Power Generator Simulator

A New Way to Learn: The Power Generator Simulator

If you are new to electrical concepts, understanding how generators create power can seem tricky. Abstract ideas like sine waves, phases, and RMS voltage are much easier to grasp when you can see them in action.

That is why we have created this tool. It is designed to give you a hands on way to explore the fundamental principles of DC, single phase AC, and three phase AC power. By playing with the controls, you can build a strong and intuitive understanding of how electricity works.

What the Simulator Shows

This tool visualizes the direct relationship between a generator’s physical rotation and the electrical voltage it produces. You will be able to see:

• The difference between smooth DC power and the alternating wave of AC power.
• How a three phase system is just three single phase waves working together.
• The connection between the generator’s spinning rotor and a specific point on the waveform.
• How key values like Peak Voltage and RMS Voltage are related to the sine wave.

How to Use the Simulator

Using the simulator is easy. The screen is divided into a control panel and three visual areas: the generator, the output graph, and the calculated values. The real magic happens when you make them work together.

1. The Controls

This is where you set up your scenario.

• Source Type: This is the most important control. You can choose between DC (Direct Current), AC Single Phase, or AC Three Phase. Notice how the generator and graph change completely with each selection.
• Configuration: This selector only appears when you choose AC Three Phase. It allows you to see the difference between Wye and Delta, two common ways to wire a three phase system.
• Voltage (Peak V): This slider lets you change the peak voltage. Watch how the sine wave on the graph gets taller or shorter as you adjust it.

2. The Output Waveform Graph

This graph shows a perfect 360 degree electrical cycle. For AC sources, this is the classic sine wave.

This is the most important feature: You can click and drag the vertical red “Position” line left and right. As you drag it, you are manually rotating the generator. This is the key to understanding how a specific rotational position creates a specific voltage.

3. The Generator Visual

This picture shows a simplified model of the selected source.

• When you select an AC source, you will see a rotor with magnets inside a stator. As you drag the red position line on the graph, you will see the rotor spin in perfect sync.
• When you select DC, the visual changes to a simple symbol for a DC source, like a battery.

4. The Calculated Values

This panel does the math for you automatically.

• The top section shows the Peak, Peak to Peak, and RMS (Root Mean Square) values for the waveform you have created. RMS is the effective voltage of an AC system.
• The bottom section, labeled Instantaneous Voltage, is where things get really interesting. As you drag the red position line on the graph, this section will show you the exact voltage of each phase at that single moment in time. You can now see the numbers that make up the graph!

Try It Yourself

Here is a simple exercise to get started.

1. Select AC Three Phase from the Source Type menu.
2. Look at the graph. You can see the three different colored sine waves.
3. Click and drag the red position line to the very top of the first wave (at the 90 degree mark).
4. Now look at the Instantaneous Voltage display. You will see that Phase 1 is at its peak positive voltage, while Phases 2 and 3 are at a negative voltage.

By experimenting like this, you will quickly build a solid foundation for these core electrical concepts. Enjoy exploring