基于NETOMAC软件的直流输电系统混合仿真计算及参数优化

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，该模型能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，并可对任意对称的交流系统故障，直流线路的故障以及故障后直流输电系统的恢复等过程进行仿真的验证的且所需仿真时间较短，针对ＣＩＧＲＥ标准测试系统的仿真结果表明了该方法的优越性。此外，还应用ＮＥＴＯＭＡＣ软件的优

NETOMAC BASED HYBRID SIMULATION AND CONTROLLER PARAMETER OPTIMIZATION OF HVDC SYSTEMS

On the basis of NETOMAC's hybrid simulation function a hybrid simulation model of HVDC system is established in this paper. Using this model, the mechanical electrical transient calculation of ac network in the stability section of the program and the electro magnetic transient calculation of dc network in the transient section of the program can be performed simultaneously. Therefore, the dynamic performance of dc network can be observed more accurately, the faults in any type of symmetrical ac system, the faults in dc line and recovery of dc line after fault can be more accurately simulated, and dynamic response of dc line can be quickly represented. The results of simulation calculation using CIGRE benchmark system indicate the advantages of this method. Besides, the parameters of HVDC controller is optimized by use of the optimization function of NETOMAC.