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Real-time digital simulation method of power electronic convertor

A technology of real-time digital simulation and power electronics, applied in the direction of electrical digital data processing, conversion of AC power input to DC power output, instruments, etc., can solve problems such as high hardware cost and difficulty of power electronic converters, and achieve real-time performance, taking into account calculation accuracy and calculation efficiency, and the effect of high calculation accuracy

Inactive Publication Date: 2012-06-20
TSINGHUA UNIV
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  • 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
  • Real-time digital simulation method of power electronic convertor
  • 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-phas...

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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 controllerto 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 Patents(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