区域综合能源系统的建模仿真与潮流分析

发布时间：2018-03-09 07:09

本文选题：区域综合能源(IES)　切入点：微型燃气轮机　出处：《西安理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：传统的能源系统是相互独立,缺少互动的分散式运行管理方式,这样势必造成能量的浪费以及能源结构不够优化。将独立运行的电、气、热系统,以及分布式能源系统在某个区域范围内进行综合管理,构建区域综合能源系统,是实现冷、热、电、气、太阳能等多能源品种的协调互补和集成优化,提升能源利用率,优化能源结构的有效方式。本文以综合能源系统为研究对象,围绕综合能源系统中多能源网络之间的耦合特性和交互行为,进行了建模、仿真与潮流分析研究。本文主要内容如下:1)研究了综合能源系统多能源架构下,分布式微电网系统微源、其他设备级能源环节、单元级能源系统的基础建模,对综合能源系统不同设备和系统的运行特性进行了分析。2)进行了综合能源系统的互动特性与建模仿真研究。为反映多能源系统的耦合特性,设置了两种耦合模式,一种是以微型燃气轮机作为耦合设备,另一种是以空调系统与燃气锅炉作为耦合设备。针对这两种耦合模式建立了综合电力网络和天然气管网约束的微型燃气轮机仿真模型,以及体现空调与燃气锅炉耦合方式的仿真模型。利用算例分析得到微型燃气轮机电气参数与天然气管网系统之间的相互影响特性。3)进行了区域综合能源系统潮流分析。分析了区域综合能源系统电、气、热多能流特点,根据电力网络、天然气网络的特点进行了综合能源系统网络潮流建模,并构造了能源集线器模型。针对不同运行模式下,各设备的耦合特性对不同能源子网络之间的相互影响和交互作用,研究了综合能源潮流模型的求解问题,实现了综合能源系统多能流的统一求解。4)以某开发区综合能源系统为研究算例,从独立系统约束条件以及边界综合约束条件共同分析了不同运行模式下系统的运行状态,对不满足约束条件的运行状态提出了调整策略,保证了系统的安全稳定运行,验证了所提潮流模型以及计算算法的有效性。
[Abstract]:Traditional energy systems are independent of each other and lack of interactive decentralized operation management, which is bound to lead to waste of energy and inadequate energy structure. And the distributed energy system is integrated management in a certain region, and the construction of regional integrated energy system is to realize the coordination and optimization of many kinds of energy, such as cold, heat, electricity, gas, solar energy and so on, so as to improve the efficiency of energy utilization. This paper takes the integrated energy system as the research object, and focuses on the coupling characteristics and interaction behavior of the multi-energy network in the integrated energy system. The main contents of this paper are as follows: 1) the basic modeling of distributed microgrid system microsource, other equipment level energy link and unit level energy system under multi-energy architecture of integrated energy system is studied. This paper analyzes the operation characteristics of different equipments and systems of integrated energy system. 2) the interactive characteristics and modeling and simulation of integrated energy system are studied. In order to reflect the coupling characteristics of multi-energy system, two kinds of coupling modes are set up. One is the micro gas turbine as the coupling equipment, the other is the air conditioning system and the gas boiler as the coupling equipment. The simulation model of the micro gas turbine with the constraints of the power network and the natural gas pipe network is established for these two coupling modes. The simulation model of the coupling mode between air conditioning and gas boiler is presented. The interaction characteristics between the electrical parameters of micro gas turbine and the natural gas pipe network system are obtained by example analysis. 3) the power flow of regional integrated energy system is carried out. Analyzing the electricity of regional integrated energy system, According to the characteristics of power network and natural gas network, the integrated energy system network power flow model is built, and the energy hub model is constructed. The interaction and interaction between different energy subnetworks due to the coupling characteristics of each equipment are studied, and the solution of the integrated energy flow model is studied. The unified solution of multi-energy flow of integrated energy system is realized. 4) taking an integrated energy system of a development area as an example, the paper analyzes the operating state of the system under different operation modes from the independent system constraints and boundary synthesis constraints. In order to ensure the safe and stable operation of the system, an adjustment strategy is proposed for the running state which does not meet the constraint conditions, and the validity of the proposed power flow model and the algorithm is verified.
【学位授予单位】：西安理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM744;TK01

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