# 系统备用均衡的发电机组检修模型与算法Generator Maintenance Scheduling Model and Algorithm for Balanced System Reserve

Abstract:
Balanced system reserve capacity or reserve rate is an important principle of generators maintenance scheduling. This paper proposes a generators maintenance scheduling model which maximizes the lower bound of system reserve rates, in order to achieve balanced system reserve rates. This model avoids the computational difficulties from which traditional approaches suffer because of the quadratic objective function of minimum variance, and greatly improves the computation speed and robustness of optimization. Meanwhile, this paper proposes a heuristic approach which finds the active constraints and modifies them in next iteration, so as to continuously optimizes the lower bound of system reserve rates at remaining periods, thus expanding the optimization space compared to traditional approaches and reaching better optimality regarding balance of reserve rates. On the one hand, this paper establishes a rigorous mathematical model to optimize generators maintenance scheduling model, thus guarantees the global optimality; on the other hand, heuristic approach is employed to improve computational efficiency. Case studies show the optimality and efficiency of the proposed model and algorithm, indicating that the method can be effectively applied to industrial practices.

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