10.07.2015   SonSolar

The integrated group G. I. I. G. E. for hybrid plants

A specific integrated group of AC/DC converter, inverter and static switch (see figure 1), with particular technical solutions to supply the Hybrid System the necessary safety and reliability characteristics has been purposely developed by SIEL with the contribution of ENEL.

In normal conditions, the photovoltaic field and the battery storage deliver power on a DC bus and inverters, that play in redundant parallel, generate the grid. The diesel generator is connected to the DC bus via controlled rectifiers but it can directly feed the grid through a by-pass switch.

The PLC control will optimise the PV generator contribute and assure the best continuos service through the management of the battery storage and of the diesel generator.

A

Group of INVERTER,

Rectifier, Static switch

1

Rectifier Fuse

2

Rectifier HF Filter

S1

Disconnecting switch

of input grid

3

Rectifier

S2

Disconnecting switch

of output

4

Inverter

S3

By-pass switch

5

DC Bus

S1

Disconnecting switch

of emergency grid

6

Static switch

S2

Disconnecting switch

of output

7

Emergency grid HF filter

8

Out HF filter

SB

Disconnecting switch

of battery

9

Emergency grid Fuse

IN1

, IN2 Diesel Generator input grid