How to Generate xInitial

Dear all, Many thanks in advance for your assistance on this matter.

During simulating on my thesis, I've faced with challenges regarding to simulate the model in steady sate, I need to generate the 'xInitial'.

However, I've tried it to refer many documents, but no one talk about this.

Could you please tell me in details about it that how could I reach generate 'xInitial' properly for new model?