摘要
多脉波整流技术具有实现简单、成本低、可靠性高等优点,在大功率整流系统中得到了广泛的应用。在传统的D型18脉波自耦变压器拓扑基础上,增加三角形连接一次侧来构成隔离式18脉波整流变压器应用于直流配电系统中,对其电路、工作原理、输出直流电压、输入电流谐波进行详细的理论分析;并应用Ansys-Maxwell软件对变压器进行等效建模仿真计算,将仿真结果与理论分析进行对比,验证了仿真结果的可靠性。运用漏磁通法与短路实验法2种方法进行变压器一次侧漏感的求解,着重分析变压器输入电流谐波,讨论变压器漏感对抑制输入电流谐波的影响。
The multi-pulse rectifier technology has advantages such as simple realization,low cost and high reliability,and it has been widely applied in high-power rectifier systems.Based on the topology of a traditional D-type 18-pulse autotransformer,a triangle is added to connect the primary side to form an isolated 18-pulse rectifier transformer,which is further used in a DC distribution system.Its circuit,working principle,output DC voltage and input current harmonics are analyzed theoretically in detail.In addition,the software Ansys-Maxwell is used to perform equivalent modeling of the transformer,and the reliability of simulation results is verified by a comparison with the theoretical analysis.Two methods of leakage flux method and short-circuit experiment are used to solve the primary-side leakage inductance of the transformer.The input current harmonics of the transformer are analyzed in depth,and the influence of transformer leakage inductance on the suppression of input current harmonics is also discussed.
作者
刘浩
孔玲玲
余思宇
LIU Hao;KONG Lingling;YU Siyu(School of Electrical and Information Engineering,Yunnan Minzu University,Kunming 650031,China)
出处
《电源学报》
北大核心
2025年第8期157-166,234,共11页
Journal of Power Supply
关键词
18脉波
隔离式整流变压器
谐波
漏感
18-pulse
isolated rectifier transformer
harmonic
leakage inductance
