Ultra Precision Large Size Grinding System with Linear Motor Drive

Precision Motion Control of Linear Motor Drive Systems for Micro/nano-positioning

Micro and Nano-technologies need precision machines that can produce motion accuracy down to micro/nano-meter range. At the same time, these machines have to operate at high speeds to yield high productivity. Such an increasingly tight control performance requirement puts a significant challenge to control community and forces control engineers to look beyond traditional linear control theory f...

Output Feedback Neural Network Adaptive Robust Control With Application to Linear Motor Drive System

In this paper, neural networks (NNs) and adaptive robust control design method are integrated to design a performance oriented control law with only output feedback for a class of single-input-single-output nth order nonlinear systems in a normal form. The nonlinearities in the system include repeatable unknown nonlinearities and nonrepeatable unknown nonlinearities such as external disturbance...

Modified design method of an optimal control system for precision motor drive

The paper presents an improved design method of an optimal control system of a linear object with elastic coupling. The proposed method of the optimal control system design implies the selection of desired stability degree instead of the penalty matrixes selection procedure for the quadratic functional. The main idea of the method is the new state matrix utilization, which has its eigenvalues a...

9019 Motor Drive System Using SPM Inverter

Supervisory Genetic Algorithm Control for Linear Ultrasonic Motor Drive

This study presents a supervisory genetic algorithm (SGA) control system for a linear ultrasonic motor (LUSM) driven by a two-inductance two-capacitance (LLCC) resonant driving circuit. First, the motor configuration and driving circuit of an LUSM are introduced, and its hypothetical dynamic model is described briefly. Since the dynamic characteristics and motor parameters of the LUSM are highl...