发电装机容量市场适当价格水平的确定

作为保证发电容量充裕性进而提高供电可靠性的一个重要手段,装机容量责任模式已被多个正在实际运营的电力市场所采用。在这些市场中,所有负荷服务实体(LSE)必须满足监管机构或市场管理机构规定的容量责任要求。为便于LSE和发电公司之间就装机容量进行交易,在一些实际运营的电力市场中专门建立了发电装机容量市场。发电装机容量市场的价格水平与吸引发电投资有很大关系,这样研究能够诱导充裕发电容量的装机容量市场适当的价格水平就成为电力市场设计和运营阶段需要考虑的一个重要的问题。通过分析发电公司在不同装机容量价格水平下的投标容量分配策略和LSE的装机容量购买策略,文中对这一问题进行了较为系统的研究。构造了一种新的研究框架,发展了相应的数学模型,提出了求解方法,最后用仿真算例进行了说明。

Determination of Appropriate Price Level in Installed Capacity Market

As one of the most important approaches for ensuring adequate generation capacity and hence the reliability of electricity supply, the installed capacity obligation mechanism is employed in some operating electricity markets by imposing such an obligation on all load serving entities (LSEs). To facilitate the enforcement of the obligation, an installed capacity market is established for the LSEs and generation companies to trade installed capacity. In this paper, the optimal allocation strategies of generation capacity for generation companies between two electricity markets under different levels of installed capacity prices as well as the optimal purchasing strategies of LSKs are first examined, and on this basis a new framework is developed to determine an appropriate level of generation installed capacity price for ensuring generation capacity adequacy. Finally, the proposed method is illustrated by a numerical example.