期刊
PROCESSES
卷 10, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/pr10050979
关键词
offshore wind; China; HVDC; opex; economic evaluation
资金
- Science and Technology project of State Grid Corporation of China Cloud energy storage framework-based AI dispatching strategy of renewable energy integration and contingency response [5100-202199274A-0-0-00]
This study investigates the technical characteristics, application status, and economic costs of different transmission options for offshore wind power in Eastern China. The results suggest that HVAC transmission and VSC-HVDC are the preferable solutions for current offshore wind farm development, while the hybrid HVDC shows potential for future deployment.
China is taking initiative in energy transition to cope with the long-term controversy of its enormous energy consumption, aiming to use less carbon. Wind power, especially offshore wind energy, has become a prevailing alternative due to its low carbon emissions, renewability, competitiveness, and operation security. The layout of a transmission channel is a key consideration in marine project implementation. This paper investigates the technical characteristics, application status, and viable advantages of a conventional AC transmission, voltage source converter-based high-voltage direct current (VSC-HVDC) transmission, gas-insulated line (GIL) transmission, and hybrid HVDC transmission. A component-resolved evaluation model was proposed to estimate the costs to be incurred of four electrical transmission options for offshore wind power along the coast of Eastern China, with technical feasibility and economical considerations. Cost comparisons and component sensitivity analyses were developed with different transmission distances and capacities. Results suggest HVAC transmission and VSC-HVDC are the preferable solutions for present offshore wind farm development in Eastern China, and the economic potential of the hybrid HVDC makes it feasible for future deployment. Some conclusions can be applied in disparate regions across the globe.
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