Results 31 to 40 of about 57,788 (289)

Grid Connected Current/Power Coordinated Control Of Quasi Z-Source Inverter In Unbalanced Power Grid

open access: yesJournal of Applied Science and Engineering, 2022
Under the condition of unbalanced grid voltage, the non-off grid operation of photovoltaic system will lead to the fluctuation of system output power and obvious harmonic distortion of grid connected current.
Li Tian, Xiaojie Yang, Bingde Huang
doaj   +1 more source

Smart Power Grid Synchronization With Fault Tolerant Nonlinear Estimation [PDF]

open access: yes, 2016
Effective real-time state estimation is essential for smart grid synchronization, as electricity demand continues to grow, and renewable energy resources increase their penetration into the grid.
Wang, Xin, Yaz, Edwin E
core   +2 more sources

Demonstration of sustained and useful converter responses during balanced and unbalanced faults in microgrids [PDF]

open access: yes, 2012
In large power grids where converter penetration is presently low and the network impedance is predominantly reactive, the required response from converters during faults is presently specified by phrases such as “maximum reactive output”.
Burt, Graeme   +4 more
core   +1 more source

Comprehensive performance analysis of flexible asynchronous AC link under various unbalanced grid voltage conditions

open access: yesEnergy Reports, 2021
A flexible asynchronous AC link (FASAL) system is a technology that interconnects two power system networks operating at the same or different frequencies.
Imdadullah   +3 more
doaj   +1 more source

Fully Digital Grid Synchronization Under Harmonics and Unbalanced Conditions [PDF]

open access: yesIEEE Access, 2019
For the grid-connected system, the unbalanced and harmonic components of three-phase grid voltage have a significant impact on the accuracy of grid synchronization. And the positive, negative sequences, harmonics, as well as dc component of the three-phase grid voltage are difficult to separate and extract in a fast and precise way.
Yu Bai   +3 more
openaire   +2 more sources

An Expanded Lyapunov-Function Based Control Strategy for Cascaded H-Bridge Multilevel Active Front-End Converters

open access: yesIEEE Open Journal of Power Electronics, 2023
Cascaded H-bridge multilevel (CHBML) active front-end (AFE) converters exhibit some enticing benefits, comprising high adaptability for numerous applications, such as tractions, solid-state transformers, electric vehicle charging stations, and medium and
Garry Jean-Pierre   +3 more
doaj   +1 more source

Improved Sliding-Mode Vector Control Strategy Combined With Extended Reactive Power for MMC Under Unbalanced Grid Condition

open access: yesFrontiers in Energy Research, 2022
Proportional–integral vector control (PIVC) has been proposed as an effective control strategy for modular multi-level converter (MMC) under balanced grid conditions.
Tianyi Guan   +6 more
doaj   +1 more source

A model-based PDPC method for control of BDFRG under unbalanced grid voltage condition using power compensation strategy [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2020
Brushless doubly fed reluctance generator (BDFRG) has been recently suggested as a wind generator. Different control methods are presented in literature for the BDFRG, but there is a gap on control under unbalanced grid voltage condition (UGVC).
M. Moazen, R. Kazemzadeh, M. R. Azizian
doaj   +1 more source

Research on Three-phase Unbalance of Micro-grid Based on Active Disturbance Rejection Control

open access: yes发电技术, 2020
Under the condition of three-phase unbalanced load in micro-grid, three-phase four-leg inverter can solve the unbalanced three-phase output voltage because of unbalanced load.
Mengran QIAN, Hui LI, Xinxiu LIU
doaj   +1 more source

Control of DFIG-WT under unbalanced grid voltage conditions [PDF]

open access: yes2009 IEEE Energy Conversion Congress and Exposition, 2009
The voltage oriented control in the synchronous reference frame (VOC-SRF) have been extensively used for controlling wind turbines based on doubly fed induction generators (DFIG-WTs) through the rotor side converter of a back to back power processor.
Luna Alloza, Álvaro   +5 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy