Jinliang He: In the future, the ultra-high voltage (UHV) technology
Jinliang He, head of the High Voltage Research Institute of Tsinghua University (China), co-authored the second annual report "10 Breakthrough Ideas in Energy for the Next
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''A bullet train for power'': China''s ultra-high-voltage
5 天之前· But Huaxia Energy, a Chinese industry website, reported in August 2023 that the country had spent 1.6 trillion yuan (£173bn/$222bn) on UHV lines, which included 33 already in operation and 38
6 FAQs about [Energy storage and uhv]
What are the advantages and disadvantages of UHV power transmission?
Compared with high voltage (HV) transmission technology, UHV power transmission has the advantages of large transmission capacity, long transmission distance, and low line loss (Liu 2015). The Jindongnan-Nanyang-Jingmen UHV transmission line is the first UHV alternating current transmission project in China.
What is the environmental value of UHV transmission grids?
The environmental value of UHV transmission grids depends largely on the proportion of renewable energy transmitted. The government should accelerate the development of renewable energy, enhance the grid connection capacity of renewable energy, and ensure the safe operation of the power grid.
Why is UHV technology important for energy allocation in large areas?
It is concluded thatChina obtained mature experience in developing, constructing, and operating UHVsystems and successfully realised long-distance, large-capacity powertransmission, and the UHV power transmission technology has become an importantmeasure for energy allocation in large areas.
Do UHV projects promote inter-regional power transmission?
UHV projects promote inter-regional power transmission but increase power-sending cities’ energy consumption (Tan et al. 2022). That is, energy consumption and carbon emissions are transferred between power-sending and receiving cities from the perspective of UHV power transmission.
What is UHV power transmission?
UHV refers to voltage levels with direct current over ±800 kV and alternating current over ±1000 kV. Compared with high voltage (HV) transmission technology, UHV power transmission has the advantages of large transmission capacity, long transmission distance, and low line loss (Liu 2015).
How do UHV projects work?
Power is transmitted through UHV projects from cities with plentiful power resources to those with big power consumption gap, such as Beijing, Tianjin, or other cities. They change the energy consumption pattern between cities and play a key role in solving the power shortage, which may have a potential impact on regional carbon emissions.