EMTDC-based control protection simulation modeling method

A technology of control protection and simulation modeling, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of no multi-task execution cycle scheduling, large differences in operating conditions, etc., and achieve reliable simulation results , improve consistency, and facilitate setting effects

Inactive Publication Date: 2017-06-13
NR ELECTRIC CO LTD +1
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AI Technical Summary

Problems solved by technology

The standard components in PSCAD / EMTDC’s built-in component library do not have the function of multi-task execution cycle scheduling. The simulation model built on this basis will cause a large difference between the simulation results of the model and the actual project operating conditions.

Method used

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  • EMTDC-based control protection simulation modeling method
  • EMTDC-based control protection simulation modeling method
  • EMTDC-based control protection simulation modeling method

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0015] A control and protection simulation modeling method based on EMTDC, using the basic function modules whose execution cycle can be set to build the control and protection logic of the simulation model, the basic function modules of each logic segment can use different execution cycles, and the execution cycle of the basic function modules is determined by Execute the unified scheduling of the periodic pulse generation module.

[0016] The execution period pulse generation module and the basic function module with settable execution period are all developed through the PSCAD / EMTDC software self-defining function. The execution cycle pulse generation module sends out pulse signals when the ...

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Abstract

The invention discloses an EMTDC-based control protection simulation modeling method. A basic function module with a settable executive cycle is adopted for establishing control protection logic of a simulation model, the basic function module of each section of the logic can adopt different executive cycles, and the executive cycles of the basic function module are scheduled in a unified way through an executive cycle pulse generation module; the executive cycle pulse generation module and the basic function module with the settable executive cycle are both developed through self-defined functions of PSCAD / EMTD software, and the executive cycle pulse generation module sends out a pulse signal when a time interval is equal to a set executive cycle; and the basic function module takes an output of the executive cycle pulse generation module as a parameter. According to the method, the consistency of the simulation model and practical engineering can be improved; a simulation result is more reliable; and an analysis result can better guide engineering practice.

Description

technical field [0001] The invention relates to an EMTDC-based control and protection simulation modeling method, which belongs to the technical field of power system digital simulation. Background technique [0002] PSCAD / EMTDC software is a powerful power system electromagnetic transient simulation analysis software, which is widely used in power system fault analysis, theoretical research and other aspects. With the construction of high-voltage DC projects, the structure of my country's power grid is becoming more and more complex, and the safe and stable operation of the power system puts forward higher requirements for power system analysis technology. In order to accurately study the dynamic behavior of the power system, it is necessary to establish a detailed, accurate simulation model consistent with the main functions of the actual control and protection system. The various control modules of the actual control and protection system are distributed on different tas...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 程璐璐柏传军卢宇肖建民
Owner NR ELECTRIC CO LTD
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