The Realization Of EMS Data Online Research On RTDS Simulation Model Of The Southern Network

At present, the RTDS simulation system's application also is only restricted in the off-line working pattern, it can't receive the EMS system's data. To develop a south electrical network RTDS online simulation system can provide the essential technological means for realizing the alternating and direct complex electrical network's online electromagnetism transition condition simulation and carrying on the multianalysis to south electrical network alternating and direct complex movement condition.This article has conducted the research of the realization of EMS data online research on RTDS simulation model. As a result of the hardware equipment's limit of RTDS simulation system's scale, it's impossible to build the complete model for all the equipment in RTDS simulation system. The model of RTDS simulation with EMS system's online model is not completely consistent. It can't directly send the online EMS data to RTDS. It needs to progress the state estimation and so on a series of online processing in the RTDS simulation model.The online RTDS simulation system is composed of several parts:system initialization module, correspondence interface module, state estimation module and generator definition module and so on. Correspondence interface module used the DNP3.0 communication protocol to carry on the input and output data. State estimation module contained the observability analysis based on the tidal current condition of well-posed solution, the state estimation of basic weighting smallest two rides, the bad data detection of standard residual examination, the bad data identification of gradually estimate identification. The definition module of the generator that reverses inferential reasoning for generator excitation voltage and mechanical efficiency has been developed under the RTDS-CBuilder environment.To test the online RTDS simulation system that developed with the 500kV principal electrical network of Yunnan's equivalent model. To choice random EMS's cross section tidal current data to make simulation. And it has confirmed the accuracy and validity of the online RTDS simulation system that developed.