中文摘要：

建立输变电工程两阶段多目标决策评价模型,该模型包括立项和决策2个阶段,以及电网的安全性、经济性、环境友好性、适应性和协调性5个指标;提出双层多目标粒子群优化算法,求解模型的Pareto最优解,最后用综合评价方法选出最优实施方案。算例分析结果验证所提模型的正确性和有效性。

英文摘要：

A two-stage multi-subject decision-making model is built for the approval of power transmission and transformation projects and the determination of implementation scheme,which includes two stages （project approval, decision-making） and five indices （security, economy, environmental friendliness, adaptability, coordination）. A two-stage multi-objective particle swarm optimization algorithm is proposed to calculate the optimal Pareto solution of the model. A comprehensive evaluation method is adopted to select the optimal implantation scheme. Case study demonstrates the validity and effectiveness of the proposed model.