Author(s): Jia Wei; Weijia Yang; Jingjing Liu; Ran Wang; Xudong Li; Kangdi Huang; Lei Zhuo; Lu Zhang

Linked Author(s): Jia Wei

Keywords: Hydropower; Pumped storage; Hybrid energy system; Short-term scheduling

Abstract: Focusing on the engineering demands for supporting grid stability and serving renewable energy (RE) integration through hydropower, this work aims to compare and analyze the short-term scheduling performance between conventional hydropower plants (CHP) and pumped storage plants (PSP). First, with the goal of achieving optimal complementarity between wind and photovoltaics (PV) power generation, calculate the theoretically optimal ratio of wind to solar power generation, and use the K-means clustering algorithm to obtain typical RE output scenarios under different variability conditions. Then, establish a short-term scheduling model aimed at maximizing the RE accommodation rate, and calculate the maximum theoretical RE installed capacity that CHP and PSP can consume, thereby determining their short-term scheduling performance. Finally, conduct a case study analysis using two CHP and PSP systems with the same installed capacity to quantitatively compare their short-term scheduling performance. The results show that: For the same installed capacity of 1200 MW, the PSP can theoretically accommodate 168 MW more RE than the CHP, representing a 41.17% increase in RE consumption rate compared to CHP.

DOI: https://doi.org/10.64697/978-90-835589-7-4_41WC-P1806-cd

Year: 2025