BirdScan MV1

Adaptive wind park managment

The monitoring system allows the adaptive management of wind parks to mitigate collisions of migratory birds and bats with wind turbines. If the collision risk exceeds the specified threshold, the system alarms the plant operator or can automatically communicate with the wind park controls.

General description

BirdScan MV1 is a compact radar system for the continuous monitoring and risk management in wind farms. It uses a vertically directed conically shaped wide aperture beam to collect a rich set of information of the biomass in the sky. It does automatic real time quantification and classification that is used in the adaptive management algorithm to compute the collision risk, considering also environmental conditions like visibility and wind speed.

Graphic of beam

Comparison to traditional bird-radars

Traditional horizontally or vertically rotating bird-radars only illuminate a target for a fraction of second and wing-flapping pattern cannot be recorded. Therefore non-bird echos like insects cannot be properly excluded. In traditional rotating radars the surveyed volume is generally not well-defined and therefore computation of MTR is problematic.

Echo continuously flapping bird

Example of echo from a bird recorded system

Wing-flapping pattern

The wing-flapping pattern is recorded and can be extracted automatically, here a continuously flapping bird with 8 wing-beats per second.

Placement

Wind Turbines

Like for any radar, rotating blades within the measurement beam would produce strong disturbances. For good measurement results, the radar should therefore be placed with a minimum distance of approx. 150 m to the turbine center.

Offshore deployment

The system can be deployed offshore on any platform. It is therefore protected for offshore conditions. See following images:

Offshore deployment in container

Option 1: container

Server and processing module protected in a container; radar antenna on top of container protected by a small radome.

Offshore protection radome

Option 2: large radome

Standard compact MR1 system protected by a larger Radome (approx. 1.5 m width * 1.6 m height).

MT1 on research platform

Option 3: research platform

BirdScan MT1 has been used by Schulz et al. (2014) at Alpha Ventus. It was situated at the FINO1 research platform. Offshore deployment therefore has been proven successful.

High quality offline-analytics

The BirdScan radar systems can reliably detect even small passerines, bats and insects. Hundreds of thousands echos per month can be recorded. To leverage the full potential of this data, detailed off-line analytic can be performed.

Product Specification 

Features and functionality Details
usage adaptive management
area of application  risk mitigation, continuous long term monitoring
sensing technology  pulse radar 
antenna system  corrugated horn (rotating) 
transmitter frequency  x-band fixed 
transmitting power  25 kW peak 
range (height)  750 m 
resolution in space  10 m 
shutdown algorithm based on: – spatiotemporal distribution
– classification
– mean traffic rate
– environmental conditions
raw data  available for offline analyses
mean traffic rate  selectable heights 
raw data  available for offline analyses 
operation  automatic 24 h 
electrical connection  1x230V 400W 
communication  LAN / WAN / GPRS 
weight  Approx. 100 kg 
environmental design  MIL STD 810 F 
climate kit (optional)  HVAC, 1x230V 700W, 30kg 
offshore kit (optional)  available 

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