Modeling method for electromagnetic, temperature rising, mechanical and electronic coupling system based on hybrid excitation six-phase claw-pole generator

Abstract

The invention relates to a modeling method for electromagnetic, temperature rising, mechanical and electronic coupling system based on a hybrid excitation six-phase claw-pole generator. The modeling method is characterized by comprising the following steps of 1, building a stator voltage matrix equation and an excitation coil voltage equation according to electromagnetic characteristics; 2, building a stator voltage matrix equation according to rectification characteristics of the system; 3, building an electromagnetic torque equation and a mechanical motion equation according to mechanical characteristics; 4, building a PWM duty ratio and an excitation coil voltage equation according to excitation current control characteristics of the system; 5, predicting a heating time constant and steady state temperature rise in a motor temperature rise state spatial expression by using a neural network; 6, correcting parameters of stator winding resistance and excitation winding resistance in anelectromagnetic characteristic model of the generator by using temperature rise as a coupling link; and 7, forming a temperature rising, mechanical, uncontrolled rectifier bridge, excitation currentcontrolled, and electromagnetic characteristic coupled mathematic model based on the steps 1-6. The method provided by the invention is high in accuracy and reliability.

Description

technical field [0001] The invention relates to a claw pole generator system modeling technology, in particular to a modeling method of an electromagnetic, temperature rise, mechanical and electronic coupling system based on a hybrid excitation six-phase claw pole generator. Background technique [0002] As one of the main power sources of the car, the generator supplies power to the car electrical load and also supplies power to the battery. The claw pole generator has the advantages of simple manufacture, low cost, and high power generation efficiency, and is widely used in the automotive industry where low voltage and high current are required. The claw pole generator mainly has two structural forms: electric excitation and permanent magnet type. The electric excitation claw pole generator controls the internal air gap flux of the motor by adjusting the magnitude of the excitation current, and then realizes the constant output voltage of the generator during variable load...

AI Technical Summary

Problems solved by technology

Based on the hybrid excitation six-phase claw pole generator system involves temperature rise characteristics, electromagnetic characteristics, mechanical characteristics and electronic characteristics, and various characteristics have coupling effects, it is difficult to guarantee the accuracy and reliability of the mathematical model ign

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