Abstract
This paper presents the application of the sliding mode (SM) control method applied in the voltage regulation of stand-alone self-excited induction generator (SEIG) based systems under nonlinear and unbalanced loads. For this study, it is considered a three-phase three-wire topology, in which the voltage regulation is done by a distribution static compensator (DSTATCOM). It is proposed a SM controller to be applied in the current control of the DSTATCOM. The control is implemented so that in addition to regulate the voltage, the DSTATCOM can also compensate for harmonics and unbalances in the load currents, improving in this way the overall power quality of the system. The proposed control system is simulated in the software Matlab and implemented on an experimental setup. The test results show the implemented SM current control is able to reduce the harmonic and unbalance content of the generator voltages and currents.
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