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Neural networks for structured grid generation. [PDF]

Sci Rep
Abstract Numerical solutions of partial differential equations (PDEs) on regular domains provide simplicity as we can rely on the structure of the space. We investigate a novel neural network (NN) - based approach to generate 2-dimensional body-fitted curvilinear coordinate systems (BFCs) that allow to stay on regular grids even when the ...
Khairullin B, Rykovanov S, Zagidullin R.
europepmc   +4 more sources

A combined day-ahead and intraday optimal scheduling strategy considering a joint frequency regulation reserve scheme among wind, photovoltaic, and thermal power

Frontiers in Energy Research, 2023
Under the premise of establishing a certain reserve power for frequency regulation, a new energy power plant (NEPP) transformed by frequency regulation control can participate in system frequency regulation. Considering the problem of cooperation between
Shulin Zhu, Haiyun Wang, Weiqing Wang, Xiqiang Chang   +3 more
doaj   +1 more source

ESPRIT for Multidimensional General Grids [PDF]

SIAM Journal on Matrix Analysis and Applications, 2018
We present a new method for complex frequency estimation in several variables, extending the classical (1d) ESPRIT-algorithm. We also consider how to work with data sampled on non-standard domains (i.e going beyond multi-rectangles).
Fredrik Andersson, Marcus Carlsson
openaire   +3 more sources

MMC-SST input-level control strategy considering power quality optimization

电力工程技术, 2022
The surge of negative sequence component of current affects the waveform quality of grid side current and endangers the normal operation of the system when the three-phase voltage of solid state transformer (SST) in the distribution network is unbalanced
ZHAO Wei, YUAN Zhi, WANG Weiqing, HE Shan   +3 more
doaj   +1 more source

A Chaos Disturbed Beetle Antennae Search Algorithm for a Multiobjective Distribution Network Reconfiguration Considering the Variation of Load and DG

IEEE Access, 2020
As the distributed generation (DG) in a power supply and the user load demand constantly change in an actual distribution network, multiobjective optimal network reconfiguration considering variations in load and DG has become a major concern, which is ...
Jie Wang, Weiqing Wang, Zhi Yuan, Haiyun Wang, Jiahui Wu   +4 more
doaj   +1 more source

Influence of single-phase circuit breaker tripping on inverter commutation

电力工程技术, 2022
If commutation failure does not occur when single-phase high resistance grounded in single-circuit AC line of inverter,then single-phase circuit breaker tripping may lead to commutation failure.
SONG Xinfu, MA Xing, LI Fengting, YIN Chunya, XIE Chao   +4 more
doaj   +1 more source

Optimal Scheduling of Carbon Capture Power Plants Based on Integrated Coordinated Energy Storage System under the Background of Carbon Trading

Zhongguo dianli, 2023
In the process of coal-fired power low-carbon transformation, new challenges emerge such as the weakening performance of carbon capture level during peak load period, the deviation between carbon quota calculation and actual application, etc.
Shuai FENG, Zhi YUAN, Ji LI, Weiqing WANG, Shan HE   +4 more
doaj   +1 more source

A Social Beetle Swarm Algorithm Based on Grey Target Decision-Making for a Multiobjective Distribution Network Reconfiguration Considering Partition of Time Intervals

IEEE Access, 2020
With the increased distributed generation (DG) and the combination of residential, commercial, and industrial loads connected to the distribution networks, it is more difficult to ensure the safe and economic operation of the distribution networks ...
Qian Chen, Weiqing Wang, Haiyun Wang, Jiahui Wu, Xiaozhu Li, Jiongfeng Lan   +5 more
doaj   +1 more source

Finite time adaptive synchronous control for fractional‐order chaotic power systems

IET Generation, Transmission & Distribution, 2023
As a complex non‐linear system, the chaotic oscillation of power system seriously threatens the safe and stable operation of power grids. In this paper, a finite time adaptive synchronization control method is proposed to mitigate the problem of chaotic ...
Chunyu Ai, Shan He, Weiqing Wang, XiaoChao Fan   +3 more
doaj   +1 more source

Design of Variable Pitch Control Method for Floating Wind Turbine

Energies, 2023
Because of the randomness of wind speed and the nonlinearity of the dynamic equation of variable pitch control, it is difficult to establish an accurate dynamic equation of variable pitch of floating fan. In view of this situation, this paper takes the 5
Jiawang Yuan, Zhijiang Cheng, Dengquan Liu   +2 more
doaj   +1 more source