Results 11 to 20 of about 57,605 (331)

Research on Wind Turbine Converter Control Based on Resonant Sliding Film Controller [PDF]

open access: yesE3S Web of Conferences, 2021
A resonant sliding mode control strategy based on the resonant sliding film surface is proposed to control the turbine-side converter of the wind turbine so that the wind turbine can be connected to the grid smoothly under the condition of unbalanced ...
Wen-kuan XU, You-peng ZHANG
doaj   +1 more source

A modified energy management scheme to support phase balancing in grid interfaced photovoltaic/fuel cell system

open access: yesAin Shams Engineering Journal, 2021
This paper presents improved energy management for grid-inverter of a hybrid photovoltaic (PV)/fuel cell (FC) energy system with unbalanced sensitive loads.
Mustafa İnci, Mehmet Selim Aygen
doaj   +1 more source

Stability and power quality control of parallel inverters in weak current network [PDF]

open access: yes电力工程技术, 2022
In the new energy power generation system,the inverter is connected to the grid in parallel,which expands the grid capacity. In addition,due to the existence of grid impedance,the stability of the inverter is reduced and the difficulty of power quality ...
ZHANG Cheng   +5 more
doaj   +1 more source

A compound control strategy of three‐phase Vienna rectifier under unbalanced grid voltage

open access: yesIET Power Electronics, 2021
When traditional finite‐set predictive power control is applied to Vienna rectifier, the input current will produce a large number of third harmonics under unbalanced power network, which will seriously affect the normal operation of Vienna rectifier ...
Xingtian Feng   +4 more
doaj   +1 more source

Control of Grid-Following Inverters Under Unbalanced Grid Conditions

open access: yesIEEE Transactions on Energy Conversion, 2020
This paper proposes a new control scheme to eliminate the 3rd harmonic in the output currents of grid-following inverters under unbalanced grid conditions. Unbalanced grids adversely affect the performance of grid-following inverters due to the oscillations appearing on the DC-link voltage with a frequency twice the line frequency.
Seyed Fariborz Zarei   +5 more
openaire   +2 more sources

Control strategy of the modular multilevel matrix converter under unbalanced grid condition

open access: yes电力工程技术, 2023
Modular multilevel matrix converter (M3C) is a new topology of AC-AC power converter, which has very broad application in low frequency transmission system, high-power asynchronous motor speed regulation and low offshore wind power transmission.
LU Yu   +5 more
doaj   +1 more source

Online Parametric Estimation of Grid Impedance Under Unbalanced Grid Conditions [PDF]

open access: yesEnergies, 2019
Whereas power-electronics-based power systems are expected to enable more integration of renewable energy sources, they could pose crucial challenges including stability issues due to the Thévenin impedance seen by inverters. Such problems could be mitigated by enabling the inverters to estimate the grid impedance by including a grid impedance ...
Nabil Mohammed   +2 more
openaire   +1 more source

Analysis of 0–9 kHz Current Harmonics in a Three-Phase Power Converter Under Unbalanced-Load Conditions

open access: yesIEEE Access, 2021
The unbalanced condition of typical loads in industrial networks could affect the current harmonics across the dc-link in Adjustable Speed Drives (ASDs).
Arash Moradi   +3 more
doaj   +1 more source

An Invasive Weed Optimization for Sensor Less Control of Grid Integrated Wind Driven Doubly Fed Induction Generator

open access: yesIEEE Access, 2022
The article presents the design and development of invasive weed optimization (IWO) for the sensor less speed control of doubly fed induction generator (DFIG) under balanced and unbalanced conditions. A healthy condition represents the balanced condition
Abhinav Saxena   +5 more
doaj   +1 more source

An improved second order generalized integrators phase locked loop for flexible DC transmission

open access: yesEnergy Reports, 2022
Accurate and fast phase locking is the primary condition for flexible DC transmission to realize reliable control. When the power grid is unbalanced or contains high-order harmonics, the traditional second order generalized integrator (SOGI) itself has ...
Zhiwen Wei   +3 more
doaj   +1 more source

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