Simulation method and system for simulating transient process of controlling converter transformer to shift up and down by tap switch

The invention relates to a simulation method and system for simulating a transient process of controlling a converter transformer to shift up and down by a tap switch, and belongs to the technical field of power system simulation. A converter transformer simulation model with a split-type tap switch loop is constructed by a transformer with a plurality of tap taps established in a simulation system, the tap taps of the transformer are switched through a split-type tap switch, and the transient process that the split-type tap switch controls upshift and downshift of the converter transformer is simulated by using output parameters of preset points. According to the invention, the transient process of the gear switching of the split-type tap switch is accurately simulated, so that the verification of the converter transformer protection logic is fully covered. 本发明涉及一种模拟分接开关控制换流变升降档暂态过程的仿真方法及系统，属于电力系统仿真技术领域。利用仿真系统中搭建的具有多个分接抽头的变压器构建的带有分体式分接开关回路的换流变仿真模型，通过分体式分接开关切换所述变压器的分接抽头，利用预设点的输出参数模拟分体式分接开关控制换流变升降档的暂态过程。本发明对分体