Graphics Processor Memory Management Method for Power Electronics Transient Simulation Acceleration

A graphics processor, transient simulation technology, applied in electrical digital data processing, design optimization/simulation, special data processing applications, etc., can solve problems such as large simulation time and consumption

Active Publication Date: 2021-09-07
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

For the exponential integration algorithm, it is necessary to regenerate the state matrix after each state change, and to Family of functions to solve, which will consume a lot of simulation time

Method used

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  • Graphics Processor Memory Management Method for Power Electronics Transient Simulation Acceleration
  • Graphics Processor Memory Management Method for Power Electronics Transient Simulation Acceleration
  • Graphics Processor Memory Management Method for Power Electronics Transient Simulation Acceleration

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Embodiment Construction

[0048] The graphics processor memory management method oriented to power electronic transient simulation acceleration of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings.

[0049] Such as figure 1 As shown, the graphics processor memory management method for power electronic transient simulation acceleration of the present invention comprises the following steps:

[0050] 1) Under the state analysis framework, establish a transient simulation model of the power system to be simulated, described by the following nonlinear differential equations:

[0051]

[0052] Among them, x is the state variable of the electrical system and the control system, and the state matrix A represents the coefficients of the linear part in the system differential equation, including each state quantum module and mutual coupling relationship, reflecting the relevant information used to obtain the state variable x in the system,...

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Abstract

A graphics processor memory management method for power electronic transient simulation acceleration, focusing on the contradiction between limited computing resources and large-scale power system electromagnetic transient simulation computing requirements. During the simulation process, the rapid changes of multiple power electronic switches make the system state change frequently, and the state update matrix needs to be solved and stored many times, which leads to the problems of low computing efficiency and excessive computing resources. The memory replacement method based on the least recently used algorithm can ensure the smooth progress of electromagnetic transient simulation under limited computing resources. The replacement method can greatly increase the size of the simulation at the expense of very little simulation speed.

Description

technical field [0001] The invention relates to a power system simulation processing method. In particular, it relates to a graphics processor memory management method for power electronic transient simulation acceleration, which is suitable for power system transient modeling and simulation applications. Background technique [0002] In recent years, the power system is facing the challenges of large-scale access to renewable energy and the increasing scale of AC-DC interconnected grid operation in actual operation. Traditional electromagnetic transient simulation algorithms are used to study its complex transient characteristics and operational control issues will be limited in terms of computing resources and computing speed. The electromagnetic transient simulation of power system based on detailed dynamic characteristic modeling of components is gradually gaining more attention and attention in the analysis, design and operation of new energy power systems because it c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/50G06F30/20
CPCG06F9/5016G06F30/20
Inventor 王成山吴蔚李鹏富晓鹏
Owner TIANJIN UNIV
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