Results 11 to 20 of about 44,519 (152)

Research on pre-synchronization control strategy of the micro-grid with multi-VSG

Global Energy Interconnection, 2018
Seamless switching is an important guarantee for the inverter to work continuously without stopping when grid-connected power generation system is the transient process from grid-connected to isolated island and from isolated island reclosing.
Tao Yan, Cairan Wang, Zong Liu, Shaohua Xu, Yu Ba, Juntao Fei, Jerry Y.S. Lin   +6 more
doaj   +2 more sources

Pre-Synchronization Control Strategy for Virtual Synchronous Generator Grid Connection Based on Voltage Mathematical Relationships

IEEE Access
Conventional pre-synchronization control strategies for grid-connected virtual synchronous generator typically involve phase-locked loops, coordinate transformations or other non-linear computations, which may lead to substantial hardware resource ...
Yulin Kuang, Fujun Ma, Cheng Yang, Qiaoling Peng, Gelin Huang   +4 more
doaj   +2 more sources

Modeling and Control of a Multi‐Energy Microgrid With Wind LVRT and Battery Pre‐Synchronization Strategy

Energy Science & Engineering
To achieve the “dual carbon” goals, modern power systems must integrate large‐scale renewable energy, whose inherent intermittency poses challenges to grid stability.
Chunyan Li, Yu Yang, Shiyuan Bao, Huimin Huang, Zhixian Zhang   +4 more
doaj   +2 more sources

Pre-synchronization Control Method for Virtual Synchronous Generator Based on Power Matching and Self-adaptive Inertia [PDF]

Zhengzhou Daxue xuebao. Gongxue ban, 2023
It was necessary for the virtual synchronous generator (VSG) to be synchronized with the grid when it switched from off grid mode to grid connected mode.
XING Pengxiang, XU Changqing, SI Ruihua, JIA Peng, JIA Xuanyue, WEN Yunfeng   +5 more
doaj   +1 more source

Research on Multi-Machine Pre-Synchronization Control and Optimization Based on Parallel Recovery Black Start

Energies
With the increasing prevalence of renewable energy, microgrids play a crucial role in enhancing distributed energy efficiency and system flexibility. However, the intermittent and unpredictable nature of renewable energy generation presents significant ...
Zhongping Ruan, Shuye Ding, Yizhi Chen
doaj   +2 more sources

Efficacy of Pre-Synchronization and CIDR on the Outcome of Short-TermSynchronization Program in Zandi Ewes During the Breeding Season [PDF]

Iranian Journal of Veterinary Medicine, 2021
BACKGROUND: Timed breeding programs are essential to implementing extensive artificial insemination (AI) programs in sheep. OBJECTIVES: This study aimed to evaluate whether application of pre-synchronization and controlled internal drug releasing (CIDR ...
Reza Arjmandi, Mahdi Vodjgani, Amir Niasari Naslaji, Faramarz Gharagozlou, Vahid Akbarinejad   +4 more
doaj   +1 more source

A Self-Adaptive Controller for Inverter With Seamless Transfer and Automatic Pre-Synchronization Capability [PDF]

IEEE Access, 2020
A self-adaptive controller is proposed to operate inverter in both grid-connected (GC) state and stand-alone (SA) state and ensure seamless transfer between them without reconfiguring the control structure. The controller is mainly composed of phase-locked-loop (PLL) and two cascaded control loops.
Xin Meng, Xueshan Liu, Mingzhi He, Zeng Liu, Jinjun Liu   +4 more
openaire   +2 more sources

Switching Technology of Three-Terminals Soft Open Point Control Mode

Zhongguo dianli, 2023
This paper proposes a three-terminals soft open point (SOP) operation control mode switching technology under the multi-feeder faults. Firstly, combined with the inner and outer loop structures of control mode of three-terminals SOP, a control mode ...
Hui WANG, Yi CAO, Ning LUO, Hua GAO, Yan ZHANG, Yu ZHANG, Haozhong CHENG   +6 more
doaj   +1 more source

Frequency, Phase, and Magnitude Difference Locked-Loop Based Linear Synchronization Scheme for Islanded Inverters and Microgrids

IEEE Access, 2023
In recent years, integrating renewable energy sources (RESs) has achieved significant attention due to the growing demand for sustainable energy solutions.
Ozhan Atmaca, Murat Karabacak
doaj   +1 more source

Research on the Operation Control Strategy of a Low-Voltage Direct Current Microgrid Based on a Disturbance Observer and Neural Network Adaptive Control Algorithm

Energies, 2019
Low-voltage direct current (DC) microgrid based on distributed generation (DG), the problems of load mutation affecting the DC bus under island mode, and the security problems that may arise when the DC microgrid is switched from island mode to grid ...
Liang Zhang, Kang Chen, Ling Lyu, Guowei Cai   +3 more
doaj   +1 more source