AEG PV.630 manual Partner Operation Parameters, Extended operating mode, Later that morning

Protect PV.630 Operating Instructions

Later that morning:

Insolation increases. As a result, the inverter feeding power into the mains works at increased capacity. If capacity utilisation rises above a certain value, the system switches to single operation. The tie switch opens and the inverter which is switched off logically is switched on.

“Single operation” is active.

Evening:

Levels of insolation fall during the course of the day. The capacity utilisation at which the two inverters are working drops as a result. If the capacity utilisation of the two inverters falls below a certain value, the system switches to linked operation. The tie switch is closed and one inverter is switched off logically.

“Linked operation” is active.

Later in the evening:

Levels of insolation fall further. Capacity utilisation drops as a re- sult. If capacity utilisation falls below a certain value, sequence control on both inverters switches to the “Night” status. Power stops being fed into the mains.

“Linked operation” is active.

Night:

Overnight, a decision is made as to which inverter is to be active in linked operation the next day. So that both inverters are operated for approximately the same amount of time, the inverters are oper- ated alternately.

5.5.5Partner Operation Parameters

Load threshold for terminating the INV connection:

If capacity utilisation in linked operation rises above the parameter value, the system switches to single operation.

Load threshold for connecting the INV:

If capacity utilisation in single operation falls below the parameter value, the system switches to linked operation.

Maximum DC voltage difference for connecting the INV: When the system switches from single operation to linked opera- tion, the MPP trackers in both inverters are switched off and an at- tempt is made to match the DC voltages. The system only switch- es to linked operation if the difference is less than the parameter value.

5.6“Extended” operating mode

The “Extended” operating mode is an optional operating mode. Its parameters are set in the factory. The technical data sheet indi- cates whether the function is active or not. If the operating mode is active, the inverter can feed a higher power under certain condi- tions. The transformer must be designed for this increased feed-in capacity.

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