Results 11 to 20 of about 1,511,148 (319)

A Three Phase Voltage Restorer Based on Bipolar Direct AC/AC Converters

open access: yesIEEE Access, 2023
A new topology is proposed to regulate voltage sags/swells in the distribution network in this paper. Voltage sags and swells are a serious power quality problem faced by the power industry.
Wang Yibo   +6 more
doaj   +1 more source

Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection Method

open access: yesEnergies, 2021
With the development of large-scale new energy, the wind–thermal bundled system transmitted via high-voltage direct current (HVDC) has become the main method to solve the problem of wind power consumption.
Junxi Wang   +4 more
doaj   +1 more source

Using virtual instrumentation in the application study of electronic devices [PDF]

open access: yesMATEC Web of Conferences, 2022
Continuous technological developments require proper training of future specialists through the use of modern training systems. This paper presented in detail both hardware and software structures in a laboratory stand for interactive training of future ...
Pătrășcoiu Nicolae   +3 more
doaj   +1 more source

Operational reliability assessment considering independency between wind power ramps and frequency sensitive loads [PDF]

open access: yesE3S Web of Conferences, 2021
With the increasing wind power penetration, power system frequency is more vulnerable especially when gust wind periods. Frequency control is used to restore system frequency back to the rated value.
Xiao Xiaolong   +3 more
doaj   +1 more source

A comprehensive design method of an active electronic current transformer for stable energy harvesting from power lines

open access: yesIET Power Electronics, 2023
The real‐time monitoring technology of power line is an important guarantee for the digitization and intelligence of the modern power system. Traditional current transformers cannot provide continuous and stable energy when the power line current ...
Yifan Wang   +6 more
doaj   +1 more source

Bayesian Network Based Imprecise Probability Estimation Method for Wind Power Ramp Events

open access: yesJournal of Modern Power Systems and Clean Energy, 2021
Although wind power ramp events (WPREs) are relatively scarce, they can inevitably deteriorate the stability of power system operation and bring risks to the trading of electricity market.
Yuanchun Zhao   +3 more
doaj   +1 more source

Power-Imbalance Allocation Control of Power Systems-Secondary Frequency Control [PDF]

open access: yesAutomatica, 2018
The traditional secondary frequency control of power systems restores nominal frequency by steering Area Control Errors (ACEs) to zero. Existing methods are a form of integral control with the characteristic that large control gain coefficients introduce an overshoot and small ones result in a slow convergence to a steady state.
Kaihua Xi   +3 more
openaire   +3 more sources

Power System Frequency Control: Modeling and Advances

open access: yes, 2023
Power System Frequency Control: Modeling and Advances evaluates the control schemata, secondary controllers, stability improvement methods, optimization considerations, microgrids, multi-microgrids, and real-time validation required to model and analyze ...
Mishra, DK, Li, L, Hossain, MJ, Zhang, J
core   +1 more source

Design and Implementation of PI and PID Controller for symmetrical multilevel boost Converter [PDF]

open access: yesEPJ Web of Conferences
In this research, we propose developing and executing PID and PI controllers for a symmetrical multilevel boost converter in Matlab/Simulink. The symmetrical multilevel converter is powered by a 15 V DC generator with a 50 kHz switching frequency ...
El Haji Ikram   +3 more
doaj   +1 more source

Optimizing Method for Key Parameters of Under-frequency Load Shedding for Power System Penetrated with Hydropower

open access: yesZhongguo dianli, 2020
Under-frequency load shedding is an important part of the last defense line for power grid. However, the under-frequency load shedding device is prone to overcutting when large power shortage disturbance occurs in the grid system with high penetration of
Xiaojie PAN   +4 more
doaj   +1 more source

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