AbstructSmall-signal Thevenin and Norton equivalent circuits seen looking into each terminal of the BJT and the FET are described. The application of these! circuits to writing by inspection the expressions for gain, input resistance, and output resistance of multistage amplifiers is demonstrated. The application of the circuits to the noise analysis of devices is illustrated by the calculation...

Permanent Magnet Synchronous Generators are an emerging technology in wind power applications. A simplified Thevenin equivalent simulation model of a wind generator has been developed in the ATPDraw environment and validated by comparing its dynamics with that of a Matlab/Simulink detailed model. The simplified model includes also power electronic circuits, for interfacing the generator to a MV...

We discuss the most important and simple concept of basic circuit theory—the concept of the unideal source—or the Thevenin circuit. It is explained firstly how the Thevenin circuit can be interpreted in the algebraic sense. Then, we critically consider the common opinion that it is a linear circuit, showing that linearity (or nonlinearity) depends on the use of the port. The difference between ...

For the safe and fast recovery of line commutated converter based high-voltage direct current (LCC-HVDC) transmission systems after faults, a DC order optimization strategy is proposed. Considering constraint electric control quantities, with maximum active power transfer calculated by Thevenin equivalent parameters (TEPs) quasi-state equations LCC-HVDC systems. Meanwhile, to mitigate subsequen...

Parameter identification is the most fundamental task for model-based battery management system. However, there are some difficulties in completing this since of existing methods require at least one known parameter or a time-consuming offline procedure to extract parameters from measured data. Based on well-known thevenin equivalent circuit battery, paper determines unique purpose introducing ...

Studying the electromagnetic compatibility of an Unmanned Aerial Vehicle (UAV) using full-wave simulations is computationally challenging. A UAV can exhibit unintentional coupling from far-field sources as well in its close vicinity. For example, many applications, carries a payload that consists transmitting antenna to communicate/characterize receivers on ground. Therefore, there strong need ...

Remaining useful life prediction is of great significance for battery safety and maintenance. The remaining method, based on a physical model, has wide applicability high accuracy, which the research hotspot next generation method. In this study, methods were compared analyzed, model summarized. classified according to their different characteristics including electrochemical equivalent circuit...

Lithium-ion batteries (LIBs) are widely used in electric vehicles because of their high energy density and less pollution. As an important parameter the battery management system, accurate estimation state charge (SOC) can ensure distribution safe use battery. This paper obtains better accuracy from four aspects. First, model is established via Thevenin equivalent circuit model, parameters iden...

This paper proposes an online decentralized and data-driven method for synchronous generator rotor speed inertia estimation. First, analytical relationship between the terminal voltage/current phasors its internal is derived using Thevenin equivalent. The parameters of latter are obtained via a recursive estimator, which allows us to estimate generator’s from without need any information. Secon...