Lidar and Its Wind Power Applications:The State of the Art
Lidar has in recent years matured into a reliable and versatile technology for remotely measuring wind speeds at all heights across the rotor diameter. A laser beam is used to acquire the radial wind velocity in a number of directions at a given height from the Doppler shift of the backscattered light. From this the wind velocity at that height can be derived. Lidar allows wind flow model validation. Deployment of a Lidar to sites where different runs of modelling have produced divergent results can help select which input parameter set is most useful for characterising wind flow by taking measurements that allow one to differentiate which model run is most suitable. The cost of data acquisition for offshore wind resource assessment can be reduced by adopting Lidar methods. Less stringent specifications are imposed for platform installation, and approaches that dispense with the need for a platform are being developed. Operational turbine performance monitoring can be helpfully augmented by using Lidar to obtain data describing the wind flow impinging upon a turbine or in its wake. Lidar is also useful in obtaining details of wind shear, turbulence, vertical inflow and wind veer at proposed and operational turbine locations. This talk reviews some of the uses Lidar has been applied to, some of its limitations, and looks forward to the developing role Lidar will grow into in the future of wind resource assessment.
Peter J M Clive
SgurrEnergy Ltd;225 Bath Street,Glasgow G2 4GZ,Scotland
国际会议
北京
英文
2008-10-29（万方平台首次上网日期，不代表论文的发表时间）