Results 221 to 230 of about 160,624 (315)

Towards a dynamic flow calculation method based on Schur complement for natural gas network

open access: yesEnergy Internet, EarlyView.
Abstract The energy transfer process of natural gas network (NGN) has remarkable dynamic characteristics. However, the model of the gas network dominated by partial differential equations (PDEs) is challenging to analyse due to its heterogeneous properties, high dimensionality, and significant non‐linearity.
Bohan Shi   +5 more
wiley   +1 more source

Co‐simulations of induction machines coupled with a radial ball bearing for mechanical defects analysis

open access: yesIET Electric Power Applications, EarlyView.
This paper presents a multiphysics co‐simulation approach to study the behaviour of a 2‐D finite‐element model and a magnetic equivalent model of an induction machine, both, respectively, coupled with a mechanical radial ball bearing model. The study generates synthetic vibration and current signals to investigate the effects of misalignment caused by ...
Nada El Bouharrouti   +6 more
wiley   +1 more source

Positive corona discharge of rod‐plate electrodes in high‐speed airflow

open access: yesHigh Voltage, EarlyView.
Abstract The characteristics of positive corona discharge of rod electrode in high‐speed airflow are studied in this paper. The experiments were carried out in a wind tunnel with a maximum flow speed of 100 m/s in a dark room. The discharge voltage and current were recorded and the corona patterns were captured by a digital single lens reflex (DSLR ...
Qiang Wu   +5 more
wiley   +1 more source

Modelling and analysis of transformers considering ultra‐wide band frequency‐dependent parameters for high altitude electromagnetic pulse

open access: yesHigh Voltage, EarlyView.
Abstract Transformers are widely distributed and extremely important energy conversion equipment in the power system. However, the high altitude electromagnetic pulse (HEMP) can induce a steep pulse voltage with a peak value of up to thousands of kilovolts on the overhead line, and the frequency is up to 100 MHz, which is easy to damage the transformer
Han Wu   +5 more
wiley   +1 more source

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