matlab simulation

hi all,

I am trying to simulate something in matlab.

Problem:


66kv line coming to the local substation of a company. From there, through different stepdown transformers, finally from a 3.3kv/440v transformer, is fed to all the shops in the company through separate feeders in addition to a direct 3.3 kv to testing shop. Considering this testing shop and another shop (consists of a purely resistive heating element, main load in that shop). So, the problem is while trying to control this heating element using a thyristor, its getting affected in the testing shop. ie, unwanted signals are coming in the supply (obviously due to the presence of thyristor)

My aim is to view the problem in testing shop, trying to resolve it by using a passive filter.

PS: 3 phase supply