美国得州“2·15”停电事故分析及对中国新型电力系统供电充裕度的启示

Analysis of"2·15"blackout in Texas and its enlightenment to China's new power system supply adequacy

随着经济社会的发展,电力的可靠供应引发了人们的广泛关注。2021年2月15日,受极寒天气影响美国得克萨斯州发生大范围停电事故,影响用户超过480万,给社会生产生活带来剧烈冲击。简要介绍得州电力系统概况,以时间为主线梳理得州停电事故发生过程,并从电网充裕度、区域支援能力、市场机制3个方面剖析事故原因。最后结合中国新型电力系统建设背景,提出电力气象预测技术应用、新型电力系统电源结构、灵活资源挖掘及源网荷储一体化运行、电网网架结构建设等方面的启示,为保障中国新型电力系统供电充裕度提供借鉴。

With the fast development of the economy and society,the reliable supply of electricity has triggered a wide range of concerns.On 15th,February,2021,a large-scale power outage occurred in Texas,USA due to the extremely cold weather.More than 4.8 million users are affected.This accident has a serious impact on industrial production and people's lives.Firstly,the general situation of the power system in Texas is briefly introduced,and then the specific process of the blackout is described in chronological order.After that,the causes of the blackout event are analyzed from three aspects:grid adequacy,regional support capability,and the market mechanism.Finally,from the perspective of the construction of China's new power system,some inspirations are proposed for the meteorological forecasting technology applications,the power supply structure of the new power system,the flexible resource and integrated operation of the source-grid-load-storage system,and the construction of the grid structure of the power grid.This work provides a reference to help guarantee the adequacy of the power supply in China's new power system.