Halogen Automatic Daylight Control System Based on CMAC Controller with Triangular Basis Functions

In general, in an automatic daylight control application, the automatic lighting control system (ALCS) attempt (due to the controller presence) to maintain constant the illuminance at a desired level even the daylight illuminance is variable. The paper describes the design, the implementation and the tuning of a CMAC (Cerebellar Model Articulation Controller) type controller used in an automatic daylight control system, where the lighting process is implemented by a halogen lamp. After the tuning of CMAC controller, is presented the behaviour of the ALCS when the illuminance is disturbed by a supplementary electric light source (a halogen desk lamp). Even the applied control structure uses a gross approximation of the real inverse model of process the ALCS will have a good behaviour achieving the imposed performances for an automatic control system used in this specific application.