Abstract
This paper deals with the control of a stand alone power system comprised of a pitch controlled wind turbine and two diesel units. First, a single-input single-output (SISO) self-tuning regulator (STR) is designed for blade-pitch control, with a conventional diesel governor control. Then, a two-input two-output (TITO) STR is used for coordinated pitch and diesel governor controls. Finally a case study is made with a superconducting magnetic energy storage unit (SMES), introduced as a damping device. In this case, a three-input three-output STR controls the wind-diesel-SMES system in a co-ordinated manner. The design of the various control schemes ensures that the system performs well under both wind and load disturbances.
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