In the modern economic and social development, we cannot leave the support of the power grid, so it is important to ensure the safe operation of grid system. Although the grid system is more and more perfect, in the great objective environment, along with the power grid load increasing, the grid system faces a huge challenge, such as global warming, the influence of the bad environment, and the influence of the electric power market operation, which brings certain of difficulties of stable operation of power grid. This paper mainly analyzes the solutions of problems in power supply system from intelligent power grid and the load dispatch.