Supply-Dominated Energy Balancing for Periodic Operation of Power System.

The integration of RESs such as wind generation system and photovoltaic generation system increases the risks of power fluctuations from the supply side. The uncertainty due to seasonal data, temperature variations, and consumer activity increases the risks of power fluctuations on the demand side. To accommodate the uncertainty of both generator side and consumer side, the power grid has to increase its ability to accommodate fluctuating power. Based on this, the robust energy balancing between power generators, consumers, and storage devices in a periodic operation is introduced. This paper proposes the minimum requirements on controllable generators, loads and storage devices for supply-dominated energy balancing of a system which includes fluctuating generator and load. The discussions on the periodic operation of the system enable us to apply the result to a long-term system operation.