磁阀式可控电抗器的快速励磁技术研究

发布时间：2018-03-06 21:29

本文选题：磁阀式可控电抗器　切入点：快速励磁技术　出处：《华北电力大学(北京)》2016年硕士论文　论文类型：学位论文

【摘要】：近几年来,随着我国社会经济的不断发展,电力工业也得到了蓬勃发展。人们生活水平的提高,使得对用电的安全性、可靠性提出了更高的要求。由于人口数量的日益剧增,用电量也随之而增加,加剧了超高压大电网的负荷,亟需大量快速响应的可调无功电源来对电压加以调整。目前,我国电网采用同步调相机、晶闸管投切电容器、静止无功补偿器等自动无功补偿装置。然而,以上设备造价较昂贵,且维护相对较复杂,限制了其应用。为此,寻求更为经济实惠的可调无功电源尤为必要。在此背景下,磁阀式可控电抗器应运而生,可自动调节自身容量,降低工频电压的升高,且谐波小,有效保证供电可靠性。因此,研究磁阀式可控电抗器的快速励磁技术及其应用具有重要意义。本文通过分析国内外当前对磁阀式可控电抗器的相关研究,并阐述了磁阀式可控电抗器的工作原理及其限压特性、谐波特性、伏安特性、控制特性、响应特性,为本次研究奠定理论基础；首次探讨了磁阀式可控电抗器的谐波抑制方法,并通过仿真建立了磁阀式可控电抗器的快速励磁技术,给出了样机实验,证明观点；采用模糊控制法及其仿真法研究了磁阀式可控电抗器的自动调谐滤波,提出了采用移相绕组的方式来有效抑制移相绕组方式自发谐波；最后,针对新型的调容式消弧线圈,设计了消弧线圈仿真系统,并在MATLAB仿真平台上搭建了系统仿真模型,完成消弧线圈系统仿真,通过系统仿真充分验证了新型调容式消弧线圈的优势。通过仿真及样机实验研究了磁阀式可控电抗器的快速励磁技术及其在消弧线圈中的应用,得到磁阀式可控电抗器在超高压电力系统中有着广阔的应用前景,可提高我国电网的输电能力,保证供电安全。
[Abstract]:In recent years, with the continuous development of our country's social economy, the electric power industry has also been booming. The improvement of people's living standard makes the safety and reliability of electric power more demanding. With the increase of power consumption, the load of the large UHV power grid is increased, and a large number of adjustable reactive power sources with quick response are needed to adjust the voltage. At present, the power grid in our country uses synchronous camera and thyristor switching capacitor. Automatic reactive power compensator such as static Var compensator. However, the above equipment is more expensive and its maintenance is relatively complex, which limits its application. Therefore, it is necessary to seek more economical adjustable reactive power supply. Magnetic valve controllable reactor emerges as the times require, which can automatically adjust its capacity, reduce the rise of power frequency voltage, and reduce harmonics, which can effectively guarantee the reliability of power supply. It is of great significance to study the fast excitation technology of magnetic valve controllable reactor and its application. The working principle, voltage limiting characteristic, harmonic characteristic, volt-ampere characteristic, control characteristic and response characteristic of the magnetic valve type controllable reactor are expounded, which lays a theoretical foundation for this research, and discusses the harmonic suppression method of the magnetic valve type controllable reactor for the first time. The fast excitation technology of the magnetic valve controllable reactor is established by simulation, and the prototype experiment is given to prove the viewpoint, the fuzzy control method and its simulation method are used to study the automatic tuning filter of the magnetic valve controllable reactor, and the automatic tuning filter of the magnetic valve controllable reactor is studied by using the fuzzy control method and its simulation method. A phase shift winding is proposed to effectively suppress the spontaneous harmonics of phase shifting winding. Finally, a simulation system of arc suppression coil is designed for a new type of capacitive arc suppression coil, and the simulation model of the system is built on the MATLAB simulation platform. The system simulation of arc suppression coil is completed, and the advantages of new type capacitive coil are fully verified by system simulation. The fast excitation technology of magnetic valve controllable reactor and its application in arc suppression coil are studied by simulation and prototype experiment. The magnetic valve controllable reactor has a broad application prospect in the UHV power system, which can improve the transmission capacity of China's power grid and ensure the safety of power supply.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM47

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