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Discrete state event-driven simulation method for power electronic hybrid system simulation

A technology for power electronics and hybrid systems, applied in the field of discrete state event-driven simulation, which can solve problems such as large amount of calculation

Active Publication Date: 2019-03-29
TSINGHUA UNIV
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Problems solved by technology

In addition, since the system state cannot be expressed as an explicit function of time, the process of locating passive events involves the entire process of numerical integration, resulting in a large amount of calculation for the process

Method used

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  • Discrete state event-driven simulation method for power electronic hybrid system simulation
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  • Discrete state event-driven simulation method for power electronic hybrid system simulation

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[0078] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0079] Aiming at the discrete state event driven (DSED) simulation me...

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Abstract

The invention discloses a discrete state event-driven simulation method for power electronic hybrid system simulation. Based on the hybrid characteristics of a power electronic system, a simulation method is designed for a continuous state and a discrete event coexisting in the power electronic system. The simulation method comprises a flexible adaptive algorithm with variable order and step sizeand an event-driven mechanism which automatically triggers simulation calculation through the discrete event. The continuous state is described by a state variable method. The discrete event is defined as a trigger source of simulation calculation. The discrete state event-driven simulation method for power electronic hybrid system simulation solves the problems of large simulation computation andlong time of a complex power electronic system under the premise of ensuring accuracy.

Description

technical field [0001] The invention relates to the technical field of power electronic system simulation, in particular to a discrete-state event-driven simulation method for power electronic hybrid system simulation. Background technique [0002] A power electronic system is essentially a hybrid dynamic system consisting of continuous states and discrete events. Based on the hybrid characteristics of power electronic systems, an accurate and efficient power electronic system simulation method should have the following characteristics: [0003] 1) Flexible integration of continuous states: Both the order and the step size can be adaptively adjusted according to the change of the system state, and the adaptive adjustment mechanism should be fully embedded in the process of numerical integration, so as to avoid extra calculation ; [0004] 2) Efficient localization of discrete events: An efficient event localization mechanism should be able to effectively distinguish active...

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Application Information

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IPC IPC(8): G05B17/02G06F17/11H02M1/00
CPCG05B17/02G06F17/11H02M1/00H02M1/0012G06F30/367G06F2119/06G06F9/542G06F30/20
Inventor 朱义诚赵争鸣施博辰虞竹珺
Owner TSINGHUA UNIV
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