| Substation real-time simulation system provides a powerful tool for training substation operation workers and optimizing the design of secondary system.To ensure the correctness and real-time performance of a substation simulation,a substation system simulation model needs to be established,and the simulation model needs to be quickly complete worked out within the prescribed simulation time-step.The mathematical simulation models of the substation primary system are given,and the node voltage equation is obtained by differencing processing the linear element and nonlinear element differently.The maximum independent set method is used to effectively improve the parallelism of solving the simulation model,and the simulation computation is greatly reduced by nonlinear local iteration algorithms make.A multiple input multiple output instruction stream arithmetic unit with corresponding data storage and code buffer is designed according to the characteristics of high parallelism and depth pipeline in FPGA,and a decoding search method is put forward to describe variable of simulation parameter.A hardware-in-the-loop simulation platform is set up by using the EP4CGX150 FPGA chip and the NR Electric protection devices.A hardware interface of communication is designed by analyzing the SV message and GOOSE message according to the IEC61850 standard,which realize a data communication between primary substation and secondary system. |
