需求侧竞价对高峰电价影响的成本效益分析

Influence of demand side bidding on peak load price based on cost analysis

建立了系统高峰时段单独由调峰火电机组担任调峰任务时系统电价的数学模型,建立了需求侧竞价参与系统调峰时综合考虑用户类型、提前通知时间、负荷恢复时间和缺电电量等因素下的综合缺电成本模型,得到需求侧竞价参与系统调峰时系统电价的数学模型。对二者进行比较可知,当需求侧竞价参与调峰时,可避免运行成本较高的调峰机组投入,而且其调节方式灵活,没有最低出力限制,对缓解系统高峰时段可能出现的电力系统阻塞现象有抑制作用,因此需求侧竞价参与调峰时可以降低系统高峰电价,缓解供电不足的矛盾,提高电力系统运行的可靠性。

The model of peak load price was built when there were only fossil power units to regulate peak load. The model of power interruption integrate loss was built which took several factors into consideration such as power user types, the time of advanced notice, the time of recovery and the amount of power interruption, so the model of peak load price is based on it when demand side bidding joins in peak load regulation. After comparing the two models, it is pointed that demand side bidding can replace fossil power units with high operation cost to regulate peak load, which is flexible, no minimal capacity limit and useful to mitigate congestion of peak load. If demand side bidding joins in peak load regulation, the peak load price may fall down distinctly.