电力系统谐波抑制及无功补偿方法的研究

发布时间：2018-06-14 06:00

本文选题：电能质量 + 动态无功补偿　；参考：《辽宁工业大学》2014年硕士论文

【摘要】：随着电力电子技术在电力系统的广泛应用，工业化进程得到飞速发展，由此引发的电能质量问题也备受关注，尤其是阻感性负载的运行过程给电网带来的无功供应和谐波污染问题。为了使电能质量达到安全可靠、优质经济的要求，，深入研究无功补偿和谐波抑制技术具有深远的现实意义。首先，针对电力系统的谐波和无功现状，本文论证了谐波抑制和无功综合装置的可行性，并分别对谐波的治理措施和无功补偿原理进行了深入研究，为谐波抑制和无功综合装置的研究提供了理论依据。其次，对谐波和无功电流的综合检测方法的性能进行分析对比，重点研究了基于瞬时无功功率理论的ip-iq检测法，并在理论基础上对这种检测方法进行了仿真，验证了此方法的检测速度快、精准性高和实时性好等优势。最后，设计了以有源电力滤波器（APF）为核心与静止无功发生器（SVC）联合运行的综合装置，该装置由结构相同的多组晶闸管投切电容器TSC和呈H桥型连接的APF并联在电网上，通过TSC和APF的互补互利实现综合治理的目的。同时，将此综合装置应用于锦州拓新电力电子有限公司的实验之中，通过对实验数据的处理和分析，验证了此装置在提高系统动态性能及稳定性方面具有更可靠、更速动、更灵敏的优势。
[Abstract]:With the wide application of power electronic technology in power system, the process of industrialization has been developed rapidly, and the power quality problem caused by it has also attracted much attention. Especially the reactive power supply and harmonic pollution caused by the operation of resistance load. In order to make the power quality meet the requirements of safety, reliability, high quality and economy, it is of profound practical significance to study the reactive power compensation and harmonic suppression technology in depth. Firstly, according to the current situation of harmonic and reactive power in power system, the feasibility of harmonic suppression and reactive power synthesis device is demonstrated, and the harmonic control measures and reactive power compensation principle are studied. It provides a theoretical basis for the research of harmonic suppression and reactive power synthesis device. Secondly, the performance of the integrated detection method of harmonic and reactive current is analyzed and compared, and the ip-iq detection method based on instantaneous reactive power theory is studied emphatically, and the simulation of this detection method is carried out on the basis of the theory. The advantages of this method such as high detection speed, high accuracy and good real-time are verified. Finally, an integrated device based on APF (active Power filter) and SVC (static Var Generator) is designed. The device is connected in parallel by TSC with the same structure and APF connected by H-bridge. The aim of comprehensive management is realized by mutual benefit of TSC and APF. At the same time, the integrated device is applied in the experiment of Jinzhou Tuoxin Power Electronics Co., Ltd. It is proved that the device is more reliable and quick in improving the dynamic performance and stability of the system by processing and analyzing the experimental data. A more sensitive advantage.
【学位授予单位】：辽宁工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM761.12

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