ファジィ推論を用いたLLS標定精度の向上対策

抄録

In this paper, a correction method of LLS (Lightning Location System) location error under fuzzy reasoning is proposed. LLS is a useful tool to inform lightning location to the dispatchers of Power System. However it has not enough accuracy of lightning location because of the direction error of antennas, the propagation error of radio wave, the disturbance of radiation from near structures and the random noise. In particular, the disturbance of radiation from near structures has serious influence on the accuracy of lightning location. To restrain the disturbance of radiation and to correct the location error, a fuzzy reasoning scheme is introduced. The fuzzy rules are automatically adjusted by a tuning law so that the location error between the actual lightning location and the LLS detecting location converges to zero. Simulation results demonstrate the effectiveness of the proposed fuzzy correction method for improvement of the accuracy of LLS.