Optimal State Feedback Control of a Microalternator Using an Observer

Experimental results obtained from the application of modern control techniques to a microalternator system are presented. An observer which uses only one output of the system to estimate the states is developed and used to implement an optimal state feedback control strategy on the microalternator system. Extensive tests of the proposed control scheme are effected over a wide range of conditions which include close-up three phase faults and operation beyond the dynamic stability limit of the system without supplementary control. These: experimental results, supported by extensive digital computer simultation indicate the effectiveness of the control scheme in improving the systee performance in practice.