Ineffective reaction of STATCOM on wind farm

Hello everyone,

im building up a wind farm in phasors domain(as seen in pictures). For fault study i tried every parameters on statcom and also i chanced the design of farm only with 1 wind turbine instead 4 but i cant get effective impact of statcom on bus voltage values or wind turbine values.

I tried also voltage sag on programmable voltage source it worked with that but external fault gives almost same results with or without statcom.

Any ideas for that? Thanks.