陕西首个“飞轮+磷酸铁锂”混合储能联合调频项目并网

Core Viewpoint - The successful commissioning of the 10 MW/7.28 MWh flywheel and lithium iron phosphate battery hybrid energy storage frequency regulation demonstration project marks a significant advancement in energy storage integration and frequency regulation applications in Shaanxi Province [1][5]. Group 1: Project Overview - The project is located in Linyou County, Baoji City, Shaanxi Province, covering an area of approximately 1,026 square meters [4][7]. - It consists of two energy storage frequency regulation systems: a 4 MW/0.4 MWh flywheel energy storage system and a 6 MW/6.88 MWh lithium-ion battery energy storage system [4][7]. Group 2: Technical Advantages - Flywheel energy storage is characterized by fast response speed, long cycle life, high power density, and environmental friendliness, making it suitable for short-term high-frequency power regulation [3][9]. - Lithium iron phosphate battery storage offers higher energy density, flexible capacity configuration, and mature technology, making it ideal for longer-duration power support [3][9]. Group 3: Benefits of Hybrid System - The combination of flywheel and lithium iron phosphate battery systems optimizes power distribution and response strategies during frequency regulation, effectively compensating for the shortcomings of single energy storage forms [3][10]. - This hybrid energy storage system enhances the timeliness, accuracy, and economic efficiency of grid frequency regulation, improving the safety and stability of system operations [10]. Group 4: Implications for the Industry - The project's successful operation provides an important practical case for the large-scale application of hybrid energy storage in grid frequency regulation, offering valuable insights for the diversified development paths of energy storage technologies under the new power system construction context [5][10].