Simulation Analysis of Thermoelectric Power Generation System Considering Multiple Optimization Algorithms

For the purpose of realizing waste heat recovered, thermoelectric power generation system can be used to convert thermal into electrical energy, but existing research lacks the design of electrical model. Starting from the thermoelectric coupling mechanism, this article studies the principle of thermoelectric coupling from the perspective of heat transfer, the annular thermoelectric generator was modeled. Secondly, the finite element method is used to simulate and analyze the temperature of a single thermoelectric leg unit, and finally the temperature distribution and voltage distribution of a single thermocouple unit is obtained, and then the equivalent circuit model is obtained. Lastly, MATLAB/SIMULINK was used to conduct electrical modeling of the thermoelectric module and the rapid acquisition of thermal conversion to electricity was completed through comparison of three control optimization algorithms. The research results show that the finite element method can be effectively used to realize the power recovery of the thermoelectric power generation system. At the same time, the designed electrical model can complete the power collection. More important, advanced optimization algorithms can be used to quickly complete the power collection.