考虑环境因素的多能源系统交直流混合供能优化策略  

Optimization Strategy of Multi-energy Hybrid AC/DC Power System Considering Environmental Factors

作　　者：缪妙 李勇[1] 曹一家[1] 王姿雅[1] 邹尧 乔学博 

机构地区：[1]湖南大学电气与信息工程学院,湖南省长沙市410000

出　　处：《电力系统自动化》2018年第4期128-134,共7页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51520105011);湖南省科技重大专项(2015GK1002);湖湘青年英才项目(2015RS4022)~~

摘　　要：有效提高能源利用率、促进新能源消纳以及减少环境污染成本是当下发电用电企业十分关注的问题。提出并建立了一种多能源系统交直流混合并网供能优化模型,实现了电能的交直流柔性变换与多能源的综合利用。综合分析了能源局域网内交直流系统供电特性,结合供热系统供热特性、储能装置的充放特性以及煤炭的全生命周期,考虑功率平衡约束、各装置运行约束以及环境成本约束。利用GAMS优化软件求得调度周期内,传统交流并网模型和所搭建模型各系统的最佳出力及总运行成本,将两者的运行结果从供电供热等方面比较,验证了所述模型在减少运行成本、降低有害气体排放量以及削减煤耗量方面的优势。It＇s an immediate priority for many entrepreneurs to effectively improve the efficiency of energy utilization and elimination,as well as environmental protection.A multi-energy hybrid AC/DC power supply model is proposed,which realizes AC/DC flexible transformation of electrical energy and comprehensive utilization of multi-energy resources.A comprehensive analysis of the power supply characteristics of AC/DC power system is made,considering constraint of power balance,operation constraints of each appliance and constraint of environmental cost,combined with characteristics of heatsupply system and energy storage system.The optimal output and total operation cost of traditional communication network model are obtained by GAMS optimization software.The operation results of the two models are compared from power supply,heat supply and other aspects,which verifies the advantages of the proposed model in reducing operating costs,harmful gas emissions and coal consumption.

关 键 词：能源互联网 交直流混合网络 新能源 经济调度 环境保护 

分 类 号：TK01[动力工程及工程热物理]