Results 51 to 60 of about 485 (183)

An Overcurrent Suppression Strategy for Distributed Photovoltaic Inverters Under Unbalanced Faults Based on Adaptive Linear Active Disturbance Rejection Control

IET Smart Grid, Volume 9, Issue 1, January/December 2026.
After distributed photovoltaic (PV) systems are connected to the distribution network, the overcurrent problem caused by transient faults instantaneously threatens the safety of PV inverters and other equipment. This paper proposes a comprehensive control method that combines active‐loop adaptive linear active disturbance rejection control (A‐LADRC ...
Dandan Zhu, Qian Zhou, Yongyong Jia, Dajiang Wang, Jianhui Meng, Xintong Dong, Junyuan Zhang   +6 more
wiley   +1 more source

Wind–Storage Coordinated Control Strategy for Suppressing Repeated Voltage Ride-Through of Units Under Extreme Weather Conditions

Energies
In practical engineering, large-scale wind power integration typically requires long-distance transmission lines to deliver power to load centers. The resulting weak sending-end systems lack support from synchronous power sources.
Yunpeng Wang, Ke Shang, Zhen Xu, Chen Hu, Benzhi Gao, Jianhui Meng   +5 more
doaj   +1 more source

Experimental Verification of the Performance of a Nonlinear Regulator Based on Genetic Algorithms in Improving the Power Quality of DFIG

International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
This experimental work investigates the energy control of the doubly fed induction generator. The energy control is performed using a direct power control based on a fractional‐order proportional‐integral (FOPI) regulator. The PI regulator parameters are calculated using a genetic algorithm. The use of this strategy ensures stable operation of the DFIG,
Habib Benbouhenni, Abdessmad Milles, Zakaria Mohamed Salem Elbarbary, Ilhami Colak, Nicu Bizon, Salman Arafath Mohammed, Kanasottu Anil Naik   +6 more
wiley   +1 more source

Novel Approach for Power Management‐Based NPC STATCOM for Grid‐Connected Photovoltaic Battery System

Energy Science &Engineering, Volume 13, Issue 12, Page 6017-6039, December 2025.
ABSTRACT The development of power quality control systems and methods is a credible step for the modernization of the power grid. In this context, this paper presents novel approaches for the control of power quality and voltage of the power grid using power converters connected to photovoltaic battery systems.
Kamel Sayahi, El Manaa Barhoumi, Belgacem Bouallegue, Faouzi Bacha   +3 more
wiley   +1 more source

Low-Voltage Ride-Through Capability of a Single-Stage Single-Phase Photovoltaic System Connected to the Low-Voltage Grid

International Journal of Photoenergy, 2013
The progressive growing of single-phase photovoltaic (PV) systems makes the Distribution System Operators (DSOs) update or revise the existing grid codes in order to guarantee the availability, quality, and reliability of the electrical system.
Yongheng Yang, Frede Blaabjerg
doaj   +1 more source

The Analysis of the Voltage Drivers' Effects on Creating Stability in Variable‐Speed Pumped‐Storage Power Plant

Engineering Reports, Volume 7, Issue 9, September 2025.
Modern driver with flexible DC link and a novelty topology for controlling it; in which, two‐level or three‐level voltage source converters (2LVSC or 3LVSC) with specific arrangement 8 + 1 power modules as an innovation will be employed in variable speed pumped storage power plants.
Mohammad Reza Semsar, Seyed Mohammad Hassan Hosseini, Seyed Babak Mozaffari, Seyed Ebrahim Afjei   +3 more
wiley   +1 more source

Enhancement of Passive Sliding Mode Control Model for LVRT Capability in DFIG Based Wind Turbines

Wind Energy, Volume 28, Issue 6, June 2025.
ABSTRACT Doubly fed induction generator (DFIG) is vulnerable to transient stability situations occurring on the grid side. First of all, with the models to be developed in the wind turbines, LVRT capability must be provided depending on the grid code requirement for various problems that may occur, such as overcurrent, voltage, and uncertainty in ...
M. Kenan Döşoğlu
wiley   +1 more source

Research on the Adaptive Protection Method for Distribution Networks With Inverter‐Type Distributed Power Supplies: Based on Short‐Circuit Impedance Calculation

Engineering Reports, Volume 7, Issue 4, April 2025.
If the linear node voltage equation set obtained from the faulty composite sequential network is solved directly by linear transformation, it is not possible to accurately calculate and obtain the fault current and the voltage at the merging point of IIDG.
Zhuoran Song, Zhanjun Li, Yongji Tong, Wenlei Dou, Hongbo Zhu, Tao Jiang   +5 more
wiley   +1 more source

A Grid Voltage Measurement Method for Wind Power Systems during Grid Fault Conditions

Energies, 2014
Grid codes in many countries require low-voltage ride-through (LVRT) capability to maintain power system stability and reliability during grid fault conditions.
Cheol-Hee Yoo, Il-Yop Chung, Hyun-Jae Yoo, Sung-Soo Hong   +3 more
doaj   +1 more source

Voltage-induced stresses during Low Voltage Ride Through (LVRT) in the drive train of wind turbines with DFIG

RE&PQJ
Nowadays   stochastic   occurrence   of   main   grid   disturbances (LVRT,  FRT)  leads  to  high  level  vibrational  excitation  of  the drive train during operation of wind turbines. Regardless  of  the  drivetrain  design  as a  direct,  hybrid  or  multi-stage  geared  one  in  this  case  high  mechanical  and  electrical stresses should be ...
null Dr.-Ing. Jan Wenske, null Prof. i.R. Dr.-Ing. habil. Ulrich Beckert   +1 more
openaire   +1 more source