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1、山东大学学士学位论文1目录目录目录.1摘要.2Abstract.3第一章绪论.41.1、引言.41.2、发电机并网概述及准同期装置的发展 .51.3、准同期并列的基本原理.61.4、本文的主要内容.7第二章准同期过程中各量的测量方法.92.1、频率的测量方法.92.2、相位差测量方法.102.3、电压的测量方法.11第三章 基于微处理器的准同期装置的设计.123.1、准同期装置的介绍.123.2、总体设计的考虑.123.3、准同期装置的硬件设计.133.3.1、直流稳压电源.143.3.2、复位电路.153.3.3、电压测量电路.153.3.4、频率和相位差测量电路.163.3.5、单片机电路
2、.173.3.6、准同期装置的软件设计.19第四章 总结和展望.21致谢.22参考文献.23附录.24山东大学学士学位论文2摘要摘要基于微处理器的准同期装置是一种以微处理器为基础的并网控制器装置，能够精确预测合闸相角，迅速并网成功。准同期装置作为一种常用的自动装置在电力系统并列操作中起着重要的作用。随着电力系统容量以及发电机单机容量的不断增大、系统结构的日益复杂,从而对供电的安全可靠性及电能的质量品质提出了更高的要求,因此高性能的自动化装置在电力系统中得到广泛应用。微机自动准同期装置作为电力系统中一个非常重要的自动化装置,对提高系统的稳定、可靠运行及线路负荷的合理、经济分配起着十分重要的作用,
3、当发生不符合同期条件的同期操作时将会带来极其严重的后果,可能引起发电机的损伤甚至系统瓦解。本文基于准同期并列过程中使用安全可靠、操作快捷方便的准同期装置的需要,研制开发了基于 89C52 微控制器的微机自动准同期装置。本课题通过对准同期条件的理论分析,结合工程实际应用的需要,设计完成了 89C52 为控制器的微机自动准同期装置硬件平台。控制器主要完成并列条件的检测与判断。在此硬件基础之上,完成了相应的软件设计,实现了微机自动准同期装置的各项功能。该装置具有性能可靠、并网速度快、准确性高、误差小等特点。关键词关键词 电力系统电力系统 单片机单片机 并网控制并网控制山东大学学士学位论文3Abstr
4、actMicroprocessor-based quasi-synchronization device is a microprocessor-based and network controller device that can accurately predict the closing phase, the rapid and successful network. Synchronizing device used as an automatic device to operate in parallel in the power system plays an important
5、 role. With the growing of the power system and unit capacity, the configuration of system becoming more complex, so high-powered automatic device used abroad in power system in order to guarentee the safe of system and the quality of the electric power. As one of the important automatic device in s
6、ystem, microprocessor-based automatic quasi-synchronization device takes main role in safe operation of system and the load distributed more reasonable and more economic. Paralleling in the incorrect point will bring serious system accident or even lead to the system breaking down.This parallel proc
7、ess based on the same period use of safe and reliable operation of fast and convenient device needs the same period, developed a microcomputer based on 89C52 microcontroller automatically synchronizing device. Firstly, this paper analyse the theory of quasi-synchronization, combined with the actual
8、project application, accomplished the hardware design of the quasi-synchronization device, which controller based on 89C52. The controller function including measure and judge the parallel condition,。accomplished the software design in order to achieve all kings of function of the microprocessor-based automatic quasi-synchronization device based on the hardware. The device has the characteristic of reliable performance and speed
