A General Nonlinear Modeling Module and Its Modeling Method Applied to Switching Power Supply

A modeling module and nonlinear technology, applied in electrical components, regulating electrical variables, CAD circuit design, etc., can solve problems such as increasing the difficulty of modeling and analysis, complex working states of switching converters, etc., and achieve the goal of improving efficiency and simplifying difficulty. Effect
CN110719032BActive Publication Date: 2021-12-10NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2021-12-10

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Abstract

The invention discloses a general non-linear modeling module and a modeling method applied to switching power supplies. The general ITIS module corresponds to three different modeling models, which are respectively the general ITIS module steady state model and the general ITIS module large signal model. , General ITIS module small signal model. Use the general ITIS module to uniformly express the nonlinear part including some inductive elements and switching devices in the switching converter, complete the modeling of the complex nonlinear part in the switching converter in advance, and establish the steady state of the target converter Model, large-signal model or small-signal model, it is only necessary to establish the external linear network state equation of the equivalent ITIS module of the target converter and substitute it into the general ITIS module. The invention greatly simplifies the difficulty of user modeling and improves the efficiency of modeling analysis.
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Description

technical field

[0001] The invention relates to a power converter modeling technology, in particular to a general nonlinear (ITIS) modeling module and a modeling method applied to a switching power supply. Background technique

[0002] Establishing a suitable converter model is the key to the analysis and design of switching power supply. Traditional modeling methods include state space averaging (SSA), average switching model, switching signal flow graph nonlinear modeling (SFG) and so on. These methods are all based on the idea of ​​averaging modeling, the essence of which is to average and linearize the nonlinear switching elements in the switching converter circuit to obtain an equivalent circuit consistent with the original circuit topology, but with the circuit working state With the improvement of the order and order, the modeling will become complicated, which brings difficulties to researchers. In recent years, switching converters mostly use coupled inductors or ...

Claims

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