A Calculation Auxiliary Method of PSD-BPA Software

Abstract

The invention discloses a PSD-BPA software calculation assistant method, the method includes the following steps: Step S100: establish a standardized electronic form, the electronic form includes 6 sub-tables, which are respectively a power supply table, a unit parameter table, a load table, and a transformer table, line basic parameter table and line table; step S200: optimize the internal structure of the DAT file and SWI file; step S300: the PSD electric power simulation calculation auxiliary system reads the standardized electronic form, and updates the DAT file or SWI file with the sub-table data. The present invention can further optimize the standardized form structure on the basis of the PSD-BPA database modeling and maintenance method with the help of standardized electronic forms, and develop the PSD power simulation calculation auxiliary system to reduce the data package construction, maintenance and engineering calculation operation process, Standardize the calculation steps to effectively improve the calculation efficiency of power system simulation.

Description

technical field [0001] The invention relates to the technical field of power system simulation calculation, in particular to a PSD-BPA software calculation assistant method. Background technique [0002] The BPA power system simulation calculation software originated from the United States. After being introduced by the China Electric Power Research Institute, on the basis of the new version (1990 version) BPA program, after further development and improvement, a Chinese version of BPA suitable for the analysis and calculation of my country's power system has been formed. Program (hereinafter referred to as PSD-BPA program), and has been widely used in power system planning and design, dispatching and operation, teaching and research departments. PSD is Power System Department, power system department, BPA is BonnevillePower Administration, Bonneville Power Administration. [0003] PSD-BPA software has power flow calculation, electromechanical transient stability calculation...

AI Technical Summary

Problems solved by technology

[0005] 1) There is a lack of statistics on key indicators in the standardized table, and after the content is adjusted in a large range, the convergence of the new database formed is weak

In normal engineering calculations, it is necessary to correct and adjust the power grid structure, power output, and load level on the original basis. After the data is adjusted in a large range, the macro indicators such as power output and load in each area cannot be counted in the table. , it is difficult for users to obtain the adjusted real-time status of the database

When importing data packets for power flow calculation, the original balance of active and reactive power in the study area is broken, and the external interface network of the area has not been adjusted accordingly, resulting in a decline in the convergence of the newly formed data packets

[0006] 2) With the rapid development of the power grid, the diversity of system components is more abundant, and it is difficult to guarantee the accuracy of the simulation model by continuing to use the typical parameters of the components to model

In order to control the short-circuit current level, high-impedance parameter transformers are used, and small reactance is added to the neutral point of the transformer. The database transformer only uses typical parameters to model, and there is a risk of simulation calculation distortion.

[0007] 3) Switching between multiple software windows, frequent copy and paste operations

Due to the increase of calculation schemes, frequent switching between Excel table interface and PSD-BPA editing interface, repeated copy and paste operations, the error rate is also high

[0008] 4) It is difficult to standardize the calculation operation, and it is difficult to keep the data in the standardized form consistent with the data in the DAT (SWI) file

Excel table data and database data cannot be synchronized in real time, and it is difficult to leave traces of modification history, and the readability and inheritance of the database are greatly reduced

Images