新型特高压断路器磁力机构运行机理及其智能控制研究

项目名称： 新型特高压断路器磁力机构运行机理及其智能控制研究

项目编号： No.50807006

项目类型： 青年科学基金项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 董恩源

作者单位： 大连理工大学

项目金额： 22万元

中文摘要： 断路器的精确控制及选相操作要求操动机构具有很好的可控性和较小的动作分散性。传统的操动机构一般有泄漏、笨重以及连接构件多而故障率高的缺点，并且动作时的分散性较大，从而难于进行精确控制。近年来永磁机构的发展，为中低压领域的真空断路器设备的选相工作提供了有利条件。但其用于长行程及大操作功的高压断路器当中有一定困难。本项目提出一种可用于高压长行程断路器操作中的新型磁力驱动机构为研究背景，首先对新型机构的电磁系统进行数学建模，并对其进行特性分析，研究其实现大行程、高速度的动作机理；在此基础上，开发了基于VB调用Ansys和 matlab模块的磁力机构设计的人机交互界面，方便了非专业人员的设计应用。控制系统采用模糊控制来跟踪传统弹簧机构的成功操作特性曲线，实现了长行程断路器的智能操控。本研究与平顶山高压开关合作研发了40.5kV的长行程SF6断路器。对其结构设计、输出功测试、控制系统的智能化设计等进行了科研工作，结果表明新型磁力机构用于长行程高压断路器中的可行性，为其应用于更高等级的断路器的操控中给出指导依据。

中文关键词： 磁力操动机构;高压断路器;长行程;模糊控制

英文摘要： In order to achieve precise control and synchronous operation of circuit breakers, the actuators should have a good controllability and operation time scattering. Traditional actuators have many disadvantages such as leakage, ponderosity, high fault rate, and large time scattering, making it difficult to accurately control. In recent years, the development of permanent magnetic actuator(PMA) in the field of middle and low voltage, provides favorable conditions for the synchronous control of vacuum circuit breakers. However, there are still some difficulties in the application of high voltage circuit breakers with long stroke and large operating power. Thus, a new actuator(EMFA) is presented. In this project, the mathmatic model and characteristics of EMFA is given to analyse the principle of long stoke and high speed conditions. Then a man-machine interface is designed based on the method of VB Transfer of Matlab and Ansys, which is convenient for non-professionals. Fuzzy control system is used to track the operating curve of the traditional spring mechanism and then the intelligent control of long　stroke circuit breakers is realized. A long　stroke SF6 circuit breaker(40.5kV) is co-developed with PingGao Corporation. The design of the structure and control system, the test of output power and some other research are discussed in this study. The results show the feasibility of the new actuator, and provide guidance for application in higher voltage.

英文关键词： EMFA;HVCB;long stoke;fuzzy control