Study on digital dual closed-loop chopper inner-feed cascade variable speed drive system based on state-space averaging model and its application;

The research on mechanical characteristic of chopper cascade speed regulation system;

The design of inner-feeding chopper cascade speed regulation system and some problems which need been noticed;

This paper briefly introduced the purpose and principle of chopping,summarized the effects of chopping on the characteristics and microstructure of sausages,and discussed the problems on optimizing chopping parameters.

The related factors including recipe, emulsification,chopping,cooking and smoking are significantly influence the end products.

The effects of pH value and chopping time on the physical characteristics of beef surimi were studied and the optimal processing parameters were obtained.

The wire control circuit is composed by pulse trigger circuit,voltage of armature feedback circuit and chopped wave circuit.

The GTO Chop Adjustable Speed System for Novel Subway Vehicle;

The new program is proposed to use DC chopper technology for the realization of AC drive system without transformer.

It is a new scheme to realize miniaturization and lightening of on-board traction transformer by using DC chopper for AC drivesystem of high speed train without transformer.