alice 2020-07-31 21:06:12 +00:00
parent 97213af37b
commit 209782a581

@ -9,38 +9,36 @@ A project to add solar power to the VW T3 Joker
# Conditions
Energy sources
**Energy sources**
- Starter battery
- Leasure battery
- Engine
- 220 input
Energy consumtion
**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
**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
**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
- Stuge 10 July (Stuge)
**Testprotocols & measurements**
Stuge 10 July (Stuge)
```
OpenMPPT
@ -81,7 +79,7 @@ In 20V 4.84A Out 6A 14.15V 84.88W D6 Tterm=104.4°C N4
10. Jul., 09:26
```
Elektra resources and similar
**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/
@ -89,10 +87,9 @@ Elektra resources and similar
- https://media.ccc.de/v/35c3oio-63-independent-solar-energy-mesh-system
# The current setup
Cables & connetors
**Cables & connetors**
- Red/Black connectors (Powerpole 75) not water proof
- Panel connectors (MC4/H4) cannot hang unconnected in moist!
# Dictionary
Rated voltage - Nominell spänning / märkspänning
Alternator - Lichtmachine - Generator