Changes for page 3.3 Control
Last modified by Admin on 2025/04/09 12:14
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... ... @@ -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=" NORMAL" imageType="PNG"}}109 +{{formula fontSize="SMALL" imageType="PNG"}} 110 110 R = \frac{U-U_{ocv}}{I_{stable}} 111 111 {{/formula}} 112 112 ... ... @@ -114,12 +114,17 @@ 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 -R = (U,,2,,-U,,1,,) / (I,,stable2,,-I,,stable1,,) provided that | I,,stable2,,-I,,stable1,, | > 0.2 × Q,,max,, 117 +{{formula fontSize="SMALL"}} 118 +R = \frac{U_2-U_1}{I_{stable2}-I_{stable1}} 119 +{{/formula}} 118 118 121 +provided that 119 119 120 -(Q,,max,, is the maximum cell capacity), 123 +{{formula fontSize="SMALL"}} 124 +| I_{stable2}-I_{stable1} | > 0.2 × Qmax 125 +{{/formula}} 121 121 122 -where U,,2,,isthe 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.127 +where Q,,max,, — the maximum 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. 123 123 124 124 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. 125 125