Inverter

The type and selection of inverter will depends upon the system as described below A. Local Grid Tie Inverter with Battery Bank Charger –(GISB)

The Single/ Three phase DSP based, Grid Tie Inverter is designed to operate as a multi function power conditioning unit combining the functionality of a grid interactive Wind/ Solar inverter with a true on line single conversion UPS. The GSC system allows the option of combining renewable energy sources (Wind/ Solar ) on priority with the functionality of an industrial UPS system. Based on the Wind/ Solar power available, connected load and battery state of charge the unit configures itself as either a charger or inverter and will intelligently start an optional back up diesel generator if the battery reserve cannot be maintained by the renewable contribution and there is loss of grid power.

In charging mode the system maintains the battery voltage at a user specified value and charges the battery in accordance with Battery manufacturer procedures, thus maximizing the life of the battery bank. The DSP based Grid Tie Inverter provides output voltage conditioning when operating in a grid interactive mode and it has optional features to export excess renewable (Wind/ Solar) power to the Local grid in compactable with the Local State Government Electricity Board Regulations.

Time and date stamped system data logs and fault logs available for importation into a spreadsheet for analysis via a local RS232 connection. Remote control and monitoring option using either a standard or GSM modem available. Communication based on LAN / WAN protocol is also available. (Optional feature).

B. Local Grid Tie Inverter without Battery Bank –(GISB)

The Single/ Three phase DSP based, Grid Tie Inverter is designed to operate as a power conditioning unit capable of exporting all available wind/ solar power to the local utility grid supply. A fast and efficient MPPT extracts the maximum available power from the wind / solar array and exports it to the grid. If the grid voltage and / or frequency goes out of a preset range the inverter is immediately disconnected from the grid.

The inverter will reconnect after a pre determined time when the grid is back in range. When the exported power is below a low, preset value or the wind / solar generation is below a set value for a pre determined amount of time, the inverter is disconnected from the grid and is operated in a "sleep mode". In this mode the inverter power stage components are switched off thereby keeping the stand by losses to a bare minimum.

Time and date stamped system data logs and fault logs available for importation into a spreadsheet for analysis via a local RS232 connection.

The system have the optional features for Remote control and monitoring using either a standard or GSM modem available. Communication based on LAN / WAN protocol is also available.

C. Pure Sine Wave Inverter –(OGBC )

The inverter of required capacity is used to convert the DC current from the batteriy bank to usable 230 AC, 50Hz power to connect the designed static load.