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实施峰谷分时电价可以改变用户电力负荷时间分布,降低电网负荷峰谷差即削峰填谷,由此可以减少高峰时段高煤耗率机组上网发电的机率,从而节约发电煤炭消耗量.首先引入峰谷分时电量需求价格弹性矩阵,在此基础上构建用户端峰谷分时电价差率优化模型;然后,根据节能发电调度原则,构造高峰时段发电端节煤影响分析模型;最后,通过算例对上述模型进行分析,结果表明,优化用户端峰谷电价差率对发电端节能具有显著效果.
The implementation of time-of-use price-peak-valley pricing can change the distribution of electricity load time of users and reduce the peak-load difference of power grid peak-load difference, thus reducing the probability of high-power consumption unit generating electricity during peak hours and saving coal consumption. Then, according to the principles of energy-saving power generation and dispatching, the analysis model of coal-saving effect during power generation at peak period is constructed. Finally, through the calculation of the price elastic matrix of peak-valley time-share electricity demand, An example is given to analyze the above model. The results show that optimizing the peak-to-trough price difference on the customer side has a significant effect on energy saving at the power generation end.