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SmartEVSE drawing more current then specified mains #224

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Imaginous opened this issue Dec 16, 2023 · 12 comments
Open

SmartEVSE drawing more current then specified mains #224

Imaginous opened this issue Dec 16, 2023 · 12 comments

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@Imaginous
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I specified 28A as mains max power.
I specified 28A as circuit
And 28A as MAX

I see the total system is using 29.5 on L1.

Why doesn't it throttle down to stay below 28A when using SMART charging?

@dingo35
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dingo35 commented Dec 16, 2023

Could you please post:
-your settings (Raw button)
-a verbose telnet log (press v then press enter)

...so I can look into this?

@paulw5
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paulw5 commented Dec 24, 2023

I have exactly the same issue. Already have let the network provider repair a fuse two times this year, last friday again. Never had it before with my SmartevseV1 EV charger solution.
RAW dump, i reflashed it with org smartevse3 Firmware because of the issue. I have a simple P1 addon box to see the current kWh per phase.
5
4
3
2
1

{
"version": "SERKRI-1.8.0",
"mode": "SMART",
"mode_id": 3,
"car_connected": true,
"wifi": {
"status": "WL_CONNECTED",
"ssid": "WFIOT",
"rssi": -85,
"bssid": "86:2A:A8:4A:CF:8A"
},
"evse": {
"temp": 32,
"temp_max": 65,
"connected": true,
"access": true,
"mode": 1,
"loadbl": 0,
"pwm": 340,
"solar_stop_timer": 0,
"state": "Connected to EV",
"state_id": 1,
"error": "None",
"error_id": 0,
"rfid": "Not Installed"
},
"settings": {
"charge_current": 200,
"override_current": 0,
"current_min": 6,
"current_max": 20,
"current_main": 20,
"current_max_sum_mains": 60,
"solar_max_import": 16,
"solar_start_current": 6,
"solar_stop_time": 0,
"enable_C2": "Not present",
"modem": "Experiment",
"mains_meter": "Sensorbox",
"starttime": 0,
"stoptime": 0,
"repeat": 0,
"required_evccid": ""
},
"ev_state": {
"initial_soc": -1,
"remaining_soc": -1,
"full_soc": -1,
"energy_capacity": -1,
"energy_request": -1,
"computed_soc": -1,
"evccid": "",
"time_until_full": -1
},
"mqtt": {
"host": "",
"port": 1883,
"topic_prefix": "SmartEVSE-3469",
"username": "",
"password_set": 0,
"status": "Disconnected"
},
"home_battery": {
"current": 0,
"last_update": 0
},
"ev_meter": {
"description": "Disabled",
"address": 12,
"import_active_power": 0,
"total_kwh": 0,
"charged_kwh": 0,
"currents": {
"TOTAL": 0,
"L1": 0,
"L2": 0,
"L3": 0
},
"import_active_energy": 0,
"export_active_energy": 0
},
"mains_meter": {
"import_active_energy": 0,
"export_active_energy": 0
},
"phase_currents": {
"TOTAL": 27,
"L1": 5,
"L2": 6,
"L3": 16,
"last_data_update": 1703418219,
"charging_L1": false,
"charging_L2": false,
"charging_L3": false,
"original_data": {
"TOTAL": 27,
"L1": 5,
"L2": 6,
"L3": 16
}
},
"backlight": {
"timer": 0,
"status": "OFF"
}
}

@dingo35
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dingo35 commented Dec 24, 2023

Sorry guys, but you can keep uploading screenshots all you want, as long as nobody uploads a verbose telnet log there is nothing I can do for you....

@paulw5
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paulw5 commented Dec 24, 2023

Sorry didn’t know. Will do this afternoon. No problem

@dingo35
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dingo35 commented Dec 24, 2023

In the mean time, you could test this version:
limit_charging_on_non_charging_phases.zip

...which has telnet enabled and limits the charging current ALSO on phases you are not charging on.... Again, totally in the blind here.....

@paulw5
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paulw5 commented Dec 24, 2023

And just for some extra information. This morning I put the cooker on and saw the car get less power at phase3. And even stopped charging after i turned the oven on. But at the example I uploaded the screenshots of the max current of 20a was not limited.
It seems like that after an certain event the limiter of the current won't work anymore.

Do I need the latest version you posted to make a Telnet verbose log or can I use v1.8. Regards Paul

@Imaginous
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Author

I have it planned, but it's a bit chaotic at work at the moment. Maybe during Christmas.

As developer I completely understand you're in the dark.
At the moment it seems to work... I have disabled the EV Metering via the API.
My EV Metering only reports once a minute. I think this might trigger secondary protection.

But @paulw5 doesn't have this enabled if I look at his screen shots.

Happy holidays to you all.
@dingo35, we love your work and I don't want to rush you into anything. It's a hobby.
It's me failing to comply ;)

@dingo35
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dingo35 commented Dec 24, 2023

@paulw5 Please use the one posted here.

@paulw5
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paulw5 commented Dec 24, 2023

20231224putty.log
Is this enough info?
I started to garden heaters at L3 several times. EVSE lowered the power to My tesla S (info above is my wife M3) all the time.

And no rush it's just a hobby

@dingo35
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dingo35 commented Dec 26, 2023

First of all you have "Modem" set to Experiment, it would surprise me if you have a modem attached.

Second, if I understand you correctly, this version gives you no problem. Why would you send me a log of a non-erroneous situation?

@paulw5
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paulw5 commented Dec 26, 2023

GoodMorning and no haven't got a modem attached so will change the setting.
Haven't had any issues yet but also previous versions sometimes exceed the limit but not always. Hope that I can capture some verbose logging if it's happens.
In march my network operator have to put a new fuse in and also last Friday. And Sunday I saw that the limiter wasn't working.

@paulw5
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paulw5 commented Jan 4, 2024

Last week I tested a lot and seems like the limit is working.

What I remember and never linked it with the issue. I sometimes saw in web interface the statement charging
2x XX.Y(phase) in stead of the current view of 3x XX.y

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