直流输电系统数字仿真中综合友模法的研究

在分析ＨＶＤＣ数字仿真中友模方法的基础上，本文提出了一种综合友模算法，将桥阀及滤波器等复杂元件作为一个整体考虑，推导出综合的友模，大大降低了系统的阶数，提高了求解速度。对换流变压器导出了一种新的能使交直流两侧同步计算的方法，消除了交直流接口问题，使得计算精度大为提高。计算实例表明，该方法具有很好的效果。

Study of Synthetic Companion Model method in HVDC System''s Digital Simulation

Based on the analysis of companion model method in HVDC system's digital simulations,this paper presents a synthetic companion model method in which the complex elements,such as valves and filters,are considered as a whole element and their synthetic companion models are deduced respectively. FOr the commutating power transformers a new simulation model based on the theory of dependent sources waspropsed,which enables to compute both the AC and DC sidesynchronously. The method greatly simplified the computation and increased its speed and accuracy. Calculating examples show that very good results are obtined.