Results 11 to 20 of about 451,642 (327)

Reactive Power Optimization for Transient Voltage Stability in Energy Internet via Deep Reinforcement Learning Approach

open access: yesEnergies, 2019
The existence of high proportional distributed energy resources in energy Internet (EI) scenarios has a strong impact on the power supply-demand balance of the EI system.
Junwei Cao   +3 more
doaj   +2 more sources

Transient Voltage Stability of UHV DC/AC Hybrid Power Grids with Spinning Reserve [PDF]

open access: yesE3S Web of Conferences, 2020
This paper studies the mechanism of spinning reserve on transient voltage stability in ultra-high voltage (UHV) DC/AC hybrid power grids. Taking an actual received power grid with an UHVDC system as an example, the transient voltage stability is ...
Cui Ting   +4 more
doaj   +1 more source

Impact of HVDC transmission capacity on multi-send HVDC system voltage stability

open access: yesEnergy Reports, 2022
The massive construction of high voltage direct current (HVDC) makes the AC/DC interactions very complicated, which seriously affects transient voltage stability.
Mingjie Wang, Gang Zhang, Zhe Zhang
doaj   +1 more source

Quantitative Assessment Method for Transient Voltage of Distribution Network with High-Penetration Wind Power

open access: yesZhongguo dianli, 2022
With the further penetration of distributed wind power in the distribution network, assessing the factors affecting the transient voltage stability of the power grid becomes increasingly significant. However, the existing indexes for evaluating transient
Yanchun XU   +3 more
doaj   +1 more source

Enhancing System Reliability and Transient Voltage Stability through Optimized Power Sources and Network Planning

open access: yesElectronics, 2023
Renewable energy is an important means of addressing climate change and achieving carbon peaking and carbon neutrality goals. However, the uncertainty and randomness of renewable energy also have a certain impact on the flexibility, reliability, and ...
Fan Li   +8 more
semanticscholar   +1 more source

Multi-task transient stability assessment of power system based on graph neural network with interpretable attribution analysis

open access: yesEnergy Reports, 2023
Transient power angle stability analysis and voltage stability analysis are the key basis of power system security and stability control. The diversified operation modes of power system put forward higher requirements for real-time and topology ...
Sili Gu   +5 more
doaj   +1 more source

The Voltage Regulation Control Strategy with Distributed Photovoltaic Participation under Serious Failure Based on Transient Voltage Margin [PDF]

open access: yesE3S Web of Conferences, 2020
With the poor ability of distributed PV to withstand voltage fluctuation, the voltage fluctuation caused by DC blocking can lead to large-scale disorderly de-networking of distributed PV, especially those distributed PV which close to voltage weak buses.
Liu Yunxin   +6 more
doaj   +1 more source

Transient voltage stability assessment of renewable energy grid based on residual SDE-Net

open access: yesEnergy Reports, 2022
For the purpose of assessing the transient voltage stability of renewable energy grid more effectively and to measure the epistemic uncertainty of the evaluation results, a power system transient voltage stability assessment method based on residual ...
Yucheng Chen   +5 more
doaj   +1 more source

Voltage Stability and Transient Symmetrical Fault Current Control of Voltage-Controlled MMCs [PDF]

open access: yesIEEE Transactions on Power Delivery, 2020
This paper presents a design-oriented analysis on the voltage stability and the transient fault current limitation of voltage-controlled modular multilevel converter (MMC) with L-filters. First, a dual-loop voltage control based on the L-filter plant is systematically designed, where the upper limits of controller parameters to ensure the small-signal ...
Yingbiao Li   +6 more
openaire   +1 more source

Low voltage ride through capability evaluation method for permanent magnet synchronous motor with variable frequency convertor based softly starting

open access: yes电力工程技术, 2022
Permanent magnet synchronous motor is widely used in industrial sites. In some cases,it is started softly by variable frequency converter and then switched to operate normally with power frequency.
ZHANG Zhihua   +4 more
doaj   +1 more source

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