As I recall, the turbine, serially excited DC motor, parallel excited DC motor are tree entirely different curves in load vs. rpm. A permanent magnet motor curve is somewhat similar type, bot not nearly the same. So, there is nothing to simulate with an entirely different entity. Simulate something before measuring it precisely, or obtain the data from a manufacturer? That is like putting the cart front of the horse.

Eng, I use a 50HP DC series motor to test our marine propulsion systems. The 50HP DC motor has a 300V Arm, 115V Field, using a variac with paralleled 25A diode bridge rectifiers to control the field, I can vary the amps on the 50HP load motor to put a 250A load on our 35HP EP7000 unit. At the same time, running the A2 winding through 4 power rectifiers puts back into the battery bank 198 Amps ointo the 245Ah 108V battery bank. When running an extended 60 hour test @ FL I have a 15HP Dc motor in the same configuration that I can match with a variac the exact amount of power the unit under test is consuming and can run 24/7 with out comsuming all of the battery amps till the test motor has completed it's test or fails in being smoked. If I under stand what you are trying to do is a much smaller scale. I would say forget the PM motor and just use a standard 2HP DC series wound motor for your experiment and get an AC variac and a load motor. You will need a resistor bank to dump the load into that can be monitored. Doesn't need to be but 7 Ohms, but has to be rated for 63 Amps or more and you may need to have several in series/parallel configurations. Experimentation is what will determine the best results.

Good Luck,

Keep us updated on your progress.

Jim

DC motors do not see much use now except for traction [fork-lift truck etc]. 110/120V used to be a sort of standard but 1.2 kW may be easier to get at a lower voltage. A rated speed of 225 rev/min is unlikely, except with gearbox. You may need to look for a bigger motor at a higher voltage which has a rated full-load current similar to that required at your available voltage.

At the power you want, many geared AC motors with variable speed drive should be available - these have replaced the DC motor except where only battery supply is possible.

Have you tried Globalspec, which provides CR4?

Thank you very much all for your valuable comments. The wind-turbine model will be simulated using MATLAB/Simulink and the developed turbine torque will be provided to a dc motor driver (SIMOREG 6RA70) to control the armature voltage of the motor and then get the desired torque at its output to drive the PMSG. After the PMSG, my system contains a three-phase rectifier connected to a boost converter and then to a resistive load. The MPPT algorithm will be programmed to work on the duty ratio of the boost converter. The type of the motor to be used is not important, it's okay to use an induction motor and there are many available publications do it. However, I have no idea if there is an AC driver for induction motors like the SIMOREG 6RA70, which is used for dc motors. The specifications that I mentioned are the range of simulated wind turbine curves, which were already simulated using MATLAB. If possible to explain more on using a gearbox for the dc motor, or if you have any idea on induction motor and its commercial controllers, I will be thankful. Thank you once again for your comments.

If you have an available DC motor and control, pulleys and a belt drive may solve the speed ratio.

Whatever you do, you are likely to need some purpose built couplings and/or bedplates to match motor to generator.

If you are a student, I am sure you have budget restraints.

I suggest a visit to a vehicle scrapyard with creative thoughts about old truck dynamos or whatever you might see.

Calculations on an envelope suggest the axle of a golf cart might have the right rev/min speed.

Is an engine drive feasible? Honda generator? Lawn mower? - they may seem "rough and ready", but my impression and what I hear of wind generators suggests their output is rough and ready with no hint of steadiness, predictability or concession to life of machinery.

For the separately excited motor, a rewound forklift motor would work. These can be found anywhere, and are usually series wound.

Finding a PMSG motor with the same spec will not be as easy, because you cannot simply change the magnetic field. Check with Motenergy. As you probably know, any PM motor can also be used as generator.

Gearing (pulleys, etc) could simplify things considerably.