CAJ | 학술논문

研究不同蓄电池荷电状态（state of charge， SOC）的变化特征有助于在实际应用过程中对蓄电池类型进行选择。基于铅酸电池、磷酸铁锂电池、全钒液流电池3种典型蓄电池模型，采用电池容量修正过的改进安时计量法和改进安时-卡尔曼预测法（ Ah-Kal法），对各电池在不同充放电模式下，用MATLAB软件编程得到两种估算方法下的SOC变化曲线。通过SOC对比曲线可以发现铅酸电池的自放电较严重，循环寿命短；磷酸铁锂电池可迅速提供大功率；而全钒液流电池适合作为长期大容量储能支持。同时，改进安时计量法和Ah-Kal的估算结果基本相同，验证了Ah-Kal法的正确性。
연구불동축전지하전상태（state of charge， SOC）적변화특정유조우재실제응용과정중대축전지류형진행선택。기우연산전지、린산철리전지、전범액류전지3충전형축전지모형，채용전지용량수정과적개진안시계량법화개진안시-잡이만예측법（ Ah-Kal법），대각전지재불동충방전모식하，용MATLAB연건편정득도량충고산방법하적SOC변화곡선。통과SOC대비곡선가이발현연산전지적자방전교엄중，순배수명단；린산철리전지가신속제공대공솔；이전범액류전지괄합작위장기대용량저능지지。동시，개진안시계량법화Ah-Kal적고산결과기본상동，험증료Ah-Kal법적정학성。
It is helpful to make the reasonable choice on types of battery in actual application through studying on state of charge (SOC) of the different batteries.Based on the models of Lead-acid battery, LiFePO4Li-ion battery and Vanadium Redox Flow battery(VRB), the SOC of each battery was estimated through the improved Ah count-ing method and the method of combined improved Ah counting-Kalman filtering(Ah-kal method).Under the differ-ent charging or discharging modes, it obtained the curves of SOC with MATLAB software.It can be found that the Lead-acid battery has the serious self-discharge and short cycle life, the LiFePO4Li-ion battery could supply rapidly high power, and VRB has the large-capacity energy storage support for long-term.With the simulation results, it validates that the improved Ah counting method and Ah-Kal method have almost equal result .And it verifies the correctness of the Ah-Kal method.