Interaction between radar systems and wind farms

Matthews, James; Sarno, C.; Herring, R. N.

doi:10.1109/lapc.2008.4516966

Cited by 10 publications

(11 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The greater the RCS the greater is the reflected power of the radar signal. Generally, RCS depends on shape and size of the object same as polarisation, frequency and incidence angle of the radar signal [1].…”

Section: Assessment Of Radar Cross Section (Rcs)mentioning

confidence: 99%

See 1 more Smart Citation

Surface integral equation analysis of the electromagnetic interference (EMI) impact of wind turbines on radar systems

Poljak¹,

Dorić²,

Cavka³

2014

WIT Transactions on Modelling and Simulation

View full text Add to dashboard Cite

Wind turbines (WT), as large conducting structures, may disturb the use of radar in civil and military applications. Therefore, an efficient simulation of a radar system in the presence of a WT is required. This paper deals with WT impact to the radar system operation. The formulation is based on the corresponding surface integral equation (SIE), i.e. the electric field integral equation (EFIE) for metallic objects. The solution is carried out using the Boundary Integral Equation Method (BIEM) combined with physical optics (PO). The model aims to account for the rotation of the blades and to ensure corresponding radar cross section (RCS) prediction. Some illustrative computational examples arising from realistic scenarios are given in this paper.

show abstract

Section: Assessment Of Radar Cross Section (Rcs)mentioning

confidence: 99%

“…On the other hand, WTs are at typical radar frequencies large structures having a large radar cross-section (RCS). Consequently, due to the blade rotation, WTs may disrupt the use of radar in either civil or military applications [1].…”

Section: Introductionmentioning

confidence: 99%

Surface integral equation analysis of the electromagnetic interference (EMI) impact of wind turbines on radar systems

Poljak¹,

Dorić²,

Cavka³

2014

WIT Transactions on Modelling and Simulation

View full text Add to dashboard Cite

show abstract

“…Several flight tests have been performed [38,39,40,41,42,43,44,45,46] in the presence of large wind farms, and radar performance evaluated. Studies reveal a number of problems created by wind farms, including the creation of shadow regions that hide targets, increased clutter that reduces the likelihood of target detection, and multipath that creates false plots of target location.…”

Section: Radar-windfarm Interactionmentioning

confidence: 99%

“…Increased clutter raises the detection threshold, reducing probability of detection or, if the detection threshold remains low, increasing constant false alarm rate and false plots. Flight tests near wind farms have documented both effects [38,39,40,41,42,43,44,45,46].…”

Section: Figure 5 Shadow Region Caused By Obstructions To Rf Propagationmentioning

confidence: 99%

Radar-cross-section reduction of wind turbines. part 1.

Brock¹,

Loui²,

McDonald³

et al. 2012

View full text Add to dashboard Cite

In recent years, increasing deployment of large wind-turbine farms has become an issue of growing concern for the radar community. The large radar cross section (RCS) presented by wind turbines interferes with radar operation, and the Doppler shift caused by blade rotation causes problems identifying and tracking moving targets. Each new wind-turbine farm installation must be carefully evaluated for potential disruption of radar operation for air defense, air traffic control, weather sensing, and other applications. Several approaches currently exist to minimize conflict between wind-turbine farms and radar installations, including procedural adjustroents, radar upgrades, and proper choice of low-impact wind-farm sites, but each has problems with limited effectiveness or prohibitive cost. An alternative approach, heretofore not techoically feasible, is to reduce the RCS of wind turbines to the extent that they can be installed near existing radar installations. This report summarizes efforts to reduce wind-turbine RCS, with a particular emphasis on the blades. The report begins with a survey of the wind-turbine RCS-reduction literature to establish a baseline for comparison. The following topics are then addressed: electromagnetic model development and validation, novel material development, integration into wind-turbine fabrication processes, integrated-absorber design, and wind-turbine RCS modeling. Related topics of interest, including alternative mitigation techoiques (procedural, at-the-radar, etc.), an introduction to RCS and electromagnetic scattering, and RCS-reduction modeling techniques, can be found in a previous report.

show abstract

“…Consequently, due to the blade rotation, WTs may disrupt the use of radar in either civil or military applications [20].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic compatibility issues of wind turbine analysis and design

Poljak¹,

Čavka²

2015

Int. J. CMEM

View full text Add to dashboard Cite

This article reviews numerical modeling methods for certain electromagnetic compatibility topics in wind turbine (WT) analysis. Some scenarios in which WTs behave as electromagnetic interference sources and victims, respectively, are considered. The formulation is carried out in the frequency domain and it is based on the related Electric Field Integral Equation type. The numerical solution of the governing equations is obtained by some variants of the boundary element method. The computational examples are related to the transient response of WTs struck by lightning and to the disturbances of radio system operation caused by WTs. The analysis of WT impact to the radar system operation is carried out by solving the corresponding integral equations via the boundary integral equation method combined with physical optics.

show abstract

Interaction between radar systems and wind farms

Cited by 10 publications

References 3 publications

Surface integral equation analysis of the electromagnetic interference (EMI) impact of wind turbines on radar systems

Surface integral equation analysis of the electromagnetic interference (EMI) impact of wind turbines on radar systems

Radar-cross-section reduction of wind turbines. part 1.

Electromagnetic compatibility issues of wind turbine analysis and design

Contact Info

Product

Resources

About