多阶段电网规划模型与混合优化方法

Multistage Grid Planning Models and Hybrid Optimization Algorithms

提出以满足系统可靠性准则为约束条件和系统发展过程中各阶段建设费用为优化目标的电网规划模型,运用混合优化方法求解此优化规划模型,可有效提高收敛性能和稳定性。运用递延枚举优化进行局部深度搜索,即可得到方案的局部最优解。运用分解递延枚举和隐含递延枚举技术加快递延枚举过程。通过算例验证了规划模型及其优化方法的实用性和有效性。

The grid planning models are presented to meet power system reliability criteria as constraints and to reduce the stages construction costs as optimization goal.To solve the models,hybrid optimization methods are developed so that the convergence and stability of the algorithms are improved effectively.Deferred enumeration optimization is used for local depth searches,and then local optimal solutions are obtained.Decomposition and implicit deferred enumeration technology is used to accelerate the enumerating process.The practicability and effectiveness of the planning models and relevant optimization methods are verified with calculation cases.