【摘要】 为实现变压器的暂态全过程计算,建立了适合不同暂态阶段仿真的电磁暂态、跃变量和准稳态的abc坐标系统模型。在此基础上,根据不同暂态阶段的动态特性将上述模型相结合,应用面向对象技术建立了适合暂态全过程仿真的变压器自适应模型。仿真结果表明:该模型完整地描述了变压器的暂态过程,具有精度高、计算量小和转换判据可靠等特点,可用于电力系统过电压、故障分析和保护校验、交直流系统相互作用以及暂态稳定等问题的研究。更多还原

【Abstract】 For calculating the whole transient of transformer, the electromagnetic transient modei, the jump calculating modei and the quasi-stable state modei in abc reference frame are constructed for different transient processes. According to dynamic characteristics of the power system, this paper unites these models of transformer, and makes use of OOP to build the self-adaptive model. The results show that this modei describes whole transient of transformer and has character of high precision, less time complexity and reliable criterion. It can be used in over-voltage, short-circuits, interaction of AC/DC system and transient stability.更多还原