May 1st Gold week is coming...

Time waits nobody,tomorrow is May 1st international worker's day,which is a gold week in china.We got total a week's rest.Most of my friends left for tour,some went home,but for me,I felt so disappointed in this May 1st eve.About two weeks ago,I decide to using ADRC in my UPFC system,just hope this would get my paper come out.So the first step I tried to apply ADRC in 3-phase boost-type PWM rectifier.After spending a whole day to recover my ADRC knowledge,I did get the two PI current controller replaced by two one-order ADRC,it does work but not so nice.Today,I tried to replace the outer voltage loop with ADRC,but I find it's hard to get ESO model.From the voltage equation,it has a really bizarre form,which I had never notice before.Because if we using PI,the real first step is to get the non-linear equations set linearized.No other effective methods I know but to create the small signal model.If we get the approximated linearized model,we could write out the system transfer function,once this step is done,half design work finished.But for ADRC,should I still using the small signal model?I do not know.ADRC is nonlinear controller,most cases I saw before is to use ADRC to get the state-equation set controlled directly,no linearization process.My dilemma is:it is impossible to get outer voltage loop ESO equation unless get the equation linearized first.Why should I use ADRC if I get the equation linearized?Big joke...

I am not going to complain about this disappointing holiday,I am destined to have to work in this 7-day holiday.The most I should complain is that I wasted nearly a week to get involved writing the 863 application for our boss.I am really tired of these fucking things since last time that helping to make the PPT of National Defence Foundation Suggestion Application.