DC Microgrid: Difference between revisions
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* Can be direct (w/o DC-DC-Converters) or with voltage adjustment | * Can be direct (w/o DC-DC-Converters) or with voltage adjustment | ||
* One-to-one connection via 230V? | * One-to-one connection via 230V? | ||
Severin started working on this for the "Design for a Cause" 2021 contest over at Element14: | |||
* [https://www.element14.com/community/community/design-challenges/design-for-a-cause-2021/blog/authors/makervanlabs Posts at Element14] | |||
* [https://hackaday.io/project/179713-microgrid-connection-unit Mirror at hackaday.io] | |||
* [https://github.com/tiefpunkt/microgrid_connection_unit GitHub Repository] | |||
== Related Projects == | == Related Projects == | ||
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* [https://www.instructables.com/DIY-All-in-One-Solar-Power-Pack/ DIY All in One Solar Power Pack] | * [https://www.instructables.com/DIY-All-in-One-Solar-Power-Pack/ DIY All in One Solar Power Pack] | ||
* [https://www.instructables.com/DIY-Off-Grid-Solar-System-V20/ DIY Off-Grid Solar System V2.0] ([https://www.instructables.com/DIY-OFF-GRID-SOLAR-SYSTEM/ previous version]) | * [https://www.instructables.com/DIY-Off-Grid-Solar-System-V20/ DIY Off-Grid Solar System V2.0] ([https://www.instructables.com/DIY-OFF-GRID-SOLAR-SYSTEM/ previous version]) | ||
* [https://community.hiveeyes.org/t/versuchsaufbau-autonome-zelle-solar-feinstaub-wetter-vergleichsding/1373 "Autonomous Cell"] | |||
=== Commercial === | === Commercial === | ||
Latest revision as of 21:37, 11 May 2021
| DC Microgrid Release status: experimental [box doku] | |
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| Description | self-sustainable power grid |
| Author(s) | Severin, Uli |
We wanted to build a DC microgrid at CCCamp19, but never fully got around to it. So we'll keep on trying in our lab, for the next camp and other events.
Gear we have built so far
Name
- Forty Eight Grid
- Team Forty Eight
List of recommended devices
- Soldering Irons
- TS100 [1]
- Lab PSU
- DIY PSU using DPS30xx or DPS50xx modules
- Battery Chargers
- IMAX B6 Charger works for LiPo and Pb batteries
- Laptop chargers
- Networking Hardware
- Switches
- WiFi APs
Power Out Boxes
48V-> 24/12/5V
- DC sockets
- Car sockets
- USB
- Switches + Fuses
- What kind of fuse?
- Volt/Amp Measurment - "Battery computer" -> Stats via LoRaWAN?
USB Charging Station
I have two 48V->5V DCDC converters (Product page, datasheet), which we could used tu build USB charging stations for powerbanks etc.
Power In Boxes
12/24V -> 48V
- Schottky Diode
- Fuse / Currentlimiting
- Batterymonitor / Datalogging -> LoRaWAN?
- Auto-Disable with Under/Overvoltage
Battery Computers
https://www.aliexpress.com/item/32990834620.html https://www.aliexpress.com/item/32864994942.html https://www.aliexpress.com/item/32993234025.html https://www.aliexpress.com/item/32616324201.html https://www.aliexpress.com/item/32957814319.html https://www.aliexpress.com/item/32904528079.html https://www.aliexpress.com/item/32784107301.html
Connectors
Ideas
Biolite "MicroGrid"
Biolite has a "base station" with a battery and connected lights to it (Core77 blog post). We could build a similar station and connect other stuff to it.
- Connection between lights via some common cable we all have - RJ45? passive PoE? To remain compatible with a bunch of other gear out there...
- GoalZero also has similar lights for their PowerPacks, like this one
Grid Connection Units
Units with µCs controlling direction, depending on the voltage in the local nanogrid and the microgrid.
- Can be direct (w/o DC-DC-Converters) or with voltage adjustment
- One-to-one connection via 230V?
Severin started working on this for the "Design for a Cause" 2021 contest over at Element14:
Related Projects
AltPwr
DC microgrid project at SHA2017, 42V grid voltage
- Old website (via Internet Archive)
- https://web.archive.org/web/20170811173021/https://dcgrid.hackpad.com/
- https://wiki.sha2017.org/w/Village:Energy
- https://orga.sha2017.org/index.php?title=Projects:AlternativePowerNetwork
- https://twitter.com/Commander1024/status/893835395661803520
- https://hackaday.com/2017/09/08/that-decentralised-low-voltage-local-dc-power-grid-how-did-it-do/ -> (If interested in helping contact Hackerspace Revspace in Den Haag, the Netherlands: Ralph Willekes <benadski(at)gmail.com>)
SunZilla
ISEMS
"Independent Solar Energy Mesh System" - Solar power solution for community mesh networks, e.g. Freifunk
Others
- SolarMAX
- Universal Battery Project
- ESP32 MPPT Tracker
- DIY All in One Solar Power Pack
- DIY Off-Grid Solar System V2.0 (previous version)
- "Autonomous Cell"
Commercial
- d.light
- Ecoflow R600 (similar to GoalZero Yeti etc)
Further Reading
- Micro Grids
- https://dsrp.eu/post/123379831763/nailing-the-microgrid
- https://dokterbob.gitbooks.io/stealmyideas/content/decentralized_high-voltage_dc_grids.html
- https://github.com/OpenNanogrid/ON-draft
- https://wiki.opensourceecology.de/OpenEnergy_NanoGrid
- https://wiki.opensourceecology.de/DiVER/en
- Building DC Energy systems (by LibreSolar)
- Notes from meetings at CCCamp19
- Notes on Solar and DC grid setups at totalism.org
