Results 11 to 20 of about 3,063 (167)
IET Power Electronics, EarlyView., 2022 Abstract In this paper, a reduced switch count single‐phase hybrid multilevel inverter (MLI) is presented. Level generation unit (LGU) and polarity changing unit (PCU) are the two parts of the presented topology which are connected in series. Other advantages of the proposed topology include the reduced switch count, higher level generation with ...
Mohammad Wasiq +6 more
wiley +1 more source
IET Power Electronics, EarlyView., 2023 This paper proposes a new Double T‐type H‐bridge (DTH) module configuration that can produce 9, 13, 17, 19, 21, and 25 levels using reduced components. Abstract Renewable energy sources are subject to input source uncertainties, which can negatively impact output voltage THD.
Omid Zolfagharian +2 more
wiley +1 more source
IET Power Electronics, EarlyView., 2023 This article presents a Fifteen‐level inverter topology that has a lesser number of switches (12) and can accommodate isolated DC sources. The total harmonic elimination (THD) of the proposed topology using genetic algorithm is within the IEEE 519 standards. Further, the fifteen‐level inverter is implemented in Hardware and firing pulses were generated
Yogesh Joshi +4 more
wiley +1 more source
Transient Stability Constrained Optimal Power Flow with FACTS and HVDC [PDF]
Journal of Electrical and Electronics Engineering, 2021 In power system, the study of optimal power flow (OPF) with transient stability constrained (TSC) of the mixed AC/DC networks is a big and celebrated challenging optimization problem. Because, of its effort and high complexity in its solution, this paper
AYACHI Bilel, BOUKADOUM Ahcene
doaj
Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable
Energies, 2021 The calculation of the continuous allowable current of an underground cable is determined by various characteristics. To calculate the allowable current in cables with alternating magnetic fields such as AC, special phenomena such as the proximity effect
Kyu-hoon Park, Il Kwon, Bang-wook Lee
doaj +1 more source
Vegetable oil based liquid nanocomposite dielectric
South African Journal of Science, 2013 Physically smaller dielectric materials would improve the optimisation of space for power systems. Development of nanotechnology provides an effective way to improve the performances of insulating oils used in power system applications.
Leon Chetty +2 more
doaj +1 more source
Reducing Operational Costs of Offshore HVDC Energy Export Systems Through Optimized Maintenance
Energies, 2020 For the grid connection of offshore wind farms today, in many cases a high-voltage direct current (HVDC) connection to the shore is implemented. The scheduled maintenance of the offshore and onshore HVDC stations makes up a significant part of the ...
Jan Frederick Unnewehr +4 more
doaj +1 more source
Subsynchronous Oscillation Features and Control Measures for Wind Power Influx Area near HVDC
Zhongguo dianli, 2020 The power electronic devices which are widely used in wind power influx area, especially near the HVDC area, can easily produce a large number of subsynchronous harmonic.
Shengli WANG, Gang XU
doaj +1 more source
Optimal PMU Placement Considering with HVDC Links and Their Voltage Stability Requirements [PDF]
AUT Journal of Electrical Engineering, 2019 In wide area measurement systems, PMUs are the main component measuring real time synchronized data from different buses. Installation of PMUs at all buses is a primary way to provide full observability of the power network.
Milad Dalali, Hosein Kazemi Karegar
doaj +1 more source
Market Integration of HVDC Lines: Internalizing HVDC Losses in Market Clearing [PDF]
IEEE Transactions on Power Systems, 2020 Moving towards regional Supergrids, an increasing number of interconnections are formed by High Voltage Direct Current (HVDC) lines. Currently, in most regions, HVDC losses are not considered in market operations, resulting in additional costs for Transmission System Operators (TSOs).
Andrea Tosatto +2 more
openaire +3 more sources