计及网络安全约束和多能协同交互的多园区综合能源系统分散协调调度  

Decentralized coordinated dispatch of multi-community integrated energy system considering network security constraints and multi-energy collaborative interaction

作　　者：李鹏[1] 陈博[1] 王子轩 周逢权[2] 吴迪凡 刘洋[2] LI Peng;CHEN Bo;WANG Zixuan;ZHOU Fengquan;WU Difan;LIU Yang(School of Electrical and Electronic Engineering,North China Electric Power University,Baoding 071003,China;XJ Group Corporation,Xuchang 461000,China)

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003 [2]许继集团有限公司,河南许昌461000

出　　处：《电力自动化设备》2020年第12期15-22,共8页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51577068);国家电网公司科技项目(5204BB19000N)。

摘　　要：多园区接入区域配电网与配气网构成多园区综合能源系统(MCIES),可有效提高其经济效益。针对配电网、配气网和不同园区等多利益主体,提出一种计及网络安全约束和多能协同交互的MCIES分散协调调度双层模型。区域调度层为多主体调度层,配电网和配气网在满足网络安全约束的前提下向园区运营商供能,三者分别以各自利益最大化为目标,协调配网-园区联络线功率;局域调度层为园区利益分配层,各园区互联以实现彼此间电能和天然气支撑,并基于区域层决策得到的配网-园区交互能量,分别以各自经济最优为目标参与利益分配,优化内部设备出力计划,协调园区间多能交互功率。采用双层目标级联分析法解耦协调变量,分别将各层优化调度主问题构建为上下两级优化调度子问题,进而对调度子问题独立建模、协调求解。天津某地MCIES算例分析表明,所提方法兼顾了网络运行安全性和不同主体利益诉求,并通过发挥园区间多能协同交互优势,实现了MCIES的安全经济优化运行。MCIES(Multi-Community Integrated Energy System)with multiple communities connected to the regional EPS(Electric Power distribution System)and NGS(Natural Gas distribution System)can effectively improve the economic benefits.For multi-stakeholders such as EPS,NGS and different communities,a decentralized coordinated dispatch model with two layers of MCIES considering network security constraints and multi-energy collaborative interaction is proposed.Specifically,the regional dispatch layer is a multistakeholder dispatch layer,in which both EPS and NGS provide energy supply to the community operator in the condition that all network security constraints are satisfied.At the same time,the three stakeholders aim at maximizing their respective interests and coordinate the network-community tie-line power.The local dispatch layer is a benefit allocation layer of communities,where communities are interconnected to enable additional support of electricity and natural gas with each other.Based on the network-community interactive energy determined by the regional layer,each park participates in the benefit allocation with their own economic optimal goals by optimizing the internal equipment output and coordinating the multi-energy interactive power among communities.The two-layer analytical target cascading is developed to decouple the coordination variables.As a result,the master problem of optimal dispatch in each layer is reformulated as two-layer optimal dispatch sub-problems,which can be modeled independently and solved collaboratively.Numerical results on a realistic MCIES in Tianjin show that the proposed method realizes the safe and economical operation of MCIES by considering the network security and the interests of different stakeholders,and taking advantage of the multi-energy collaborative interaction among communities.

关 键 词：综合能源系统 网络安全约束 能量交互 分散协调调度 双层目标级联分析法 

分 类 号：TM73[电气工程—电力系统及自动化] TK01[动力工程及工程热物理]