Current in a DC Line Numerical 2 - HVDC System Control - High Voltage Direct Current Transmission

TL;DR

This video explains how to calculate the DC voltage, current, power delivered, and losses in an HVDC link.

Transcript

hello everyone welcome to ekeeda platform and this is ravindra chandra here your electrical faculty and in this video i am going to talk about the numerical number two that is actually based on the current in the dc link so we will start with reading of this numerical and this numerical is actually saying that in the hvdc link okay so we have given... Read More

Key Insights

• ⚡ The HVDC link has a rectifier side voltage of 400 kilovolt and an inverter side voltage of 392 kilovolt.
• ❤️‍🩹 The calculated DC voltages at both ends are 540 kilovolt at the rectifier side and 529 kilovolt at the inverter side.
• 🍻 The current in the DC link is determined to be 1040 amperes.
• ✊ The power delivered to the inverter is calculated as 531.44 megawatts.
• 🌸 The losses in the DC link are found to be 43.33 megawatts.
• ❓ The calculations in this numerical problem involve trigonometric functions and Ohm's Law.
• 🇦🇪 The values used in the calculations are provided in kilovolt or kilowatt units.

Questions & Answers

Q: What is the purpose of this numerical problem?

This numerical problem aims to calculate the DC voltage, current, power, and losses in an HVDC link based on given parameters.

Q: How are the DC voltages calculated at both ends?

The DC voltage at the rectifier side (vdo1) is calculated using the formula 3√2 * vsl1 * 400 / 5. The DC voltage at the inverter side (vdo2) is calculated similarly but with a voltage of 392 kilovolt.

Q: How is the current in the DC link determined?

The current in the DC link is calculated by subtracting the inverter side voltage (vdo2) from the rectifier side voltage (vdo1) and dividing it by the resistance (20 ohm).

Q: What is the power delivered to the inverter?

The power delivered to the inverter is calculated by multiplying the inverter side voltage (vdo2) with the current in the DC link (1040 amperes).

Summary & Key Takeaways

• The video discusses a numerical problem related to an HVDC link delivering DC power with an AC line.

• The given values include the HVDC link voltage, angles, and DC resistance of the line.

• The video guides viewers on how to calculate the DC voltages at both ends, the current in the DC link, power delivered, and losses.