Radial and ill-conditioned power flow solution?

[bailofwZ]

I'm searching for the ill-conditioned(High R/X ratio) power flow solution to analyze radial ship power scheme. Is there any method you suggest?

Note that: My system has 4 PV bus and 20 PQ bus.

 

[magoo2]

I believe Allen J. Wood covered this in his book "Power Generation, Operation and Control". I don't have a copy but I believe it was published around 1983. We adopted his technique for a secondary network which had a high R/X ratio and conventional load flow techniques didn't work too well.