基于云计算技术的配电网潮流计算研究

发布时间：2018-03-27 19:11

本文选题：云计算技术　切入点：模型融合　出处：《天津大学》2014年硕士论文

【摘要】：随着我国社会的不断发展,对电力的需求也在逐年增加。配电网作为电力系统最终与用户相连的重要组成部分,直接影响到用户用电的可靠性与电能质量。在配电网分析计算中,配电网潮流计算占有重要地位,实际生产过程中,潮流计算是对配电网进行优化规划和运行分析的基础。然而,配电系统具有节点多、规模大的特点,为了满足构建智能电网的需要,亟待开发一种解决大规模配电系统潮流分析的计算模式。随着云计算技术的高速发展,把云计算技术和电力系统分析相结合成为重要的研究方向。本文在研究了云计算技术和配电网典型元件模型的基础上,针对配电网的特点,将云计算技术应用于配电网潮流计算中,主要工作如下:深入介绍了云计算技术的原理、发展现状以及其独有的特点和优势,探究了云计算技术与其他计算模式之间的区别和联系。并针对配电网软硬件以及平台异构的特点,提出配电网异构模型融合,利用异构模型融合及云计算技术,搭建了配电网虚拟化模型中心,并在此基础上构建了配电网云平台。针对配电网的电气和拓扑特征与输电网不同的特点,结合配电网的典型元件模型以及云平台的特点,提出了基于云平台的配电网改进前推回代潮流算法。对配电网络结构进行拓扑分析并在此基础上进行网络划分,按照负荷相对均衡以及各计算节点间通讯损耗最小为原则将配电网分为I+R个子网;在前推及回代过程中,各子网间通过联络线分别发送和接收更新的电流及电压,以实现子网间的交互。基于C++语言和MPICH2消息传递接口编写了基于云平台的配电网改进前推回代潮流计算程序,利用33节点和292节点配网系统算例进行验证,并对算例结果进行分析,验证了该算法的有效性。
[Abstract]:With the development of our society, the demand for electric power is increasing year by year. Power flow calculation plays an important role in the distribution network analysis and calculation, and in the actual production process, the distribution network power flow calculation plays an important role in the actual production process. Power flow calculation is the basis of optimal planning and operation analysis of distribution network. However, distribution system has many nodes and large scale, in order to meet the needs of building smart grid. It is urgent to develop a computing model to solve the power flow analysis of large-scale distribution system. With the rapid development of cloud computing technology, Combining cloud computing technology with power system analysis is an important research direction. Based on the research of cloud computing technology and the typical component model of distribution network, this paper aims at the characteristics of distribution network. The main work of applying cloud computing technology to power flow calculation of distribution network is as follows: the principle of cloud computing technology, its development status and its unique characteristics and advantages are introduced in depth. This paper probes into the difference and relation between cloud computing technology and other computing modes. According to the characteristics of software and hardware of distribution network and platform heterogeneity, this paper puts forward the heterogeneous model fusion of distribution network, using heterogeneous model fusion and cloud computing technology. The distribution network virtualization model center is built and the cloud platform of distribution network is constructed on this basis. According to the characteristics of electrical and topological characteristics of distribution network and transmission network, combined with the typical component model of distribution network and the characteristics of cloud platform. This paper presents an improved forward push-back generation power flow algorithm for distribution network based on cloud platform. The topology of distribution network structure is analyzed and the network is partitioned on this basis. According to the principle of relative balance of load and minimum communication loss between nodes, the distribution network is divided into I / R subnet, and in the process of forward and back generation, each subnet transmits and receives the updated current and voltage respectively through the tie line. In order to realize the interaction between subnets, based on C language and MPICH2 message passing interface, the program of power flow calculation for distribution network improvement based on cloud platform is written, and the calculation examples of 33-node and 292-node distribution network system are used to verify it. An example is given to verify the effectiveness of the algorithm.
【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】：TM744

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