Changes for page 3.3 Control
Last modified by Admin on 2025/04/09 12:14
Summary
-
Page properties (1 modified, 0 added, 0 removed)
Details
- Page properties
-
- Content
-
... ... @@ -106,7 +106,7 @@ 106 106 107 107 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 108 108 109 -{{formula fontSize=" SMALL" imageType="PNG"}}109 +{{formula fontSize="NORMAL" imageType="PNG"}} 110 110 R = \frac{U-U_{ocv}}{I_{stable}} 111 111 {{/formula}} 112 112 ... ... @@ -114,17 +114,12 @@ 114 114 115 115 The second method is used for a stepwise change in the current through the cell, while the value of the cell resistance: 116 116 117 -{{formula fontSize="SMALL"}} 118 -R = \frac{U_2-U_1}{I_{stable2}-I_{stable1}} 119 -{{/formula}} 117 +R = (U,,2,,-U,,1,,) / (I,,stable2,,-I,,stable1,,) provided that | I,,stable2,,-I,,stable1,, | > 0.2 × Q,,max,, 120 120 121 -provided that 122 122 123 -{{formula fontSize="SMALL"}} 124 -| I_{stable2}-I_{stable1} | > 0.2 × Qmax 125 -{{/formula}} 120 +(Q,,max,, is the maximum cell capacity), 126 126 127 -where Q,,max,,—themaximum cell capacity,U,,2,, —voltage on the cell at the moment when the stabilized current I,,stable2,, is flowing through it; U,,1,,—the voltage on the cell at the moment when the stabilized current I,,stable1,, flowing through it.122 +where U,,2,, is the voltage on the cell at the moment when the stabilized current I,,stable2,, is flowing through it; U,,1,, – the voltage on the cell at the moment when the stabilized current I,,stable1,, flowing through it. 128 128 129 129 The stabilized current I,,stable,, = I, if during the stabilization time the instantaneous current I is in the range from 0.95 × I to 1.05 × I. 130 130 ... ... @@ -140,7 +140,7 @@ 140 140 * Minimum SOC – minimum cell SOC value for resistance calculation; 141 141 * Maximum SOC – maximum cell SOC value for resistance calculation. 142 142 143 -The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance 138 +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 [[Common settings>>doc:||anchor="HCommonsettings"]]). 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). 144 144 145 145 === Low SOC (signal) === 146 146