Subsynchronous resonance electro-mechanical combination simulation method and system

A subsynchronous resonance and co-simulation technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as theoretical flaws and deviations in analysis results, and achieve the effect of improving accuracy

Active Publication Date: 2015-02-18
TSINGHUA UNIV
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  • Abstract
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Problems solved by technology

However, this analysis method of electromechanical separation has theoretical flaws, and the obtained analysis results will also have large deviations.

Method used

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  • Subsynchronous resonance electro-mechanical combination simulation method and system
  • Subsynchronous resonance electro-mechanical combination simulation method and system
  • Subsynchronous resonance electro-mechanical combination simulation method and system

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Embodiment Construction

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. 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.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0040] In the present invention, unless otherwise clearly specified...

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Abstract

The invention discloses a subsynchronous resonance electro-mechanical combination simulation method and system, wherein the method comprises the following steps that modeling parameters of an electric power system are obtained, and an electric model is built in PSCAD (power system computer aided design) software; modeling parameters of a steam turbine generator set shaft system are obtained, and a continuous mass block shaft system model is built in ANSYS software; a state file and a data file are set; a data communication interface is built; after starting signals are received, the combination simulation of the PSCAD software and the ANSYS software is realized through the electric model and the continuous mass block shaft system model. The method according to the embodiment of the invention has the advantages that through the combined calculation of the PSCAD software and the ANSYS software, the complicated mechanical shaft system is applied to time domain simulation analysis, so that the detailed torque change of each part of the shaft system can be directly obtained, and the foundation is laid for the subsequent fatigue analysis, more complete electro-mechanical coupling dynamic analysis is realized, and the analysis accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to an electromechanical co-simulation method and system for subsynchronous resonance. Background technique [0002] The time-domain simulation method is often used in the analysis of SSR (SubSynchrous Resonance) problems, that is, the power system and its differential equations are modeled and solved by using electromagnetic transient simulation software such as PSCAD / EMTDC. When applying this method to analyze SSR, the corresponding system components and the whole need to adopt the electromagnetic transient model. Among them, the model of the shafting mechanical system of the generator set is indispensable. [0003] In related technologies, for example, in computer-network coupling simulation software such as PSCAD (Power Systems Computer Aided Design, electromagnetic transient simulation software) / EMTDC (Electromagnetic Transients including DC, simulation calculation core),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 谢小荣张传宇刘华坤蒋东翔刘超
Owner TSINGHUA UNIV
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