DC Microgrid

   

DC Microgrid Release status: experimental [box doku]
Description	self-sustainable power grid
Author(s)	Severin, Uli

We're looking to build a DC migrogrid at CCCamp19.

Gear we have built so far

• consume01

Name

Our gear at CCCamp19

• 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
  • Lenovo USB-C charger
• 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.

• 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

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
  • 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

Related

• EventGrid: New AltPwr Wiki, Telegram Group
• CCCamp Wiki: Project Page, Self-organized Session
• Gear list started by /dev/lol people
• Mastodon thread