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Real-time digital simulation method of power electronic convertor

A real-time digital simulation and power electronics technology, applied in electrical digital data processing, conversion of AC power input to DC power output, instruments, etc. Accuracy and calculation efficiency, guarantee real-time performance, and easy real-time numerical simulation calculation effect

Inactive Publication Date: 2011-01-05
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the above reasons, the high-frequency switching action will bring a lot of extra calculations to the simulation calculation. It is difficult or requires high hardware cost to realize the real-time simulation of the power electronic converter using the existing technology method

Method used

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  • Real-time digital simulation method of power electronic convertor
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  • Real-time digital simulation method of power electronic convertor

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Embodiment Construction

[0022] The real-time digital simulation method of power electronic converter proposed by the present invention, its flow chart is as follows figure 1 shown, including the following steps:

[0023] (1) Establish the differential equations describing the digital simulation model of the power electronic converter:

[0024] i = AI + BU t + CU S U · dc = F 2 ( I , S )

[0025] in i a i b i c are the three-phase output current electrical parameters of the...

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Abstract

The invention relates to a real-time digital simulation method of a power electronic convertor, which belongs to the technical fields of power electronic device simulation and controller testing. The method comprises the following steps of: firstly establishing a differential equation set for describing a power electronic convertor model, inputting an on-off state signal generated by a controller to be tested to a field programmable gate array for time average calculation to obtain an on-off state time average signal as the input of the differential equation set, solving the discrete differential equation set in a digital signal processor, calculating the internal electric-parameter digital signal of the power electronic convertor, and then inputting to the controller to be tested after digital / analog conversion. The method has simple design, gives consideration to both the calculation precision and the calculation efficiency and can easily realize the real-time numerical simulation calculation of the power electronic convertor.

Description

technical field [0001] The present invention relates to a real-time digital simulation method for a power electronic converter, in particular to a real-time digital simulation method for a power electronic converter based on a field programmable gate array (hereinafter referred to as FPGA) and a digital signal processor (hereinafter referred to as DSP) The invention belongs to the technical field of simulation and controller testing of power electronic devices. Background technique [0002] For various converter installations based on power electronic switching devices, it is important to physically test the controller of the power electronic converter. At present, a high-efficiency means of realizing physical testing in the field of electric power is real-time digital simulation technology. However, due to the high switching frequency of power electronic devices, the existing real-time digital simulation tools in the power field are greatly limited when applied to real-tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50H02M7/5387
Inventor 宋强刘文华陈远华张秀娟王敏盛晔沈雅琴陈晓宇
Owner TSINGHUA UNIV