"On-grid AC Couple" Deye and huawei
- Thread starter GabrielC
- Start date
Hi, interesting topic, I wouldbe also interested. Also not 100% clear to me, how this can work, maybe more experience will enable that.
Victron and Fronius are doung that very nicely. WOuld be nice to see if Deye can do same (as Victron replacement with integrated MPPT etc)
Victron and Fronius are doung that very nicely. WOuld be nice to see if Deye can do same (as Victron replacement with integrated MPPT etc)
shadowmaker
Solar Addict
At least for me this was super easy. I just fed my Deye 12K's GEN input with my grid tied Bluesun 15K's AC output. Then went to GEN PORT USE menu and tick "Micro inv input"-box and set battery voltage/percentage (mine is OFF 98%, ON 95%).
AC coupled inverter (Bluesun 15K in my case) needs to be AC coupling compatible so that Deye can control it via frequency shift. Don't remember certificate number for that, but there are lots of topics dealing with AC coupling on this forum. They explain also why there always needs to be some battery capacity available (thus my AC coupling shuts down at 98%).
AC coupled inverter (Bluesun 15K in my case) needs to be AC coupling compatible so that Deye can control it via frequency shift. Don't remember certificate number for that, but there are lots of topics dealing with AC coupling on this forum. They explain also why there always needs to be some battery capacity available (thus my AC coupling shuts down at 98%).
ok, thanks, with Gen input its clear. In my case the Generators are physically far away (100-200m) and would be full power grid tied, no need to control. The only function which would be required is the AC charging in case of energy insertion into the grid.
Elektro Mlasko
New Member
Hallo,
I have a Deye 12K Hybrid and Huawei Sun2000 30K inverter switched parallel to AC grid.
The Huawei has 19kW solar power insalled, and the Deye 8kW.
The network operator allows me to sell a maximum of 20kw in to the grid.
The Huawei has no smart meter installed.
How can I limit the output power only on Deye with CT's istalled just after the grid meter?
(On Deye can set maxsell power only 15000W and no more)
maybe change the rate for CT (2000:1) to (1000:1) and set maxselpower to 10000W ?
Ok, the displayed power will be wrong.
I have a Deye 12K Hybrid and Huawei Sun2000 30K inverter switched parallel to AC grid.
The Huawei has 19kW solar power insalled, and the Deye 8kW.
The network operator allows me to sell a maximum of 20kw in to the grid.
The Huawei has no smart meter installed.
How can I limit the output power only on Deye with CT's istalled just after the grid meter?
(On Deye can set maxsell power only 15000W and no more)
maybe change the rate for CT (2000:1) to (1000:1) and set maxselpower to 10000W ?
Ok, the displayed power will be wrong.
In a similar setup with Deye+Solaredge I was able to increase Deye max sell power to my 19200 W limit by sending Customized write command over deye loud.com interface by changing mod is register 143. The command sent is 0110008F0001024B008F9F where 4B00 is hexadecimal of 19200W and last two bytes are CRC calculated with the toolbox therein. Deye inverter does not complain about it and uses it in LCD and deyecloud even if changing other parameters in a batch. So 15000 limit is GUI only. I am happy this is possible and relatively easy to use solution.
What I am not happy is that LCD and deyecloud reported info for total load are not the same then. Deyecloud is somewhatcorrect while LCD shows LOAD as 0W and not negative at least.
