大容量移相整流变压器电流分布与短路阻抗的数值计算

Numerical Calculation of Current Distribution and Short Circuit Impedance for Large Capacity Phase Shifting Rectifier Transformer

利用场-路耦合法对大容量移相整流变压器建立了三维漏磁场计算模型和对应的等效电路,并对几种不同运行工况下的短路阻抗、各支路电流分布等电磁特性参数进行了数值计算与验证分析,由此得到了整流变压器在非对称运行工况下的电流分布规律和若干指导产品设计的应用结论,为移相整流变压器的设计提供了可靠的分析手段。

The 3D FEM model coupling with the equivalent electric-circuit is well established for a large capacity phase-shifting rectifier transformer （PSRT）. Then, short-circuit impedances and branch currents of different oper-ating conditions are calculated and validated by the field-circuit coupled method （FCCM） respectively. Thus the current distribution and some conclusions are obtained, which provide reliable analysis method for product design of phase-shifting rectifier transformer.