Results 1 to 10 of about 136,626 (309)
A New Dual Polarity Direct AC-AC Voltage Regulator Ensuring Voltage Step-Up and Step-Down Capabilities [PDF]
Applied Sciences, 2021 The problem of voltage sag and swell is one of the major reasons for low-quality power in the distribution system. Normally, it results from the system’s faults, including line-to-ground and line-to-line, non-linear characteristics of loads and sources ...
Naveed Ashraf +6 more
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Design of Step Voltage Regulator Based on IGBT
EnergiesThe introduction of distributed generation (DG) into distribution systems is expanding due to carbon neutral policies. DG with intermittent output characteristics brings frequent voltage variations in distribution systems.
Min-Gu Lee +5 more
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Energies, 2023 The voltage in distribution systems is controlled by the under-load tap changer of the substation and the pole transformer of the primary feeders. Recently, as one of the main countermeasures, a step voltage regulator is being introduced to solve voltage
Hyun-ok Lee +3 more
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A High-Efficiency Low-Wearing Hybrid Voltage Regulator for Utility Applications
IEEE Open Journal of Industry Applications, 2023 Step voltage regulator (SVR) has been utilized in power distribution systems for decades as the voltage regulation device. Due to the increasing integration of distributed energy resources, the conventional SVR is severely challenged by the modern power ...
Yafeng Wang, Tiefu Zhao
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IEEE Access, 2021 The South African power distribution network is characterized by long power distribution lines with low short circuit capacity, and when distributed generation is introduced to these lines, voltage magnitudes are severely impacted.
Ndamulelo Tshivhase +2 more
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Fractal and Fractional, 2022 In the literature, all investigations dealing with regulator design in the AVR loop observe the AVR system as a single input single output (SISO) system, where the input is the generator reference voltage, while the output is the generator voltage ...
Sultan Alghamdi +7 more
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Energy Reports, 2023 This paper proposes a coordinated voltage control by three-phase step voltage regulators (3ϕSVRs) and photovoltaic (PV) units with smart inverters. An optimization problem is formulated to improve the voltage profile of distribution networks and reduce ...
Akito Nakadomari +5 more
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Control Method of Step Voltage Regulator on Distribution Lines with Distributed Generation
Energies, 2022 Generally, utilities regulate the voltage on the long power distribution line within a permissible range by using a step voltage regulator (SVR), which is located around the middle of the line and operates according to the condition of the line current ...
Jong-Bin Kim +6 more
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Analysis of step-up transformer tap change on the quantities at the point of connection to transmission grid [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2017 The analysis of a step-up transformer tap change on the quantities at the point of connection to the transmission grid is presented in this paper. The point of connection of generator TENT A6 has been analyzed, and a detailed model of this generator is ...
Đorđević Dragan +3 more
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Micromachines, 2023 A regulator based on a converter with step-down/up characteristics is discussed in this paper, which is suitable for processing energy from a lithium-ion battery pack, where the voltage fluctuates from above or below the nominal value.
Juan Antonio Villanueva-Loredo +3 more
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