Results 41 to 50 of about 313 (109)

A Simple Operation Approach for Modular Multilevel Converter Under Grid Voltage Swell in Medium-Voltage Microgrids [PDF]

, 2019
Modular multilevel converter (MMC) is drawing more and more attention in medium-voltage microgrid applications. Large-scale switching-off loads and grid faults may lead to the voltage swell in microgrid, where MMC should have the ride-through ability. In
Blaabjerg, Frede, Chen, Linglin, Jin, Yu, Liu, Huiqiao, Teodorescu, Remus, Xiao, Qian, Yu, Xiaodan   +6 more
core   +1 more source

Optimization of Transient Control Parameters of Renewable Energy Considering Power Angle Stability and Over‐Voltage in the Power Generation Base

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This paper analyses the impact mechanism of renewable energy transient control parameters on power angle stability and transient overvoltage in a generation system with combined renewable energy and conventional thermal power. An optimization method for transient control parameters is proposed to improve the export transmission limits of the coupled ...
Yuxin Yang, Yongli Zhu, Jinsong Wang, Haichao Yang, Jian Wu   +4 more
wiley   +1 more source

Review and evaluation of control-based protection solutions for converter-dominated power systems [PDF]

, 2023
With the rapid and massive increase of converter-interfaced resources (e.g. renewable generation, HVDC systems, etc.), the dynamic behavior of future power systems is expected to change significantly and will be predominantly determined by converters ...
Booth, Campbell, Cao, Shuxiu, Hong, Qiteng, Liu, Di   +3 more
core   +1 more source

Distributed Energy Resource Behavior During Faults: Navigating Voltage Ride‐Through Compliance Within the Realm of EN 50549

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This study examines how increasing inverter‐based RERs affect fault propagation in MV DNs, ensuring adherence to European grid codes EN 50549‐1 and EN 50549‐2 concerning LVRT requirements. A model predictive current control strategy, an LVRT, and secondary power controllers are developed and tested using a detailed MATLAB/Simulink model of the Sundom ...
Hussain Sarwar Khan, Muhammad Kamran Khan, Kimmo Kauhaniemi   +2 more
wiley   +1 more source

Electrical machines-based multi-disturbance device for testing distribution grid technologies [PDF]

, 2018
The growth of distributed energy resources in power systems, mainly converter-coupled generators, has forced the evolution of grid codes, increasing the requirements to be fulfilled by the generators before their connection to the mains.
Alvaro-Hermana, Roberto, Fraile-Ardanuy, Jesús, Merino, Julia, Veganzones, Carlos   +3 more
core   +1 more source

An Enhanced Fault Ride‐Through Control Method of the VSG Based on Dynamic Power Compensation

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
To enhance the fault ride‐through (FRT) capability for the VSGs, an FRT control method based on dynamic power compensation (DPC) is proposed in this article, which comprehensively considers both the fault current limitation and power angle stability for the VSG.
Xueqing Li, Xibo Yuan, Kai Wang, Yonglei Zhang, Xiang Guo, Xiangkui Hao   +5 more
wiley   +1 more source

Implementation of a D‐STATCOM and Active Power Filter Control Strategy–Based on Virtual Flux Direct Power Control Technique for an Electrical Energy Quality Improvement

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
The improved virtual flux–based direct power control (VF‐DPC) strategy for a grid‐connected power converters is proposed in this paper to eliminate current harmonics and mitigate voltage fluctuations during grid voltage faults without using voltage sensors.
Kamel Sayahi, Belgacem Bouallegue, Faouzi Bacha, El Manaa Barhoumi, Santanu Paul   +4 more
wiley   +1 more source

Non‐linear coordinated control of LPMG‐based direct drive wave energy conversion system with supplementary energy storage system based on feedback linearization

IET Renewable Power Generation, Volume 18, Issue 15, Page 3077-3090, 16 November 2024.
This manuscript proposes a novel non‐linear coordinated control scheme for the direct drive wave energy conversion system (DDWECS) with a supplementary energy storage system (SESS) for grid integration. The control scheme aims to improve the dynamic performance under perpetual fluctuations of ocean waves and coordinate the machine‐side subsystem, the ...
Yiyan Sang, Jiamin Sheng, Hua Xue, Yufei Wang, Qigang Wu   +4 more
wiley   +1 more source

Enhanced LVRT and HVRT Capability of Grid Tied PMSG Based Wind Energy System Using Active Disturbance Rejection Controller [PDF]

Journal of Renewable Energy and Environment
The widespread integration of wind energy poses numerous challenges, including ride-through capability issues, stability concerns, and power quality issues within the utility grid.
Sagiraju Dileep Varma, Sarathbabu Duvvuri, Omkar Koduri, Srikanth Malladi   +3 more
doaj   +1 more source

Improving the performance of grid‐connected inverters during asymmetrical faults and unbalanced grid voltages

IET Generation, Transmission &Distribution, Volume 18, Issue 19, Page 3097-3107, October 2024.
Short circuit faults and unbalanced grid voltage are severe transient events that inverters need to be able to pass through without disconnecting from the grid. This article proposes a voltage support control scheme to support grid voltage during asymmetrical voltage drop by utilizing an optimization problem.
Sepideh Shabani, Mehdi Gholipour, Mehdi Niroomand   +2 more
wiley   +1 more source