Fuzzy-Based Multi-Point Interconnected Control System of Electrical Drives for Sheet Metal Forming

Abstract

This article describes the approach to implement the fuzzy interconnected control system for sheet metal forming electric drives. The displacements of forming rods of sheet metal forming electric drives system depend on various factors and some of which can only be described by qualitative characteristics (indexes). The possible way to achieve desired output parameters of all local drives systems is using compensation method. However, it is difficult to achieve desired outputs by using conventional compensation methods because of having interrelation error (effect) between local forming electric drives. In this article, suggested compensating interrelation effect between local forming electric drives by using fuzzy compensation method. The fuzzy compensation method based on theory of differential inclusion. Mathematical equations of this fuzzy compensation approach are described. Algorithm for implementation of fuzzy controller to achieve the specified control accuracy is presented.