The speed of the elevator on the 9th floor will generally be 1m/s and the load 1000Kg( 13 people). If the VVVF traction machine is geared, its power will usually be around 18KW, and its current will exceed 30 amps. Gearless (permanent magnet synchronous) is about 13KW, and the current is greater than 20 amps. According to the laws of physics, power P= force f times speed v is also applicable to elevators.

At present, the power of DC portal crane of passenger elevator is 100 watt.

I don't understand the first supplementary question. I don't know if this is the braking resistance of the elevator VVVF. If so, the resistance value can be between 20 and 60 ohms. The parallel resistance of DC portal crane is150ur150w, but now portal crane also uses VVVF.