User's Manual

SINVERT PVS in power plants 17

Regulation of the PV plant according to BDEW Guideline and the current amendment of the Renewable Energy Act (EEG) by means of

SINVERT PVS ControlBox 300 displayed with WinCC

The "Generating Plants in the Medium-Voltage Grid" BDEW

guideline stipulates this requirement for all systems feeding

in at the medium-voltage level. Its primary benefit is that it

enables grid operators to limit the output of the plant by

remote means in accordance with § 6 of the Renewable Energy

Act 2009.

The ControlBox 300 offers a wide range of open-loop and

closed-loop control functions, e.g.:

– Specification of a fixed active power for all individual

SINVERT PVS inverters in the PV plant, e.g. setpoint

value = 2 MW (active power fixed value)

– Specification of a fixed reactive power for all individual

SINVERT PVS inverters in the PV plant, e.g.

setpoint value = 100 kvar inductive (reactive power

fixed value)

– Specification of a fixed power factor cos ϕ for all

individual SINVERT PVS inverters in the PV plant, e.g.

setpoint value = -0.95

– Regulation of the active power for the individual

SINVERT PVS inverters in the PV plant as a function of

the active power actually measured at the grid infeed

point, to 0%, 30%, 60%, and 100% of the rated active

power of the PV plant. (Active power reduction in

accordance with § 6 of the Renewable Energy Act

– Regulation according to Q(U) characteristic

– Regulation according to Q(t) characteristic

– Regulation according to P(f) characteristic

– Ramps for system ramp-up and ramp-down, i.e. con-

tinuously approaching the setpoint

The SINVERT PVS ControlBox 300 offers the following

connection options:

– SIMATIC components with digital inputs

– SENTRON PAC3200 Power Monitoring Device for

measuring actual values at the grid feed-in point

–4 x RJ45 ports

– 2 x fiber-optic ports, for cable lengths up to 5 km

SINVERT_PVS.book Seite 17 Donnerstag, 24. Mai 2012 3:01 15