Method and system for establishing visual deduction model, terminal and storage medium

Abstract

The invention discloses a method and a system for establishing a visual deduction model, a terminal and a storage medium, which are applied to the technical field of high-voltage direct-current simulation and fault simulation. The method includes a data acquisition step, a control and protection model engine establishment step, a communication interface establishment step, a control and protection interface establishment step, a three-dimensional scene establishment step and a converter station control and protection anti-accident visual deduction model acquisition step. According to the method and system, virtual reality and a technology based on visual logic modeling are adopted, modeling is carried out on direct current control equipment and protection equipment, and the participation degree is improved; modeling is carried out on various abnormal and fault conditions, simulation of primary and secondary equipment of the extra-high voltage converter station is realized, and the fault deduction speed and accuracy are improved; and a Fortran language module is developed in the PSCAD / EMTDC to realize interaction with a substation simulation system.

Description

technical field [0001] The invention relates to the technical field of high-voltage direct current simulation and fault simulation, in particular to a method, system, terminal and storage medium for establishing a visual deduction model. Background technique [0002] The UHV DC transmission system has the characteristics of high transmission voltage, large transmission power, easy adjustment of transmission power, and isolation between different power grids. Globalization and grid interconnection play an important role. UHVDC power transmission has problems such as complex control logic and difficult technology mastery. Once a fault occurs due to careless operation, unfamiliarity with the system or other reasons, it will cause a chain reaction in the AC and DC system, which will bring a huge challenge to dispatching and affect the stability of the system. Sex poses serious problems. After several years of operation, it has been exposed that there is insufficient experience...

AI Technical Summary

Problems solved by technology

However, RTDS is expensive, and a set of equipment is worth tens of millions. Currently, it is only used for research and design by power grids, control and protection manufacturers (NARI, XJ) and universities.

Because of its high price, it is not used for training and learning

Another tool that can be used for DC simulation and fault simulation is PSCAD / EMTDC. At present, major control and maintenance manufacturers have models that are consistent with the actual system, but they can only be used as an offline simulation model in the PSCAD environment. It cannot interact with other systems, nor does it have the function of anti-accident deduction

Because of the professionalism of the software, it cannot be used for theoretical training for substation operation and maintenance personnel

[0004] The basis of anti-accident deduction is based on accurate simulation. Many universities and scholars have introduced their own models and algorithms for DC control and protection, but most of them are only theoretical, incomplete, and only include partial functions. model of

This model is too different from the actual system to be used as the basis for anti-accident deduction

The DC converter station control and maintenance manufacturers who have mastered the actual model have added packaging to their models because of their technical confidentiality, and what is displayed in front of customers is a black box, so that users and other manufacturers cannot understand the DC control system well. internal logic

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