变电站仿真系统并行运算的研究

发布时间：2018-06-06 08:28

本文选题：变电站 + 仿真培训　；参考：《天津大学》2014年硕士论文

【摘要】：变电站仿真培训系统作为对运行人员与设备检修人员的培训工具，已经广泛应用于各级供电部门的变电站培训及各高校的变电站运行维护类课程当中。变电站培训仿真系统最大特点是其与真实变电站现场一致或高度相似的工作环境，能够反映出变电站各种运行状态，能根据培训需要设置各种故障，受训人员可根据需要操作二次设备，，以达到事故处理和倒闸操作等项目的培训要求。根据“尽量使仿真变电站与真实变电站一致，尽可能使用变电站真实设备”的原则，本文设计采用一次系统运用数字仿真、二次设备全部采用真实保护设备和自动装置的数字-物理混合型变电站仿真培训系统。具体工作如下： 1.提出了一次系统采用数字仿真，二次系统采用变电站真实设备的数字物理混合型变电站仿真培训系统的总体设计方案，并分析了系统中各部分的工作任务及工作原理。 2.系统中存在非线性元件变压器与避雷器等，本文研究了非线性元件线性化的基本原理。由于系统模型的数学模型为微分方程，本文讨论了微分方程差分化的基本方法。 3.研究了变压器、电力线路、电源、避雷器的数学仿真模型，并通过差分法建立各元件的差分模型及变电站一次系统的差分模型。论文运用贝瑞隆法的解耦性特点，将一次系统模型划分为供电端模型子系统，站内模型子系统、线路模型子系统和负荷模型子系统。 4.根据系统模型方程组特点，运用稀疏技术和无向图技术，基于最小度法和最大独立集法的思想，研究了一种运算量小且适合并行运算的消去节点安排法。
[Abstract]:Substation simulation training system as a training tool for operators and equipment maintenance personnel has been widely used in substation training at all levels of power supply departments and in the courses of substation operation and maintenance in colleges and universities. The biggest characteristic of substation training simulation system is that it has the same or highly similar working environment as the real substation, which can reflect all kinds of operation state of substation, and can set up all kinds of faults according to the need of training. Trainees can operate secondary equipment as needed to meet the training requirements of accident handling and switching operation. According to the principle of "keeping the simulated substation as consistent as possible with the real substation and using the real equipment of the substation as far as possible", this paper designs and uses the digital simulation system. The secondary equipment adopts the digital-physical hybrid substation simulation training system of real protection equipment and automatic device. The specific work is as follows: 1. This paper puts forward the overall design scheme of digital physical hybrid substation simulation training system which uses digital simulation in primary system and substation real equipment in secondary system, and analyzes the working task and working principle of each part of the system. 2. There are nonlinear element transformers and arresters in the system. The basic principle of linearization of nonlinear elements is studied in this paper. Since the mathematical model of the system model is a differential equation, this paper discusses the basic method of differential differentiation. 3. The mathematical simulation model of transformer, power line, power supply and arrester is studied. The differential model of each component and the differential model of substation primary system are established by differential method. Based on the decoupling characteristic of Berelon method, the primary system model is divided into power supply model subsystem, in-station model subsystem, line model subsystem and load model subsystem. 4. According to the characteristics of the system model equations, using sparse technique and undirected graph technique, based on the idea of minimum degree method and maximum independent set method, this paper studies a node elimination arrangement method, which has less computation and is suitable for parallel operation.
【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】：TM63;TM743

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