紧凑化正交可控电抗器电感调节特性

Inductance Regulation Characteristics of Compact Orthogonal Controllable Reactor

正交可控电抗器具有谐波含量低、电感变化较为线性的优点,在电能治理等领域有广泛的应用前景。针对传统正交可控电抗器电感可调范围小和空间占地多等问题,该文提出"十字型"和"丰字型"两种紧凑化正交可控电抗器。首先,通过电磁理论分析,建立紧凑化正交可控电抗器的电路磁路模型;其次,建立有限元仿真模型并得到其电感调节特性;最后,研制两台220V正交可控电抗器样机,并搭建实验平台进行电感调节特性测试。仿真和实验结果表明,相较于传统模型,在相同材料用量的情况下,该文所提出的"十字型"正交电抗器拓扑空间占用减小了53.7%、电感调节范围增大了1倍,"丰字型"拓扑则将电感调节范围增大了1.93倍。此外,正交拓扑还实现了控制绕组和工作绕组的解耦。

Orthogonal controllable reactors(OCRs)have the advantages of low harmonics and linear inductance regulation,which have wide application prospects in the field of power quality control.However,the traditional OCR has small inductance regulation range and large space occupation.Therefore,two compact reactors,namely type-I and type-II,are proposed in this paper.Firstly,the magnetic circuit models of the reactors were analyzed.Secondly,the simulation models were established and the inductance regulation characteristics of the two OCRs were obtained.Lastly,two 220 V prototypes were developed,and an experimental platform was built to test the inductance regulation characteristics.The results show that,compared with the traditional one,the space occupation of the type-I topology is reduced by 53.7%,and the inductance regulation range is doubled.The type-II topology increases the inductance regulation range by 1.93 times.In addition,the orthogonal topology realizes the decoupling of control and working windings.