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在以促进发电和零售竞争为主要特征的电力市场中 ,输电系统由于其固有的特征仍然保持垄断运行。但作为实现竞争的场所 ,输电系统必须对市场参与者开放并提供无歧视的服务。这样 ,如何对输电服务定价就成为一个十分重要的问题。文中首先简要论述了现有的输电定价机制以及国际上几个有代表性的电力市场所采用的方法 ,在此基础上结合三峡电力系统的特点 ,提出了三峡电力市场输电定价的框架及其实现方法。然后 ,对输电系统运行中的另一个重要问题即输电阻塞的管理和定价做了简要论述 ,并介绍了目前运行的电力市场所采用的一些方法。最后 ,对三峡电力市场中的阻塞管理与阻塞电价做了初步研究 ,提出了建议。
In the electricity market, which is characterized by the promotion of power generation and retail competition, transmission systems remain monopolized due to their inherent characteristics. However, as a venue for competition, transmission systems must be open to market participants and provide non-discriminatory services. In this way, how to price transmission services has become a very important issue. Firstly, the paper briefly discusses the existing transmission pricing mechanism and the methods adopted by several representative international electricity markets. Based on this, combined with the characteristics of the Three Gorges Power System, this paper presents the framework and implementation of transmission pricing in the Three Gorges Power Market method. Then, another important issue in the operation of transmission system, namely the management and pricing of transmission congestion, is briefly discussed. Some methods used in the currently running electricity market are introduced. Finally, a preliminary study of congestion management and congestion pricing in the Three Gorges electricity market was made and suggestions were put forward.