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Harmonic influence analysis of unified power flow controller based on modular multilevel converter
Journal of Modern Power Systems and Clean Energy, 2016 The unified power flow controller (UPFC) based on modular multilevel converter (MMC) is the most creative flexible ac transmission system (FACTS) device.
Yubo Yuan +5 more
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Вестник Самарского государственного технического университета. Серия: Технические науки, 2021 The existing calculation methods in various sources represent rectifier installations as sources of higher harmonics. In this case, the current value of the primary winding of the transformer in the form of rectangles is decomposed into a Fourier series ...
Vyacheslav S. Osipov
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Measuring Harmonics With Inductive Voltage Transformers in Presence of Subharmonics [PDF]
IEEE Transactions on Instrumentation and Measurement, 2021 The measurement of harmonics is one of the key tasks in modern power systems, performed basically for power quality assessment, verification of planning levels compliance, immunity and compatibility purposes, and so on. Especially at medium voltage (MV) and high voltage (HV) levels, harmonics are always measured through voltage and current transformers
Gabriella Crotti +3 more
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The Effects of Harmonics on Voltage Stability
IEEJ Transactions on Power and Energy, 2002 Demand for electrical energy has been increasing by the time as related to both technological developments and increase in population. It is necessary to enhance the quality of the electrical energy, especially supplied one. With considering voltage stability of power system, which includes nonlinear loads, during the planning, operating, and ...
Gülez, Kayhan +3 more
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Interleaved Pulse Width Modulation Based on Modified Carrier in Parallel Operation
IEEE Access, 2021 An interleaved pulse width modulation (PWM) can be employed in a parallel operation of three-phase converters because the interleaved PWM increases the equivalent switching frequency and significantly enhances the output current harmonics.
Hyun-Sam Jung
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Coordinated control for harmonic mitigation of parallel voltage-source inverters
CES Transactions on Electrical Machines and Systems, 2018 The increasing use of power electronic devices can deteriorate the power quality by introducing voltage and current harmonics. In islanded microgrids, the presence of nonlinear loads can distort the point of common coupling (PCC) voltage, while the dead ...
Yang Qi +3 more
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An improved digital phase locked loop against adverse grid conditions
Energy Reports, 2022 The phase-locked loop (PLL) is an essential synchronization technique to ensure stable operation and control of grid-connected converters. Nevertheless, under actual conditions, the grid voltage is often influenced by harmonics and frequency variation ...
Jiaqi Yu +5 more
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Digital Current-Control Schemes [PDF]
, 2009 The paper is about comparing the performance of digital signal processor-based current controllers for three-phase active power filters. The wide use of nonlinear loads, such as front-end rectifiers connected to the power distribution systems for dc ...
Limongi, Leonardo +3 more
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Effect of winding harmonics on the asynchronous torque of a single-phase line start permanant-magnet motor [PDF]
, 2005 This paper presents an analytical method for calculating the effect of winding harmonics on the asynchronous torque of a single-phase line-start permanent-magnet motor.
McGilp, M.I. +5 more
core +7 more sources
Design and implementation of a modified fourier analysis harmonic current computation technique for power active filters using DSPs [PDF]
, 2001 The design and implementation of a harmonic current computation technique based on a modified Fourier analysis, suitable for active power filters incorporating DSPs is presented.
El-Habrouk, M +3 more
core +1 more source