Battery characteristic simulating control method

Abstract

A battery characteristic simulating control method is characterized in that a battery model is equivalent to a voltage source series internal resistance form, and the battery simulating output voltageis the sum of the battery internal potential and the internal resistance voltage drop. According to the actually measured charge-discharge data of the battery, a curve of the charge-discharge state of charge and the battery terminal voltage is obtained. Based on the curve, a battery internal potential curve is fitted, wherein the horizontal and vertical coordinates of the curve are the state of charge and the internal potential of the battery respectively. During control, the battery capacity is determined by the integration of the real-time current of the battery with time, the real-time state of charge of the battery is calculated, and the internal potential of the battery is obtained by looking up a table. The equivalent internal resistance of the battery is obtained by dividing the charge-discharge voltage drop corresponding to the same state of charge by the double battery current. The simulating output voltage of the battery is given as the DC voltage of a control circuit, and closed-loop control is performed in cooperation with the real-time port voltage. Finally the output DC bus voltage of the control circuit is equal to the real-time port voltage of the simulated battery.

Description

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AI Technical Summary

Benefits of technology

This technology allows for flexibility when selecting which type of batteries are best suited based on their characteristics or needs. It saves money while also reducing costs compared with traditional methods like buying new ones that require purchasing them again later. Additionally it simplifies how controlling its performance has been achieved by making sure each specific part works properly.

Problems solved by technology

This patented describes how electric vehicles (EV) use stored electrical energy from solar panels or similar sources without generating greenhouse gases that can harm our environment. To solve this problem, an improved way called battery performance simulations was developed. These simulations aim to predict when certain conditions occur during charging cycles, allowing us to make better decisions related to optimizing vehicle design while reducing costs associated with purchasing specific type of batterles.

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