Language
Country/Area
No result found
he hero behind "High Voltage DC": From Sweden to China, how technological development leads the global power pattern
In the history of global power transmission, the rise of high-voltage direct current (HVDC) technology marks the beginning of a new era. Compared with traditional alternating current (AC) systems, HVDC uses direct current for power transmission, thus performing well in long-distance transmission. This technology was initially promoted by Swedish ACEA and German technology in the 1930s. Over time, HVDC not only changed the global power pattern, but also inspired various countries to pursue technological innovation and renewable energy.
Advantages of HVDC technology
The advantages of high-voltage DC technology are mainly reflected in its low energy loss and efficient long-distance transmission capabilities. HVDC systems generally require the use of fewer conductors and can significantly reduce power losses compared to AC systems of the same distance.
"HVDC makes energy transmission more efficient, especially when connecting to power grids of different frequencies, improving the stability of the power system."
Early HVDC applications
Early commercial applications of HVDC technology began in 1951, when the Soviet Union established an HVDC connection between Moscow and Kahira. Later in 1954, a 100kV system was established between Sweden and Gotland. These early applications played an important role in inspiring the subsequent development of large-scale systems.
The rise of China’s high-voltage DC technology
After entering the 21st century, China's investment and innovation in HVDC technology have grown rapidly. Especially in 2019, China gave birth to the world's longest HVDC connection. This is not only a breakthrough in power transmission, but also a milestone in global energy transmission technology.
"China's HVDC projects are leading the future of global energy and challenging the existing power transmission model."
Technological evolution and future prospects
With the development of power transmission technology, from early mercury arc valves to later thyristor control devices, the reliability and economy of HVDC systems have gradually improved. Today, with the emergence of more efficient power electronics and multi-layer modular converters, HVDC technology has been widely used around the world.
"The future of HVDC lies in its ability to better meet changing market demands and the integration of renewable energy."
Changes in the global electricity pattern
High-voltage DC technology is not only successful in China, but also expanding its influence in Europe, South America and other regions. As the demand for renewable energy increases, HVDC provides a better way to integrate resources such as wind and solar energy, further promoting power trading and cooperation between countries.
The bridge between HVDC and green energy
As the world seeks to reduce its carbon footprint, HVDC is an important tool to achieve this mission. By combining renewable energy generation with HVDC technology, countries can continuously improve their energy efficiency and effectively build cross-border power networks.
Conclusion: Where is the future?
Advances in high-voltage DC technology have had a profound impact on the global power pattern, promoting the integration of renewable energy and power trading. However, as technology evolves, we can't help but think about how future power transmission technology should develop to adapt to the changing global environment and market demands?
