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Changes for page 3.3 Control

Last modified by Admin on 2025/04/09 12:14
From version 10.6
edited by Admin
on 2024/12/24 16:25
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To version 10.2
edited by Admin
on 2024/12/24 16:15
Change comment: There is no comment for this version

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... ... @@ -106,26 +106,19 @@
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"}}
110 -R = \frac{U-U_{ocv}}{I_{stable}}
111 -{{/formula}}
109 +R = (U-U,,ocv,,) / I,,stable,,,
112 112  
113 -where U — the cell voltage measured in the charge or discharge state, V; U,,ocv,, — cell voltage measured in the state of relaxation (before switching to the state of charge or discharge); I,,stable,, — stabilized current through the cell in the state of charge or discharge.
114 114  
112 +where U is the cell voltage measured in the charge or discharge state, V; U,,ocv,, is the cell voltage measured in the state of relaxation (before switching to the state of charge or discharge); I,,stable,, – stabilized current through the cell in the state of charge or discharge.
113 +
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}}
116 +R = (U,,2,,-U,,1,,) / (I,,stable2,,-I,,stable1,,) provided that | I,,stable2,,-I,,stable1,, | > 0.2 × Q,,max,,
120 120  
121 -provided that
118 +(Q,,max,, is the maximum cell capacity),
122 122  
123 -{{formula fontSize="SMALL"}}
124 -| I_{stable2}-I_{stable1} | > 0.2 × Qmax
125 -{{/formula}}
120 +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.
126 126  
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.
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  
131 131  To change parameters of the algorithm for calculating the cell resistance, select the "Control → Resistance estimation" section: