摘要
可再生能源的开发推动世界各国对电网进行升级改造,但我国西部电网无法有效接纳大规模可再生能源,为此提出以直流输电网为骨架的新一代西部电网构想。通过梳理世界发达国家在可再生能源接入下电网研究和工程现状及趋势,分析我国西部可再生能源与现有电网之间的矛盾,并阐述在不同输电需求下未来我国西部电网可能出现的模式,讨论推动电网发展的新材料、新技术、新设备。总结得出未来我国西部电网可能是以直流电网为主干,具有清洁化、电力电子化、智能化和市场化特征的新一代电网。
The upgrading of the power grid is being carried in the world under the development of renewable energy.However,China western power grid is lack of the ability to accept large-scale renewable energy. For this reason,the concept of the newgeneration power grid with DC transmission network as the foundation is proposed. This paper summarizes the status and trend of research and engineering of power grid in developed countries under the development of renewable energy,and analyzes the contradiction between renewable energy and the existing western power grid in China. M eanwhile,this paper expounds the mode of future China west power grid under different power demand levels,and discusses newmaterials,newtechnologies and equipment to promote the development of power grid. It is concluded that the future China western power grid is a newgeneration of power grid with DC power grid as the main core,which has the characteristics of clean energy,power electronization,intelligence and marketization.
引文
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