电力系统实时仿真中细粒度并行实现

Implementation of Fine Granularity Parallelization in Power System Real-Time Simulation

为充分利用FPGA的高度并行特性,设计了一种可实现加减乘除混合运算的变结构运算组件.从实用性和扩展性角度出发,用控制指令描述对运算组件的操作,用有向无环图描述计算任务之间的依赖关系,提出了一种新的基于FPGA的仿真程序设计方法.在此基础上,以30,μs仿真步长在一块5SGSMD5芯片上实现了IEEE-14电力系统的实时仿真,其实验结果与PSCAD仿真结果相吻合.

In order to make full use of highly parallel characteristic of FPGA,a variable-structure processing unit was designed to achieve arithmetic with the mixed operation of addition,subtraction,multiplication and division.From the perspective of practicability and extensibility,applying the control instruction to describing the operation of processing unit and the directed acyclic graph to describing the process of parallel computing,a new simulation program design method based on FPGA was proposed.On this basis,a real-time simulation of IEEE-14 bus power system has been realized on a 5SGSMD5 chip with 30 μs time-step,and the experimental results are consistent with the PSCAD simulation results.