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Changes for page 3.4 Battery parameters

Last modified by Admin on 2025/04/09 12:04
From version 24.1
edited by Admin
on 2024/12/02 15:25
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To version 18.1
edited by Admin
on 2024/12/02 15:15
Change comment: There is no comment for this version

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45 45  * Scale the final SOC – flag to scale the battery SOC by the following values;
46 46  * Internal SOC corresponding to 0% – battery SOC that sets to be 0%;
47 47  * Internal SOC corresponding to 100% – battery SOC that sets to be 100%.
48 -* Uocv = Uocv(SOC, t °C) – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries, can be established experimentally – see [[3.4.6 Cell analysis>>doc:||anchor="H3.4.6Cellanalysis"]]);
48 +* Uocv = Uocv(SOC, t °C) – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries, can be established experimentally – see [[3.4.6 Cell analysis>>doc:||anchor="3.4.6 Cell analysis"]]);
49 49  * Linear zone – linear zone of dependence Uocv = Uocv(SOC, t °C):
50 50  ** Uocv ,,[point 1],, – starting point of the linear zone;
51 51  ** Uocv ,,[point 2],, – end point of the linear zone;
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91 91  * Minimum SOC – minimum cell SOC value for resistance calculation;
92 92  * Maximum SOC – maximum cell SOC value for resistance calculation.
93 93  
94 -The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance/2 to “Maximum resistance factor” × Resistance, where "Resistance" is the nominal resistance of the cell (see [[3.4.1 Cell defaults>>doc:||anchor="H3.4.1Celldefaults"]]). If the calculated resistance value is greater than the value (Maximum resistance factor × Resistance), the updated resistance value will be equal to the value (Maximum resistance factor × Resistance).
94 +The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance/2 to “Maximum resistance factor” × Resistance, where "Resistance" is the nominal resistance of the cell (see [[3.4.1 Cell defaults>>doc:||anchor="3.4.1 Cell defaults"]]). If the calculated resistance value is greater than the value (Maximum resistance factor × Resistance), the updated resistance value will be equal to the value (Maximum resistance factor × Resistance).
95 95  
96 96  == 3.4.4 Cell balancing ==
97 97  
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115 115  * the voltage on the cell is higher than the starting voltage of the balancing;
116 116  * the difference between the cell voltage and the minimum voltage among the cells of the battery is greater than the balancing threshold.
117 117  
118 -If the BMS Logic board overheats, then the balancing of the cells connected to this board will not be performed (see [[3.6.18 Logic high temperature protection>>doc:drafts.BMS Main 2\.1.3\. Configuration.3\.6 Battery protection.WebHome||anchor="H3.6.18Logichightemperatureprotection"]]).
118 +If the BMS Logic board overheats, then the balancing of the cells connected to this board will not be performed (see [[3.6.18 Logic high temperature protection>>doc:drafts.BMS Main 2\.1.3\. Configuration.3\.6 Battery protection.WebHome||anchor="3.6.18 Logic high temperature protection"]]).
119 119  
120 120  To change the cell balancing parameters, select the menu "Cell → Cell balancing":
121 121  
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164 164  
165 165  == 3.4.6 Cell analysis ==
166 166  
167 -Discharge characteristics of the battery – the dependence Uocv = Uocv (DOD) – is used to determine the tabular dependence Uocv = Uocv (SOC, t °C) (see [[3.4.2 SOC estimation>>doc:||anchor="H3.4.2SOCestimation"]]), which is necessary for calculating the state of charge of the battery.
167 +Discharge characteristics of the battery – the dependence Uocv = Uocv (DOD) – is used to determine the tabular dependence Uocv = Uocv (SOC, t °C) (see [[3.4.2 SOC estimation>>doc:||anchor="3.4.2 SOC estimation"]]), which is necessary for calculating the state of charge of the battery.
168 168  
169 169  The BMS Main 2.x board can automatically determine the battery discharge characteristic.
170 170  
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274 274  
275 275  == 3.4.9 SOC correction ==
276 276  
277 -The BMS Main 2.x board can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[3.4.2 SOC estimation>>doc:||anchor="H3.4.2SOCestimation"]]).
277 +The BMS Main 2.x board can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[3.4.2 SOC estimation>>doc:||anchor="3.4.2 SOC estimation"]]).
278 278  
279 279  To configure parameters for periodically correcting the battery state of charge, select the menu "Cells → SOC correction":
280 280