COMPENSATION OF THE DYNAMIC INTERCONNECTION BETWEEN CHANNELS IN ITERATIVE TWO-CHANNEL DIFFERENTIAL ELECTRIC DRIVE OF MACHINE-TOOL FEED

Construction of the high quality iterative multichannel servodrives needs to provide autonomy of control channels adjustment and operation. For realization of control channels autonomy conditions for the machine tools feed multichannel differential electric drives may be used compensating cross connections between channels. The kinematical diagram and mathematical model of movement for two-channel differential feeding electric drive, constructed by iterative principle are considered. Cross connections, compensating dynamic interconnection between channels by load (compensators of channels dynamic interconnection) in such two-channel electric drive with slave adjustment of channels are built and calculated. The block diagram of two-channel control system of drive including connection of channels dynamic interconnection compensators applying to electric drive of machine-tool feed model ??800???4 is obtained. The quality indexes comparative analysis results of dynamic and accuracy characteristics of proposed twochannel drive and similar one-channel feeding drive applied on the machine-tools such type are given. The estimation of compensating cross connections between channels applying effectiveness by computer simulation method is realized. A principle need as well as a potential effectiveness of applying of the channels dynamic interconnection compensators by load for improving of two-channel differential feeding electric drive operation quality with both optimized (standard) and a non-optimized (non-standard) slave adjustment of channels are shown.