Results 61 to 70 of about 218,497 (351)

Distributed Contingency Analysis over Wide Area Network among Dispatch Centers

, 2017
Traditionally, a regional dispatch center uses the equivalent method to deal with external grids, which fails to reflect the interactions among regions.
Chen, Ying, Huang, Shaowei, Liu, Xinyuan, Ren, Zhengwei, Sheng, Shuang, Zheng, Huiping   +5 more
core   +1 more source

Reinforcement learning optimizes power dispatch in decentralized power grid

Chaos, Solitons & Fractals
Effective frequency control in power grids has become increasingly important with the increasing demand for renewable energy sources. Here, we propose a novel strategy for resolving this challenge using graph convolutional proximal policy optimization (GC-PPO). The GC-PPO method can optimally determine how much power individual buses dispatch to reduce
Yongsun Lee, Hoyun Choi, Laurent Pagnier, Cook Hyun Kim, Jongshin Lee, Bukyoung Jhun, Heetae Kim, Jürgen Kurths, B. Kahng   +8 more
openaire   +3 more sources

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

Advanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling, Matthias Steinbacher, Nils Ellendt   +2 more
wiley   +1 more source

Design of a New Energy Microgrid Optimization Scheduling Algorithm Based on Improved Grey Relational Theory

Algorithms
In order to solve the problem of the large-scale integration of new energy into power grid output fluctuations, this paper proposes a new energy microgrid optimization scheduling algorithm based on a two-stage robust optimization and improved grey ...
Dong Mo, Qiuwen Li, Yan Sun, Yixin Zhuo, Fangming Deng   +4 more
doaj   +1 more source

Novel protection method for VSC-HVDC transmission lines

The Journal of Engineering, 2019
The large shunt capacitances on both sides of VSC-HVDC transmission line will block and reflect the travelling waves when a fault occurs on DC cable lines.
Lingtong Jiang, Qing Chen, Lei Wang, Pu Zhao, Yu Zeng, Wudi Huang   +5 more
doaj   +1 more source

Coordinated voltage control of active distribution networks with photovoltaic and power to hydrogen

IET Energy Systems Integration, 2023
The rapid increase of photovoltaic (PV) penetration in active distribution networks (ADN) is posing great challenges to traditional voltage control schemes.
Yongxiang Zhang, Jian Chen, Haoran Zhao, Wen Zhang, Wenshu Jiao, Wuzhen Dai   +5 more
doaj   +1 more source

A predictive pan-European economic and production dispatch model for the energy transition in the electricity sector

, 2017
The energy transition is well underway in most European countries. It has a growing impact on electric power systems as it dramatically modifies the way electricity is produced.
Jacquod, Philippe, Pagnier, Laurent
core   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Power Grid Scenario Generation Method Based on a Prior Knowledge Embedded Conditional Generative Adversarial Network

Energies
This paper addresses the challenges of scarce high-risk scenario samples in power grid operation and the difficulty of traditional methods to balance overall distribution rationality with specific feature requirements.
Qian Guo, Lizhou Jiang, Zijie Meng, Zhijun Shen, Xinlei Cai, Guihai Lai, Tao Yu   +6 more
doaj   +1 more source

Understanding the Inefficiency of Security-Constrained Economic Dispatch

, 2017
The security-constrained economic dispatch (SCED) problem tries to maintain the reliability of a power network by ensuring that a single failure does not lead to a global outage.
Cai, Desmond, Hajiesmaili, Mohammad H., Mallada, Enrique   +2 more
core   +1 more source