调度员培训仿真器中三相不对称系统的稳态仿真

针对调度员培训仿真器(DTS)的特点，提出了一个在以单相仿真为主的DTS中嵌入三相不对称系统稳态仿真的方法，包括潮流计算和故障分析。该方法基于相分量模型，除对变压器和线路采用详细模型外，还能够考虑多项式负荷。算法在不收敛情况下以误差最小解为计算结果，提高了DTS的鲁棒性。以消弧线圈接地电网的仿真为例说明了该方法的有效性和在DTS中的重要作用，并揭示出负荷特性对消弧线圈运行整定有重要影响。

STATIC SIMULATIONS FOR UNBALANCED THREE-PHASE POWER SYSTEMS IN DTS

A m ethod for load flow and fault analysis in unbalanced three- phase power system s is presented,according to the special requirements of DTS.The method based on phase com ponent m odels can simulate polynom ial loads besides m odeling transformers and lines in details. To enhance the robustness of DTS,the solution with the minimum error is taken as the result when convergence cannot be found.As an example,the simulation of a sub- transmission system earthing with arc suppression coils is shown to demonstrate the effectiveness of the presented method.It is also shown that load characteristics have significant influence on the operation of arc suppression coils.