نتایج جستجو برای: electrical parameters of synchronous generators

تعداد نتایج: 21194955  

Journal: :Eastern-European Journal of Enterprise Technologies 2021

Power is generated in a variety of ways, including renewable energy, nuclear power, and burning fossil fuels. The majority our power currently by fuels, mostly natural gas coal, to spin turbines attached an electromagnetic generator. main advantage AC generation that the voltage levels can be altered up down with transformers, allowing electricity sent across long distances loads demand it. exc...

Ali ajami, Shirmohammadi ramin

This paper provides a review of OTC and P&O; MPPT controllers used for extracting maximum power from the wind energy systems using permanent magnet synchronous generators. Hence, the output power of wind energy system varies continually as wind speed changes, it is desirable to determine the one optimal generator speed that ensures maximum energy yield. Thus, it is important to include a con...

2008
Kenta Nakajima Tomotaka Kimura Yasuyuki Shirai

Superconducting generators (SCGs) have many advantages as compared with conventional ones, and practical use is expected. Before practical use, it is necessary and important to have a good grasp of the electrical characteristics of SCG under short-circuit conditions. And it is desirable that, relations between characteristics and structureparameters of generators are explicitly and simply expre...

Journal: :Modeling, Identification and Control: A Norwegian Research Bulletin 1980

2011
Michal Sikora Radek Vlach Petr Navrátil

This paper is concerned with unconventional water cooling that is primarily intended for medium-power synchronous generators. A configuration of the proposed cooling was briefly described here. A way how to estimate the main thermal resistance related to the new water cooling system was presented here. A small induction motor was selected for practical verification of the proposed cooling conce...

A. Abrishamifariii E. Abirii M.R. Salehiii

Active filters have proven to be more effective than passive techniques to improve power quality and to solve harmonic and power factor problems due to nonlinear loads. This paper proposes a control scheme based on the instantaneous active and reactive power. The inverter of this active filter is a three-phase, two-level converter. Space vector technique is used as modulators and pattern genera...

Journal: :IEEE open journal of industry applications 2023

This paper addresses the new pulsed power load requirements for shipboard systems introduced in 2018 revision of military standard 1399 section 300, part 1. With number loads increasing onboard modern ships, AC distribution bus is susceptible to voltage and frequency abnormalities due limited inertia synchronous generators powering ship. In this strict limits imposed by are met with a system-le...

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