Robust optimization for load scheduling of a smart home with photovoltaic system

• Robust household load scheduling is presented for smart homes with PV system.
• A robust counterpart is formulated to deal with PV output uncertainty.
• The robust counterpart is finally transformed to a quadratic programming problem.
• Load schedules with different robustness can be made by the proposed method.
• Feed-in tariff and PV output would affect the significance of the proposed method.

In this paper, a robust approach is developed to tackle the uncertainty of PV power output for load scheduling of smart homes integrated with household PV system. Specifically, a robust formulation is proposed and further transformed to an equivalent quadratic programming problem. Day-ahead load schedules with different robustness can be generated by solving the proposed robust formulation with different predefined parameters. The validity and advantage of the proposed approach has been verified by simulation results. Also, the effects of feed-in tariff and PV output have been evaluated.