High-performance real-time simulation method based on FPGA (field programmable gate array)

Abstract

The invention provides a fast forming simulation method for an electric power transmission real-time simulation system. A simulator system completely based on FPGA (field programmable gate array) hardware comprises the following contents of (1) FPGA realization of electric and electronic device models: curve fitting and piecewise linearization are used for carrying out switch feature simulation; (2) FPGA realization of an electric motor: an equivalent circuit of the electric motor is analyzed, and a discretization method is used for carrying out precise simulation on the electric motor; (3) FPGA realization of rest hardware parts of an electric power transmission system: the reset hardware parts are simplified into a one-order linear model; (4) interface part design: PC (personnel computer) codes are used for completing the development. A design method from the top to the bottom is adopted, and the fast forming simulation method of carrying out primary simulation, mixed simulation and FPGA in-loop simulation on the complete electric power transmission real-time simulation system is adopted, the device modeling complexity is simplified, the exchange between a user interface module and the user information is promoted, and the operation efficiency of the system is improved.

Description

technical field [0001] The invention relates to a simulation method based on FPGA rapid prototyping, in particular to a real-time simulation method based on FPGA rapid prototyping in power electronics and electric drive systems. Background technique [0002] With the development of computer technology, simulation systems based on pure software environment, such as Matlab / Simulink, Saber, PSPICE, etc. are gradually developed. This type of system runs on a software platform based on a personal computer (PC), and uses the corresponding mathematical model instead of the actual system for simulation verification. The simulation system based on pure software environment has the advantages of simple operation and low complexity, but the simulation speed is slow because the software adopts serial execution mechanism. And the increase of algorithm complexity has higher requirements on PC hardware. The biggest shortcoming of this type of simulation system is the lack of ability to i...

AI Technical Summary

Problems solved by technology

Aiming at the problem of complex switching characteristics and high nonlinearity of power electronic devices, curve fitting, piecewise linearization and other means are used to simulate its switching characteristics; for the problems of complex calculation and slow processing speed of traditional motor simulation based on state space model, research Its dynamic equivalent circuit model and parallel processing using FPGA; the method also includes the simulation of other components in the electric drive system and the design of the human-machine interface

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