In DFIG model while using Three phase transformer(two windings) block whenever I change any parameter winding sign of the transformer block goes it shows three question marks
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When I change Winding 1 connection Yg to Y and Winding 2 connection Yg to Y and units of parameter pu to SI, winding sign remains same but when i want to change any of the three parameters as my m file the winding sign of transformer block goes and instead there shows three question marks.
And also in command window its showing: "Warning: Could not evaluate MaskDisplay commands of block 'DFIGwithgridside/Three-Phase Transformer (Two Windings)1': Undefined variable "ST" or class "ST.satx"."
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Yoke Peng Leong
2018 年 5 月 17 日
I was able to change the three parameters programmatically without seeing any question marks.
>> gcb
ans =
'untitled/Three-Phase
Transformer
(Two Windings)'
>> set_param(gcb,'Winding1Connection','Y')
>> set_param(gcb,'Winding2Connection','Y')
>> set_param(gcb,'Units','SI')
Based on the error message, your MATLAB script might have changed something incorrectly or changed something else apart from the parameters.
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