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Changes for page 3.3 Control

Last modified by Admin on 2025/04/09 12:14
From version 10.5
edited by Admin
on 2024/12/24 16:23
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To version 10.8
edited by Admin
on 2024/12/24 16:27
Change comment: There is no comment for this version

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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  
... ... @@ -114,20 +114,18 @@
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}}
117 +{{formula fontSize="SMALL"}}
118 118  R = \frac{U_2-U_1}{I_{stable2}-I_{stable1}}
119 119  {{/formula}}
120 120  
121 121  provided that
122 122  
123 -{{formula}}
124 -|I_{stable2}-I_{stable1}| > 0.2 × Qmax
123 +{{formula fontSize="SMALL"}}
124 +| I_{stable2}-I_{stable1} | > 0.2 × Qmax
125 125  {{/formula}}
126 126  
127 -(Q,,max,, is the maximum cell capacity),
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.
128 128  
129 -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.
130 -
131 131  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.
132 132  
133 133  To change parameters of the algorithm for calculating the cell resistance, select the "Control → Resistance estimation" section:
... ... @@ -142,7 +142,7 @@
142 142  * Minimum SOC – minimum cell SOC value for resistance calculation;
143 143  * Maximum SOC – maximum cell SOC value for resistance calculation.
144 144  
145 -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).
143 +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).
146 146  
147 147  === Low SOC (signal) ===
148 148  
... ... @@ -277,7 +277,6 @@
277 277  
278 278  I,,continuous,, = Maximum CONTINUOUS charge current × K,,cc,,
279 279  
280 -
281 281  === Discharge map (PEAK & CONTINUOUS) ===
282 282  
283 283  The BMS Main 3 has an alternative algorithm for the maximum allowed discharging current based on peak and continuous battery operating modes.
... ... @@ -305,6 +305,21 @@
305 305  
306 306  I,,continuous,, = Maximum CONTINUOUS discharge current × K,,dc,,
307 307  
305 +=== Main contactor ===
306 +
307 +TBA
308 +
309 +=== Charging status ===
310 +
311 +TBA
312 +
313 +=== Discharging status ===
314 +
315 +TBA
316 +
317 +=== Precharge ===
318 +
319 +
308 308  === Charge ===
309 309  
310 310  There are two contactors that serve charging the battery: a charging contactor and an allow charging contactor. With the help of the allow charging contactor, the BMS commands the charger to start or stop charging.