How to use the gearbox model and whether the Dual Motor system can be implemented

Yongjun

Hi.
Looking at the GearBox model offered by PSIM, there is an additional Pin up-down on Shaft 1 and 2 Pin, what is this for?
I don't think it's used in general situations, so I looked up an example and saw that Zener diode and M/E Interface Block are used together in the Wind generation example.

I think it gives a reference value or a minimum value condition for the speed controlled within GearBox, is this the right use?
I want to know the exact use.

And I wonder if it is possible to implement Dual Motor System.
I think it's possible enough, but I'm wondering if there's a simple example of this.

Rhonda_20369

1. the GearBox model offered by PSIM, there is an additional Pin up-down on Shaft 1 and 2 Pin, what is this for?

A real mechanical gear box contains 2 or more shafts. All shafts are connected with gears of different number of teeth. The rotation of one shaft is transferred to other shafts via the gears. The ratio of rotation speed between shafts are determined by the number of gear teeth.

In PSIM's Gear Box model, there are 2 shafts. Each shaft has 2 terminals. You may connect mechanical motion input to one terminal and connect mechanical load to any or all other 3 terminals.

 

2.  Zener diode and M/E Interface Block are used together in the Wind generation example.

The Zener diode is used to imitate the rotation speed clamp. The M/E interface is to convert the mechanical variables to electrical ones.

Here is a short video tutorial:

Learn to Use the Mechanical-Electrical Interface Block

 

3.  the speed controlled within GearBox, is this the right use?

Gear box has no control functions within. It only transfers the rotation speed from one shaft to the other shaft.

It is similar to a transformer in an electrical circuit - transfers the v-i from one side to the other side, but it does not control.

 

4.  if it is possible to implement Dual Motor System.

Yes. You may implement a dual motor system.

In the Wind Power System examples, you may replace the wind turbine with a motor, and keep the other electrical machine in the system.