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冲压式气动系统PWM线性化控制及其鲁棒性分析(英文) 被引量:1
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作者 权维利 姚晓先 林凡 《系统仿真学报》 EI CAS CSCD 北大核心 2008年第19期5391-5395,共5页
针对一种冲压式气动系统,建立了冲压式气动系统的数学模型。考虑到系统的非线性特性,设计了一种基于PWM线性化的控制方法。由于冲压式气动系统结构的不确定性,气源压力的波动,负载大小的变化将导致系统数学模型的变化。针对系统参数的... 针对一种冲压式气动系统,建立了冲压式气动系统的数学模型。考虑到系统的非线性特性,设计了一种基于PWM线性化的控制方法。由于冲压式气动系统结构的不确定性,气源压力的波动,负载大小的变化将导致系统数学模型的变化。针对系统参数的不确定性设计了舵机系统的控制器,并证明了在此控制器下系统的鲁棒稳定性。结果表明:系统的性能满足系统设计要求,基于PWM线性化的控制器设计具有较强的鲁棒性。 展开更多
关键词 冲压式气动系统 线性 pwm线性化 鲁棒性
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Nonlinear Control Model of Synchronous Motor with Excitation and Damper Windings
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作者 Marijo Sundrica Zlatko Maljkovic 《Journal of Energy and Power Engineering》 2014年第2期379-389,共11页
In this paper, a new control method for synchronous motor with excitation and damper windings is presented. It is based on one type of nonlinear control; feedback linearization control. To make a realization in the se... In this paper, a new control method for synchronous motor with excitation and damper windings is presented. It is based on one type of nonlinear control; feedback linearization control. To make a realization in the sense of electric drive, symmetricM space vector PWM (pulse width modulation) is applied. Estimation of damper winding currents via Lyapunov function for the whole estimated system is done. The aim of control is to make tracking system for rotor speed and square of stator flux. Simulation of motor starting to predefined operating points is done, and also maintaining these points during step change of load torque is obtained. Simulations give good results. 展开更多
关键词 Synchronous motor nonlinear control Lyapunov stability observer control feedback linearization electric drivesimulation.
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