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For suspension control of low-speed PEMS train, the usual strategy is to separate the maglev module into two individual single points, which neglects the coupling effect of adjacent single point. To suppress the coupling effect, this paper suggests the method of designing control law considering the whole module. The simulation result verifies the validity of the new control law, which can suppress...
This paper studies the suspension control problem of permanent magnetic and electromagnetic hybrid high-speed maglev train under different fault condition. The suspension system model with joint structure is established. The linear quadratic optimal control theory is applied to implement the control algorithm design. The simulation analyzes multiple possible failure conditions of the joint joint structure...
Time delay is a kind of common nonlinearity, which is consisted in many parts of suspension system of high speed maglev train.In this paper, the dynamic behavior of suspension system of maglev train with time-delayed velocity and acceleration feedback signal is considered with rigid guideway. Taking time delay as its bifurcation parameter, the condition with which the Hopf bifurcation may occur is...
The problem of sensor-fault detection and diagnosis (FDD) of maglev system was studied based on principal component analysis (PCA). First, the mathematic model of single electromagnet suspension system was constructed, and then a sensor-FDD strategy was designed for it based on PCA. The performance of the FDD strategy was simulated. At last, tracking-differentiator (TD) was introduced into the sensor-FDD...
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