基于FPGA的逆变电路离散模型仿真研究

Research on Inverter Circuit Simulation Based on FPGA

在电路仿真技术中,利用现场可编程门阵列(Field Programmable Gate Array,FPGA)并行计算的优势可以实现纳秒级的小步长仿真,能够真实地反映电路的实际情况。为了搭建适用于FPGA运算的模型,通过前向欧拉的数值积分算法对单相全桥逆变电路进行了建模分析,使用System Generator软件搭建了该电路的欧拉模型并进行仿真,将其仿真结果和用Simulink搭建的相同电路仿真结果进行比较,证明了欧拉模型的有效性和正确性,为基于FPGA进行半实物仿真研究提供了思路。

In circuit simulation technology,the advantage of field programmable gate array(FPGA)parallel computing can be used to achieve nanosecond-level small step simulation,which can truly reflect the actual situation of the circuit.In order to build a model suitable for the operation of FPGA,the single-phase full-bridge inverter circuit is modeled and analyzed by the forward Euler numerical integration algorithm.The Euler model of the circuit is built and simulated by using System Generator software.The simulation results are compared with the simulation results of the same circuit built by Simulink,which proves the validity and correctness of the Euler model,and provides ideas f for the research of Hardware-in-the-loop Simulation Based on FPGA.