Modeling and Control Simulation of Integrated Heating System for Power Batteries
In order to improve the performance of vehicle power battery in low temperature environment,a battery heating system with positive temperature coefficient(PTC)thermistor as the main heating source and the waste heat of the air conditioning system as the auxiliary heat source was designed.Based on the heat transfer process of the proposed system,a heat transfer mathematical model was established,and AMEsim and MATLAB software were used to establish a simulation model of the proposed system.The process of battery heating had the characteristics of large delay and slow response.In order to improve the response speed of the system,the control strategy of PTC and water pump motor was designed based on the model predictive control algorithm.The simulation results under CLTC-P condition show that the heating rate of the battery can be increased by using the waste heat of the air condi-tioner.Compared with PID control,the model predictive control reduces the working time of the heater by 106 sec-onds and the heating energy consumption by 0.07 kWh.
vehicle engineeringnew energy vehiclesthermal managementbattery temperature risemodel predic-tive control
万方数据
维普
