继电保护基础研究及神经网络技术的仿真

1、. . 装订线. . . 山东农业大学毕 业 论 文继电保护基础研究及神经网络技术的仿真院 部机械与电子工程学院专业班级电气3班届次2015届学生姓名高滢学号20110700 指导老师李有安 副教授 二一五年六月六日目 录摘要IABSTRACTII引言11 继电保护的基本概述21.1 继电保护的基本原理21.2 继电保护的基本组成及要求21.2.1 继电保护装置的组成21.2.2 继电保护的基本要求21.3 继电保护中变压器保护原理31.3.1 瓦斯保护31.3.2 差动保护41.3.3 过电流保护51.3.4 过负荷保护52 微机保护的简介52.1 微机保护的发展概况52.2 微机保护的基本原理62.3 微机保护的基本组成62.3.1 微机保护的硬件组成62.3.2 微机保护的软件组成72.3.3 微机保护干扰的影响及抗干扰措施82.4 微机继电保护的特点92.5 继电保护技术的发展方向103 微机保护的人工智能化技术103.1 人工智能化的含义103.2 人工智能化发展现状104 智能化发展中的人工神经网络技术114.1 人工神经网络基本概述114.2 人工神经网络技术的应用114

2、.2.1 应用于故障诊断114.2.2 应用于继电保护124.3 MATLAB实现人工神经网络预测124.3.1 MATLAB的简介124.3.2 MATLAB软件的主要优点124.3.3 MATLAB中BP神经网络仿真135 结论18参考文献19致 谢21iiiContentsAbstract.IIIntroduction.11 Protection of basic overview21.1 The basic principle of protection of21.2 Protection of basic components and requirements21.2.1 Composition protection device21.2.2 The basic requirements for protection of21.3 Transformer Protection Principle31.3.1 Gas protection31.3.2 Differential protection41.3.3 Overcurrent protection51.3.4 Overl

3、oad protection52 Microcomputer Protection Profile52.1 Overview of the development of computer protection52.2 The basic principle of Microcomputer Protection6 2.3 The basic components of computer protection6 2.3.1 Computer hardware protection6 2.3.2 Computer Protection Software Composition7 2.3.3 Computer Protection disturbances and anti-jamming measures82.4 Features microprocessor relay protection9 2.5 Relay technology developmentdirection.103 Artificial intelligence computer protection technolo

4、gy103.1 Meaning artificial intelligence103.2 Artificial Intelligence Development Status104 The development of intelligent Artificial Neural Networks114.1 A basic overview of artificial neural network114.2 Application of Artificial Neural Network Technology114.2.1 Fault diagnosis114.2.2 It applies to protection124.3 MATLAB realization of artificial neural network forecast124.3.1 MATLAB Introduction124.3.2 The main advantage of MATLAB software124.3.3 BP neural network simulation in MATLAB135 concl

5、usion18References19Acknowledgement21继电保护基础研究及神经网络技术的仿真高滢 (山东农业大学 机械与电子工程学院 泰安 271018) 摘要：众所周知，随着电力系统的发展和对安全运行要求的提高，常规的电保护原理和故障诊断技术已经渐渐不能适应断发展的系统需求。现在继电保护越来越受到重视，并已经有了较广泛的研究。电力系统运行方式和短路类型的实际情况而改变，使保护装置能更灵敏并且更快地切除故障，性能也得到显著提高。因此，为了保证电力系统安全稳定运行，必须安装质量技术优良的继电保护装置，应用先进的人工智能化技术。本文一共5部分，1说明了继电保护的基本概况及基本原理，并分析了继电保护各种变压器保护的基本原理；2详细介绍了微机保护的发展概况、特点及组成；3简单介绍了人工智能化技术，并以神经网络技术做为详细介绍；4也提出了在微机保护中神经网络技术，并用MATLAB软件中的BP算法模拟仿真；5本文结论。在信息化时代的大背景下，技术的不断发展，不但推动着社会的进步，而且提高着人类的生活水平。并提出对未来科技发展的展望。 关键词：继电保护 人工智能 人工神经网络技术Si

6、mulation protection of basic research and Neural Network TechnologyYing Gao(Mechanical & Electrical Engineering College of Shandong Agricultural University, Taian, Shandong 271018)Abstract As we all know, with the development of electric power system and to improve the safe operation requirement, the conventional electric protection principle and fault diagnosis technology has been gradually can not adapt to the development of the system requirements. Adaptive, therefore, more attention paid to

7、the protection, and has a wide range of research. Adaptive distance protection fixed value with the system operation mode and the actual situation of short circuit type and change, make protection device can be more sensitive and more quickly removed fault, performance have been significantly improved. In order to guarantee the safe and stable operation of power system, it is necessary to install the relay protection device with excellent quality and technology, the application of advanced artif

8、icial intelligence technology.In this paper, a total of five parts, 1 illustrates the basic overview of protection and its basic principles, and analyzes the basic principles of the various transformer protection relay; 2. Details of the development of microprocessor-based protection profiles, characteristics and composition; 3 brief introduction artificial intelligence techniques and neural network technology as a detailed description; 4 also the neural network in digital protection technology, and simulation with BP algorithm MATLAB simulation software; 5 conclusions of this paper. In the context of the information age, technology continues to develop, not only to promote social progress, and improve human living. And put forward the prospects for future technology development.K

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