Non-measurement-and-control arc segment shadow period thermal control compensation power saving method and system

The invention provides a non-measurement-and-control arc segment shadow period thermal control compensation power saving method. The method comprises the steps of 1, determining a satellite illumination period heater state and a shadow period heater state through thermal simulation, 2, in the satellite measurement and control arc section, sending a thermal control heater program control forbiddinginstruction and a thermal control heater state setting instruction according to the illumination period heater state, 3, sending a delay instruction with a time code according to the shadow time forecast and the shadow period heater state of the non-measurement-and-control arc section before the satellite goes out of the measurement-and-control arc section and enters the non-measurement-and-control arc section, and respectively setting the thermal control heater states of the non-measurement-and-control arc section when the non-measurement-and-control arc section goes into the shadow and goesout of the shadow, and 4,