The Italian insisted that his aim was to bring Champions League success to Stamford Bridge after winning the trophy four times, twice as a player and twice as a manager.
Ancelotti, 50 later this month, was formerly with Reggiana, Parma, Juventus and AC Milan and although he insisted his English needed improving, his interview on Chelsea TV was delivered with impressive coherence.
The new Chelsea manager said: 'Milan for me was a great experience, for five years I played with a great team and we won a lot of success.
'But now I think it's time for a change and Chelsea, for me, was a great opportunity, a great thing to do, a new experience.'
Of his command of English he added: 'When we start the season I will speak well because it's important for me to speak with the players, the team, the assistants and and all the others who will work with me.'
Ancelotti has targeted Europe for success, adding: 'For me the Champions League is a beautiful sensation because when I played I won it twice, in 1989 and 1990, and those were fantastic moments.
'It was the same when I was a coach, in 2003 and 2007. The Champions League for me is the best competition in the world and we all want to win it.
'Chelsea has a great record, with five semi-finals in six years, and that is a beautiful record. I hope we can this time win it.'
Ancelotti admitted he spoke with former Chelsea striker Andrei Shevchenko for advice, and that he had been impressed with the club's training facilities in Cobham, Surrey.
And he promised that he would bring his own ideas to the training ground, adding: 'I like to be close with the players and the company, I like to speak with people and I believe in team work.
'The most important thing is to create a group together, to build a dream. It is important we have a strong organisation, this is the right way to success. The objective now is the Champions League, the Premier League, the FA Cup and the Carling Cup. All is not easy but the right way is to create a group of people that work well together.'