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Primary Frequency Control with an Air Handling Unit

open access: yesEnergies
The green energy transition threatens stability of the power grid due to associated reduction in grid synchronous inertia. Primary frequency control (PFC) can compensate for the challenge; however, sufficient procurement of primary frequency capacity ...
Niko Karhula   +5 more
doaj   +1 more source

A microcontroller based voltage space vector modulator suitable for induction motor drives [PDF]

open access: yes, 1999
Pulse width modulation techniques (PWM), introduced two decades ago, are the most used methods to control the voltage and frequency supplied to electrical AC machines.
Couto, Carlos   +2 more
core  

A New Layer Casting System for Ceramic Laser Rapid Prototyping Apparatus [PDF]

open access: yes, 2008
In the existing Ceramic Laser Fusion system, slurry is fed on the high temperature surface of the green part; therefore, a part of water infiltrates into the green block and vaporizes before the process of layer casting.
Chiu, M. L., Huang, P. H., Yen, H. C.
core   +1 more source

Intelligent Compact Drive System with a Synchronous Variable Reluctance Motor

open access: yesAdvances in Electrical and Electronic Engineering, 2004
The increase of energy costs underlines the need to use more efficient drive systems. One of the best solutions to reduce energy costs is the use of variable speed drives.
Ioan Adrian Viorel   +3 more
doaj  

Energy-Saving Inertial Drive for Dual-Frequency Excitation of Vibrating Machines

open access: yesEnergies, 2020
The low energy efficiency and excessive power of electric motors of large-scale vibrating machines for processing bulk materials motivated a new design of the inertial drive.
Volodymyr Gursky   +3 more
doaj   +1 more source

Current Control of Electrolytic Capacitor-Less Variable Frequency Drive System for Synchronous Reluctance Motors Based on Power Balancing and Compensation

open access: yesIEEE Access
The electrolytic capacitor-less variable frequency drive scheme using film capacitors to replace electrolytic capacitors has been partially applied in the field of washing machines and air conditioners driven by permanent magnet synchronous motors, due ...
Weican Yan   +5 more
doaj   +1 more source

Feasibility of a Simple Small Wind Turbine with Variable-Speed Regulation Made of Commercial Components [PDF]

open access: yes, 2013
The aim of this study was to propose and evaluate a very small wind turbine (VSWT) that competes with commercial grid-connected VSWTs in terms of simplicity, robustness and price.
Andrés Bravo Cuesta   +6 more
core   +3 more sources

Resonance overvoltage control algorithms in long cable frequency conversion drive based on discrete mathematics

open access: yesOpen Physics, 2020
In order to solve the problem that the long cable variable voltage and variable frequency (VVVF) system does not adopt an effective capacitor voltage sharing control method, resulting in a poor effect of resonance overvoltage control, the resonance ...
Deng Yonghong, Zhang Quanzhu
doaj   +1 more source

Application of frequency variableasynchronous motors to precision control of satellite antenna [PDF]

open access: yes, 2017
Приведені кінематичні розрахунки модернізованого азимутального приводу супутникової антени із застосуванням асинхронних електродвигунів з частотним регулюванням швидкості. Обгрунтована доцільність застосування таких двигунів в приводах супутникових антен.
Nakonetchnyj, Yurij   +7 more
core  

Experimental comparison of induction and synchronous reluctance electric drive performance [PDF]

open access: yes, 2015
Работа имеет целью экспериментальное сравнение конструктивных и энергетических характеристик современных асинхронных двигателей (АД) отечественного и зарубежного производства (ABB) и разработанного авторами синхронного реактивного двигателя (СРД) в ...
Dmitrievskii, V. A.   +11 more
core  

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