Results 21 to 30 of about 5,898 (221)

On the construction of a digital transfer function from its real part on unit circle [PDF]

open access: yes, 1982
It is shown in this correspondence that the system function H(z) of a linear time invariant (LTI) causal digital filter with real impulse response coefficients can be obtained from the real part of its frequency response HR(ejω) given in the form of a ...
Mitra, S. K., Vaidyanathan, P. P.
core   +1 more source

The Definition of Power Grid Strength and Its Calculation Methods for Power Systems with High Proportion Nonsynchronous-Machine Sources

open access: yesEnergies, 2023
This paper studies the definition and calculation method of power grid strength in the environment of high-proportion nonsynchronous-machine sources, focusing on the effect of nonsynchronous-machine sources on voltage support strength and frequency ...
Zheng Xu   +3 more
doaj   +1 more source

Parametric Macromodels of Differential Drivers and Receivers [PDF]

open access: yes, 2005
This paper addresses the modeling of differential drivers and receivers for the analog simulation of high-speed interconnection systems. The proposed models are based on mathematical expressions, whose parameters can be estimated from the transient ...
Claudio Siviero   +4 more
core   +3 more sources

Thévenin’s Battery Model Parameter Estimation Based on Simulink

open access: yesEnergies, 2022
Lithium-ion batteries (LIB) proved over time to be one of the best choices among rechargeable batteries. Their small size, high energy density, long life, and low maintenance need make them a prominent candidate for the role of the most widespread energy
Giulio Barletta   +2 more
doaj   +1 more source

The optimal passive filters to minimize voltage harmonic distortion at a load bus [PDF]

open access: yes, 2005
This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted.
Zobaa, AF
core   +1 more source

State of Charge Estimation of Lithium-Ion Batteries Over Wide Temperature Range Using Unscented Kalman Filter

open access: yesIEEE Access, 2018
With the development of electric vehicles in recent years, lithium-ion batteries have been widely used. Accurate state of charge (SOC) estimation plays an important role in the safety of electric vehicles.
Xiaogang Wu, Xuefeng Li, Jiuyu Du
doaj   +1 more source

Optimal passive filter design for effective utilization of cables and transformers under non-sinusoidal conditions [PDF]

open access: yes, 2014
Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms value but also frequency of the load current.
Aleem, SHEA   +3 more
core   +1 more source

Real-Time Simulation of Hybrid Modular Multilevel Converters Using Shifted Phasor Models

open access: yesIEEE Access, 2019
The real-time simulation of modular multilevel converter (MMC) is essential to the evaluation and validation of its control and protection systems.
Yingdong Wei   +4 more
doaj   +1 more source

Online Estimation of Li-ion Battery SOC for Electric Vehicles Based on An Improved AEKF [PDF]

open access: yesE3S Web of Conferences, 2019
The purpose of this paper is to discuss how to eliminate the influence of noise time -varying characteristics on the accuracy of SOC estimation. Based on the matlab/simulink platform, the Thevenin equivalent circuit model of the battery is built, and an ...
Feng Kaihui   +3 more
doaj   +1 more source

Capacitive compensation at nonsinsoidal buses based on IEEE Std. 18-1992 [PDF]

open access: yes, 2003
This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted.
Zobaa, AF
core   +1 more source

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