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@@ -91,8 +91,9 @@ class SafetyWarning:
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if min(cellshort_sum)<2*self.param.LeakCurrentLv2:
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cellshort_num=cellshort_sum.index(min(cellshort_sum))+1
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cellshort=df_short_current['cellshort'+str(cellshort_num)] #获取内短路电芯的所有漏电流值，且最小值<阈值
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+ cellshort_last = cellshort.iloc[-1] #最近一次的漏电流
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cellshort_sum.remove(min(cellshort_sum)) #删除最小值，并判断其他所有电芯内短路电流>阈值
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- if min(cellshort)<self.param.LeakCurrentLv2 and min(cellshort_sum)>self.param.LeakCurrentLv2:
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+ if min(cellshort)<self.param.LeakCurrentLv2 and min(cellshort_sum)>self.param.LeakCurrentLv2 and cellshort_last<self.param.LeakCurrentLv2/2:
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cellshortfault=1
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else:
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cellshortfault=0
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@@ -116,7 +117,7 @@ class SafetyWarning:
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if not df_short1.empty:
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for i in range(3):
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deltvolt_init=eval(df_short1.loc[0,'short_current'])
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- deltvolt_rst=np.array(deltvolt_init[0])
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+ deltvolt_rst=np.array(deltvolt_init[i])
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for j in range(len(df_short1)):
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try:
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deltvolt=eval(df_short1.loc[j+1,'short_current'])
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@@ -124,20 +125,30 @@ class SafetyWarning:
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except:
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continue
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- # 故障判断
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- if min(deltvolt_rst)<-6 and i>1:
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+ #获取压降最大电芯的最近一次压降值
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+ try:
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+ deltvolt_last = eval(df_short1.iloc[-1]['short_current'])
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+ deltvolt_last_list = list(deltvolt_last[i])
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+ except:
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+ deltvolt_last_list = [0]*self.param.CellVoltNums
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+
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+ # 故障判断:1.压降累计最大>6mV，次大<3mV，2.最近一次对应电芯的压降>3mV，且离群
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+ if min(deltvolt_rst)<-6:
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deltvolt_rst1=list(deltvolt_rst)
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+ deltvolt_min_index = list(deltvolt_rst).index(min(deltvolt_rst))
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+ deltvolt_last_list1 = deltvolt_last_list
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+ deltvolt_last_list1.pop(deltvolt_min_index)
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deltvolt_rst1.remove(min(deltvolt_rst))
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- if min(deltvolt_rst1)>-3:
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+ if min(deltvolt_rst1)>-3 and deltvolt_last_list[deltvolt_min_index]<-3 and min(deltvolt_last_list1)>-2.5:
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cellshortfault1=1
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- cellshort_num=list(deltvolt_rst).index(min(deltvolt_rst))+1
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+ cellshort_num=deltvolt_min_index+1
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break
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- elif min(deltvolt_rst)<-6:
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- deltvolt_rst1=list(deltvolt_rst)
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- deltvolt_rst1.remove(min(deltvolt_rst))
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- if min(deltvolt_rst1)>-3:
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- cellshortfault1=1
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- cellshort_num=list(deltvolt_rst).index(min(deltvolt_rst))+1
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+ # elif min(deltvolt_rst)<-6:
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+ # deltvolt_rst1=list(deltvolt_rst)
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+ # deltvolt_rst1.remove(min(deltvolt_rst))
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+ # if min(deltvolt_rst1)>-3:
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+ # cellshortfault1=1
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+ # cellshort_num=list(deltvolt_rst).index(min(deltvolt_rst))+1
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else:
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cellshortfault1=0
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