基于虚拟仿真的电力系统暂态过程中的能量分析与计算  

Energy Analysis and Calculation in Power System Transient Process Based on Virtual Simulation

作　　者：田旭[1] 刘岩[1] 李亚龙 杨佳 TIAN Xu;LIU Yan;LI Yaong;YANG Jia(School of Mechanical Electronic and Information Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)机电与信息工程学院,北京100083

出　　处：《实验室研究与探索》2023年第5期137-142,共6页Research and Exploration In Laboratory

基　　金：中国矿业大学(北京)本科教育教学改革与研究项目(J21ZD11)。

摘　　要：使用RT-Lab虚拟仿真平台,建立单机-无穷大电网的电磁暂态仿真模型,研究电力系统暂态过程中加速能量、减速能量以及损耗能量的计算方法,编写相关程序。以单相接地、两相接地短路为例,计算加速、减速过程中的能量以及损耗能量,表明了暂态过程中的能量守恒。研究了强行励磁、快关汽门对电力系统暂态过程中加、减速能量的影响。建立虚拟仿真实验及提出能量计算方法有助于学生深刻地理解电力系统暂态过程中的能量守恒,更加准确地掌握等面积定则的使用方法。Using RT-Lab virtual simulation platform,this paper establishes an electromagnetic transient simulation model of single machine infinite bus power grid,studies the calculation methods of acceleration energy,deceleration energy and lost energy in the transient process of power system,and compiles the relevant programs.Taking single-phase grounding short circuit and two-phase grounding short circuit as examples,the energy in the process of acceleration and deceleration and the energy lost are calculated,the energy conservation in the transient process is verified more accurately,and the effects of forced excitation and fast closing steam valve on the acceleration energy and deceleration energy in the transient process of power system are studied.The virtual simulation experiment established in this paper and the energy calculation method proposed in this paper will help students more deeply understand the energy conservation problem in the transient process of power system and more accurately master the application method of equal area rule.

关 键 词：暂态稳定性 等面积定则 虚拟仿真 单相接地短路 

分 类 号：TM743[电气工程—电力系统及自动化]