Results 41 to 50 of about 37,496 (307)
A Precise and Efficient Frequency Estimation Method for Single-Phase Grid With DC Offset
IEEE AccessThe frequency component of the grid voltage plays a crucial role in ensuring the stable operation of power electronic grid-connected systems. When the grid voltage contains a DC offset disturbance, the parameter estimation methods in the literature ...
Ji Xiao +3 more
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New Directions for Adult and Continuing Education, EarlyView.ABSTRACT This article examines the evolving role of organizational leadership amidst the rapid advancements in artificial intelligence (AI). It explores a broadly experienced and documented crisis in leadership, due in part to the disruptive nature of AI and emerging technology.
Rachel Wlodarsky, Davin Carr Chellman
wiley +1 more source
DC Offset Current Compensation Method of Transformeless Fuel Cell/PV PCS
, 2013 This paper proposes DC offset current compensation method of transformerless fuel cell/PV PCS. DC offset current is generated by the unbalanced internal resistance of the switching devices in full bridge topology.
최익 +6 more
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InventionsIn 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 integrator ...
Tuynh Van Pham, Anh Tan Nguyen
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A CMOS VGA With DC Offset Cancellation for Direct-Conversion Receivers [PDF]
IEEE Transactions on Circuits and Systems I: Regular Papers, 2009 A CMOS dB-linear variable gain amplifier (VGA) with a novel I/Q tuning loop for dc-offset cancellation is presented. The CMOS dB-linear VGA provides a variable gain of 60 dB while maintaining its 3-dB bandwidth greater than 2.5 MHz. A novel exponential circuit is proposed to obtain the dB-linear gain control characteristics.
Zheng, Yuanjin +2 more
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Energies, 2020 This paper presents an offset-free global tracking control algorithm for the input-constrained plants modeled as controllable and open-loop strictly stable linear time invariant (LTI) systems.
Kyunghwan Choi +2 more
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International Transactions on Electrical Energy Systems, 2022 This paper proposes a flexible digital control scheme for isolated phase-shift full-bridge (PSFB) converters. The required transformer suffers from inevitable imbalance of magnetic flux resulting in an increased magnetizing DC-offset current that ...
Angelika Neumann +4 more
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Applied Sciences, 2022 This paper discusses the design of a new self-balancing amplifier of an AC component power characterized by a minimal output DC offset. The design of the amplifier is based on semiconductor technology and intended for application in low-frequency analog ...
Piotr Żółtowski, Witold Bużantowicz
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Iterative Synchronisation and DC-Offset Estimation using Superimposed Training [PDF]
2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007 In this paper, we propose a new iterative approach for superimposed training (ST) that improves synchronisation, DC-offset estimation and channel estimation. While synchronisation algorithms for ST have previously been proposed in A.G. Orozco-Lugo et al. (2004), J.K. Tugnait and W. Luo (2004) and E.
Syed M. A. Moosvi +2 more
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The Gut–Heart Axis in Systemic Sclerosis: Evidence From a Large Prospective Early Disease Cohort
Arthritis Care &Research, EarlyView.Objective Cardiac involvement significantly impacts prognosis in systemic sclerosis (SSc), highlighting the need for early risk stratification. Gastrointestinal (GI) symptoms are common and often manifest early. Emerging data suggest a link between GI and cardiac manifestations, possibly through shared mechanisms like dysautonomia.
Francesca R. Di Ciommo +9 more
wiley +1 more source