نتایج جستجو برای: small signal model

تعداد نتایج: 3054839  

Journal: :IEEE open journal of power electronics 2021

High voltage generation, is one of the main applications Cockcroft-Walton multiplier (CWVM), however recently this structure investigated to be used for high step-up DC-DC applications. This paper discusses dynamic behaviour and small-signal modelling a CWVM based converter investigates how switching strategy can affect performance converter. study firstly presents, new method, steady-state rel...

Journal: :IEEE Trans. Industrial Electronics 1998
Chihchiang Hua Jongrong Lin Chihming Shen

Photovolatic systems normally use a maximum power point tracking (MPPT) technique to continuously deliver the highest possible power to the load when variations in the insolation and temperature occur. It overcomes the problem of mismatch between the solar arrays and the given load. A simple method of tracking the maximum power points (MPP’s) and forcing the system to operate close to these poi...

Journal: :journal of sciences islamic republic of iran 0

in an axisymmetric co2-n2-h2o gas dynamic laser, let ? denote the intersection of the vertical plane of symmetry with the upper part of the (supersonic) nozzle. to obtain a maximal small signal gain, some authors have tested several families of curves for ?. to find the most general solution for ?, an application of pontryagin’s principle led to the conjuncture that the optimal ? must consist o...

Journal: :Electronics 2022

This paper presents the design of control system using a double DD coil structure. The is layered structure that consists two single coils, rotated to each other by 90°. A large-signal and small-signal model proposed IPT are designed for synthesis. derived from harmonic approximation extended describing functions (EDF). For model, voltage current schemes were purpose wireless battery charging. ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...

Journal: :journal of mining and environment 2014
maysam abedi kiomars mosazadeh hamid dehghani ahmad madanchizare

we have applied an automatic interpretation method of potential data called an-eul in unexploded ordnance (uxo) prospective which is indeed a combination of the analytic signal and the euler deconvolution approaches. the method can be applied for both magnetic and gravity data as well for gradient surveys based upon the concept of the structural index (si) of a potential anomaly which is relate...

2015
Li-Jun Qin

-In the micro-grid, droop control strategy simulates traditional power system droop characteristics , by changing the output of active and reactive power to control the output voltage frequency and amplitude, thus the micro-grid system can work at the stabilize voltage point in island operation mode . And the voltage is more or less with the grid-connect mode,so that the transition is smooth wh...

غفاریان مقرب, محمد هادی , محمودی, مرتضی, ملکوتی, محمد جعفر ,

To date, limited research has been done worldwide on uptake and translocation of nanoparticles (NPs) by plants. To evaluate such processes, soybean (Glycine max L.) was cultured in modified Hoagland nutrient solution containing Fe3O4 NPs with concentration of 60 mg/L, and 33 mg/L iron chelate (Fe-EDTA) was taken as control. After 28 days, the strength of magnetic signal was measured in differen...

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