Results 81 to 90 of about 53,468 (203)

Grid-forming and Grid-Following Dual-Mode Switching Strategy Based on APS-IPSO for Grid-Forming Energy Storage [PDF]

Dianli jianshe
[Objective] Addressing the challenge that grid-forming energy storage converters，operating in a single mode，struggle to adapt to variations in grid short-circuit ratio and complex fault disturbances，this paper proposes a dual-mode switching strategy ...
CHEN Xiaoyang, LI Chenyang, XU Hengshan, MA Xin, MI Ma, SUOLANG Pingcuo
doaj   +1 more source

Sequence impedance modeling of grid-following LC-type voltage source converter

Journal of Physics: Conference Series
Abstract This paper establishes the impedance model of a grid-following converter without grabbing control delay and frequency coupling effects into attention, and uses the sinusoidal linearization to operate method to create both sides of the sequence impedance model in order to study the oscillation problem of power systems that ...
Yu Chen, Chenghao Sun, Fujun Qi, Haijuan Zhang, Xiaodong Chu, Hua Ye   +5 more
openaire   +1 more source

A new transient phenomenon caused by active current dynamics of grid-following converters during severe grid faults

Frontiers in Energy Research
Existing transient stability analysis of grid-following (GFL) converters mainly focuses on the dynamics of the phase-locked loop (PLL), while current loop dynamics are usually neglected due to their faster response than PLL. However, this article reveals
Chao Wu, Zhanqi Huang, Yong Wang, Frede Blaabjerg   +3 more
doaj   +1 more source

A siting and sizing method for grid-forming converters based on gSCR and IMR

Zhejiang dianli
With the increasing penetration of renewable energy in power systems， the integration of conventional grid-following （GFL） converters into power systems with a high share of renewables poses a risk of small-signal instability.
SHI Ziyi, ZHANG Xiaonan, TIAN Xiaokang, ZHENG Le, ZHANG Tiance, LI Gengyin   +5 more
doaj   +1 more source

Megawatt-level converter grid-forming control technology by adopting MPC for medium voltage distribution network

Frontiers in Energy Research
The grid-forming control (GFM) is treated as controlled voltage sources, which can enhance synchronize stability in weak grid case. However, the dynamic response of existing GFM method is limited, and the transient overcurrent in fault is still not ...
Shangke Liu, Xiangnan Du, Yanli Xiao, Yuanyuan Liu, Rui Zhao   +4 more
doaj   +1 more source

Power Management of the DC Bus Connected Converters in a Hybrid AC/DC Microgrid Tied to the Main Grid

Energies, 2018
In this paper, a centralized control strategy for the efficient power management of power converters composing a hybrid AC/DC microgrid is explained. The study is focused on the converters connected to the DC bus.
Robert Antonio Salas-Puente, Silvia Marzal, Raúl González-Medina, Emilio Figueres, Gabriel Garcera   +4 more
doaj   +1 more source

Smooth switching control method for grid-following and grid-forming converters

Journal of Physics: Conference Series
Abstract In the end grid with high penetration of new energy, a single control mode of grid-following or grid-forming makes it difficult to balance stability, economy, and grid-supporting capabilities. To solve the above problems, starting from the topological structures and mathematical models of grid-following and grid-forming ...
Qinghua Yu, Shimin Du, Zeyun Guo
openaire   +1 more source

Synchronization Stability of Grid-Following Converters Governed by Saturation Nonlinearities

IEEE Transactions on Power Systems, 2022
Tianhao Wu, Qirong Jiang, Meng Huang, Xiaorong Xie   +3 more
openaire   +1 more source

The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability

, 2013
This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC).
Critchley, R, Crookes, W, Green, TC, Hassan, F, Merlin, MMC, Mitcheson, PD, Trainer, DR   +6 more
core   +1 more source

Transient Synchronization Stability in Grid-Following Converters: Mechanistic Insights and Technological Prospects—A Review

Energies
This paper investigates the transient synchronization stability mechanisms and technological advancements associated with grid-following (GFL) converters, providing a systematic review of the current research landscape and future directions in this field.
Yang Liu, Lin Zhu, Xinya Xu, Dongrui Li, Zhiwei Liang, Nan Ye   +5 more
doaj   +1 more source