摘要
基于长期边际成本的输电定价是基于未来负荷和供给增长的预想峰值,寻求确定未来投资的当前值,该投资应能满足系统中不同位置负荷的边际增长。输电网的用户支付一笔与其在输电网中位置有关的费用给服务的提供者。在一个多区域互联的电力系统中,一个区域的长期边际转运成本为由于系统内2母线间单位交易量而导致该区域的投资成本增加量。提出了一个灵敏度分析的方法来计算各个区域之间的长期边际输电成本。
Long-run marginal cost based transmission pricing seeks to determine the present value of future investments required to support a marginal increase in demand at different locations in the system, based on peak scenarios of future demand and supply growth. The users of transmission pay a charge that is geographically differentiated to the provider of the transmission service.In a multi-area interconnected power system the long-run marginal wheeling cost of an area is the change in that area's MW-mile (investment cost) due a unit change in the 'transacted power' between two buses in the power system. Transmission costs come about when change of power transport between two buses anywhere in the system causes a noticeable rearrangement of power flow in the area under study. The evaluation of marginal long-run transmission costs for each area using sensitivity analysis is proposed in the paper.
出处
《电力科学与工程》
2004年第1期1-7,共7页
Electric Power Science and Engineering
