﻿ 考虑发电保证率和破坏深度约束的水电站水库优化调度模型

# 考虑发电保证率和破坏深度约束的水电站水库优化调度模型Optimal Operation Model for Hydropower Reservoirs Considering Probability of Non-Failure and Failure Extent

Abstract: For the problem of power generation reliability, a stochastic dynamic programming model considering chance constraint of non-failure and extreme failure extent is proposed for hydropower reservoirs operation. An algorithm incorporating Lagrangian relaxation and penalty function is used to solve the model. The chance constraint is relaxed and the extreme fail constraint is addressed by penalty function, and a new benefit function is constructed. The Lagrangian multiplier and penalty coefficient are renewed on the basis of simulated operation results. The proposed method is used to the cascaded hydropower system of middle and lower Lancang River. Case study shows that the proposed method can meet the requirements of chance constraint of firm power and avoid severe failure, and the power generation benefit is kept also.

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