交直流大电网混合实时仿真(SMRT)平台研发与工程应用

摘要

In order to more accurately and efficiently study the multi-HVDC commutation failure, AC system and multi-DC systems interaction, multi-HVDC infeed system voltage stability and AC-DC system stability control of China Southern Power Grid ( CSG) , a super mixed real-time simulation ( SMRT) consisting of the electromagnetic and electromechanical hybrid simulation by combination of RTDS real-time electromagnetic simulator and large scale power system electromechanical simulation is proposed. In this paper, the hy-brid simulation platform’s system scheme is stated together with the key technologies including real-time electromechanical transient simulation technology of large-scale power grid technology, interactive technology of sequences variables between electromagnetic and electromechanical transient, the high speed digital communication technologies among RTDS and computer. Applications of the SMRT platform to the analysis of CSG’s operation characteristics and to the operator training are illustrated.%为更准确、高效地研究南方电网受端多回直流换相失败、交直流复杂电网交直流相互影响、受端电网电压稳定和交直流电网稳定控制等问题,提出了研发基于RTDS实时仿真器与并行计算机联合闭环运行的电磁暂态-机电暂态混合实时仿真平台( super mixed real-time simulation, SMRT)。系统阐述了SMRT平台的架构和关键技术,即大规模电网实时机电暂态仿真技术、电磁与机电暂态全序量交互技术、 RTDS与计算机仿真接口的数字化高速通信技术等。介绍了其在南方交直流互联大电网复杂系统运行分析、控制研究及运行人员培训中的应用。