利用特高压输电技术提高全球能源使用效率

为探讨基于时差实现全球范围内电力负荷削峰填谷的可行性,研究了位于北纬45°附近不同时区的中国济南、欧洲法国、北美加利福尼亚3个区域电网的日负荷需求数据;基于不同时区区域电网的用电负荷特性,计算了通过特高压输电技术实现北美、欧洲、中国三大区域电网互联的可行性和基于区域时差实现削峰填谷的经济效益.研究结果表明:时差导致了人类自然生产和生活规律的差异,不同时区电力负荷需求的波动具有很强的互补性,利用这种互补性实现全球范围内电力负荷的削峰填谷是可行的:利用特高压输电技术实现不同区域电网互联的综合经济效益优于建设抽水蓄能电站.

To improve utilization efficiency of global energy resources through UHV power transmission technology

To discuss the feasibility of achieving peak load leveling globally based upon time difference,the daily load demand datum of three regional power systems located in different time zones near 45° of north latitude,including Jinan of China,France and California in North America,was investigated.On the basis of electrical load characteristics of regional power network in different time zones,the feasibility and the economic benefit of interconnecting the three regional power grids through UHV power transmission were analyzed.Analysis results show that,the fluctuation of power consumption load between different time zones is strongly complementary due to natural regularity of human activities,peak load leveling on the global scale can be achieved based on the complementary characteristic,and the overall economic benefit of UHV power transmission has an advantage over construction of pumped storage power station.