Electromagnetic Interference by Wind Turbine Generators

Abstract

The interference produced by horizontal wind axis turbine generators on a number of electromagnetic systems has been identified and quantified. The interference to TV reception has been exhaustively studied, and a method has been developed to approximate the interference zone of a WTG. This can be used to estimate the effects of a WTG on TV reception and thereby establish minimal criteria for siting of such a machine. No significant inteference to FM broadcast reception has been found. Studies of the interference to two specific air navigation systems (VOR and DVOR) indicate that no significant degredation in the performance fo these systems should occur if the WTG is sited according to the standard guidelines established by the FAA. The performance of a repeating station of a typical microwave communication link system located in the vicinity of a WTG has been analyzed and guidelines have been developed which can aid in siting a WTG so that it produces minimum impact on the link system performance.