Motor Simulation in Maxwell

The problem is that my results no matter what the number of turns or efficiency are, are nothing like what they supposed to, for example the starting torque is so much lower and motor reaches the synchronous speed much much faster about 10 to 5 times faster than it should.

Well, the amount of torque, τ, you get would be proportional to the field strength or amperes x turns

(τ = k NI).

The acceleration, α, is proportional to torque, τ, and inversely proportional to the moment of inertia of the rotor, I, assuming that there is no load on the motor.

(α = τ / I)

(The moment of inertia, I, depends on the mass of the rotor and its distribution about the axis of rotation.)

So it seems to me that if you want to reproduce the plots, you would have to set the ampere-turns to get the matching torque and then set the moment of inertia of the rotor to get the same acceleration.

The problem of <...motor reaches the synchronous speed much much faster about 10 to 5 times faster than it should...> depends upon what it is turning. If it is connected to something with a 'gurt big huffin' flywheel', then acceleration times will be considerably longer.

As details of the driven equipment have been withheld from the forum, that's about all one might say on the topic.