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Power electronic circuit transient simulation GPU acceleration method facing exponential integral

A power electronic circuit, electromagnetic transient simulation technology, applied in the direction of instruments, simulators, control/regulation systems, etc., can solve the problems of consumption, large simulation time, etc., achieve simulation calculation speed improvement, high numerical accuracy, suitable for large Effects of Scaling High-Dimensional Nonlinear Problems

Inactive Publication Date: 2018-04-17
天津天成恒创能源科技有限公司
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Problems solved by technology

For the exponential integration algorithm, it is necessary to regenerate the state matrix after ea

Method used

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  • Power electronic circuit transient simulation GPU acceleration method facing exponential integral
  • Power electronic circuit transient simulation GPU acceleration method facing exponential integral
  • Power electronic circuit transient simulation GPU acceleration method facing exponential integral

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Embodiment Construction

[0054] Below in conjunction with embodiment and accompanying drawing, exponent integration-oriented power electronic circuit transient simulation GPU acceleration method of the present invention is described in detail.

[0055] The GPU acceleration method for power electronic circuit transient simulation oriented to exponential integration of the present invention is based on exponential integration algorithm through matrix storage strategy and graphics processor parallel calculation, comprehensively considers multiple switching actions, finally improves simulation efficiency, and has good numerical accuracy and stability sex.

[0056] Such as figure 1 As shown, the power electronic circuit transient simulation GPU acceleration method for exponential integration of the present invention comprises the following steps:

[0057] 1) Under the state analysis framework, establish the electromagnetic transient simulation model of the power system to be studied;

[0058] The electro...

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Abstract

The invention provides a power electronic circuit transient simulation GPU (Graphic Process Unit) acceleration method facing exponential integral. During the simulation process of a power electronic circuit in which the switch state is changed frequently, for an exponential integral algorithm, a Phi matrix is re-solved, thus consuming a lot of simulation time. The simulation acceleration strategysuggested by the power electronic circuit transient simulation GPU acceleration method facing exponential integral stores the calculated Phi matrix, and when encountering the same switch state, the Phi matrix is directly called so as to greatly save the calculating time of the Phi matrix. A linear interpolation considering multiple switch motions is improved, to enable the simulation step to be not changed, thus being more suitable for matrix storage. During the simulation process, for the electrical system, the GPU parallel calculation resource is utilized to perform solution with high efficiency while the control system and other complicated calculation parts are maintained on CPU for calculation. The power electronic circuit transient simulation GPU acceleration method facing exponential integral can effectively improve the simulation speed of the power electronic circuit, and provides a new thought for solving the new demand of the electrical energy system facing power electronization.

Description

technical field [0001] The invention relates to a GPU acceleration method for power electronic circuit transient simulation. In particular, it relates to an exponential integration-oriented power electronic circuit transient simulation GPU acceleration method suitable for power system electromagnetic transient modeling and simulation applications. Background technique [0002] In recent years, with the large-scale access to renewable energy and the increasing operation scale of AC-DC interconnected grids, and considering the development trend of power electronic power systems, the power energy system is facing unprecedented coupling and complex dynamic characteristics. challenges in its operational control. 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 can accurately describe...

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 富晓鹏刘君陶李鹏王成山赵金利
Owner 天津天成恒创能源科技有限公司
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