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Converter electromagnetic transient simulation method and device, electronic equipment and storage medium

An electromagnetic transient simulation and converter technology, applied in the direction of output power conversion device, AC power input conversion to DC power output, instruments, etc., can solve the problems of low efficiency and long time consumption

Active Publication Date: 2021-04-02
SICHUAN ENERGY INTERNET RES INST TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of this application is to provide a converter electromagnetic transient simulation method, device, electronic equipment and storage medium to solve the problems of long time consumption and low efficiency in the converter electromagnetic transient simulation method in the prior art

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  • Converter electromagnetic transient simulation method and device, electronic equipment and storage medium
  • Converter electromagnetic transient simulation method and device, electronic equipment and storage medium
  • Converter electromagnetic transient simulation method and device, electronic equipment and storage medium

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Embodiment Construction

[0043] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0044]Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention provides a converter electromagnetic transient simulation method and device, electronic equipment and a storage medium, and relates to the technical field of transient simulation. Firstly, carrying out Norton equivalence on devices in a converter, and then obtaining the states, driving signals, terminal voltages, branch currents and bridge arm currents of equivalent switch groups andindependent diodes in the last time step; determining the initial states of the switch group and the independent diode in the current time step according to the state, the driving signal, the terminal voltage and the branch current in the previous time step; updating the states of the switch group and the independent diode according to the state, the initial state and the bridge arm current in the previous time step, and taking the updated states as the states of the switch group and the independent diode in the current time step; repeating the processes of preliminary judgment and state updating until a preset timing step is reached; and finally, carrying out electromagnetic transient simulation according to the states of the switch group and the independent diode in all time steps. Themethod has the advantage of higher simulation efficiency.

Description

technical field [0001] The present application relates to the technical field of transient simulation, in particular to a method, device, electronic equipment and storage medium for electromagnetic transient simulation of a converter. Background technique [0002] Neutral Point Clamped (NPC) three-level converter is a type of power electronic conversion device that has developed rapidly in recent years. Compared with traditional two-level voltage source converters, it has output voltage / current The advantages of small harmonics, low du / dt tolerance of switching devices, small switching loss, and effective reduction of filter size and weight. Therefore, NPC three-level converters have been widely used in medium and low voltage photovoltaic / energy storage / wind power generation systems, multi-phase motor drive systems, high-speed railway power supply systems and other occasions. [0003] In order to study the transient stability characteristics and control and protection strat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/367H02M7/00
CPCG06F30/367H02M7/00
Inventor 张芮宋炎侃于智同陈颖黄少伟沈沉
Owner SICHUAN ENERGY INTERNET RES INST TSINGHUA UNIV
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