农村配电网无功补偿控制系统研究

发布时间：2018-04-19 21:44

  本文选题：农网 + 无功补偿　； 参考：《沈阳农业大学》2017年硕士论文

【摘要】：新农村建设作为我国一项长久重要发展战略,目的是要让农村整体环境得到有效彻底改善。而电力事业作为战略部署中的一项重大领域,始终承担着关键角色,直接影响农村生产生活质量。随着建设步伐的不断迈进,人们的生活水平更高也更加现代化,伴随而来的就是用电量的急剧增加,这就导致农网电网系统中负载增多,供电负担越来越大,电能质量逐渐下降。因此,在电力系统中如何增强用电稳定性,提高电能利用率就逐渐成为了一项重要的研究领域。本文的主要思想是采用无功补偿技术,通过设计一种动态补偿控制系统来实现对农村电力系统的提质增效。首先,通过大量阅读参考文献详细了解了农村配电网无功补偿技术和补偿装置的发展现状,对现有研究成果进行了综合比较,产生了一种基于混合补偿装置的设计想法。其次,从农村配电网的角度详细介绍了无功补偿技术的基本理论,为接下来的研究分析提供理论基础。随后,本文详细阐述了 TSC和SVG两种装置的相关理论知识,并结合各自优点设计了一种采用并联结构的动态混合无功补偿控制系统,从运行特性角度证明了方案的可行性。同时,提出了混合无功补偿系统的控制策略,并且考虑到瞬时无功功率理论对无功检测的关键性作用,采用一种适用于电网畸变情况下的无功电流检测算法(d-q运算法),提高了无功数据检测的速度和准确性。最后,利用MATLAB/SIMULINK技术搭建设计方案的仿真模型,对其控制策略和无功电流检测方法进行结果分析,通过在阻感负载和存在谐波两种环境下的模拟仿真,证明了该系统的理论研究结果和补偿效果,并在此基础上对混合无功补偿控制系统进行了软硬件的设计。
[Abstract]:As a long-term and important development strategy in China, new rural construction aims to improve the overall rural environment effectively and thoroughly. As an important field in strategic deployment, electric power industry always plays a key role and directly affects the quality of production and life in rural areas. With the continuous progress of construction, people's living standards are higher and more modern, accompanied by a sharp increase in electricity consumption, which leads to the increase in the load in the rural power grid system, the power supply burden is increasing. The quality of electricity is declining gradually. Therefore, how to enhance the power stability and improve the power utilization rate in power system has gradually become an important research field. The main idea of this paper is to design a dynamic compensation control system to improve the quality and efficiency of rural power system by using reactive power compensation technology. Firstly, the development of reactive power compensation technology and compensator in rural distribution network is studied in detail by reading a large number of references, and the existing research results are compared synthetically, and a design idea based on hybrid compensation device is presented. Secondly, the basic theory of reactive power compensation technology is introduced in detail from the point of view of rural distribution network, which provides the theoretical basis for the following research and analysis. Then, this paper describes the theoretical knowledge of TSC and SVG in detail, and designs a dynamic hybrid reactive power compensation control system with parallel structure combined with their respective advantages. The feasibility of the scheme is proved from the point of view of operation characteristics. At the same time, the control strategy of hybrid reactive power compensation system is proposed, and the key role of instantaneous reactive power theory in reactive power detection is considered. A reactive current detection algorithm based on d-q algorithm is proposed to improve the speed and accuracy of reactive power data detection. Finally, the simulation model of the design scheme is built by using MATLAB/SIMULINK technology, and the results of the control strategy and reactive current detection method are analyzed, and the simulation results are given under the environment of resistive load and harmonic. The theoretical research results and compensation effect of the system are proved, and the hardware and software of the hybrid reactive power compensation control system are designed.
【学位授予单位】：沈阳农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM727.1;TM761.12
，

本文编号：1774846