Thx. What I did was a zwift warmup workout starting at 100W and ending at 220W in 20min (so this is 6w a minute). I got my info from this topic Muscle Oxygen Training: Best practices for Runalyze and DFA a1 thresholds.
*Suggested Runalyze ramp:
Between 5 and 10w per minute rise over 10 to 20 minutes. This can be done manually as “step” intervals (130, 160, 190, 210w …etc) with a change every 3 minutes or just use Zwift to create a incremental ramp (example - 130 to 230w over 20 minutes = 5w/min)."
So I did the second approach. Maybe I can try the first approach also. What increase did you use? 30W per 6minute? But normally that is the same dan 5w/min? I will try again 
And longer then 20min