深度抽象继电保护理论的仿真实验探索
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摘要
在电力系统继电保护中,相间短路的方向性电流保护是典型的理论抽象、实现复杂、不易理解的教学难点,现有教材又大多缺少关于从相电压、相电流实现方案到90°接线方式之间的过渡性内容,实验过程中,学生更是无法参与到功率方向继电器构建这个至关重要的环节中去,因而,理解该理论精髓存在着天然障碍.尝试将MATLAB/Simulink系统仿真引入电力系统相间短路的方向性电流保护实验,展示了一个完整的元件选择、参数设置、模型构建、实验方案设计过程,有效弥补了实验装置的不足,增强了学生实践能力拓展的渠道.因此,仿真虚拟实验是一种深度抽象继电保护理论学习的有效模式,应该受到重视.
In the relay protection of power system,directional current protection of inter-phase short circuit is a typical teaching difficulty famous for its abstract theory,complex realization and understanding obstacles.Most of the existing textbooks lack the transitional content from phase voltage and phase current realization scheme to 90°connection mode.In the course of experiment,students are unable to participate in the construction of power directional relay.Thus,there are natural obstacles in understanding the essence of the theory.This paper attempts to introduce the simulation of MATLAB/Simulink system into the directional current protection experiment of inter-phase short circuit of power system.It shows a complete process of component selection,parameter setting,model construction and experiment scheme design,which effectively compensates for the shortcomings of the experimental device and enhances the channel of students' practical ability development.Therefore,simulation virtual experiment is an effective model for deep abstract relay protection theory learning.
In the relay protection of power system,directional current protection of inter-phase short circuit is a typical teaching difficulty famous for its abstract theory,complex realization and understanding obstacles.Most of the existing textbooks lack the transitional content from phase voltage and phase current realization scheme to 90°connection mode.In the course of experiment,students are unable to participate in the construction of power directional relay.Thus,there are natural obstacles in understanding the essence of the theory.This paper attempts to introduce the simulation of MATLAB/Simulink system into the directional current protection experiment of inter-phase short circuit of power system.It shows a complete process of component selection,parameter setting,model construction and experiment scheme design,which effectively compensates for the shortcomings of the experimental device and enhances the channel of students' practical ability development.Therefore,simulation virtual experiment is an effective model for deep abstract relay protection theory learning.
引文
[1]王琦,张波涛,刘追.继电保护半实物仿真教学系统设计[J].实验室研究与探索,2016,35(10):99-102.
[2]张敬南,张镠钟.实验教学中虚拟仿真技术应用的研究[J].实验技术与管理,2013,30(12):101-104.
[3]宛西原,王功孝.计算机仿真技术实验课程教学改革研究[J].自动化与仪器仪表,2015(10):103-105.
[4]张玉叶.Matlab语言课程教学中若干问题探讨[J].实验室研究与探索,2018,37(3):176-179.
[5]牛天林,樊波,张强,等.Matlab/Simulink仿真在电力电子技术教学中应用[J].实验室研究与探索,2015,34(2):84-87.
[6]连丽红.基于Matlab的信号与系统实验平台开发[J].实验技术与管理,2016,33(6):150-153.
[7]王关平,孙伟,高晓阳,等.基于MATLAB/Simulink的电力系统潮流分布仿真实验设计[J].兰州文理学院学报:自然科学版,2018,32(4):77-82.
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[9]赵紫颖,童小鹏,师秀凤.基于MATLAB的电力系统潮流计算设计——用Simulink仿真进行潮流计算[J].价值工程,2016,35(21):185-187.
[10]郭琼.基于Matlab的Powergui性能在电力工程教学中的应用[J].电力系统及其自动化学报,2004,16(2):80-84.
[11]李斌,赖勇,杨红静.电力系统继电保护及自动装置[M].北京:中国水利水电出版社,2015.
[12]王松廷.电力系统继电保护原理与应用[M].北京:中国电力出版社,2013.
[2]张敬南,张镠钟.实验教学中虚拟仿真技术应用的研究[J].实验技术与管理,2013,30(12):101-104.
[3]宛西原,王功孝.计算机仿真技术实验课程教学改革研究[J].自动化与仪器仪表,2015(10):103-105.
[4]张玉叶.Matlab语言课程教学中若干问题探讨[J].实验室研究与探索,2018,37(3):176-179.
[5]牛天林,樊波,张强,等.Matlab/Simulink仿真在电力电子技术教学中应用[J].实验室研究与探索,2015,34(2):84-87.
[6]连丽红.基于Matlab的信号与系统实验平台开发[J].实验技术与管理,2016,33(6):150-153.
[7]王关平,孙伟,高晓阳,等.基于MATLAB/Simulink的电力系统潮流分布仿真实验设计[J].兰州文理学院学报:自然科学版,2018,32(4):77-82.
[8]于群,曹娜.MATLAB/Simulink电力系统建模与仿真[M].北京:机械工业出版社,2011.
[9]赵紫颖,童小鹏,师秀凤.基于MATLAB的电力系统潮流计算设计——用Simulink仿真进行潮流计算[J].价值工程,2016,35(21):185-187.
[10]郭琼.基于Matlab的Powergui性能在电力工程教学中的应用[J].电力系统及其自动化学报,2004,16(2):80-84.
[11]李斌,赖勇,杨红静.电力系统继电保护及自动装置[M].北京:中国水利水电出版社,2015.
[12]王松廷.电力系统继电保护原理与应用[M].北京:中国电力出版社,2013.