Complete Equivalent Circuit of HVDC link - Analysis of the Bridge Rectifier - HVDC Transmission

TL;DR

This video discusses the complete equivalent circuit of HV DC link, combining the equivalent circuits of the rectifier and inverter.

Transcript

hello everyone welcome to igita platform and this is ravinjian here your electrical faculty and in this video i'm going to talk about the complete equivalent circuit of hv dc link so let's start the video one by one we will talk about the different points so let's start the combining the equivalent circuit of the rectifier and the inverter the tota... Read More

Key Insights

• 🍻 The total equivalent circuit of HV DC link combines the equivalent circuits of the rectifier and inverter.
• 🔺 Voltage values on the rectifier and inverter sides vary based on parameters like firing angle and extinction angle.
• 😀 RC1, RC2, and R represent resistances in the equivalent circuit.
• 📁 The direct current (Id) can be calculated using the potential difference and resistance.

Questions & Answers

Q: What is the purpose of combining the equivalent circuits of the rectifier and inverter?

Combining the equivalent circuits allows us to obtain the total equivalent circuit of the HV DC link, which is essential for analyzing and solving problems related to HV DC systems.

Q: How do voltage values vary on the rectifier and inverter sides?

The voltage value on the rectifier side, Vd1, is represented by Vdo1 times cos(alpha), while on the inverter side, Vd2, it is represented by Vdo2 times cos(gamma). The values of alpha and gamma depend on the specific conditions of the system.

Q: What are RC1, RC2, and R in the equivalent circuit?

RC1 represents the equivalent resistance of the rectifier, RC2 represents the equivalent resistance of the inverter, and R represents the resistance of the transmission. These components are included in the total equivalent circuit of the HV DC link.

Q: How can the direct current (Id) be calculated?

The direct current, Id, can be calculated by subtracting Vd2 from Vd1 and dividing the result by the resistance, R. It can also be represented using the cosine values of Vdo1 and Vdo2 (cos(alpha) and cos(gamma)).

Summary & Key Takeaways

• The video explains how to combine the equivalent circuits of the rectifier and inverter to obtain the total equivalent circuit of the HV DC link.

• Voltage values on the rectifier and inverter sides are represented by Vd1 and Vd2 respectively, and they vary based on parameters like firing angle and extinction angle.

• The direct current, represented by Id, can be calculated using the potential difference between Vd1 and Vd2 divided by the resistance.