Timeline for Voltage-controlled current limiter as a solar battery sink [closed]
Current License: CC BY-SA 4.0
30 events
| when toggle format | what | by | license | comment | |
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| Sep 30, 2022 at 19:50 | history | closed |
winny user319836 Jens |
Needs details or clarity | |
| Sep 20, 2022 at 20:51 | review | Close votes | |||
| Sep 30, 2022 at 19:50 | |||||
| Sep 20, 2022 at 20:33 | answer | added | Voltage Spike♦ | timeline score: 1 | |
| Sep 20, 2022 at 20:26 | history | edited | winny | CC BY-SA 4.0 |
deleted 2 characters in body
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| Sep 20, 2022 at 20:22 | history | reopened | Voltage Spike♦ | ||
| Sep 18, 2022 at 10:31 | comment | added | Matt | The system outputs the measurement of production and consumption, that side is pre-determined. Everyone's production and consumption figures will be different. | |
| Sep 18, 2022 at 10:30 | comment | added | Matt | The power management system hardware and software is available here : github.com/flatmax/BatteryController.electronics github.com/flatmax/BatteryController | |
| Sep 18, 2022 at 9:35 | comment | added | jonk | @Matt It's not clear to me. I'd like to know as much as possible about the solar panel system and your location and it's ability (or lack thereof) to track the sun and the behavior of its maximum power point over differing irradiance values and your location and measured values of irradiance over the cycle of a year. And that's just the solar panel. Then there is this fancy battery that has protection for over and under voltage and upper current limit. What are those details and, of course, why in the heck you think it is of no concern of ours? Look at how few words you've written. No charts. | |
| Sep 17, 2022 at 3:58 | history | edited | Matt | CC BY-SA 4.0 |
Added the current limiting equation based on the voltage source. Trying to be as specific as possible
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| Sep 17, 2022 at 3:53 | history | edited | Matt | CC BY-SA 4.0 |
Added the current limiting equation based on the voltage source. Trying to be as specific as possible
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| Sep 17, 2022 at 3:46 | comment | added | Matt | OK - it isn't clear to me what is not understandable. Can you please be more clear on what requires clarification ? | |
| Sep 17, 2022 at 3:14 | comment | added | nanofarad | Drive-by comment (I didn't vote on the closure or the question) - I'm inclined to agree with the closure, because the question is still not actually clear. To get an answer more effectively, help us help you by making your actual spec clear and unambigous, without needing to guess at unspecified assumptions and design decisions you've already made. | |
| Sep 17, 2022 at 2:48 | history | edited | Matt | CC BY-SA 4.0 |
Completely re-wrote the question to try to address concerns.
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| S Sep 17, 2022 at 2:34 | review | Reopen votes | |||
| Sep 20, 2022 at 20:22 | |||||
| S Sep 17, 2022 at 2:34 | history | edited | Matt | CC BY-SA 4.0 |
Completely re-wrote the question to try to address concerns.
Added to review
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| Sep 16, 2022 at 7:41 | comment | added | PStechPaul | As I understand it, an energy sink battery must be maintained at perhaps 50% SOC until it's needed to absorb excess production. One article: governing.com/now/…. More technical: electrical-engineering-portal.com/download-center/… | |
| Sep 16, 2022 at 7:28 | comment | added | PStechPaul | The lithium battery packs I'm familiar with are charged by setting a voltage corresponding to full charge, and then charged with constant current until the voltage approaches the set voltage, and current drops to near zero. | |
| Sep 16, 2022 at 6:28 | history | closed |
Andy aka ocrdu Neil_UK |
Needs more focus | |
| Sep 16, 2022 at 5:46 | history | edited | Matt | CC BY-SA 4.0 |
updated the voltage requirement and the sound card suggestion
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| Sep 16, 2022 at 5:45 | comment | added | Matt | I'll work that into the question - when the 54v drops the battery will stop charging. | |
| Sep 16, 2022 at 5:00 | comment | added | user57037 | A supply cannot simultaneously maintain a 54 V output along with a 20 A current limit. If the load attempts to consume more than 20 A, what is the supply supposed to do? Transition into current limited 20 A mode? This violates the constraint of maintaining a 54 V output. 20 A is just an example picked at random since you said the actual limit might be anywhere between 0 and 35 Amps. | |
| Sep 16, 2022 at 4:55 | comment | added | user57037 | Question is not clear at all to me. I read it several times. This is just some feedback to the OP. It is possible that this lack of clarity is causing some people (not me) to vote to close. I think the question could be made MUCH more clear by adding a block diagram of all the system components. | |
| Sep 16, 2022 at 0:42 | comment | added | Hearth | @Matt When your question gets closed, edit the question to address the close reason. Deleting a question and asking it again is not allowed on this site. A closed question can be reopened if its problems are addressed. | |
| Sep 15, 2022 at 23:58 | comment | added | Criticize SE actions means ban | Are you basically asking about a solar dump load? | |
| Sep 15, 2022 at 22:56 | review | Close votes | |||
| Sep 16, 2022 at 6:30 | |||||
| Sep 15, 2022 at 22:19 | comment | added | Matt | Hey tomnexus, that programmable supply looks good. The current limiting should be from around 0A to 35 A. The input v would be from 0.3 to 3V. Probably but not necessarily with a linear mapping. Yes, I guess that would happen at current limit the voltage drops. | |
| Sep 15, 2022 at 22:13 | comment | added | tomnexus | It's not completely clear what the actual V I control and limit requirements are. Must it be constant voltage with a programmable current limit (at which point of course the voltage drops)? This sounds like a remote controlled 2 kW mains power supply, could you just buy one like this? | |
| Sep 15, 2022 at 22:08 | comment | added | jonk | Wasn't this not only here and closed but also perhaps earlier, as well? | |
| Sep 15, 2022 at 22:01 | history | edited | ocrdu | CC BY-SA 4.0 |
deleted 56 characters in body; edited title
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| Sep 15, 2022 at 21:54 | history | asked | Matt | CC BY-SA 4.0 |