Question 1

How does HVDC work?

Accepted Answer

At the core of this technology are ultra high performance converter stations which transform high voltage AC into DC. The electricity is then transported as Direct Current via high voltage transmission lines over distances of up to several thousands of kms.

Question 2

What is HVDC used for?

Accepted Answer

High Voltage Direct Current (HVDC) systems enable utilities to move more power further, efficiently integrate renewables, interconnect grids, and improve network performance.

Question 3

What is VSC?

Accepted Answer

Voltage Source Converter is a newer technology based on power transistors with a reduced footprint compared to LCC technology. VSC is an ideal technology for submarine/land cable interconnection, integrating renewables, offshore and urban infeed applications.

Question 4

What is LCC?

Accepted Answer

Line Commutated Converters Line Commutated Converter is a mature cost effective HVDC technology based on thyristor power semiconductors, which enables the bulk transfer of power of up to 8 GW with low losses and inherent DC fault protection.

Question 5

What is eLumina?

Accepted Answer

GE’s latest fully-digital industrial HVDC Control System is designed to enable utilities to efficiently move more power further with a higher degree of controllability, thus improving power quality and maximizing overall grid performance