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Phoenix Inverter out connected with Multiplus-II AC out

I'm studying a configuration to integrate wind turbine generator with photovoltaic without problems.

The idea is to have wind turbine system to load its own battery system (that is not very large but enough to work as a buffer) and then have that batteries to feed the AC loads with an inverter.

Photovoltaic and wind generators works independently with their independent batteries but the multiplus-II should merge the outputs and eventually use the phoenix out to load photovoltaic batteries. All managed by Cerbo GX

It is not a real parallel connection because phoenix and multiplus feed the same loads but use different DC inputs.

Any experience with that kind of configuration? Possible problems?


Kind Regards,

Danilo

Multiplus-IIPhoenix InverterVE.Bus
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2 Answers
Mike Dorsett avatar image
Mike Dorsett answered ·

main problem here is that both inverters are "Grid forming" and as such, you can't connect the AC outputs in parallel. for the wind generator you need an inverter similar to the pv grid connect inverters - but modified to cope with a wind generator. (The input needs to be shorted when the output is not required).

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blackstar avatar image blackstar commented ·
Any idea of a grid connected system that can "talk" with Cerbo GX? (at least to simplify management)?
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Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

That will not work because the outputs can't be synchronized.

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