State–Space Parameter Identification in a Second Control Laboratory

A difficulty usually encountered in the preparation of a state–space-oriented control laboratory is that most of the system identification techniques available in the literature are for input/output models. Although in recent years there has been a growing interest in state–space identification methods, the application of these techniques in undergraduate courses are not immediate since they require a deep knowledge in mathematics and system theory. In this paper, experiments are proposed to estimate the parameters of a second-order state–space system, a dc motorgenerator group, whose model plays a key role in a laboratory that deals with state–space design. The efficiency of the proposed experiments is demonstrated with the estimation of all parameters of a real system.