Abstract As an important power component of the material conveying system, motor will inevitably cause vibration mechanical structure when rotating, thus affecting stable operation motor. Most systems have high requirements for level, and usually take performance electrical as evaluation criteria same level. A nonlinear terminal sliding mode controller is proposed to solve phase delay problems ...

In this paper, two new identification schemes based on VSS theory and sliding mode are developed to address the time-varying parameter identification problems. The proposed direct identification scheme can successfully estimate fast time-varying parameters when the process is linear in the parametric space. The proposed indirect identification scheme further exploits the possibility of estimati...

Model uncertainties and external disturbances present significant challenges for controlling fixed-wing unmanned aerial vehicles (UAVs). An adaptive smooth second-order time-varying nonsingular fast terminal sliding mode control method is proposed in this paper attitude airspeed of UAVs with model disturbances. This does not require information about the bounds can avoid overestimation gains. A...

This paper addresses problems on the interception of hypersonic vehicles in near-space. The main contribution is to study a head pursuit guidance law based fractional-order sliding mode theory and analyze stability provided. Firstly, differential operator, which has characteristics such as fast convergence memory, introduced into design surface, can be designed improve performance system. this ...

the problem of relative motion control for spacecraft formation flying in eccentric orbits is considered in this paper. due to the presence of nonlinear dynamics and external disturbances, a robust fuzzy sliding mode controller is developed. the slopes of sliding surfaces of the conventional sliding mode controller are tuned according to error states using a fuzzy logic and reach the pre-define...

in industrial robotic manipulator, due to the presence of quite nonlinear dynamic and structural and nonstructural uncertainties, a precise model is not easily obtained. as a result, designing a controller with a suitable function based on system model is a challenging issue. sliding mode control is a robust control with numerous applications which can overcome the aforementioned uncertainties....