A Method of Transforming Transformer Nameplate Parameters into Power Flow Data Parameters
A power flow data and transformer technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of inaccurate transformer loss, inaccurate calculation of equivalent resistance, and non-convergence of the power flow that should be able to converge. Achieve the effect of improving accuracy and reliability
Active Publication Date: 2017-09-01
STATE GRID CORP OF CHINA +1
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Problems solved by technology
In addition, according to the different transformer models used in the simulation calculation program, correctly calculate the nameplate parameters and fill in the parameters corresponding to the transformer model, this process is extremely error-prone
However, power transformers are widely distributed in the power system, and their reactance values are filled incorrectly, which will affect the distribution of reactive power flows, and even cause the flows that should be able to converge not to converge.
The inaccurate calculation of the equivalent resistance caused by copper loss in the transformer will lead to inaccurate calculation of the loss of the transformer
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[0063] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0064] Power system operation, planning and design departments often use power system simulation calculation software to calculate the safety and stability of the operating grid, and the rationality and feasibility of planning and designing the grid. Power flow calculation is one of the basic simulation calculations, and the accuracy of the original data of power flow calculation is the most important factor to ensure the correct calculation results. Generators, transformers, lines, reactive power compensation equipment, loads, etc. constitute the original power flow calculation files, among which there are many types of calculation models and calculation parameters involved in the power flow calculation parameters of transformer equipment, which is different from the existing domestic mainstream PSD-PFNT and Compared with the method of calculating the power ...
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The invention provides a method for converting transformer nameplate parameters to power flow data parameters. The transformer nameplate parameters are managed in a standardized mode by designing a transformer nameplate parameter list and a transformer power flow data parameter list and the transformer nameplate parameters are converted into the power flow data parameters according to PSD-PFNT and PSASP. By means of the method, the transformer nameplate parameters can be conveniently converted to be in the data format needed by PSD-PFNT and PSASP transformer models and the transformer nameplate parameters and the power flow data parameters are stored into a database. According to practical application, the method greatly improves the accuracy rate and the efficiency at which simulation computation workers prepare the transformer power flow data parameters.
Description
technical field [0001] The invention relates to the field of power system simulation calculation, in particular to a method for converting transformer nameplate parameters into power flow data parameters. Background technique [0002] my country's power system has entered the era of large power grids, ultra-high voltage, ultra-high voltage, large energy bases, and long-distance power transmission. initial formation. [0003] With the development of national AC, DC, EHV, and UHV, and the implementation of networking projects, the scale of data used for power system simulation calculations is increasing, and the update and exchange of calculation data between network provinces has become more frequent and relevant. Important, manual exchange is prone to errors and consumes a lot of manpower and time. Operation and scheduling departments use planning and design data or planning and design departments use existing operation mode data often need to be completed through manual co...
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IPC IPC(8): G06F17/50
Inventor 刘丽平汤涌易俊赵兵王琦刘明松林伟芳王建明贾俊川
Owner STATE GRID CORP OF CHINA