105 lines
3.8 KiB
Markdown
105 lines
3.8 KiB
Markdown
---
|
|
title: "Solar power on camper"
|
|
date: 2020-08-10T20:39:45+02:00
|
|
draft: true
|
|
---
|
|
|
|
A project to add solar power to the VW T3 Joker
|
|
|
|
|
|
**WikiToDo**
|
|
|
|
- Photograph panel specs [x]
|
|
- Measure cables [ ]
|
|
- Measure cables [ ]
|
|
|
|
|
|
# Conditions
|
|
**Energy sources**
|
|
- Starter battery
|
|
- Leasure battery
|
|
- Engine
|
|
- 220 input
|
|
|
|
**Energy consumtion**
|
|
- Pentry fuse 16A
|
|
- Fridge 85W
|
|
- Indicator display (oklart men extremt lite. Letar efter källa)
|
|
- Waterpump (pentry)(12V 2A => 12*2=24W)
|
|
- Fridge fan (0,6W)
|
|
|
|
**Other stuff**
|
|
- Unsure about the fuse directly at the battery but should use one 8A
|
|
- Battery charger type LG 20
|
|
|
|
# The panel
|
|
**Specs**
|
|
- 110 W
|
|
- 18V rated voltage
|
|
|
|
# The MPPT
|
|
**Specs**
|
|
- ESP32
|
|
- Diod preventing the protective diods in the box at the back of the panel breaks if the panel is connected with the wrong polarityand preventing old/bad panels to discharge the battery when it is dark. Stuges test shows that this diod will be what limits the effect/power the chager can handle. With a load at 6A he measured 113 °C on the outside of the diod. The it is close to the max temperature (150 °C) on the inside. At a load at 6A he measured 100W in, the used panel in this project is 110W. This is working since the panel never produces 100%. But it is close to the limit if the chager is loaded at 6A.
|
|
|
|
**Testprotocols & measurements**
|
|
|
|
Stuge 10 July (Stuge)
|
|
```
|
|
OpenMPPT
|
|
|
|
In 16V 0.96A Out 1A 14.11V 14.11W D6 Tterm=48.7°C N1
|
|
In 16V 1.88A Out 2A 13.79V 27.57W D6 Tterm=55.1°C N1
|
|
In 16V 2.80A Out 3A 13.51V 40.53W D6 Tterm=64.7°C N1
|
|
In 16V 3.71A Out 4A 13.25V 53.01W D6 Tterm=79.7°C N1
|
|
In 16V 4.62A Out 5A 13.02V 65.12W D6 Tterm=93.8°C N1
|
|
In 16V 5.53A Out 6A 12.78V 76.70W D6 Tterm=110.9°C N0
|
|
|
|
In 17V 0.96A Out 1A 14.55V 14.55W D6 Tterm=49.2°C N1
|
|
In 17V 1.89A Out 2A 14.47V 28.93W D6 Tterm=61.7°C N2
|
|
In 17V 2.82A Out 3A 14.39V 43.16W D6 Tterm=73.2°C N2
|
|
In 17V 3.77A Out 4A 14.32V 57.27W D6 Tterm=84.9°C N2
|
|
In 17V 4.74A Out 5A 14.23V 71.16W D6 Tterm=98.2°C N1
|
|
In 17V 5.62A Out 6A 13.95V 83.76W D6 Tterm=109.6°C N1
|
|
|
|
In 18V 0.91A Out 1A 14.54V 14.54W D6 Tterm=48.2°C N1
|
|
In 18V 1.79A Out 2A 14.48V 28.95W D6 Tterm=58.4°C N2
|
|
In 18V 2.67A Out 3A 14.15V 43.15W D6 Tterm=73.6°C N3
|
|
In 18V 3.56A Out 4A 14.32V 57.27W D6 Tterm=85.7°C N3
|
|
In 18V 4.47A Out 5A 14.22V 71.44W D6 Tterm=99.2°C N3
|
|
In 18V 5.39A Out 6A 14.15V 84.84W D6 Tterm=113.0°C N3
|
|
|
|
In 19V 0.88A Out 1A 14.63V 14.63W D6 Tterm=54.6°C N1
|
|
In 19V 1.70A Out 2A 14.64V 29.27W D6 Tterm=53.0°C N2
|
|
In 19V 2.54A Out 3A 14.39V 43.15W D6 Tterm=63.8°C N3
|
|
In 19V 3.39A Out 4A 14.31V 57.28W D6 Tterm=76.7°C N3
|
|
In 19V 4.23A Out 5A 14.23V 71.18W D6 Tterm=88.5°C N4
|
|
In 19V 5.11A Out 6A 14.15V 84.87W D6 Tterm=103.6°C N2
|
|
|
|
In 20V 0.83A Out 1A 14.55V 14.54W D6 Tterm=48.2°C N1
|
|
In 20V 1.63A Out 2A 14.47V 28.94W D6 Tterm=54.2°C N2
|
|
In 20V 2.43A Out 3A 14.39V 43.17W D6 Tterm=61.1°C N3
|
|
In 20V 3.24A Out 4A 14.32V 57.28W D6 Tterm=75.1°C N3
|
|
In 20V 4.02A Out 5A 14.23V 71.18W D6 Tterm=85.3°C N4
|
|
In 20V 4.84A Out 6A 14.15V 84.88W D6 Tterm=104.4°C N4
|
|
10. Jul., 09:26
|
|
```
|
|
|
|
**Elektra resources and similar**
|
|
- https://github.com/ISEMS/ISEMS-ESP32
|
|
- https://media.ccc.de/v/36c3-oio-166-ff-esp32-openmppt-new-freifunk-isems-mppt-solar-controller-with-integrated-wifi
|
|
- https://www.isems.de/
|
|
- https://isems.netlify.app/en/
|
|
- https://media.ccc.de/v/35c3oio-63-independent-solar-energy-mesh-system
|
|
|
|
# The current setup
|
|
**Cables & connetors**
|
|
- Red/Black connectors (Powerpole 75) not water proof
|
|
- Panel connectors (MC4/H4) cannot hang unconnected in moist!
|
|
# Dictionary
|
|
|
|
|
|
| English | Swedish | German |
|
|
| -------- | -------- | -------- |
|
|
| Rated voltage | Nominell spänning/märksmänning | ? |
|
|
| Alternator | Generator | Lichmachine | |