A Method to Optimize Peak Load Regulation in Power Grid Considering HVDC

Peak load regulation problems may be aroused when the HVDC link is connected to the power system. In this paper, the evaluation method of multi-objective segmentation is proposed based on the HVDC operation modes. And the comprehensive evaluation model is established by considering membership functions of peak load regulated surplus quantity in the peak load condition and the abandoned electric quantity in the low load condition. The model utilizes the comprehensive membership functions to evaluate the effect of HVDC link on the power grid and optimize the peak load regulation. The proposed approach is applied to the Yunnan power grid in 2017, with the access to the HVDC link from Yongren to Funing to analyze the peak load regulation.