吸引力形磁気浮上車のためのH∞制御アクティブサスペンションの研究

概要

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Magnetically-levitated (MAGLEV) railway is being studied intensively in many countries for the purpose of its large scaled realization. In fact, some plans have already started in Japan.Now, the standard of ride-quality called UTACV is indicated by the power spectrum density of vertical acceleration described in the frequency domain. To satisfy this standard, we have to design a suspension system by using some effective control theory. But optimum control theory which deals with the integration of errors in the time domain is not always effective for the problem of ride-quality. In this paper, in order to solve this problem, H∞ control theory is applied to an active suspension system of a MAGLEV vehicle by adoping a suitable weighting function to be effective for the special frequency band at which high ride-quality is required. Then we have to pay attention to two points, namely keeping suitable clearance for safe running and ride-comfort. As for the former point, it is achieved by optimum control theory which is applied to the MAGLEV system, and the latter is improved by H∞ control theory which is applied to the suspension system.
社団法人電気学会の論文