电力系统谐波测量及抑制方法研究

发布时间：2018-05-06 23:27

本文选题：谐波 + 滤波器　；参考：《天津大学》2014年硕士论文

【摘要】：近些年我国经济迅猛发展,其中电能无论在我们日常生活中还是在生产工作中都扮演着越来越重要的角色。尤其在生产企业中,电能几乎是所有动力的来源,是生产中最基本的要素之一。那么电能质量的好坏直接关乎设备能否平稳高效运行以及设备的使用年限,从另一角度讲,好的电能质量能保证生产持续高效运行,创造更多的经济价值,节省人力成本。然而在天津渤化中河化工有限公司丁二酸车间,为了改善电能质量投入的电容补偿装置,由于谐波的存在,屡次发生事故,生产多次被打断,设备损坏,造成很大的经济损失。所以用最经济、最高效的方法将问题解决,防止类似事故的发生具有重要的现实意义。本文首先介绍了电力系统中谐波的基本知识、课题研究的背景及意义、国内外发展的现状,然后结合天津渤化中河化工有限公司的实际案例,对该公司丁二酸车间内的3组整流装置分组、分别进行测试。对测试数据进行整理并进行分析,显示11、13、23和25次谐波的畸变严重超标。重点采用第一种单调谐滤波器对谐波进行抑制设计,给出滤波器的组成,结合实际工况计算出各元件参数。仿真部分采用Simulink6.0建立单调谐滤波器的系统仿真模型,并对仿真结果进行分析。由于生产需要,采用第二种有源滤波器的方式进行滤波,对有源滤波器进行选型并安装进行测试。设计仿真结果分析,单调谐滤波器对谐波滤除有十分明显的效果。而且通过有源滤波器的实际安装,滤除谐波后,此类事故再也没发生过,电能质量明显改善。因此本文提出的问题解决方案及设计具有一定的理论意义和使用价值。
[Abstract]:In recent years, with the rapid development of our economy, electric energy plays a more and more important role in our daily life and production. Especially in the production enterprises, electric energy is the source of almost all power, is one of the most basic elements in production. The quality of power quality is directly related to the smooth and efficient operation of the equipment and the service life of the equipment. From another point of view, good power quality can ensure the continuous and efficient operation of production, create more economic value, and save the cost of manpower. However, in the succinic acid workshop of Tianjin Bohuazhonghe Chemical Co., Ltd., in order to improve the capacitive compensation device for power quality input, because of the existence of harmonics, frequent accidents occurred, the production was interrupted many times, the equipment was damaged, resulting in great economic losses. Therefore, using the most economical and efficient method to solve the problem and prevent the occurrence of similar accidents has important practical significance. This paper first introduces the basic knowledge of harmonics in power system, the background and significance of the research, the current situation of domestic and foreign development, and then combined with the actual case of Tianjin Bohua Zhonghe Chemical Co., Ltd. Three groups of rectifier devices in succinic acid workshop were tested. The test data are analyzed and analyzed. The results show that the distortion of the 11 ~ (13) ~ (23) and 25 ~ (th) harmonics exceeds the standard seriously. The first kind of single tuning filter is used to suppress harmonics. The composition of the filter is given and the parameters of each component are calculated according to the actual working conditions. In the simulation part, the system simulation model of single tuning filter is established by Simulink6.0, and the simulation results are analyzed. Because of the need of production, the second active filter is used to filter, and the type selection and installation of active filter are tested. The simulation results show that the single tunable filter has an obvious effect on harmonic filtering. After the harmonic wave is filtered out by the practical installation of the active power filter, this kind of accident has never happened again, and the power quality has been improved obviously. Therefore, the solution and design of the problem proposed in this paper have certain theoretical significance and practical value.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM935

【参考文献】