Sinusoidal Pulse Width Modulation

TL;DR

This video discusses the sinusoidal pulse width modulation technique for controlling the output voltage of an inverter using a sine wave as a reference signal.

Transcript

click the Bell icon to get latest videos from akira hello friends today we are going to discuss about sinusoidal pulse width modulation technique friends as we all discuss in the earlier lectures about the pulse width modulation technique and how the technique can be used to control the output voltage of an inverter now friends let's talk about how... Read More

Key Insights

• 👻 Sinusoidal pulse width modulation is a technique that allows for precise control of the output voltage in inverters.
• 📡 By using a sine wave as a reference signal, the output voltage waveform can closely resemble the waveform of the reference signal.
• 💗 The pulse width of the reference signal determines the width of the output voltage pulses.
• 👻 The calculated average value of the output voltage allows for further analysis and prediction of the system's behavior.
• 💨 The formulas for calculating the values of a[n] and B[n] provide a way to recombine the instantaneous values of the output voltage.
• 💗 The technique of sinusoidal pulse width modulation can be applied in various applications, such as motor control and power converters.
• 🥺 The control of pulse width allows for flexible adjustment of the output voltage, leading to improved system performance.

Questions & Answers

Q: What is sinusoidal pulse width modulation?

Sinusoidal pulse width modulation is a control technique that uses a sine wave as a reference signal to vary the pulse width and control the output voltage of an inverter.

Q: How is the output voltage controlled using sinusoidal PWM?

The output voltage is controlled by comparing the reference sine wave with a triangular waveform. Depending on the relative position of the two signals, the output voltage is adjusted accordingly.

Q: How can the average value of the output voltage be calculated?

The average value of the output voltage can be calculated using the formula Vs * (summation of del M from 1 to P) / (PI * sqrt(P)).

Q: How do you calculate the values of a[n] and B[n]?

The value of a[n] is calculated using the formula summation of Vs / (n * PI) * sin(n * lambda M + LM) for M from 1 to P. The value of B[n] is calculated using a similar formula with cosines.

Summary & Key Takeaways

• Sinusoidal pulse width modulation (PWM) is a technique used to control the output voltage of an inverter by varying the pulse width of a sinusoidal reference signal.

• By comparing the reference signal with a triangular waveform, the output voltage can be controlled by adjusting the time intervals.

• The video explains how to calculate the average value, RMS value, and instantaneous value of the output voltage using different formulas.