نتایج جستجو برای: harmonic moving load

تعداد نتایج: 295346  

2012
Rushi R. Desai Amit N. Patel Vinod R. Gupta

The internal faults of transformer can be identified by various techniques. The proposed technique is by the analysis of no-load current and harmonic contents present in it. The no-load current of transformer is non-sinusoidal for sinusoidal input voltage. And hence it contains harmonics in healthy condition of transformer. But if transformer has any internal fault then the no-load current magn...

Journal: :IEEE Transactions on Power Systems 1991

2006
Bhim Singh Vishal Verma

It has been established that shunt active power filters are suitable for compensating harmonics in the current fed type harmonic producing loads, likewise the series active power filter (APF) are considered to be suitable for voltage fed type harmonics-producing load. This paper discusses the indirect current control approach in terms of its simplicity and effectiveness for the operation of a s...

2003
N. C. PERKINS

In the referenced paper [ 11, the author examines the stability of the planar, linear response of a suspended cable subjected to harmonic axial loading. The study is motivated by a desire to understand the dynamic stability of cables employed in structures such as cablestayed bridges or guy-towers. In these applications, the harmonic axial load derives from the dynamic reaction of the structure...

Journal: :ESAIM: Mathematical Modelling and Numerical Analysis 2005

Amirabolfazl Soratgar Firooz Bakhtiari-Nejad, Mahdi Vahabi Maysam Mirzaei

Determination and analysis of vibration behavior of structures for at least first few natural frequencies and mode shapes needs several sensors to be connected at different non node points and exciting the structure at one point. Other method for determination of first few mode shapes is to excite several points of the structure at once and sensing the response from one point.  Both methods nee...

Journal: :Energies 2022

Non-intrusive load monitoring takes place in residential and industrial contexts to disaggregate identify loads connected a distribution grid. This work studies the applicability effectiveness for AC railways, considering highly dynamic behavior of rolling stock as an electric load, immersed varying moving loads. Both voltage–current diagrams harmonic spectra were considered identification extr...

M.R Bahrami S Hatami,

In this paper, the free vibration analysis of moderately thick rectangular plates axially moving with constant velocity and subjected to uniform in-plane loads is investigated by the spectral finite element method. Two parallel edges of the plate are assumed to be simply supported and the remaining edges have any arbitrary boundary conditions. Using Hamilton’s principle, three equations of moti...

2015
Haiyan Wang

Large perceptual class motor load is the main production equipment of metallurgical enterprise, although has taken independent secondary substation power supply mode, but due to the influence of the impact load, Often appears on the bus voltage drop and low power factor and harmonic big problems, , this article is based on SVC compensation control mechanism, the sectional control mode, the prin...

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