Results 41 to 50 of about 875 (164)

Finite Control Set Model Predictive Control for an LCL-Filtered Grid-Tied Inverter with Full Status Estimations under Unbalanced Grid Voltage

Energies, 2019
This paper proposes a novel finite control set model predictive control (FCS-MPC) strategy with merely grid-injected current sensors for an inductance-capacitance-inductance (LCL)-filtered grid-tied inverter, which can obtain a sinusoidal grid-injected ...
Xiaotao Chen, Weimin Wu, Ning Gao, Jiahao Liu, Henry Shu-Hung Chung, Frede Blaabjerg   +5 more
doaj   +1 more source

Smooth Droop Control Strategy for Multi-Functional Inverters in Microgrids Considering Unplanned Off-Grid Transition and Dynamic Unbalanced Loads

Energies
If unplanned off-grid events occur in microgrids, stable operation is disrupted. In particular, dynamic unbalanced loads, power pulse, and voltage changes also lead to system instability.
Jinhao Shen, Hua Zhang, Xueneng Su, Yiwen Gao, Kun Zheng, Cheng Long, Xinbo Liu   +6 more
doaj   +1 more source

Voltage-Sensorless Control Scheme for a Grid Connected Inverter Using Disturbance Observer

Energies, 2017
A grid connected inverter usually requires voltage and current measurements to control the active and reactive powers as well as the inverter output currents.
Hyun-Sou Kim, Kyeong-Hwa Kim
doaj   +1 more source

Comparison of DSOGI-Based PLL for Phase Estimation in Three-Phase Weak Grids

Electricity, 2021
The paper presents a summary of different double second-order generalized integrator (DSOGI)-based phase-locked loop (PLL) algorithms for synchronization with three-phase weak grids.
Jorge Pinto, Adriano Carvalho, Agostinho Rocha, Armando Araújo   +3 more
doaj   +1 more source

A Robust Control Scheme for Renewable-Based Distributed Generators Using Artificial Hydrocarbon Networks

Energies, 2019
Distributed generators (DGs) based on renewable energy systems such as wind turbines, solar panels, and storage systems, are key in transforming the current electric grid into a green and sustainable network.
Antonio Rosales, Pedro Ponce, Hiram Ponce, Arturo Molina   +3 more
doaj   +1 more source

Adaptive Power Factor Regulation Under Asymmetrical and Non-Sinusoidal Grid Condition With Distributed Energy Resource

IEEE Access, 2021
Active and reactive power regulation, unbalanced current compensation, and harmonic current mitigation are the most significant functionalities typically embedded to a three-phase multifunctional grid-connected inverter.
Jakson Paulo Bonaldo, Vinicius A. De Souza, Augusto Matheus Dos Santos Alonso, Luis De Oro Arenas, Fernando Pinhabel Marafao, Helmo K. Morales Paredes   +5 more
doaj   +1 more source

A novel method for voltage support control under unbalanced grid faults and grid harmonic voltage disturbances

IET Power Electronics, 2015
As an important ancillary service for smart grid, voltage support has the capability to improve the grid condition when grid voltage unbalanced fault occurs. Several solutions, taking into account not only the root mean square voltage, but also the shape of the voltage fault, have been proposed.
Zhiyong Dai, Hui Lin, Hang Yin, Yanan Qiu   +3 more
openaire   +1 more source

An Investigation into the Utilization of Swarm Intelligence for the Design of Dual Vector and Proportional–Resonant Controllers for Regulation of Doubly Fed Induction Generators Subject to Unbalanced Grid Voltages

Energies, 2022
This work presents an investigation into the use of swarm intelligence techniques for the control of the doubly fed induction generator under unbalanced grid voltages.
Kumeshan Reddy, Akshay Kumar Saha
doaj   +1 more source

Balanced Current Control Strategy for Current Source Rectifier Stage of Indirect Matrix Converter under Unbalanced Grid Voltage Conditions

Energies, 2016
This paper proposes a balanced current control strategy for the current source rectifier (CSR) stage of an indirect matrix converter (IMC) under unbalanced grid voltage conditions. If the three-phase grid connected to the voltage source inverter (VSI) of
Yeongsu Bak, June-Seok Lee, Kyo-Beum Lee
doaj   +1 more source

Model predictive control of 3L‐NPC inverter to enhance fault ride through capability under unbalanced grid conditions

IET Power Electronics
Unbalanced voltages are becoming increasingly common in distribution networks due to the growing integrations of distributed renewable energy resources as well as large loads such as electric vehicle chargers.
Cameron Smith, Ameen Gargoom, M. T. Arif, Md. Enamul Haque   +3 more
doaj   +1 more source