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Changes for page 3.3 Control

Last modified by Admin on 2025/12/11 10:32
From version 69.1
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102 102  * Ignore the linear zone – a flag to ignore linear SOC zone while correction (recommended to be unset);
103 103  * Last correction timestamp – time when last correction was made.
104 104  
105 -=== SOH estimation ===
106 -
107 -The BMS Main 3 device calculates the state of health of the battery (SOH) using two algorithms:
108 -
109 -* By effective capacity;
110 -* By total charge-.
111 -
112 -In "By effective capacity" mode SOH is calculated as a ratio of effective capacity to nominal capacity. Effective capacity is estimated to DOD value when battery SOC reaches 0%, so SOH is recalculated each full battery discharge.
113 -
114 -In "By total charge-" mode SOH is calculated as a linear function of "Total charge-" counter. While "Total charge-" constantly increases during battery operation, SOH will be linearly decrease at the same time. This mode requires a confirmed cell data to set the expecting SOH at the expecting amount of charge-.
115 -
116 -To configure parameters for battery state of health calculation, select the "Control → SOH correction" section:
117 -
118 -[[image:1765447975228-766.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]In this section:
119 -
120 -* Algorithm:
121 -** By effective capacity;
122 -** By total charge-;
123 -* Total charge: Charge- –  total amount of charge- for expected SOH;
124 -* Total charge: SOH –  expected SOH value at the total amount of charge-.
125 -
126 126  === Resistance estimation ===
127 127  
128 128  Calculation of the resistance of cells is carried out in two ways. The first method is used when the battery passes from a relaxation state to a charge or discharge state, wherein the cell resistance value
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