DC Microgrid: Difference between revisions

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We're looking to build a DC migrogrid at CCCamp19.
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 ==
== Gear we have built so far ==
* [[/consume01|consume01]]
* [[/consume01|consume01]]
== Hacks and other related information ==
* [[/Yeti|Hacking the Goal Zero Yeti]]
* [[/Solar|More solar related information]]
* [[/Batteries|Batteries]]


== Name ==
== Name ==
Line 72: Line 77:
* Car lighter plugs
* Car lighter plugs
* DC barrel plugs
* DC barrel plugs
== Ideas ==
=== Biolite "MicroGrid" ===
Biolite has a "base station" with a battery and connected lights to it ([https://www.core77.com/posts/90210/BioLite-Launches-a-Range-of-Emergency-Kits 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 [https://www.goalzero.com/shop/yeti-accessories/light-a-life-350-led-light/ this one]
=== Grid Connection Units ===
[[File:Microgrid-connectors.png|thumb|400px|right|Nanogrid with different 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:
* [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 ==
=== AltPwr ===
DC microgrid project at SHA2017, 42V grid voltage
* [https://web.archive.org/web/20171204032204/https://www.altpwr.net/ 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 ===
* [https://sunzilla.de/ Website]
* [https://github.com/SunZillaBerlin/Score GitHub Repo]
===ISEMS ===
"Independent Solar Energy Mesh System" - Solar power solution for community mesh networks, e.g. Freifunk
* [https://www.isems.de/ Website]
* [https://media.ccc.de/v/35c3oio-63-independent-solar-energy-mesh-system Talk @ 35c3]
* [https://wiki.freifunk.net/Freifunk-MPP-Tracker Freifunk-MPP-Tracker]
=== Others ===
* [https://www.kickstarter.com/projects/sunair/solarmax-a-solar-power-system-for-your-maker-project SolarMAX]
* [https://hackaday.io/project/165854-universal-battery Universal Battery Project]
* [https://hackaday.com/2019/11/04/esp32-makes-great-mppt-controller-in-low-cost-solar-installation/ ESP32 MPPT Tracker]
* [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://community.hiveeyes.org/t/versuchsaufbau-autonome-zelle-solar-feinstaub-wetter-vergleichsding/1373 "Autonomous Cell"]
=== Commercial ===
* [https://www.dlight.com/ d.light]
* [https://www.kickstarter.com/projects/ecoflow/ecoflow-r600 Ecoflow R600] (similar to GoalZero Yeti etc)


== Further Reading ==
== Further Reading ==
* AltPwr https://web.archive.org/web/20171204032204/https://www.altpwr.net/ 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>)
* Micro Grids
* Micro Grids
** https://dsrp.eu/post/123379831763/nailing-the-microgrid
** https://dsrp.eu/post/123379831763/nailing-the-microgrid
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** https://github.com/OpenNanogrid/ON-draft
** https://github.com/OpenNanogrid/ON-draft
** https://wiki.opensourceecology.de/OpenEnergy_NanoGrid
** https://wiki.opensourceecology.de/OpenEnergy_NanoGrid
** https://wiki.opensourceecology.de/DiVER/en
** [https://learn.libre.solar/system/ Building DC Energy systems (by LibreSolar)]
* [[/Camp2019 Notes|Notes from meetings at CCCamp19]]
* [https://e2h.totalism.org/e2h.php?_=solar Notes on Solar and DC grid setups at totalism.org]


== Related ==
== Related ==
* EventGrid: [https://altpwr.net/ New AltPwr Wiki], [https://t.me/eventgrid Telegram Group]
* [[/Solar|More solar related information]]
* EventGrid: [https://altpwr.net/ New AltPwr Wiki], [https://t.me/joinchat/D2v4lRe3eQX4MuYHo2JdpQ Telegram Group], [https://t.me/eventgrid Telegram Channel]
* CCCamp Wiki: [https://events.ccc.de/camp/2019/wiki/Projects:Microgrid Project Page], [https://events.ccc.de/camp/2019/wiki/Session:Chaos_Microgrid_Working_Group Self-organized Session]
* CCCamp Wiki: [https://events.ccc.de/camp/2019/wiki/Projects:Microgrid Project Page], [https://events.ccc.de/camp/2019/wiki/Session:Chaos_Microgrid_Working_Group Self-organized Session]
* [https://pads.c3w.at/pad/#/2/pad/edit/iTdAUItM2Ts43FA1gIzsgnUc/ Gear list started by /dev/lol people]
* [https://pads.c3w.at/pad/#/2/pad/edit/iTdAUItM2Ts43FA1gIzsgnUc/ Gear list started by /dev/lol people]

Latest revision as of 21:37, 11 May 2021

   
DC Microgrid

Release status: experimental [box doku]

Microgrid-logo.png
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

Hacks and other related information

Name

Our gear at CCCamp19
  • Forty Eight Grid
  • Team Forty Eight

List of recommended devices


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.

  • USB "power sensing" via data pins: [2], [3], [4]

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

  • SELV [5] [6] [7]
  • Speakon
  • XT60
  • XLR-4
  • Car lighter plugs
  • DC barrel plugs

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

Nanogrid with different 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

SunZilla

ISEMS

"Independent Solar Energy Mesh System" - Solar power solution for community mesh networks, e.g. Freifunk

Others

Commercial

Further Reading

Related

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