Photovoltaic Energy
Control Techniques are technology and service leaders for high
efficiency power conversion and control solutions for photovoltaic
energy schemes. Our systems are backed by manufacturing and
engineering centres globally employing over 1700 staff. Our unique
grid tie inverter technology utilises cost effective, mass produced
modules that are proven to give market leading reliability and
efficiency.
Kublank Project, Meridian (Germany)
Over 12 MW per day, every day
For 35 years
Control Techniques has specialised in power control and conversion.
We currently manufacture more than 12MW of inverters per day
worldwide. Our intelligent scalable technology ensures optimum
efficiency across varying radiation intensities, typically
achieving 97% to 98%. This is achieved using the following key
methods:
Inverter teaming operation
To enhance system efficiency over a wide radiation range, a
separate smaller inverter is used during low light conditions and a
larger inverter automatically switches in above a defined
threshold. The small inverter is typically rated at 20% of array
peak power, and the larger inverter at 100%+.
Maximum Power Point Tracking (MPPT)
The
control strategy constantly adjusts the DC input voltage set-point
whilst monitoring the power produced to find the optimum point on
the curve.
Fast availability
As each system is constructed from a small number of variants of
mass produced modules, products are usually available from stock or
short lead times.
Compact Dimensions
Control Techniques grid tie inverters have been designed using
advanced thermal modeling techniques to ensure that maximum
reliability is achieved with the most compact dimensions. Each
module is built on a rigid SMC chassis to reduce dimensions and
weight, making them easy to handle and service.
The picture below shows a complete solution for a 1.6MW array
together with a 350kW teaming inverter for low light conditions.
The complete system dimensions including the control section are
6000 wide x 2100* high x 800 deep (mm) (*including a 100mm
plinth).
Assured performance
Photovoltaic installations are designed for an operational life
of 20 years. First class performance and product reliability build
confidence, whilst worldwide support and optional performance
packages deliver customer assurance during the whole life of the
product.
Proven reliability
Control Techniques grid tie inverters are proven in thousands of
mission critical applications worldwide. They are designed and
manufactured using cutting edge processes to deliver class leading
reliability and system availability.
Built-in redundancy
Inverter modularity enables redundancy to be incorporated within
the system. If one inverter is unavailable due to servicing or
failure, the other modules continue to operate, thus minimizing
lost power generation
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