Sliding-Mode Theory Applied to Zero-Current Control of a Hybrid MAGLEV System

• Main Authors: Yeh, Zhi-Neng, 葉智能
• Other Authors: Yon-Ping Chen
• Format: Others
• Language: zh-TW
• Published: 1997
• Online Access: http://ndltd.ncl.edu.tw/handle/98933749873565354581

碩士 === 國立交通大學 === 控制工程系 === 85 === Magnetic levitation system have these advantages such as friction-less, low rub, and maintain-free. Its applications can cover these field of mass transportation, motor bearing, etc. Due to the recent advent of the rare-earth high-energy-product permanent magnet, it has become feasible to control a MAGLEV system using hybrid magnet with near-zero current dissipation. This paper proposes a sliding-mode control algorithm applied to the zero-power control of a hybrid magnetic levitation system. The controller designed here is highly robust and suitable for control of systems with heavy nonlinearity, which characterizes the MEGLEV system. Therefore, expected control performance could be attained. In addition, model following sliding-mode control algorithm is proposed to improve the transient response and the effects are demonstrated by simulation results.