State Grid Ningbo Yinzhou Power Supply Company, Ningbo 315000, China.
College of Electrical and Information Engineering, Hunan University, Changsha 410082, China.
Sensors (Basel). 2022 Sep 21;22(19):7173. doi: 10.3390/s22197173.
Application of sensors in the smart grid has promoted the development of demand side management (DSM). However, the incentives of DSM such as peak-valley time-of-use (TOU) price will change the load pattern in the future; the substation capacity sizing will be further influenced accordingly. This paper proposes a substation capacity sizing method in distribution network considering DSM and establishes a peak-valley TOU pricing method based on the cost-benefit analysis of each participant in the TOU price. Compared with the conventional fixed peak-valley ratio, a dynamic division method is proposed to calculate the optimal pull-off ratio for the TOU pricing. By considering the proposed TOU pricing method, a substation capacity sizing model for the distribution network is further proposed. Finally, the economic benefits of the two substation capacity sizing schemes are compared and evaluated according to the selected economic indicators. The results of the case study demonstrate that under the premise of reasonable pricing, considering the impact of TOU on substation capacity sizing, the construction investment and the user cost of power supply companies can be saved while meeting the power demand. The economy and rationality of the planning scheme have been significantly improved.
传感器在智能电网中的应用推动了需求侧管理（DSM）的发展。然而，DSM 的激励措施，如峰谷分时电价（TOU），将改变未来的负荷模式；变电站容量规划也将因此受到进一步影响。本文提出了一种考虑 DSM 的配电网变电站容量规划方法，并基于 TOU 电价中各参与者的成本效益分析，建立了一种峰谷分时电价定价方法。与传统的固定峰谷比相比，提出了一种动态划分方法来计算 TOU 电价的最优解。通过考虑所提出的 TOU 电价方法，进一步提出了一种配电网变电站容量规划模型。最后，根据选定的经济指标，对两种变电站容量规划方案的经济效益进行了比较和评估。案例研究的结果表明，在合理定价的前提下，考虑 TOU 对变电站容量规划的影响，可以在满足电力需求的同时，节省供电公司的建设投资和用户成本，显著提高规划方案的经济性和合理性。
