Results 291 to 300 of about 35,795 (319)

Reactive power sharing in microgrids: An information-theoretical approach

2017 IEEE 3rd Colombian Conference on Automatic Control (CCAC), 2017
In this work, we use a multi-agent learning framework based on information theory concepts such as maximum entropy and rate distortion theory in order to control the reactive power sharing in an islanded microgrid. The distortion between each agent (distributed generator) and the environment behavior determines a fitness function that is used as a ...
D. A. Martinez, R. Rincon, E. Mojica-Nava, A. Pavas   +3 more
openaire   +1 more source

Distributed-based reactive power sharing in islanded microgrid

2017 Chinese Automation Congress (CAC), 2017
This paper proposed an adaptive impedance control method in multi-bus distributed islanded micrigrid to share reactive power accurately and suppress circulating current. The multi-bus distributed microgrid is more complicated than one-bus because of its different bus voltages and variable structure.
Jiaming Wang, Jingrong Yu, Chaolu Zhong
openaire   +1 more source

Networked Control Approach for Voltage Regulation with Optimal Reactive Power-Sharing

IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018
Large-scale integration of distributed energy resources into the power grid poses a growing challenge for maintaining a stable, reliable and affordable power supply. The increasing number of grid-connected power plants, which are predominantly interfaced through modern power electronics systems, makes the overall microgrid management more and more ...
Johnny Chhor, Constantinos Sourkounis
openaire   +1 more source

Control method of islanded microgrid to improve reactive power sharing and power quality

2016 China International Conference on Electricity Distribution (CICED), 2016
Due to the influence of feeder impedance, reactive power supplied by distributed generation (DG) based on traditional droop control could not be shared according to their droop gains. This paper proposes a control strategy which is based on virtual impedance, frequency/voltage and reactive power regulation for islanded microgrid.
Huang Jing, Liu Xiaohua, Li Hongping
openaire   +1 more source

Active Power Sharing and Reactive Power Compensation in a Grid-tied Photovoltaic System

Materials Today: Proceedings, 2018
Abstract In the present scenario of energy crisis, researches on non-conventional energy sources have grown appreciably. The electrical energy derived from the PV panel is considered as the most useful natural resources. This paper deals with the operation and control of a grid interfaced PV system.
Vishnu Prasad, P.R. Jayasree, V. Sruthy
openaire   +1 more source

Adaptive Virtual Impedance Consensus Control for Reactive Power Sharing

2020 IEEE Kansas Power and Energy Conference (KPEC), 2020
This paper presents a new control method to ensure effective reactive power sharing in islanded microgrids with multiple distributed generator units (DG units) under mismatched feeder line conditions. A detailed mathematical model of primary and secondary control levels of a hierarchical control are designed to ensure accurate active and reactive power
Ahmed S. Alsafran, Malcolm W. Daniels
openaire   +1 more source

Accurate Reactive Power Sharing in Renewable-Prioritized Islanded Microgrids

2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), 2019
An accurate reactive power sharing scheme aiming to prioritize renewable sources is proposed and implemented under modified droop control in islanded microgrids. In order to improve reactive power sharing accuracy, an interfacing inductor and grid voltage estimation strategy is used. Simulation and experimental results show the efficacy of the approach.
Jiahui Jiang, Colin Coates, Terrence Summers   +2 more
openaire   +1 more source

A harmonic and reactive power sharing control strategy for islanded microgrids

2015 Chinese Automation Congress (CAC), 2015
For an islanded microgrid with local linear loads and public nonlinear loads, this paper proposes a control strategy to achieve better reactive power sharing and harmonic current sharing based on second-order general integrator (SOGI) model and virtual impedance. First, the SOGI alternative structure filters out fundamental current and harmonic current
null Jian Yang, null Ying Chen, null Mi Dong, null Hua Han   +3 more
openaire   +1 more source

Proportional reactive power sharing algorithm in Islanded AC microgrid

2015 First Workshop on Smart Grid and Renewable Energy (SGRE), 2015
A microgrid (MG) is a local energy system consisting a number of energy sources (e.g. wind turbine or solar panels), energy storage units and loads that operate connected to the main electrical grid or autonomously. MGs require complex management and advanced control.
Adam Milczarek, Mariusz Malinowski
openaire   +1 more source

Integration of microgrid with utility grid for sharing real and reactive power

2015 International Conference on Computer, Communication and Control (IC4), 2015
In this paper voltage source converters (VSCs) are being used in grid integrated power converters. For the mathematical model of PWM inverter under the d-q rotary coordinate system. This work has proposed a Microgrid power flow control under variable load and generation conditions.
Vinod S Tejwani, Bhavik N. Suthar, Denish A. Prajapati   +2 more
openaire   +1 more source