电–热–气综合能源系统多能流计算方法  

Multi-Energy Flow Calculation Method for Integrated Energy System Containing Electricity, Heat and Gas

作　　者：王英瑞 曾博 郭经 史佳琪 张建华 WANG Yingrui ZENG Bo GUO Jing SHI Jiaqi ZHANG Jianhua(State Key Laboratory of Alternative Electrical Power System With Renewable Energy Sources （North China Electric Power University）, Changping District, Beijing 102206, China)

机构地区：[1]新能源电力系统国家重点实验室(华北电力大学),北京市昌平区102206

出　　处：《电网技术》2016年第10期2942-2950,共9页Power System Technology

基　　金：国家自然科学基金(51277067);中央高校基本科研业务费专项资金(2015QN01)

摘　　要：为缓解环境污染,提高终端用能效率,综合能源系统(integrated energy system,IES)已成为我国能源结构调整的重要方向。在IES框架下,传统以电力系统为对象的潮流计算方法将难以满足对互相耦合的能量流分析的需求。提出了一种适用于含电、热、气的IES的扩展Newton-Raphson多能流计算方法。首先,分别建立了IES中电力、热力和天然气网络的数学模型;针对现有方法对含压缩机的天然气网络建模的繁冗性问题,计及不同的控制方式,提出了改进的实用化处理方法;在此基础上,进一步构建了IES多能流计算模型,考虑IES中电力系统并网和孤岛2种运行方式,推导并得出了反映多能源耦合关系的雅可比矩阵。算例验证了该方法在不同运行场景下对多能流进行计算和互动特性分析的有效性。In order to alleviate environmental pollution and improve utilization efficiency of end-used energy, integrated energy system（IES） becomes an important direction of energy structure adjustment in China. Under IES framework, traditional power flow calculation method, with power system as object, is difficult to meet requirements of analyzing coupled energy flow. This paper proposes an extended Newton-Raphson multi-energy flow calculation method, suitable for IES containing electricity, heat and gas. Firstly, models of electricity, heat and natural gas networks in IES are established. In view of complexity of traditional method to solve gas network including compressors, an improved practical method is put forward based on different control modes. On this basis, IES multi-energy flow model is built and Jacobi matrix reflecting multi-energy coupling relationship is derived considering grid-connected and island modes of power system in IES. Validity of the proposed method in multi-energy flow calculation and analysis of interacting characteristics is verified with numerical cases.

关 键 词：综合能源系统 热电联产 多能流 扩展牛顿?拉夫逊法 压缩机 

分 类 号：TM72[电气工程—电力系统及自动化]