The 2011 champion secured her position in the women's final, which gets underway on Saturday, with a 7-6(6) 6-1 victory.
"It's great, it was a tough match mentally because Lucie is a great friend of mine," Kvitova told BBC Radio 5 live. "I am just happy that I won.
"I tried to be focused from the start of the second set and I managed to break her service in the first game and just kept it going and I served well.
"I am just very emotional from this match, but I have two days before the final to focus but I know how it feels to lift that trophy so I will try my best to do it again."