Voltsys has designed a range of intelligent interfaces to rectify the wild AC from a turbine for use with inverters, manage turbine speed with dump loads and provide data-logging and inverter over-voltage protection. The controller also stores the power curve for the turbine and takes control of the inverter output so that solar inverters can be used for wind and hydro turbines.

Wind turbines are usually designed to either be loaded and braked in the event of excess wind, or left open circuit (e.g. with pitch control) to protect the inverter. Depending on the configuration, our controller has a relay output to control either a disconnect contactor, or a 3 phase AC braking load. There are two options; Dump Load and Contactor Disconnect

Dump Load

A DC dump load can be switched either as a variable load using PWM or with on/off set points. Both options are fully configurable and can be used to manage turbine over-voltage, or to slow a turbine in gusts.

In a grid failure, VS25K DL model provides a load with on/off set points only.

Contactor Disconnect

Suitable for self-pitching turbines, this disconnects the turbine and leaves it free spinning in the event of either over-voltage or grid failure. It then features a soft-start when turbine voltage and frequency are back in range to prevent inrush current on the inverter. There is no dump load option with this model.

Data Logging

When a fault has occurred, datalogging can indicate the nature of the fault. The controller stores logs for 1 year on a micro-SD card. Logged information includes;

• Turbine RPM (as frequency), both average and peak
• Turbine DC Voltage
• Power Exported (based on pulses from meter)
• Wind Speed (if anemometer present)
• Controller brake, dump load and any fault status
• Turbine phase loss detection
• Inverter Status including;
  • AC Voltage & Current
  • DC Voltage & Current

Rectifier and Capacitors

The controllers come with a range of options for rectifier and capacitor sizes depending on power and working voltage.

AC Grid Detection

The controller can respond to grid failure or inverter failure and shut down the turbine accordingly.

LCD Screen (inside the enclosure)

A LCD screen provides basic information on turbine status.

Data Sheets, Software & Manuals

Please see the Datasheet for the 80A Wind Interfaces by clicking HERE

Please find Installation Manual for VS Dump load controller model VS80A/DL800 by clicking HERE

Please find Installation Manual for VS Dump load controller model VS80A/DL800 V2 by clicking HERE

Please find Installation Manual for VS Disconnect controller model VS80A/Disc800 by clicking HERE

Please find Installation Manual for VS Disconnect controller model VS80A/Disc800 V2 by clicking HERE

Software

The following links will download ZIP files. These include drivers and software and should be unzipped to a folder on your computer before use.

Please find the software for programming the VS dump load controller model VS80A/DL800 by clicking HERE

Please find the software for programming the VS Disconnect controller model VS80A/Disc800 by clicking HERE