Results 21 to 30 of about 2,636 (303)

Transient Oscillations Analysis and Modified Control Strategy for Seamless Mode Transfer in Micro-Grids: A Wind-PV-ES Hybrid System Case Study

open access: yesEnergies, 2015
With the rapid development of the micro-grid associated with new and clean energies, the smooth switching between grid-connected and islanded operation modes of the micro-grid is a key issue that needs to be addressed urgently.
Tengfei Zhang   +3 more
doaj   +1 more source

Consensus Algorithm-Based Distributed Operation of Microgrids During Grid-Connected and Islanded Modes

open access: yesIEEE Access, 2020
The existing distributed operation schemes for microgrids lack the ability to determine the power selling to the grid during normal operation mode and are unable to provide service reliability to critical loads, during islanded operation mode.
Haesum Ali   +3 more
doaj   +1 more source

Controller Design for Distributed Secondary Voltage Restoration in the Islanded Microgrid

open access: yesFrontiers in Energy Research, 2022
The extensive usage of the cyber communication system in multiple distributed secondary controls of islanded microgrids (MGs) suggests that the effects of the communication network and security concerns on system stability cannot be negligible.
Yiwei Feng, Jing Ma
doaj   +1 more source

Line interactive UPS for microgrids [PDF]

open access: yes, 2014
Line interactive Uninterruptable Power Supply (UPS) systems are good candidates for providing energy storage within a microgrid to help improve its reliability, economy and efficiency.
Sharkh, S.M.   +5 more
core   +1 more source

Design and parameter analysis of an improved pre-synchronization method for multiple inverters based on virtual synchronization generator control in microgrid

open access: yesEnergy Reports, 2022
The microgrid is increasingly important because of the rapid development of renewable energy. Meanwhile, power converter is an important interface, where the stable operation of microgrid need effective inverter control strategy.
Liang Meng   +5 more
doaj   +1 more source

Performance of Multifunctional Smart PV-Based Domestic Distributed Generator in Dual-Mode Operation

open access: yesMachines, 2021
This article briefs about a smart multifunctional single-phase inverter control for a domestic solar photo voltaic (PV)-based distributed generation that can work in both a grid-connected mode and an islanded mode by making the inverter mimic the ...
Kumar Chandrasekaran   +6 more
doaj   +1 more source

Unified Grid-Connected and Islanded Operation

open access: yes, 2021
In order to ensure the uninterrupted power supply, it is necessary for microgrid to operate in both grid-connected mode and islanded mode. To address this concern, this chapter introduces a unified decentralized control strategy for both grid-connected ...
Lu, Jinghang   +11 more
core   +1 more source

Intelligent Control Frequency Microgrid in Islanded Mode by Central Protection Unit [PDF]

open access: yes, 2015
The appearance of microgrids created challenges such as microgrid protection and due to the presence distributed generation in microgrid network fault currents basically are variable.protection projects based on constant current must be upgraded.one of ...
Mohammad Haidi Hajihosseini   +7 more
core   +1 more source

A Review on Optimization and Control Methods Used to Provide Transient Stability in Microgrids

open access: yesEnergies, 2019
Microgrids are distribution networks consisting of distributed energy sources such as photovoltaic and wind turbines, that have traditionally been one of the most popular sources of energy.
Seyfettin Vadi   +4 more
doaj   +1 more source

Power Quality in AC Islanded Microgrids: Technical Framework and State of the Art Review

open access: yesIngeniería e Investigación, 2020
In recent years, operation and control strategies in distribution systems have changed due to the increase in the connection of distributed generation sources (DGs). Small local networks with electricity users and DGs are known as microgrids.
Vanessa Quintero-Molina   +4 more
doaj   +1 more source

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