robwolff3
How do you turn this thing on?
- Joined
- Oct 12, 2021
- Messages
- 42
Posting this on how I got AC Coupling with my SolarEdge SE5000H-US and my MPP LVX6040WP hybrid inverter to work together. Since I didn't see consolidated information on this anywhere online.
The other day I tried testing a grid down situation with my MPP to see if it could charge my LiFePo4 48v batteries from the AC Coupled SolarEdge. The SolarEdge is on the loads side of my MPP with my other critical loads and the MPP is configured for AC Coupling. Popping the grid breaker on my MPP the SolarEdge resets and after 5 minutes of seeing power on the loads side of the MPP the SolarEdge will start producing power. I noticed pretty quickly that above 3,000w the MPP starts frequency shifting but the SolarEdge was not reducing its power. At around 4,000 watts the MPP frequency shifted all the way up to 61Hz, then the SolarEdge throws a fault and stops producing power. It seems the SolarEdge is producing too much AC power for the MPP's loads side. After a couple of moments the MPP will come back down to 60Hz and the process will repeat if you let it.
I got into the settings of my SolarEdge inverter but didnt see the P(f) settings option referenced in the SolarEdge documentation I found. Through trial and error I figured out changing my County & Grid mode from "US 240V" to "US/Rule21 240V" in inverter started to listen to frequency shifting. And through tweaking some of those options I got the most output with the MPP.
Now when my SolarEdge get up around 4,000w it reports a "throttled" through monitoring and decreases its output in accordance with the frequency shifted.
Warning - Seek guidance from a solar installer or a licensed electrician before modifying the settings on your SolarEdge inverter. Follow all local electrical code and grid operating rules for your region.
If you need to update your firmware you must use the SetApp option below. Otherwise you can edit your settings with either option below.
References
The other day I tried testing a grid down situation with my MPP to see if it could charge my LiFePo4 48v batteries from the AC Coupled SolarEdge. The SolarEdge is on the loads side of my MPP with my other critical loads and the MPP is configured for AC Coupling. Popping the grid breaker on my MPP the SolarEdge resets and after 5 minutes of seeing power on the loads side of the MPP the SolarEdge will start producing power. I noticed pretty quickly that above 3,000w the MPP starts frequency shifting but the SolarEdge was not reducing its power. At around 4,000 watts the MPP frequency shifted all the way up to 61Hz, then the SolarEdge throws a fault and stops producing power. It seems the SolarEdge is producing too much AC power for the MPP's loads side. After a couple of moments the MPP will come back down to 60Hz and the process will repeat if you let it.
I got into the settings of my SolarEdge inverter but didnt see the P(f) settings option referenced in the SolarEdge documentation I found. Through trial and error I figured out changing my County & Grid mode from "US 240V" to "US/Rule21 240V" in inverter started to listen to frequency shifting. And through tweaking some of those options I got the most output with the MPP.
Now when my SolarEdge get up around 4,000w it reports a "throttled" through monitoring and decreases its output in accordance with the frequency shifted.
Warning - Seek guidance from a solar installer or a licensed electrician before modifying the settings on your SolarEdge inverter. Follow all local electrical code and grid operating rules for your region.
Modifying the Settings on your SolarEdge Inverter
In order to set your County & Grid mode to "US/Rule21 240V" you must be on CPU version 4.4.70, Check the California Electric Rule 21 pdf in the references section below for exact versions.If you need to update your firmware you must use the SetApp option below. Otherwise you can edit your settings with either option below.
Editing the configuration through WIFI and a web browser
- Enable wifi direct on the inverter by switching the red toggle switch on the inverter to "P" position for less than 5 seconds.
- Connect to the inverter access point like you would for a normal WI network. The wifi password is published at the right side of the inverter. If your having trouble connecting to the wifi network try a different computer or smartphone.
- Open up a browser and go to http://172.16.0.1
Updating the firmware and editing the configuration through the SolarEdge SetApp
To use the SetApp you must first create an installer account. As far as I can tell anyone can.- Go to the SolarEdge website, create an account as an "installer". Follow the prompts and you should now have a SolarEdge installer account.
- Download and login to the SetApp on your smartphone.
- Follow the on screen prompts to update your firmware or edit your SolarEdge inverter's configuration.
Settings I use to Frequency Shift
- Under Country & Language set Country & Grid to US/Rule21 240V
- Reactive Power - CosPhi
- CosPhi - 1
- CosPhi(P)
- P0 - 0 - 1
- P1 - 0 - 1
- P2 - 50 - 1
- P3 - 100 - -0.95
- P4 - 100 - -0.95
- P5 - 100 - -0.95
- Q(U)
- P0 - 50 - -4.12
- P1 - 97.83 - -4.12
- P2 - 97.83 - -4.12
- P3 - 102.17- 4.12
- P4 - 102.17- 4.12
- P5 - 120 - - 4.12
- Q(P)
- P0 - 0 - 0
- P1 - 25 - 0
- P2 - 50 - 0
- P3 - 60 - 0
- P4 - 70 - 0
- P5 - 100 - 0
References
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