正交磁化可控电抗器的设计与特性分析

为解决传统可控电抗器运行中的谐波含量高、负载能力差等问题,针对正交磁化可控电抗器开展研究.介绍正交磁化可控电抗器的结构和磁化机理,分析正交磁场的磁通分布,建立正交磁化可控电抗器的数学模型,并给出电抗器的设计方法.以此为基础设计一台小容量正交磁化可控电抗器,并利用三维有限元对其进行仿真分析.通过实验对所设计电抗器的物理参数、控制特性、伏安特性及谐波特性进行测量与分析.实验结果表明该电抗器的实测电感值与理论设计值基本相符,验证设计方法的合理性,且验证该正交磁化可控电抗器具有电感连续可调、近似线性伏安特性以及谐波电流含量低等优点.

Design and characteristics analysis of orthogonal magnetization controllable reactor

In order to solve the problems of conventional controllable reactor during operating,such as high harmonic content,lower load capacity,the research about orthogonal magnetization controllable reactor was carried out in this paper.The structure and magnetization mechanism of orthogonal magnetization controllable reactor were introduced,the orthogonal magnetic flux distribution was analyzed,the mathematical model was established,and the design method for the reactor was presented.On basis of the above research,a small capacity orthogonal magnetization controllable reactor was designed,which was simulated and analyzed by the method of three dimension finite element.Physical parameters,controlling characteristics,volt-ampere characteristics and harmonic characteristic of the reactor were measured and analyzed through the experiment;the results show that the practical inductance of the reactor is approximately equal to the theoretical one,which certifies that the design method is reasonable.The results also show that the orthogonal magnetization controllable reactor has the advantages of continuously controllable inductance,approximately linear volt-ampere characteristics and low harmonic currents.