微网能量管理与容量优化设计方法研究

发布时间：2018-02-03 07:52

本文关键词： 微网能量管理优化设计协调控制优化调度　出处：《天津大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着全球能源危机和温室效应的加剧,微网技术受到越来越多的关注。微网能量管理和优化设计是微网研究不可或缺的两大课题,本文以这两大课题作为核心研究内容,主要研究内容及所做工作包括以下几个方面。1)研究了微网中典型分布式电源、储能单元、典型冷/热供给设备等各种元件的准稳态仿真模型,以及负荷和可再生资源数据的随机生成方法。2)针对并网的CCHP型微网和独立型微网,本文提出了不同能量管理方法。针对CCHP型微网系统,本文提出了以日运行费用最小为优化目标的优化调度模型,模型以微网系统电、热、冷功率的平衡和各设备的运行约束为约束条件,采用混合整数线性规划算法进行优化计算。针对包含不同设备的独立型微网,本文提出了不同的协调控制策略,策略中允许储能单元和柴油发电机分别做主电源,在保证系统稳定的情况下,实现可再生能源利用的最大化。3)针对CCHP型微网系统,本文建立了基于双层的微网多目标优化设计模型。该多目标模型从经济性、环保性两方面综合考虑了微网投资规划问题。模型外层用于实现微网系统的容量优化,内层用于实现微网系统的动态经济调度。4)针对独立型微网系统,本文建立了确定性优化设计模型和计及不确定性的随机机会约束规划模型。在两种优化模型中综合考虑了微网经济性、供电可靠性、环保性等多种经济技术指标。优化过程中,选取设备类型和装机容量同时进行优化设计。其中,随机机会约束规划模型中,选取供电可靠性作为机会规划的约束。
[Abstract]:With the global energy crisis and the aggravation of Greenhouse Effect, more and more attention has been paid to microgrid technology. This paper takes these two topics as the core research content, the main research content and the work includes the following aspects. 1) the typical distributed power generation and energy storage unit in the microgrid are studied. The quasi-steady simulation model of various components such as typical cold / heat supply equipment and the random generation method of load and renewable resource data. 2) for grid-connected CCHP microgrids and independent microgrids. In this paper, different energy management methods are proposed. For CCHP microgrid system, this paper presents an optimal scheduling model with the minimum daily operating cost as the optimization objective. The model is based on the electricity and heat of the microgrid system. The balance of cold power and the operation constraints of each equipment are the constraints, and the mixed integer linear programming algorithm is used to optimize the calculation. Different coordinated control strategies are proposed for the independent microgrids with different equipments. In the strategy, the energy storage unit and diesel generator are allowed to be the main power supply separately. Under the condition of ensuring the stability of the system, the renewable energy utilization can be maximized. 3) for the CCHP microgrid system. In this paper, the multi-objective optimization design model of microgrid based on double-layer is established. The multi-objective model is based on economy. The model outer layer is used to realize the capacity optimization of the microgrid system, and the inner layer is used to realize the dynamic economic scheduling of the microgrid system. 4) for the independent microgrid system. In this paper, the deterministic optimization design model and the stochastic chance constrained programming model with uncertainty are established. In the two optimization models, the economy of microgrid and the reliability of power supply are considered synthetically. Environmental protection and other economic and technical indicators. In the process of optimization, select the type of equipment and installed capacity at the same time to optimize the design. Among them, in the stochastic opportunity constraint programming model. Power supply reliability is chosen as the constraint of opportunity programming.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM73

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