Results 11 to 20 of about 123,459 (289)

Balanced reduction method of direct-drive wind farm for subsynchronous oscillation analysis

open access: yes电力工程技术, 2023
Direct-drive wind farms (DDWF) merged into weak AC systems have the risk of sub-synchronous oscillations (SSO). Because the DDWF model has a higher order, it needs to be reduced for actual analysis.
GAO Benfeng   +3 more
doaj   +1 more source

Cyber–physical microgrid components fault prognosis using electromagnetic sensors

open access: yesIET Cyber-Physical Systems, 2018
Higher operational requirements in cyber–physical microgrid system stress the electrical system and may push it to the edge of stability. Therefore, prognosis of the imminent failures is vital.
Tanushree Agarwal   +5 more
doaj   +1 more source

Deadbeat Control Strategy for Improving the Harmonic Characteristics of Medium Voltage MMC

open access: yesZhongguo dianli, 2022
In order to solve the problem of current distortion of the modular multilevel converter (MMC), this paper proposes the deadbeat control strategy for the medium voltage MMC.
Hanchen GUO   +5 more
doaj   +1 more source

Contribution of a smart transformer in the local primary control of a microgrid [PDF]

open access: yes, 2013
In order to enable an easy participation of microgrids in the electricity markets, the smart transformer (ST) concept has been developed. The ST controls the power exchange between a microgrid and the utility network by only controlling its microgrid ...
De Kooning, Jeroen   +4 more
core   +2 more sources

Coupling analysis on power‐frequency control loops for virtual synchronous generator based on relative gain array and Prony method

open access: yesIET Power Electronics, 2023
With the improvement of the penetration of power electronic equipment, a challenging scenario is arising in power‐frequency control system design of virtual synchronous generator (VSG).
Jiaoxin Jia, Xiangwu Yan, Benshuang Qin
doaj   +1 more source

Intelligent Protection Scheme of Electrical Energy Distribution Systems in the presence of Distributed Generation Sources using Agent-Based Distributed Controller [PDF]

open access: yesهوش محاسباتی در مهندسی برق, 2023
The ever-increasing of renewable distributed generation sources in distribution networks, as well as increasing network size, have faced agent-based protection schemes with a heavy communicational load.
Majid Rostamnia   +3 more
doaj   +1 more source

Single-Switch High Step-Up Zeta Converter Based on Coat Circuit

open access: yesIEEE Access, 2021
By the negative influence of parasitic parameters from the components, the voltage step-up capacity of basic dc-dc converters is limited at extremely high duty cycle.
Binxin Zhu   +4 more
doaj   +1 more source

Research on control strategy of two-stage photovoltaic virtual synchronous generator with variable power point tracking

open access: yesEnergy Reports, 2022
Based on the analysis of the operation characteristics of photovoltaic cells, a novel virtual synchronous generator adaptive power regulation strategy for two-stage three-phase photovoltaic system with high permeability of clean energy is proposed.
Bo Zhang, Peisen Zhao, Jiale Zhao
doaj   +1 more source

Mid-Term Residential Load Forecasting Based on Neighborhood Component Analysis Feature Selection [PDF]

open access: yesهوش محاسباتی در مهندسی برق, 2022
Residential load forecasting plays an important role in management and planning in modern smart grids. In planning to keep demand and supply balanced, accurate residential load forecasting is needed.
Iman Bahadornejad   +4 more
doaj   +1 more source

Development of a smart transformer to control the power exchange of a microgrid [PDF]

open access: yes, 2013
A smart transformer enables to control the power exchange between a microgrid and the utility network by controlling the voltage at the microgrid side within certain limits.
De Kooning, Jeroen   +3 more
core   +1 more source

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