随着新型电力系统建设的不断推进，西北地区新能源消纳能力不足与东部地区电力供应短缺的问题日益突出。因此，将西北地区富余的新能源电力输送至东部发达地区成为实现跨区域能源平衡的有效手段。针对远距离、大容量的新能源外送需求，提出了一种电氢协同的新能源外送方式。首先，构建了包含电能输送与氢能输送通道的新能源外送系统框架；其次，从新能源外送过程中的源端、传输端和负荷端出发，考虑设备的成本与损耗因素，并设置供需平衡、损耗、容量以及外送时间的约束条件，以最小化总成本和总损耗为优化目标，构建了电氢协同的新能源外送规划模型；最后，以甘肃地区4个新能源外送工程为例进行仿真分析。结果表明，采用电氢协同的外送规划方案使得系统总成本降低了5.72%~7.74%，验证了所提模型的有效性与合理性。

With the continuous advancement in the construction of new power systems， the issues related to insufficient new energy consumption capacity in Northwest China and electricity supply shortages in eastern regions have become increasingly prominent. Therefore， transporting surplus new energy from Northwest China to developed eastern regions has emerged as an effective means to achieve inter-regional energy balance. In response to the demand for long-distance and large-capacity new energy delivery， this paper proposes a collaborative approach utilizing both electricity and hydrogen for new energy transmission. First， we establish a framework for a new energy delivery system that encompasses both electric power transmission and hydrogen transport channels. Next， considering cost and loss factors associated with equipment at the source end， transmission end， and load end during the new energy delivery process， while imposing constraints on supply-demand balance， losses incurred during transportation capacity limits as well as delivery time， we formulate an optimization model aimed at minimizing total costs and losses within this collaborative planning context. Finally， we conduct simulation analyses using four cases from Gansu Province’s new energy delivery projects. The results indicate that implementing this collaborative planning scheme reduces overall system costs by approximately 5.72% to 7.74%， thereby validating the effectiveness and rationality of the proposed model.