SMRT电磁机电混合实时仿真交流-交流分网技术研究  

Research on the AC/AC Interface in SMRT Electromagnetic Transient and Electromechanical Transient Hybrid Real-Time Simulation

作　　者：欧开健[1,2] 张树卿[3] 童陆园[3] 曾勇刚 郭琦 

机构地区：[1]南方电网科学研究院,广州510080 [2]华南理工大学电力学院,广州510640 [3]清华大学电机工程与应用电子技术系,北京100084

出　　处：《南方电网技术》2015年第1期47-51,共5页Southern Power System Technology

基　　金：中国南方电网公司2012年科技项目(K-KY2012-005)~~

摘　　要：针对电磁机电混合实时仿真(super mixed real-time simulation,SMRT)中交流-交流(交交)分网方式的难点和实用化的需要,提出了映射式交交分网方案,通过电磁、机电两侧重叠的映射子网络维持交流系统三序网络的完整和交流系统之间的同步。进一步通过基于映射子网的接口等值模型、基于映射关系的预估-校正接口误差治理等关键技术,保证了混合仿真交互计算的稳定和电磁、机电暂态两侧有效、平滑地接口。案例分析表明,映射式交交分网方案有效实用,相对于交流-直流(交直)分网方式,可以更准确地模拟复现交流电网与直流电网或电力电子设备间存在的重要高频暂态过程。Aiming at the difficulties in hybrid real-time simulation with AC/AC partitioning and utilization needs, an AC/AC partitioning scheme with mapping sub-grid is proposed to maintain the complete three-sequence girds of the AC power system and the synchronization of the whole AC system. Key techniques, such as mapping sub-grid based interface equivalent modelling and mapping relation based estimation and correction, are given to ensure a stable interactive computation and smooth interface between electromagnetic and electromechanical transient sides. Cases tests prove the validity and practicality of the proposed scheme. Comparing the simulation resuits with the AC/DC partitioning scheme, the high-frequency transient phenomenon in the AC and DC （ or power electronic equipment） systems can be simulated more accurately with the mapping based AC/AC partitioning scheme.

关 键 词：混合实时仿真 交流-交流分网接口 映射子网 实时仿真 

分 类 号：TM743[电气工程—电力系统及自动化] TM721.3