Abstract: Combining the characteristics
of servo systems, tracking variable structure control law is
studied. Two kinds of new variable control law, the generalized
exponential approaching variable structure control law and the
integral variable structure control law are put forward for
discrete time domain. Taking pump-controlled-motor rotational
speed servo system for example, the experiment investigation and
digital simulation of integral variable structure control law
for discrete time domain are performed, the rightness of
conclusions are verified.
Key words:
Variable structure control Robustness Chattering Electrohydraulic servo systems
* This project is supported by National Natural Science Foundation of
China. Manuscript received on December 28, 1995
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