GENDRIVE 10KW 3-PHASE
GRID INVERTER FOR GRID CONNECTION OF WIND TURBINES
Fully G83/G59 compliant for UK installations.
Stackable to allow grid connection of wind
turbines up to 50Kw on 3-phase.
A 10KW single-phase grid
tie wind turbine inverter is now available.
• Integrated active rectifier
• “Plug & Play” design for
• Suitable for horizontal &
vertical axis turbines
• Maximum Power Point Tracking
• Low speed energy capture
• Connect multiple units for
• High quality sine wave output
• User programmable operation
• Compact wall mounted design
• Grid connected operation with
• 5 year warranty
• AUTOStart Technology for
• Simple plant integration with
• Wireless health monitoring
• Data logging and acquisition
• Extended warranty
• Multiple communication protocols
inverter is an AC : AC converter – thus avoiding the need for an
Simply connect the three phases of the
generator to the input and the three phases of the grid connection
to the output via manual isolation switches. The rectifier in unit
is not passive but acts to boost the generator voltage to achieve
low cut in voltage. It can also can adjust the phase angle of the
generator to increase/decrease terminal voltage. Both the input and
output have disconnection switches and protection. The unit has
communications to transmit operating data and for monitoring.
Control I/O peripherals are also available to measure sensors and/or
control external switches etc
This is nominally rated at 10kW due to
consideration of voltage range, ie 380-415V and G83 current limit.
However, on UK mains voltage the inverter can produce 12kW continuous
output providing generator speed and hence volts are available.
There are switches on both turbine input
and grid output. This eliminates the need for any additional automatic
switch gear, instead just manual isolators are required as per safety
and grid code requirements. In the event of a loss of mains condition,
turbine speed will ramp without load and will disconnect from the
output of the generator to prevent failure through over voltage.
Whilst loaded, the active rectifier can control the generator voltage
in such a way so as to prevent over voltage. The degree of protection
offered by this feature is dependent on the generator parameters,
particularly inductance and emf. In extreme cases an external resistor
may be required if either 1) speed needs to be constrained in the
event of loss of mains or 2) the inverter is required to stay on line
but has insufficient generator impedance or excessive emf to weaken
the terminal volts.
The inverter has to lock onto the input
voltage, so whilst the minimum input voltage is about 50 Vac line to
line, this does depend on generator pole number and hence frequency.
To generate the full 10kW output, a
minimum generator emf of approximately 340 Vac line to line is
An input contactor will open to prevent
damage to the inverter at approximately 500 Vac line to line
Today we need to use an isolation
transformer to connect multiple units in parallel to achieve higher
powers. However, a revised version of the product is due in Q1 of 2011
which eliminates the need for this.
Data logging and communication
As explained we write all data to
internal SD card and then email the user summary data for a set
period. This is done through wireless comms. There will soon be an
option for wired connection for areas with poor network coverage.
For advanced users, there is an
integrated control I/O setup with analogue, digital and relay contact
I/O. There is also a CAN link through which communication to an
external controller can be carried out.
THE GENDRIVE 10kW
3-PHASE INVERTER IS £4500.00 EX VAT
= £ 5400.00 inc VAT.
shipping to a UK address.
Please bear in mind
that no additional controllers or transformers are required.