to become ‘weak’ during certain periods, which can easily lead to voltage over-limit for the distribution grid. Due to the coupling of active and reactive power in weak power grids for voltage regulation, the effectiveness of single reactive voltage regulation for voltage over-limit is not satisfactory. This paper uses an Energy Storage type Intelligent Soft Open Point (E-SOP) with grid-forming controlled energy storage to simultaneou

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29

veut, Djimbi Makoundi Christian Dieu le, Wan Shuting, Zhang Bolin, and Djimbi Makoundi daivy Dieu le veut. "Design of a Variable Voltage Buck-Boost DC-DC Converter Based on PWM for Micro-Grid Load." Saudi Journal of Engineering and Technology 9, no. 09 (2024): 451–58. http://dx.doi.org/10.36348/sjet.2024.v09i09.004.

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This paper proposes a new high-gain Buck-Boost DC-DC converter, specifically designed for micro-grid applications where efficient voltage and power management is crucial. Traditional boost converters, such as those with switched inductors or capacitors, face limitations in voltage gain due to extreme operating cycles, leading to issues like reverse recovery, high conduction losses, and electromagnetic interference. Isolated converters, such as fly-back or push-pull converters, while effective at overcoming these constraints, introduce losses due to leakage inductance and overvoltage. With the

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Ji, Shi Qi, Xiao Jie Shi, Zhe Yu Zhang, Wen Chao Cao, and Fred Wang. "Benefits of High Voltage SiC Applications in Medium Voltage Power Distribution Grids." Materials Science Forum 924 (June 2018): 875–78. http://dx.doi.org/10.4028/www.scientific.net/msf.924.875.

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This paper evaluates potential benefits of high voltage (HV) SiC devices in medium voltage (MV) distribution grids. The MV microgrid, that HV SiC devices can benefit most, is selected as the “killer application” and focused in this paper. The design and simulation are carried out to compare Si-and SiC-based grid interface converters for the quantitative benefit assessment both at converter level and system level. The SiC-based converter has significant benefits in weight and size, and shows enhanced performance and functionality on power quality, system stability and low voltage ride through (

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Luna, Massimiliano, Antonino Sferlazza, Angelo Accetta, Maria Carmela Di Piazza, Giuseppe La Tona, and Marcello Pucci. "Modeling and Experimental Validation of a Voltage-Controlled Split-Pi Converter Interfacing a High-Voltage ESS with a DC Microgrid." Energies 16, no. 4 (2023): 1612. http://dx.doi.org/10.3390/en16041612.

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The Split-pi converter can suitably interface an energy storage system (ESS) with a DC microgrid when galvanic isolation is not needed. Usually, the ESS voltage is lower than the grid-side voltage. However, limitations in terms of the ESS current make the use of a high-voltage ESS unavoidable when high power levels are required. In such cases, the ESS voltage can be higher than the microgrid voltage, especially with low microgrid voltages such as 48 V. Despite its bidirectionality and symmetry, the Split-pi exhibits a completely different dynamic behavior if its input and output ports are exch

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Niu, Xiaobing, Runze Qiu, Shenglin Liu, and Xin Chow. "DC-Link Voltage Fluctuation Suppression Method for Modular Multilevel Converter Based on Common-Mode Voltage and Circulating Current Coupling Injection under Unbalanced Grid Voltage." Electronics 13, no. 17 (2024): 3379. http://dx.doi.org/10.3390/electronics13173379.

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Grid voltage imbalance conditions often occur. Modular multilevel rectifiers (MMCs) have high DC-link voltage fluctuation under an unbalanced grid, which affects the normal operation of DC-side equipment. To suppress voltage fluctuation under an unbalanced grid, a coupling injection strategy composed of third zero-sequence common-mode voltage (TZCV) and secondary circulating current (SCC) was designed in this paper. In this paper, we calculated the coupling time-domain expression of the TZCV and SCC under an unbalanced grid voltage. Then, the influence of an SCC and TZCV coupling injection on

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Jung, Jiwon, Moo-Young Lee, Jae-Gu Hwang, et al. "Low-energy electron beam generation in inductively coupled plasma via a DC biased grid." Plasma Sources Science and Technology 31, no. 2 (2022): 025002. http://dx.doi.org/10.1088/1361-6595/ac43c2.

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Abstract Low-energy electron beam generation using a DC biased grid was investigated in an inductively coupled plasma (ICP). The electron beam was measured in argon gas at various pressures, ICP source powers, and substrate voltages (V sub). At a low ICP source power (50 W), an electron beam was generated even at small values of V sub (10 V), however at a high ICP source power (200 W), an electron beam was only generated when a higher voltage (30 V) was applied due to the short sheath thickness on the grid surface. The sheath on the grid surface is an important factor for generating electron b

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Tran, Thuy Vi, and Kyeong-Hwa Kim. "Grid Voltage Estimation Based on Integral Resonant Current Controller for LCL-Filtered Grid-Connected Inverter without AC Voltage Sensors." Electronics 9, no. 12 (2020): 2051. http://dx.doi.org/10.3390/electronics9122051.

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A high reliability of a grid-connected inverter (GCI) system at reasonable cost is a critical requirement for maximizing renewable energy potential in the electrical energy market. Several grid voltage sensorless control approaches have been investigated not only to eliminate the vulnerability of faulty sensors but also to further reduce the GCI commercial price. In this paper, a frequency adaptive integral-resonant full-state feedback current control scheme with the facilitation of a full-state observer is adopted for a grid-connected inductive–capacitive–inductive (LCL) filtered inverter wit

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Almeida, Dilini, Jagadeesh Pasupuleti, and Janaka Ekanayake. "Performance evaluation of PV penetration at different locations in a LV distribution network connected with an off-load tap changing transformer." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 2 (2021): 987–93. https://doi.org/10.11591/ijeecs.v21.i2.pp987-993.

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Solar photovoltaic (PV) power generation has shown a worldwide remarkable growth in recent years. In order to achieve the increasing energy demand, a large number of residential PV units are connected to the low voltage (LV) distribution networks. However, high integration of solar PV could cause negative impacts on distribution grids leading to violations of limits and standards. The voltage rise has been recognized as one of the major implications of increased PV integration, which could significantly restrict the capacity of the distribution network to support higher PV penetration levels.

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Thadkapally, Karunakar, Francisxavier Thomas Josh, Jeyaraj Jency Joseph, and Jayaraj Jayakumar. "The hybrid solar energized back-to-back high voltage direct current modular converter for distributed networks." Bulletin of Electrical Engineering and Informatics 13, no. 1 (2024): 88–97. http://dx.doi.org/10.11591/eei.v13i1.5771.

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High voltage direct current (HVDC) transmission is flexible towards the power control (produced by solar or wind) and can be transported over thousands of kilo meters with minimal losses over the high voltage alternative current (HVAC). It allows solar power to be integrated into the current power grid on a large scale. The author view in this article aims at providing an overview of methods used to integrate HVDC and solar systems. MATLAB/Simulink is used to simulate the solar power integration with HVDC transmission link. This article emphaises solar energy and grid integration, which result

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Rodríguez, Elso, Nimrod Vázquez, Jaime Arau, Rene Osorio, Fernando Medina, and Claudia Hernández. "Central Energy Storage System to Reduce the Harmful Effects of PV Systems under a High Penetration Scenario." Electronics 10, no. 19 (2021): 2418. http://dx.doi.org/10.3390/electronics10192418.

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Photovoltaic (PV) systems are used to generate electricity and they are considered less aggressive in their environmental impact. These systems require no further maintenance once they are installed, they do not pollute the environment and their average lifespan is high. These are the reasons why they are considered a good alternative for electricity generation. However, PV systems have different challenges to solve when they are connected to low voltage distribution grids and one of them is related to the power quality when there is a high penetration of PV systems, when voltage variations us

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Postolati, V., Е. Bycova, V. Suslov, L. Timashova, Yu. Shakarian, and S. Kareva. "Controlled Compact High Voltage Power Lines." Problemele Energeticii Regionale 1(30) (April 15, 2016): 1–13. https://doi.org/10.5281/zenodo.1208395.

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Nowadays modern overhead transmission lines (OHL) constructions having several significant differences from conventional ones are being used in power grids more and more widely. Implementation of compact overhead lines equipped with FACTS devices, including phase angle regulator settings (compact controlled OHL), appears to be one of the most effective ways of power grid development. Compact controlled AC HV OHL represent a new generation of power transmission lines embodying recent advanced achievements in design solutions, including towers and insulation, together with interconnection scheme

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Wang, Shihao, Xujing Tang, Xionghang Liu, and Chen Xu. "Research on Low Voltage Ride through Control of a Marine Photovoltaic Grid-Connected System Based on a Super Capacitor." Energies 15, no. 3 (2022): 1020. http://dx.doi.org/10.3390/en15031020.

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With the increase of photovoltaic penetration rate, the fluctuation of photovoltaic power generation affects the reliability of ship power grids. Marine PV grid-connected systems with high penetration rates should generally have a low voltage ride-through capability. In the present paper, a strategy in which super capacitors are applied for energy storage in a marine photovoltaic grid-connected system is proposed, and an inverter adopts independent decoupling control of active and reactive currents to improve the LVRT capability of photovoltaic grid-connected systems. In addition, a comprehens

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Ahmad, Ibrahim, Ghaeth Fandi, Zdenek Muller, and Josef Tlusty. "Voltage Quality and Power Factor Improvement in Smart Grids Using Controlled DG Units." Energies 12, no. 18 (2019): 3433. http://dx.doi.org/10.3390/en12183433.

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The increased penetration of renewable energy sources in the electrical grid, due to the rapid increase of power demand and the need of diverse energy sources, has made distributed generation (DG) units an essential part of the modern electrical grid. The integration of many DG units in smart grids requires control and coordination between them, and the grid to maximize the benefits of the DG units. Smart grids and modern electronic devices require high standards of power quality, especially voltage quality. In this paper, a new methodology is presented to improve the voltage quality and power

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Punith Kumar Y. "A New Ultra-Gain Step-Up Converter with Continuous Input Current for Micro-Grid Applications." Journal of Electrical Systems 20, no. 10s (2024): 2314–25. http://dx.doi.org/10.52783/jes.5578.

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For green energy micro-grid applications, it is crucial to have a step-up converter that can produce a wide range of voltages. This converter is necessary to match the low voltage output of the micro-grid with the DC-bus voltage and must have continuous input current. A new ultra-gain step-up converter with continuous input current, is proposed to achieve this objective. The proposed converter is a non-coupled inductor-based, non-isolated boost converter with continuous input current which is suitable to operate at a high voltage suitable for green energy based micro-grid applications. The pro

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Sirisha, Bogimi, and Saieni Akhilesh. "High efficient and high gain boost converter with soft switching capability connected to grid using dq axis current control." Bulletin of Electrical Engineering and Informatics 11, no. 2 (2022): 624–35. http://dx.doi.org/10.11591/eei.v11i2.3358.

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Renewable sources like solar PV arrays are generally operated at low voltages due to safety issues. For applications such as grid connected systems, it requires boosting to high voltage which leads to reduction in efficiency. To solve this, a new high gain and efficient boost converter which is a combination of buffer capacitor, passive clamp recovery circuit to restore leakage energy in coupled inductor is presented. The magnetic field of the linked inductor stores the energy obtained from the supply. A passive clamp network recovers the energy that is stored in the leakage inductance, enhanc

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Bogimi, Sirisha, and Akhilesh Saieni. "High efficient and high gain boost converter with soft switching capability connected to grid using dq axis current control." Bulletin of Electrical Engineering and Informatics 11, no. 2 (2022): 624–35. https://doi.org/10.11591/eei.v11i2.3358.

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Renewable sources like solar PV arrays are generally operated at low voltages due to safety issues. For applications such as grid connected systems, it requires boosting to high voltage which leads to reduction in efficiency. To solve this, a new high gain and efficient boost converter which is a combination of buffer capacitor, passive clamp recovery circuit to restore leakage energy in coupled inductor is presented. The magnetic field of the linked inductor stores the energy obtained from the supply. A passive clamp network recovers the energy that is stored in the leakage inductance, enhanc

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So, Jihun, Hyun Shin, Thai Nguyen Tran, and Yeong-Jun Choi. "Decentralized Cooperative Active Power Control for Small-Scale Grids with High Renewable Penetration through VSC-HVDC." Sustainability 14, no. 15 (2022): 9539. http://dx.doi.org/10.3390/su14159539.

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Rising renewable penetration has accelerated the volatility and instability of the power grid. A small-scale grid is especially vulnerable. Therefore, flexibility and stability enhancement are required for small-scale grids. The interconnection with the large-scale grid through the voltage sourced converter-high voltage direct current (VSC-HVDC) can be a solution to the aforementioned problems. VSC-HVDC can deliver power bidirectionally and change the direction in a short time. Hereby, the cooperative operation of distributed generations (DG) and a large-scale grid through the VSC-HVDC system

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Binkowski, Tomasz. "Fuzzy Logic Based Synchronization Method for Solar Powered High Frequency On-Board Grid." Energies 14, no. 24 (2021): 8194. http://dx.doi.org/10.3390/en14248194.

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This paper proposes a method for synchronizing a grid inverter with the voltage of an on-board high-frequency power grid. The described synchronization method belongs to the adaptive methods, which use fuzzy logic in the process of estimating the fundamental component of the voltage. The synchronization system has been tuned to achieve the primary goal of achieving synchronization in the shortest possible time. This is to allow for the efficient energy fed from photovoltaic sources into the on-board grid at 400 Hz. The proposed method was implemented in the field programmable gate array (FPGA)

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Wang, Yinglong, and Yongjiang Guo. "Low-voltage and high-penetration distributed photovoltaic access control technology based on intelligent measurement." Journal of Physics: Conference Series 2770, no. 1 (2024): 012029. http://dx.doi.org/10.1088/1742-6596/2770/1/012029.

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Abstract This project takes high-penetration distributed photovoltaic access as the background and studies the control method for low voltage and high penetration distributed photovoltaic access. Firstly, by analyzing the measured data of the low-voltage distribution network, the daily load and measured values of the low-voltage distribution network were obtained. On this basis, the topology structure of a high-penetration distributed photovoltaic grid-connected system is studied, and the voltage, current, power, and other parameters of the grid-connected system are obtained. A low-voltage and

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Almeida, Antônio D. D., Bruna S. Gehrke, Nady Rocha, et al. "Single-Phase Rectifier with Cascaded-Transformer to Supply a Three-Phase Induction Motor with Open-End Windings." Eletrônica de Potência 30 (May 27, 2025): e202538. https://doi.org/10.18618/rep.e202538.

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This paper presents a single-phase to three-phase AC-DC-AC step-down converter with a symmetrical DC-link voltage ratio. The proposed converter architecture is well-suited for rural distribution grid applications, where a high-voltage single-phase grid is required to transmit energy over long distances while minimizing conduction losses. The converter consists of two cascaded H-bridge converters connected via transformers and two three-phase inverters supplying an open-end winding induction motor (OEWIM). The level-shifted pulse-width modulation (LSPWM) strategy is employed to synthesize the c

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Swain, Akhyurna, Elmouatamid Abdellatif, Ahmed Mousa, and Philip W. T. Pong. "Sensor Technologies for Transmission and Distribution Systems: A Review of the Latest Developments." Energies 15, no. 19 (2022): 7339. http://dx.doi.org/10.3390/en15197339.

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The transmission and distribution systems are essential in facilitating power flow from the source multiple loads over large distances with high magnitudes of voltages and currents. Hence, the monitoring and control of various components of these structures are crucial. Traditionally, this was implemented by sensing only the grid current and grid voltage parameters through coils, clamps, or instrument transformers. However, these have bulky structures that restrict them to the substation and have installation and maintenance issues due to their direct contact with high voltage conductors. Curr

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Priya, E. Catherine Amala, and G. T. Sundar Rajan. "An improved model of hybrid multi converter used for grid connected applications." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 2 (2019): 860. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp860-867.

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A Hybrid multi converter topology is proposed in this paper, which supplies simultaneous voltage’s for various levels from Renewable energy source. The proposed topology is realized by replacing Multi cuk- buck converter topology. The resultant hybrid multi converter requires less number of switches to operate, as well as various output voltages of different levels without interruption with increased stability. This type of hybrid multi converter with high reliability and high stability are well implemented for loads utilizing various levels of DC voltage. Converter, proposed in this paper is

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Nagaboopathy, Monigaa, Kumudini Devi Raguru Pandu, Ashmitha Selvaraj, and Anbuselvi Shanmugam Velu. "Improved Fault Resilience of GFM-GFL Converters in Ultra-Weak Grids Using Active Disturbance Rejection Control and Virtual Inertia Control." Sustainability 17, no. 14 (2025): 6619. https://doi.org/10.3390/su17146619.

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Enhancing the resilience of renewable energy systems in ultra-weak grids is crucial for promoting sustainable energy adoption and ensuring a reliable power supply during disturbances. Ultra-weak grids characterized by a very low Short-Circuit Ratio, less than 2, and high grid impedance significantly impair voltage and frequency stability, imposing challenging conditions for Inverter-Based Resources. To address these challenges, this paper considers a 110 KVA, three-phase, two-level Voltage Source Converter, interfacing a 700 V DC link to a 415 V AC ultra-weak grid. X/R = 1 is controlled using

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