Pumped storage-gravity energy storage-photovoltaic-wind power system utilizing abandoned coal mine

• Main Authors: ZENG XIAOCHAO, REN ZEDONG, AN YUAN, GUO YONG, LI SIYUAN, LIANG MANYING, ZHAO GUANGSHI, LI NING, LI YUANYUAN, PANG YAQI
• Format: Patent
• Language: Chinese; English
• Published: 05.01.2024
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model relates to a pumped storage-gravity storage-photovoltaic-wind power system utilizing a waste coal mine, which comprises a pumped storage power station, a gravity storage power station and a renewable energy power generation device, the pumped storage power station comprises an upper reservoir located on the ground, a plurality of horizontal roadways located on the lower portion of the abandoned coal mine serve as lower reservoirs, and the upper reservoir is connected with the lower reservoirs through water conveying pipelines. The gravity energy storage power station comprises a gravity energy storage device, the gravity energy storage device comprises a heavy object and a lifting device for controlling the heavy object to ascend and descend, the heavy object is located in a lifting channel, and the lifting channel is a vertical shaft close to the ground; the renewable energy power generation device is a photovoltaic power generation device and/or a wind power generation device. According to