Results 1 to 10 of about 11,092 (314)

A harmonic compensation approach for interlinking voltage source converters in hybrid AC-DC microgrids with low switching frequency

open access: diamondCSEE Journal of Power and Energy Systems, 2018
In recent years, the hybrid AC-DC microgrid has been well accepted as it combines the advantages of both AC and DC systems. As the microgrid contains both DC sub-grids and AC sub-grids, interlinking DC-AC converters are essential.
Hao Tian, Xiaohan Wen, Yun Wei Li
doaj   +2 more sources

A Sensorless Rotor Position Detection Method for Permanent Synchronous Motors Based on High-Frequency Square Wave Voltage Signal Injection [PDF]

open access: yesSensors
To address the torque ripple and speed fluctuation issues in high-frequency square-wave injection-based sensorless control of interior permanent magnet synchronous motors (IPMSM) caused by low-order stator current harmonics (primarily the fifth and ...
Anran Song   +3 more
doaj   +2 more sources

Improvement in Harmonic Compensation of a Smart Charger with a Constant DC-Capacitor Voltage-Control-Based Strategy for Electric Vehicles in Single-Phase Three-Wire Distribution Feeders [PDF]

open access: goldEnergies, 2018
This paper presents an improvement in harmonic compensation performance of a previously proposed smart charger (SC) with a constant dc-capacitor voltage-control (CDCVC) strategy for electric vehicles (EVs) in single-phase three-wire distribution feeders (
Kei Nishikawa   +5 more
doaj   +2 more sources

Effective Dead-Time Compensation Using Adaptive Harmonic Compensator

open access: diamondIFAC-PapersOnLine, 2015
Abstract This paper aims at analyzing and compensating the dead-time effects in the vector-controlled AC system. The use of dead-time in power electronics drive systems to prevent a short circuit in the DC link is necessary. However, dead-time can lead to distortion of VSI output voltage and ripple of phase current. It is used a feed-forward approach
Ludek Buchta   +2 more
openalex   +2 more sources

Boost power factor correction converter with adaptive harmonic compensation control

open access: yesIET Power Electronics, 2023
In low‐voltage distribution systems, the increased penetration of power electronic devices leads to the decentralization of harmonic sources, which puts the sensitive loads or communication systems in the risk status. The conventional methods of point‐to‐
Rongfei Zhang   +4 more
doaj   +1 more source

An Inductive Active Filtering Method for Low-Voltage Distribution Networks

open access: yesMachines, 2021
Three-phase unbalanced and nonlinear loads aggravate harmonic problems in low-voltage distribution networks. In this paper, a hybrid inductive and active filter (HIAF) system with a Ddy converter transformer is proposed.
Delu Li   +3 more
doaj   +1 more source

Coordinated Operation of Energy Storage Systems for Distributed Harmonic Compensation in Microgrids

open access: yesEnergies, 2020
Energy storage systems (ESSs) bring various opportunities for a more reliable and flexible operation of microgrids (MGs). Among them, energy arbitrage and ancillary services are the most investigated application of ESSs.
Abbas Marini   +3 more
doaj   +1 more source

New Topology of a Hybrid, Three-Phase, Four-Wire Shunt Active Power Filter

open access: yesEnergies, 2023
With a view to reducing harmonic content in electrical power systems, and, consequently, improving power quality level, filters and other harmonic compensation devices are widely used.
Stefani Freitas   +5 more
doaj   +1 more source

Decoupled and Modular Harmonic Compensation for Multilevel STATCOMs

open access: yesIEEE Transactions on Industrial Electronics, 2014
A modular and decoupled approach to achieve harmonic cancellation in a multilevel Static Compensator (STATCOM) is presented in this paper. This work shows that it is possible to split the compensation tasks depending on the frequency components present on the line current that is intended to be compensated by using the superposition principle and the ...
Javier A. Muñoz   +5 more
openaire   +7 more sources

Imposing fair penalty to the harmonic sources based on the measurement data

open access: yesIET Generation, Transmission & Distribution, 2021
Improving network power quality through harmonic reduction requires recognition of Harmonic Sources (HSs) to drive them to compensate their harmonics. This paper proposes a new method for equitable distribution of the Harmonic Compensation Cost of the ...
Mahdi Tadayon   +3 more
doaj   +1 more source

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