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Changes for page 3.4 Protections

Last modified by Admin on 2025/06/11 15:57
From version 4.2
edited by Admin
on 2025/02/28 14:54
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To version 1.1
edited by Admin
on 2024/12/16 13:52
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1 -Battery management systems.BMS Main X.3\. Configuration.WebHome
1 +drafts.BMS Main X.3\. Configuration.WebHome
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4 4  (% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 5  == Protections ==
6 6  
7 -The BMS Main X monitors the battery modules, compares the voltages and currents of the modules, and protects the battery system from damage.
7 +The BMS Main X 2.x monitors the battery modules, compares the voltages and currents of the modules, and protects the battery system from damage.
8 8  
9 -(% class="box errormessage" %)
10 -(((
11 -**Attention!**
12 -Behavior of contactors at different errors is configured in **corresponding contactor settings**!
13 -)))
14 -
15 -=== Charging current limit ===
16 -
17 -The BMS Main X device protects the battery from charging current higher than estimated current limit.
18 -
19 -To configure parameters of the charge current limit, select the "Protections → Charge current limit" section:
20 -
21 -[[image:1740754371437-635.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="142" width="800"]]
22 -
23 -In this section:
24 -
25 -* Enable – a flag to enable the protection;
26 -* Threshold to switch from Region 1 to Region 2 – a threshold current value, dividing regions 1 and 2 with their error generation conditions, A;
27 -* Region 1: Current difference – an absolute difference of measured battery current and calculated value “Charge current limit”, at which error is generated (condition for Region 1), A;
28 -* Region 2: Current difference – a relative difference of measured battery current and calculated value “Charge current limit”, at which error is generated (conditions for Region 2), %;
29 -* Delay before setting the error, millisecond;
30 -* Delay before clearing the error, second;
31 -* Lock – a flag to block the error until the device is restarted.
32 -
33 -As a result of the operation of the charging current limit protection, the “Current limit error (CH)” is generated.
34 -
35 -Error generation conditions:
36 -
37 -* if the current is positive, less than “Threshold to switch from Region 1 to Region 2” value and exceeds “Charge current limit” by the “Region 1: Current difference” value during the “Delay before setting the error” time;
38 -* if the current is positive, more than “Threshold to switch from Region 1 to Region 2” value and exceeds “Charge current limit” by the (“Region 2: Current difference” × “Charge current limit”) / 100 value during the “Delay before setting the error” time.
39 -
40 -Error is cleared if conditions for generating an error do not apply during the “Delay before clearing the error” time.
41 -
42 -=== Discharging current limit ===
43 -
44 -The BMS Main X device protects the battery from discharging current higher than estimated current limit.
45 -
46 -To configure parameters of the charge current limit, select the "Protections → Discharge current limit " section:
47 -
48 -[[image:1740754420820-767.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
49 -
50 -In this section:
51 -
52 -* Enable – a flag to enable the protection;
53 -* Threshold to switch from Region 1 to Region 2 – a threshold current value, dividing regions 1 and 2 with their error generation conditions, A;
54 -* Region 1: Current difference – an absolute difference of measured battery current and calculated value “Discharge current limit”, at which error is generated (condition for Region 1), A;
55 -* Region 2: Current difference – a relative difference of measured battery current and calculated value “Discharge current limit”, at which error is generated (conditions for Region 2), %;
56 -* Delay before setting the error, millisecond;
57 -* Delay before clearing the error, second;
58 -* Lock – a flag to block the error until the device is restarted.
59 -
60 -As a result of the operation of the charging current limit protection, the “Current limit error (DCH)” is generated.
61 -
62 -Error generation conditions:
63 -
64 -* if the current is negative, and the current modulus is less than “Threshold to switch from Region 1 to Region 2” value and exceeds “Discharge current limit” by the “Region 1: Current difference” value during the “Delay before setting the error” time;
65 -* if the current is negative, and the current modulus is more than “Threshold to switch from Region 1 to Region 2” value and exceeds “Discharge current limit” by the (“Region 2: Current difference” × “Discharge current limit”) / 100 value during the “Delay before setting the error” time.
66 -
67 -Error is cleared if conditions for generating an error do not apply during the “Delay before clearing the error” time.
68 -
69 69  === Battery cover ===
70 70  
71 71  The BMS Main X device detects the opening of the battery cover and performs a protective opening of the contactors.
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72 72  
73 73  Battery cover protection is configured in the "Protections - Battery cover" section:
74 74  
75 -[[image:1734356776691-451.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="88" width="800"]]
15 +[[image:1734356776691-451.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="66" width="600"]]
76 76  
77 77  In this section:
78 78  
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91 91  
92 92  (% class="box warningmessage" %)
93 93  (((
94 -If there is the "Battery cover" error, the **"Critical error flag" is generated.**
34 +If there is the "Battery cover" error, the **"Critical error flag" is generated and all battery contactors open.**
95 95  )))
96 96  
97 97  === Insulation ===
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124 124  
125 125  === Contactor feedback ===
126 126  
127 -The BMS Main X device detects the feedback signals from the main contactors and, in the event of a discrepancy between the feedback signals from the control signals, performs a protective opening of the contactors.
67 +The BMS Main X 2.x device detects the feedback signals from the main contactors and, in the event of a discrepancy between the feedback signals from the control signals, performs a protective opening of the contactors.
128 128  
129 129  Contactor feedback protection is configured in the “Protections – Contactor feedback” section:
130 130  
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206 206  
207 207  === Current unbalance ===
208 208  
209 -When battery modules are connected in parallel, the most charged modules transfer charge to the least charged modules. The process of charge transfer is accompanied by the flow of balancing currents. The BMS Main X device detects modules with high balancing currents and generates “Current unbalance (CH)” (charge circuit) and “Current unbalance (DCH)” (discharge circuit) errors for them.
149 +When battery modules are connected in parallel, the most charged modules transfer charge to the least charged modules. The process of charge transfer is accompanied by the flow of balancing currents. The BMS Main X 2.x device detects modules with high balancing currents and generates “Current unbalance (CH)” (charge circuit) and “Current unbalance (DCH)” (discharge circuit) errors for them.
210 210  
211 211  Protection against current unbalance of battery modules is configured in the section "Protections - Current unbalance":
212 212  
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232 232  
233 233  === Charging current unbalance ===
234 234  
235 -During battery charging, the currents of the battery modules may vary. The BMS Main X device detects modules whose charging currents are significantly different from the currents of other modules and generates the “Charging current unbalance” errors for them.
175 +During battery charging, the currents of the battery modules may vary. The BMS Main X 2.x device detects modules whose charging currents are significantly different from the currents of other modules and generates the “Charging current unbalance” errors for them.
236 236  
237 237  Protection against different charge currents is configured in the "Protections – Charging current unbalance" section:
238 238  
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258 258  
259 259  === Discharging current unbalance ===
260 260  
261 -During battery discharging, the currents of the battery modules may vary. The BMS Main X device detects modules whose discharging currents are significantly different from the currents of other modules and generates the “Discharging current unbalance” errors for them.
201 +During battery discharging, the currents of the battery modules may vary. The BMS Main X 2.x device detects modules whose discharging currents are significantly different from the currents of other modules and generates the “Discharging current unbalance” errors for them.
262 262  
263 263  Protection against different discharge currents is configured in the "Protections – Discharging current unbalance" section:
264 264  
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