电力系统电磁暂态计算中含铁芯元件磁滞特性的分析与仿真

SIMULATION OF FERROMAGNETIC ELEMENTS WITH HYSTERESIS IN THE ELECTRO MAGNETIC TRANSIENT CALCULATION IN POWER SYSTEM

在分析电力系统铁磁元件磁滞特性的基础上，将多值的励磁特性模拟为一个主磁滞回环和动态磁滞回环族，建立了计及铁芯饱和、磁滞、动态磁滞回环等特性的铁磁元件的数学模型，并给出算例。结果表明，该模型不仅能较好模拟铁磁元件的动态磁化特性，而且方法简单。

Based on studies of hysteresis characteristics of ferromagnetic elements in power system, the paper presents a simple algorithm, which accounts for the characteristics of ferromagnetic elements such as saturation, hysteresis and dynamic hysteresis, and the multi valued hysteresis behaviour is simulated as a major loop and a set of minor loop trajectories. An illustrative example is given, the results show that the accuracy of simulation meets the need of the demand, and it is also simpler than other methods.