Transformation matrix-based transformer three-phase model building method
A technology for model establishment and transformation matrix, applied in instruments, special data processing applications, electrical digital data processing, etc., which can solve the problems of error-prone, complicated programming, time-consuming and labor-intensive three-phase models, etc.
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[0239] The derivation process of the transformer three-phase model of the present invention will be further described below in conjunction with the accompanying drawings by taking the three-phase transformer connected with Yyn0 and Yyn6 as an example.
[0240] (1) Derivation of transformer three-phase model for Yyn0 connection
[0241] according to Figure 8 and Figure 9 The transformation matrix-based transformer three-phase model establishment method is shown to obtain Figure 7 (a) Transformer three-phase model with Yyn0 connection shown. Input transformer primary side connection mode k 1 is Y, the transformation ratio is α; the connection mode of the secondary winding is k 2 is yn, transformation ratio is β; transformer connection group label k 3 is 0.
[0242] As a result of the operation, the voltage transformation matrix and current transformation matrix of the three-phase transformer connected to Yyn0 are:
[0243]
[0244]
[0245] Get the nodal admittan...
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