Study on the Algorithm of Electricity Coal Inventory Based on the Balance of Power Supply and Demand
Since the trend of electricity power industry reformation is to separate power plants from grid, it’s difficult for power Grid Company to interference the operation of plants. But as a manager of grid, it’s necessary for Grid Company to build a calculation formula of monthly standard electricity coal inventory to estimate the security of thermal power plant operation. y analyzing the special features of coal inventory management of thermal power plants. Taking into consideration of the changing demand of electricity and the uncertain supply of coal during a month, a practical inventory model with the target of maximizing the safety of generating electricity was built based on the modified classic safety stock formula to determine the optimal standard safety stocks. It’s depends on history data. Finally, On the basis of the solving results of power plants in Hunan province, the optimal safety stock was found, and the quantity of coal to purchase during a month were also suggested. The results provide a good reference for guiding the purchase and storage strategy of thermal power plant.