Software interface for automatically generating simulation calculation model of PSCAD power system

Abstract

The invention relates to the technical field of simulation calculation of a power system, in particular to a software interface for automatically generating a simulation calculation model of a power system computer aided design (PSCAD) power system. The software interface comprises a power system-geographic information system conversion module used for resolving a geographic information database,a power system-energy management system conversion module used for resolving an energy management database, a graphical simulation file used for writing a PSCAD simulation calculation model, and a simulation model automatic generation module used for automatically generating a simulation calculation model. In the software interface, the conventional various data resources of electric utilities isfully utilized, so that the automatic compilation of the PSCAD simulation calculation model is realized, the compilation process of the simulation calculation model is greatly simplified, the compilation difficulty of the model is reduced, the compilation efficiency of the model is greatly improved, and the accuracy of the model is improved, wherein the generated simulation calculation model not only can be used for the conventional power flow calculation and steady-state analysis but also can be used for various fields such as power quality evaluation, fault analysis and the like.

Description

technical field [0001] The invention relates to the technical field of power system simulation calculation, in particular to a system for automatically generating a PSCAD power system simulation calculation model. Background technique [0002] Simulation calculation is an important technical means necessary for power system design planning, operation scheduling and accident analysis. Accurate and applicable simulation calculation model is the premise and basis for effective simulation calculation. PSCAD software is a fast, accurate and easy-to-use power system simulator for various power system design and verification, and can be widely used in power quality research, power electronic design, distributed generation and transmission planning, etc. It is a common analysis tool in the field of transient simulation. [0003] The continuous expansion of the grid scale, the continuous increase in the number of system components, and the continuous increase in the difficulty of so...

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Problems solved by technology

[0003] The continuous expansion of the scale of the power grid, the continuous increase in the number of system components, and the increasing difficulty of solving problems in simulation calculations have all increased the complexity of simulation calculation model compilation, and also put forward higher requirements for the professional skills of model compilers.

The current manual compilation of simulation calculation models can no longer adapt to this new situation, and even cannot complete the task of model compilation

[0004] At present, most of the simulation calculation models are still compiled manually by operators. Due to the large network scale and the large number of components, the workload of model compilation is heavy, there are many repetitive tasks, the probability of error is high, and it is difficult to find

At the same time, manual compilation is an offline compilation method, which cannot reflect the real-time network operation status, and the resulting model has poor timeliness and low reliability

The power system simulation calculation also adds multiple tasks including power quality analysis and evaluation, fault analysis, etc. It is very difficult and unrealistic to rely on the operators of the power department to complete this kind of model compilation

[0005] Regarding the above phenomena, although there are similar design methods that automatically complete simulation calculations based on network topology and component parameters, the algorithms used in the simulation calculation process are self-developed, with extremely limited functions, and their reliability is significantly lower than that of PSCAD. widely used simulation calculation software; or when generating the simulation calculation model, the compiler still needs to manually collect the necessary data and convert it into a specific format, which also has the problems of heavy workload and high error probability

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