Research on the hollowing-out problem of pumped storage power stations to alleviate the power load center in Chengdu

Abstract

As a major economic and energy province, Sichuan is located at the core intersection of the Western Development Strategy and the construction of the twin-city economic circle in Chengdu and Chongqing, and is accelerating the construction of a national strategic hinterland and a key industrial backup area. As the capital of Sichuan Province and the power load center of the southwest, Chengdu has a maximum load of more than 20 million kW, but the emergency standby and peak adjustment power supply is only 4 million kW. The problem of "hollowing-out" of the power supply is prominent, and the safety of the power grid faces serious challenges. The pumped storage power station is equipped with comprehensive functions such as peak, peak adjustment, phase adjustment and black start, which is the key support to ensure the stable operation of large power grids. Based on the current situation of Chengdu's power grid, this article analyzes the formation mechanism and coping strategies of power supply "hollowing-out" in combination with the development trend of grid, source and load, and focuses on the key role of pumped storage power stations in alleviating the contradiction between power supply and demand in Chengdu and enhancing the resilience of the power grid.

Keywords

pumping and storage / Chengdu power / hollowing-out / predict