Method for calculating power flow of power system containing IPFC through MATLAB and BPA combined simulation

Abstract

The invention discloses a method for calculating the power flow of a power system containing IPFC through MATLAB and BPA combined simulation, and belongs to the technical field of power system operation analysis and simulation. The specific process of the method is as follows: IPFC (Intelligent Power Factor Correction) solution calculation is carried out in MATLAB (Matrix Laboratory); power grid power flow calculation is carried out in a BPA; interaction of two kinds of simulation software is carried out through a data exchange interface compiled in MATLAB; the data exchange interface reads input information from a PFO file; the input information is transmitted to an IPFC calculation program in the MATLAB to execute the solution calculation of the IPFC; and after calculation is completed,the IPFC calculation program transmits the output information to the data exchange interface, writes the output information into a corresponding position in a DAT file of the BPA through the data exchange interface, and then calls a power flow calculation program of the BPA by using the data exchange interface to perform power flow calculation on the DAT file to generate a new PFO file. Accordingto the method, the power flow calculation of a large power grid containing an IPFC can be conveniently and accurately realized, and great convenience is brought to the evaluation of the application value and the control potential of the IPFC in an actual power grid.

Description

technical field [0001] The invention relates to a method for jointly simulating and calculating the power flow of an IPFC-containing power system by MATLAB and BPA (power system analysis software), and belongs to the technical field of power system operation analysis and simulation. Background technique [0002] The Interline Power Flow Controller (IPFC), like the Unified Power Flow Controller (UPFC), is a typical representative of the third-generation FACTS (Flexible AC Transmission System) devices. Compared with UPFC, IPFC is a more comprehensive and powerful FACTS control device. On the one hand, it can not only directly control the power flow on the transmission line installed in the series part like UPFC, but also realize the power exchange between lines, thereby controlling the power flow between different lines; on the other hand, UPFC is controlling the power flow of its own installed lines Occasionally, it may cause the power flow of adjacent heavy-loaded lines to ...

AI Technical Summary

Problems solved by technology

At present, the power system analysis software (PSD-BPA, hereinafter referred to as BPA) has been widely used in my country, and it is one of the important tools for power system analysis and calculation in my country. All provincial grid companies have detailed BPA power grid data, which can be conveniently used in BPA Perform large-scale power grid power flow calculations, but the simulation model of IPFC has not yet been established, and the simulation of related control functions of IPFC cannot be realized. This will bring great difficulties to the evaluation of the application value and control potential of IPFC in the actual power grid. The difficulty of the pre-planning work of the IPFC project seriously affects the accuracy of the planning results

[0004] MATLAB / Simulink can accurately model IPFC, but the data conversion and grid equivalent are very complicated, which makes it difficult for MATLAB to be applied to the calculation and analysis of actual large power grids

Therefore, it is currently difficult to realize the power flow calculation of large power grids including IPFC, which makes it difficult for operation planners to evaluate the actual application value of IPFC and cannot promote the development of new technologies

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