Thevenin equivalent model

Min BG, Kresh JM, Fich S, Kostis JB, Welkowitz W (1978) Relation between computed zero-load aortic flow and cardiac muscle mechanics. J. Biomech 80 227-235 Sandler J, Dodge HT (1963) Left ventricular tension and stress in man. Circ Res 13 91 Shastri SJ (1969) A thevenin equivalent model of the left ventricle derived from hemodynamic measurements obtained by use of a ventricular assist pump. Ph D Thesis, New Brunswick, NJ Rutgers Univ... 

The modeling of an accumulator or battery of accumulators is a highly complex task. There are many different approaches, which will be more or less appropriate depending on the objectives reqnired of the model. In order to replicate electrical behavior similar to that of a battery, we nse a model in the form of an equivalent electrical circuit. Many different circuits are put forward in the existing body of literature Thevenin equivalent circnit, improved Thevenin equivalent circuit, FreedomCar, etc. In all cases, the parameters nsed for these models are determined experimentally. 

The Thevenin equivalent circuit is the simplest combination, since it is the association of an ideal voltage source and a resistor connected in series. This is a much more realistic way of modeling a lead-acid battery. Indeed, the resistor illustrates the voltage drop due to the current passing through the components of the battery. In the case of LABs, this instantaneous voltage drop mainly results from the low electrical conductivity of electrolyte and is proportional to the current. But, such a simple combination does not account for the polarization of the electrodes happening later on, when the battery is operated. 

According to this model, the SEI is made of ordered or disordered crystals that are thermodynamically stable with respect to lithium. The grain boundaries (parallel to the current lines) of these crystals make a significant contribution to the conduction of ions in the SEI [1, 2], It was suggested that the equivalent circuit for the SEI consists of three parallel RC circuits in series combination (Fig. 12). Later, Thevenin and Muller [29] suggested several modifications to the SEI model ... 

Thevenin s theorem states that a section of a linear circuit containing one or more sources and impedances can be replaced with an equivalent circuit model containing only one voltage source and one series-connected impedance, as shown in Figure 2.35. 

The Thevenin model is a relatively simple equivalent diagram for describing the electrical behavior of a battery. This model, represented by Figure 5.6, is frequently used because of its simphcity. It comprises an ideal voltage source Fq, an internal... 

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