摘要
Electric vehicle power battery consistency is the key factor affecting the performance of power batteries. it is not scientific to evaluate the consistency of the battery depending on voltage or capacity. In this paper, multi- parameter evaluation method for battery consistency based on principal component analysis is proposed. Firstly, the characteristic parameters of battery consistency are analyzed, the principal component score can be used as the basis for evaluating the consistency of the battery. Then, the function that multi-parameter evaluation of battery consistency is established. Finally, battery balancing strategy based on fuzzy control is developed. The basic principle of fuzzy control is to fuzzy the input quantity based on expert knowledge, and the fuzzy control auantitv is obtained bv fuzzy control rule_ Th~ re.~nlt.~ ~ro v^rlfiocl hv t,~t
Electric vehicle power battery consistency is the key factor affecting the performance of power batteries.it is not scientific to evaluate the consistency of the battery depending on voltage or capacity. In this paper, multiparameter evaluation method for battery consistency based on principal component analysis is proposed. Firstly,the characteristic parameters of battery consistency are analyzed, the principal component score can be used as the basis for evaluating the consistency of the battery. Then, the function that multi-parameter evaluation of battery consistency is established. Finally, battery balancing strategy based on fuzzy control is developed. The basic principle of fuzzy control is to fuzzy the input quantity based on expert knowledge, and the fuzzy control quantity is obtained by fuzzy control rule. The results are verified by test.
作者
WANG Liye
WANG Lifang
LIAO Chenglin
ZHANG Wenjie
王立业;王丽芳;廖承林;张文杰(Key Laboratory of Power Electronics and Electric Drive,Institute of Electrical Engineering Chinese Academy of Sciences,Beijing 100190,China;Beijing Co-Innovation Center for Electric Vehicles,Beijing 100081,China)
基金
the Special Research Fund for the National Key Research and Development Program of China(No.2016YFB0100107)
the National Natural Science Foundation of China(No.51677183)
