考虑P2G备用服务的电—气联合网络风电消纳及低碳效益分析  

The benefit on wind power accommodation and low carbon effects of integrated electricity and gas network considering reserve service of P2G facilities

作　　者：许志恒[1] 张勇军[1] 陈泽兴[1] XU Zhiheng;ZHANG Yongjun;CHEN Zexing(School of Electric Power,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学电力学院,广东广州510640

出　　处：《电力科学与技术学报》2020年第3期36-45,共10页Journal of Electric Power Science And Technology

基　　金：国家自然科学基金(51777077);广东省自然科学基金(2017A030313304)。

摘　　要：近几年来电转气技术的发展,促使电能和天然气实现能源的双向转换,增强了电—气联合网络的耦合,为解决传统电网风电消纳能力不足的问题提供了新的途径。该文充分考虑电网、天然气网的约束及电转气技术的能量转换关系,以系统运行总成本最小为目标函数,建立含电转气的电—气联合网络经济调度模型,并通过MATLAB编写内点法程序进行模型求解。采用修改的IEEE-39节点系统和比利时20节点天然气网组成的联合网络作为仿真系统。设置无电转气接入,以及电转气接入后有无考虑气网约束和电转气有无提供系统备用共5种场景,并考虑电转气的碳捕获能力,分析不同场景下风电的消纳情况和低碳效益。验证了通过引入电转气,提高联合网络风电消纳和低碳运行能力的可行性及有效性。In recent years,the development of P2G technique has succeed a bidirectional energy flow between electricity and natural gas.It also enhances the coupling between the power and gas systems.P2G technique is a new approach which can rise up wind power accommodation.Under this circumstance,the economic dispatch model is proposed with the consideration of the electric and gas network constraints and energy transform equation of P2G.Its objective function aims to minimize the system operation costs of integrated electricity-gas network embedded P2G.Besides,based on the interior point algorithm,Matlab simulation is included for this model.The test consists of an IEEE 39-bus electric network and a Belgian 20-bus gas network.Based on the proposed model,the wind power accommodation and low carbon effects is analyzed by considering the carbon captured by P2G under the given 5 scenarios.It is shown that the feasibility and availability is verified for the increasing wind power accommodation and low carbon effects in network with an embedded P2G.

关 键 词：电转气 旋转备用 风电消纳 低碳效益 

分 类 号：TM71[电气工程—电力系统及自动化]