NETOMAC在直流输电系统仿真研究中的应用

基于NETOMAC软件的混合仿真功能，建立了直流输电系统的混合仿真计算模型。该模型能够在对交流网络进行机电暂态计算的同时，对直流网络进行电磁暂态计算，因而能较精确地考察暂态过程中直流线路的动态行为。针对CIGRE标准测试系统的仿真计算表明了方法的优越性。此外，还针对一个典型的多馈入直流输电系统，定义了影响多馈入直流输电系统中换相失败及其发生类型的2个重要参数，对仿真过程中发理的一些现象也给出了理论上的解释。

Application of NETOMAC on HVDC System Simulation

The hybrid simulation model of HVDC system is established based on NETOMAC's hybrid simulation functions.With it,the electromechanical transient calculation for AC network and the electromagnetic transient calculation for DC network can be done simultaneously,and the DC line behavior during transient process can be observed more accurately.The simulative calculation using CIGRE benchmark system shows the advantage of this method.Furthermore,two important parameters are defined for a typical multi infeed HVDC system,which affect the occurrence conditions and types of commutation failures in multi infeed HVDC system.Theoretical explanations are also given to some phenomena occurred during the simulation process.