| 引用本文: | 魏炜,倪颖婷,罗凤章,徐瑞凯,徐元孚.基于热网互联的电力系统灵活性调度模型[J].电力自动化设备,2017,37(6): |
| WEI Wei,NI Yingting,LUO Fengzhang,XU Ruikai,XU Yuanfu.Power system flexibility dispatch model based on thermal network interconnection[J].Electric Power Automation Equipment,2017,37(6): |
|
| 摘要: |
| 为解决冬季采暖期电力系统灵活性不足的问题，基于热网互联的应用背景，综合考虑热电联产机组的热-电运行特性、热力管网的互联特性和用户建筑物的蓄能特性，建立电力系统灵活性调度模型。该模型分别以谷荷时段的向下灵活性和峰荷时段的向上灵活性最大为优化目标，在多源互联热力管网的结构下，充分利用不同热电联产机组运行特性的差异，实现对热-电输出功率的合理分配。算例分析表明，在考虑热网互联和建筑物蓄能特性的情况下，所提模型可有效提高不同调度时段电力系统的灵活性。 |
| 关键词: 电力系统灵活性 热网互联 可再生能源 热电联产 调度 模型 |
| DOI：10.16081/j.issn.1006-6047.2017.06.022 |
| 分类号:TM761 |
| 基金项目:国家高技术研究发展计划(863计划)项目(2014AA-051901)；国家自然科学基金面上项目(51377116) |
|
| Power system flexibility dispatch model based on thermal network interconnection |
|
WEI Wei1, NI Yingting1, LUO Fengzhang1, XU Ruikai1, XU Yuanfu2
|
|
1.Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China;2.State Grid Tianjin Electric Power Company, Tianjin 300010, China
|
| Abstract: |
| Aiming at the insufficient power system flexibility of winter heating period, a power system flexibility dispatch model based on the interconnection of thermal networks is built, which comprehensively considers the operating characteristics of CHP(Combined Heat and Power) units, the interconnection characteristics of thermal networks and the energy storage characteristics of household buildings, takes the maximum downward flexibility of valley period and the maximum upward flexibility of peak period as its optimization objectives, and makes the best of the differences among different CHP units in operating characteristics to realize the rational allocation of thermal and electric powers under the structure of interconnected thermal networks of multiple thermal sources. Case analysis shows that, the proposed model effectively improves the flexibility of power system for different dispatch periods. |
| Key words: power system flexibility thermal network interconnection renewable energy resource combined heat and power dispatch models |
