The durability and stability of battery power output can affect the navigation status of large new energy elec-tric ships.Therefore,a fast charging control method for batteries was studied.Based on actual charging and discharging data and fitting results of cycle conditions,construct an equivalent circuit for large new energy electric ship batteries,analyze the operating status and output of the batteries;By determining the objective function and constraint conditions for fast battery charging control,the objective function is input into a fuzzy controller to analyze its impact on battery voltage.After clarify-ing the fuzzy rules,the objective function is calculated.By improving the cuckoo algorithm to optimize the calculation res-ults and obtain the best control results.The test results show that under both transient response and load dynamic response operating conditions,this method can effectively complete battery charging control,making the charging output voltage as close as possible to the ideal output voltage,ensuring that the current is within the allowable maximum continuous charging current range.
关键词
新能源/电动船舶/电池快速充电/控制方法/等效电路/目标函数
Key words
new energy/electricships/fast charging of batteries/control methods/equivalent circuit/objective function
维普
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