Grey extra-deleting theory-based governor control for hydro-generator unit

Abstract

The control effect by using the conventional method is not satisfied because of the grey character caused from time-variant parameters of hydro-generator units and its governor. The grey extra-deleting control theory is applied to the governor design of hydro-generator units in this paper. After the mathematic model of hydro-generator and its governor are founded, the grey extra-deleting controller is designed and its effect is studied compared with the conventional proportional–integral–derivative governor. The simulation results indicate that the grey extra-deleting controller can improve dynamic characteristic of hydro-generator units.

Keywords

• turbogenerators
• grey systems
• control system synthesis
• hydraulic turbines
• grey extra-deleting theory-based governor controller design
• hydro-generator unit
• grey character
• time-variant parameters
• mathematic model
• dynamic characteristic improvement