The goal of the tutorial is to give an overview of the newest unified design methodology of continuous-time or discretetime nonlinear control systems which guarantees desired transient performances in the presence of plant parameter variations and unknown external disturbances. The tutorial presents the up-to-date coverage of fundamental issues and recent research developments in design of nonl...

An optimization approach to control reconnguration, based on eigenstructure assignment , for control systems with output feedback is presented. The emphasis is on the recovery of the nominal closed-loop performance, which is determined by the closed-loop eigenvalues and eigenvectors. The proposed scheme preserves the max(r; q) most dominant eigenvalues of the nominal closed-loop system and dete...

The study presented the design of an efficient motorized antenna positioning control system using Model Following Control (MFC). It was desired to a improve stability and reduce position error. dynamic model direct current (DC) servomotor developed achieve this. An MFC designed that integrated Proportional Integral Derivative (PID) controller in frequency domain for tuning loop terms transient ...

In order to enhance the transient performance of aircraft high voltage DC (HVDC) generation system with wound rotor synchronous machine (WRSM) under a wide speed range, nonlinear PI multi-loop control strategy is proposed in this paper. Traditional method hard achieve dynamic requirements HVDC so parameter adjustment, load current feedback and are added excitation double loop control. The trans...

his article describes a nonlinear proportional and derivative T ( N P D ) controller and its use for both non-contact transient force control (NCTFC) (zero velocity when contact occurs) and contact transient force control (CTFC) (non-zero velocity when contact occurs). The key advantages of NPD control are its high disturbance rejection and robustness to time delay. We present a gain design met...

Abstract: For disadvantages of the large flux and torque ripple and current waveform distortion of Direct Torque Control (BASIC-DTC), the DTC scheme for induction motor based on torque angle closed-loop control was presented and the proposed scheme was realized with three methods of torque angle closed-loop control. The main characteristics of three methods of torque angle closed-loop control f...

In order to implement a quasi-optimal trajectory derived from pinch theory [1,2], a temperature tracking control system composed by an open-loop reflux ratio control plus a closed-loop correction for disturbance rejection is proposed. To adjust the closed-loop controller we use the referential dynamic reaction of the process [3] and tuning rules [4] that, though they were originally developed f...

this study proposes a combination of a fuzzy sliding mode controller (fsmc) with integral-proportion-derivative switching surface based superconducting magnetic energy storage (smes) and pid tuned by a multi-objective optimization algorithm to solve the load frequency control in power systems. the goal of design is to improve the dynamic response of power systems after load demand changes. in t...

Nowadays, liquid rocket engines use closed-loop control at most near-steady operating conditions. The of the transient phases is traditionally performed in open loop due to highly nonlinear system dynamics. This situation unsatisfactory, particular for reusable engines. open-loop cannot provide optimal engine performance external disturbances or degeneration components over time. In this articl...

an automatic fuzzy control (AFC) system for a parallel dc-dc converter, and the control objective is to achieve the stable voltage regulation and uniform current distribution. The average model for an example of a three-module boost converter, which is composed of three conventional boost converter frames in parallel connection, is derived for the design of this AFC system including voltage and...