Study on the stochastic dynamic programming method based on the expected benefit

According to mathematical statistic's mathematic expectation theory, the stochastic dynamic programming method based on the expected benefit is established for the reservoir power plant. The model's objective function, solution ideas and process are introduced in detail. The calculation results of example indicate that the expected benefit of the power plant increases by 16.4% more than the design benefit, 34.5% more than the actual benefit. The effect of this method is very remarkable, and it can provide reference for the built reservoirs.