The web-page does not exist, the link is invalid: http://www.mathworks.com/help/physmod/sps/examples_v2/wind-farm-synchronous-generator-and-full-scale-converter-type-4-average-model.html
Sorry it is outside my expertise but have you looked into MathWorks? I did find this example: Wind Farm - Synchronous Generator and Full Scale Converter (Type 4) Average Model. At least you can use it as a draft to build your own model.
The web-page does not exist, the link is invalid: http://www.mathworks.com/help/physmod/sps/examples_v2/wind-farm-synchronous-generator-and-full-scale-converter-type-4-average-model.html