Results 31 to 40 of about 645 (112)

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

Marine Predator Algorithm-Based Optimal PI Controllers for LVRT Capability Enhancement of Grid-Connected PV Systems

Biomimetics
Photovoltaic (PV) systems are becoming essential to our energy landscape as renewable energy sources become more widely integrated into power networks.
Hazem Hassan Ellithy, Hany M. Hasanien, Mohammed Alharbi, Mohamed A. Sobhy, Adel M. Taha, Mahmoud A. Attia   +5 more
doaj   +1 more source

A Comprehensive Review on Voltage Stability in Wind-Integrated Power Systems

Energies
The fast growth of the world’s energy demand in the modernized world has stirred many countries around the globe to focus on power generation by abundantly available renewable energy resources.
Farhan Hameed Malik, Muhammad Waleed Khan, Tauheed Ur Rahman, Muhammad Ehtisham, Muhammad Faheem, Zunaib Maqsood Haider, Matti Lehtonen   +6 more
doaj   +1 more source

Low-Voltage Ride-Through Control Strategy for a Virtual Synchronous Generator Based on Smooth Switching

IEEE Access, 2018
The grid-connected inverter with virtual synchronous generator (VSG) control technology can improve the friendliness of a distributed power supply to the power grid. However, its low-voltage ridethrough (LVRT) capability is insufficient, which results in
Kai Shi, Wentao Song, Peifeng Xu, Rongke Liu, Zhiming Fang, Yi Ji   +5 more
doaj   +1 more source

Multi-Mode Voltage Sag/Swell Generator Based on Three-Phase Inverter Circuit

Energies, 2021
The voltage ride through capability of the major auxiliary variable-frequency drive (VFD) in large thermal power plants is the key technical issue of power grid and source coordination.
Qiguo Han, Xing Wang, Pengfei Hu, Maolin Wang, Xu Luo, Weihua Hou   +5 more
doaj   +1 more source

A Generalized Load Model Considering the Fault Ride-Through Capability of Distributed PV Generation System

Energies
Considering the voltage stability problem brought by large-scale distributed PV access to the distribution network, this paper proposes a generalized load model that considers the fault ride-through capability of distributed PV.
Haiyun Wang, Qian Chen, Linyu Zhang, Xiyu Yin, Han Cui, Zhijian Zhang, Huayue Wei, Xiaoyue Chen   +7 more
doaj   +1 more source

Control Strategy of Low-voltage Ride-through for Micro-grid under Asymmetric Grid Voltage

Kongzhi Yu Xinxi Jishu, 2016
It researched the control strategy of micro-grid low voltage ride-through under asymmetric grid voltage, established a mathematical model of micro- grid stability controller under asymmetric grid voltage for low voltage ride- through of micro-grid under ...
XU Liang, HAN Minxiao
doaj  

Low-voltage ride-through control strategy for permanent magnet synchronous generator under weak grid

Diance yu yibiao
In order to improve the low-voltage ride-through（LVRT）capability of permanent magnet synchronous generator（PMSG）under weak grid, this paper proposes a low-voltage ride-through control strategy for power support and auxiliary protection of unloading ...
CHEN Zhong, DING Linzhi, GU Chunsong
doaj   +1 more source

Realization of “Soft-ride-through” Ability under the New Grid-connected Standards for Doubly-fed Induction Wind Generator

Kongzhi Yu Xinxi Jishu, 2013
According to the new requirements of grid-connected wind farm, “soft- ride-through” strategy and implementation of doublyfed induction wind generator are analyzed and compared, so as to achieve the perfect realization under the stringent new standards.
LIU Pengfei, LU Yong, MO Xujie, SONG Jianxiu, JIANG Yaosheng   +4 more
doaj  

Analysis of Transient Voltage-Frequency Dynamic Coupling Mechanism of High-Proportion Renewable Energy Sending End System Under Commutation Failure Faults [PDF]

Dianli jianshe
[Objective] Aiming at the new challenge of unclear transient voltage and system frequency operation risks faced by sending-end power systems with a high proportion of renewable energy after commutation failure， this paper reveals the dynamic coupling ...
GAO Shang, YIN Chunya, LIU Wan, LI Xiaozhu, HAN Lu, ZHANG Gaohang
doaj   +1 more source