buen dia estimados, estoy tratando de investigar como realizar el AC Coupling con mi sistema Huawei instalado en mi casa para trabajar con mi nuevo sistema Victron Multiplus 2 con bateria, trabajando en split phase 120/240VAC. He visto varios posts viejos donde aparecen opciones en la aplicacion Fu…

I’ll write in English. I have 3 phase Victron system (3X Multiplus II 3000) with 2 Huawei 3 phase inverters (12KTL + 5KTL) on AC input. Was thinking about moving 5KTL to AC output, but seems the better solution is to ditch 5KTL at all and replace it with SmartSolar MPPT RS 450/100. Result is better…

I understand the reason as to why we should DC couple. however, the investment is already done with the huawei inverters so the main reason is to work without investing in more hardware. I am already moving parts of the solar panels away from 1 of the solar inverters to a Victron 150/35 smart solar …

To my understanding it is dangerous to have Huawei inverters on AC Output in microgrid mode because Victron has no possibility to throttle Huawei’s generation in case of full battery and excess PV. In this mode PV inverters should be Fronius (or other compatible with Victron, like ABB). So for Huaw…

Of course, we are in very similar situations, with the exception of the 3ph system. I have been finding old posts about AC-coupling with Huawei. this one stands out specifically as they found the options to configure Frequency derating on the huawei app. However, these options are not available to m…

Hello, my SUN2000-4KTL IS working with frequency shifting, using NEtherlands grid settings. I had to change standard frequency settings in the ESS assistant, because they are dedicated for example to Fronius. Additionally I programmed a fail safe in Node Red to trigger relais one on Cerbo GX which i…

Thank you for the reply, what I wish to know the most is the step by step within Fusion Solar app to access the overfrequency derating options. As far as I have found information, these options are only available when selecting certain grid codes and only during device commisioning. Can you confirm …

I believe I replied to the wrong message. As a follow up, this are the settings available to me at this point within Fusion Solar: [Screenshot_20250530_163819_FusionSolar] This is the software version: [Screenshot_20250530_164037_FusionSolar]

Hi, some gridcodes at the SUN2000 settings do not allow frequency shifting I think. Here is the screendumps of the location where to adjust settings. [Screenshot_2025-05-31-06-52-47-73_40deb401b9ffe8e1df2f1cc5ba480b12] Be aware that page is an example, so displayed values differ from my actual se…

Sistema Huawei Sun2000 3ktl-l1 AC-Coupling con victron Multiplus II, en 120/240VAC

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icdeadppl2 (Carlos MDC) 30 May 2025 22:41 8

I believe I replied to the wrong message. As a follow up, this are the settings available to me at this point within Fusion Solar:

This is the software version:

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Sistema Huawei Sun2000 3ktl-l1 AC-Coupling con victron Multiplus II, en 120/240VAC

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