Zobrazeno 1 - 10
of 1 347
pro vyhledávání: '"DC offset"'
Autor:
Abdelhammid Kherbachi, Ahmed Bendib, Aissa Chouder, Hafiz Ahmed, Mohamed Benbouzid, Saad Motahhir
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-22 (2024)
Abstract Under the presence of nonlinear load, the most existing virtual impedance (VI) methods-based control solution performs poorly in reactive power sharing among droop-operated VSIs in microgrids (MGs). This may be due to the involved estimation
Externí odkaz:
https://doaj.org/article/09bfc0ec5b5847b1b1b5375c2dd32be6
Publikováno v:
Journal of Telecommunications and Information Technology, Vol 2, Iss 2 (2024)
In this paper, channel estimation capabilities of a multiple-input multiple-output (MIMO) system using superimposed training sequences are investigated. A new expression for estimation-error variance is derived. It is shown that the training sequence
Externí odkaz:
https://doaj.org/article/c4988bb43e1c4c498691de69ee854f05
Autor:
Wei-Ping Hung, Chia-Hung Chang
Publikováno v:
Sensors, Vol 24, Iss 17, p 5555 (2024)
This paper presents a real-time and non-contact dual-mode embedded impulse-radio (IR) ultra-wideband (UWB) radar system designed for microwave imaging and vital sign applications. The system is fully customized and composed of three main components,
Externí odkaz:
https://doaj.org/article/c0e37cad6cf0400f951a0c45d9b033e7
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 904-911 (2023)
The injection of dc current offset into ac networks may impacted the lifespan of the distribution system equipment including isolation transformers and measurement devices and in serious event may cause equipment’s malfunction. This paper intents t
Externí odkaz:
https://doaj.org/article/79c1c1a119a54637b6cf068ad5e3f131
Autor:
Tuynh Van Pham, Anh Tan Nguyen
Publikováno v:
Inventions, Vol 9, Iss 2, p 44 (2024)
In this paper, an improved speed sensorless control method including the maximum power point tracking (MPPT) algorithm for grid-connected squirrel-cage induction generator (SCIG) wind turbine systems using modified reduced-order generalized integrato
Externí odkaz:
https://doaj.org/article/2a88a8d763d34e96b5d373b60c39c454
Publikováno v:
Energies, Vol 17, Iss 4, p 905 (2024)
This paper presents a novel method for the removal of dual decaying DC offsets (DDCOs) to enhance discrete Fourier transform-based phasor estimation. The method proposed in this paper uses the sum of even samples and the sum of odd samples from the i
Externí odkaz:
https://doaj.org/article/697646cd76554f33bd6479dedf1b321f
Akademický článek
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Publikováno v:
IEEE Access, Vol 11, Pp 111200-111211 (2023)
Synchronization is a critical aspect of integrating renewable energy sources and inverter-based power plants into the electrical grid. Phase-Locked Loops (PLLs) are widely used for this purpose, providing rapid and accurate phase and frequency estima
Externí odkaz:
https://doaj.org/article/c358825ed3d74de884e26322804ecb6f
Publikováno v:
Journal of Modern Power Systems and Clean Energy, Vol 11, Iss 5, Pp 1529-1539 (2023)
The bipolar low-voltage DC (LVDC) distribution system has become a prospective solution to better integration of renewables and improvement of system efficiency and reliability. However, it also faces the challenge of power and voltage imbalance betw
Externí odkaz:
https://doaj.org/article/00b9866d714f421caa1a0ecd46133530
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 839-847 (2022)
Self-excited induction generator (SEIG)-based wind energy conversion systems (WECS) are very popular for feeding stand-alone loads in remote areas where there is no grid. SEIG needs adjustable reactive power to regulate terminal voltage and frequency
Externí odkaz:
https://doaj.org/article/f8fbfd56e1b94e8792f5e307e7f7cd12