抄録
Magnetically-levitated (MAGLEV) railway has been studied intensively in many countries for the purpose of its large scaled realization and in fact some plans have already also started in Japan.
In case of large scaled realization, a problem of how to reduce energy consumption must be discussed. To solve this problem a light weight vehicle is also used for a MAGLEV vehicle as well as convensional ones. Such a vehicle is flexible, which sometimes induces deterioration of ride-quality. Therefore to obtain high ridequality, active suspensions are applied to the vehicle. In this paper, we apply an H∞ control method to a system-model of the light weight vehicle including oscillation modes by adopting a suitable weighting function to be effective for a special frequency band at which high ride-quality is required.
In adition we pursue robust stability for both mass-variation by passengers' in and out and a modeling error by the neglect of the 3rd order oscillation mode and over.
At last the effect of our method proposed here is comfirmed by PSD (power spectral density) of the vehicle's acceration.
