【摘要】 为了扩大磁控可调电抗器(Saturable-Core Controllable Reactor,SCCR)的电抗调节范围并保持良好的线性控制特性,设计和研究一种基于磁放大原理的新型磁控可调电抗器结构,该电抗器铁心磁路中设置有气隙。论文分析了该可调电抗器的磁化机理和控制特性,利用三维有限元方法(FEM)计算了新型磁控可调电抗器的磁场分布,建立了考虑漏磁效应的磁控可调电抗器的等效磁路模型。研究结果表明,新型磁控可调电抗器的电抗控制特性线性调节范围宽,对直流偏磁电源容量要求小。通过将仿真计算与样机测试结果比较,验证了所建立等效磁路模型的正确性和有效性,对新型磁控可调电抗器的设计和应用具有参考价值。更多还原

【Abstract】 In order to extend the operating range and maintain the linear control characteristics, a new type of saturable-core controllable reactor(SCCR) is designed and researched based on the theory of magnetic amplifier. An air gap is inserted in the ferromagnetic core to improve the linearization of the saturation characteristics. The magnetization mechanism and characteristics are studied. The magnetic flux distribution of the reactor is analyzed by using the three-dimension finite element method(FEM). On the basis of above research, the equivalent magnetic circuit model is built incorporating the magnetic flux leakage. The linear operating range of the new type of SCCR is increased and the capacity of DC source connected to the SCCR is also reduced. The simulation is compared with the prototype test results. The research results show that the equivalent magnetic circuit model is accurate.This has reference value in the design and application of the new saturable-core controllable reactor.更多还原