METHOD AND APPARATUS FOR EVALUATING CONSISTENCY OF POWER BATTERY PACK

摘要

Provided in the present invention are a method and apparatus for evaluating the consistency of a power battery pack, applicable in solving the problem of partiality in evaluating the consistency of individual batteries in a power battery pack. The method comprises: calculating a capacity dispersion, an equivalent direct current resistance dispersion, and a voltage platform dispersion of the power battery pack on the basis of a characteristic parameter of the power battery pack; by using a predetermined evaluation weight value, calculating a weighted average of the dispersions to acquire a comprehensive evaluation factor of the power battery pack; and acquiring a comprehensive evaluation result of the power battery pack on the basis of the comprehensive evaluation factor, where the greater the comprehensive evaluation factor, the poorer the consistency of the power battery pack. Employment of the technical solution of the present invention allows for comprehensive evaluation of the consistency of the power battery pack, thus allowing for the acquisition of an accurate evaluation result, facilitating the completion of a comprehensive performance evaluation of battery packs, and providing the application of power batteries with reliable technical support. The present invention is funded by Task 2011AA05A109 of the National High-tech Research and Development Program (863 Program).