Challenges and countermeasures faced by coal-fired power units under the capacity pricing mechanism—applicationanalysis of MSAF large science facilities

Liang Zhiguo; Lu Yonghao; Wang Meiling; Han Yongming; Liu Tingguang; Li Chenguang

Abstract：Currently,strategic emerging industries such as new energy in China are developing rapidly,and the problem of unstable new energy power generation is becoming increasingly prominent.Recently,the National Development and Reform Commission and the National Energy Administration officially issued the"Notice on Establishing a Coal Electricity Capacity Pricing Mechanism"(hereinafter referred to as the"Notice"),which specifies that China will establish a coal electricity capacity pricing mechanism from January 1,2024.The implementation of this mechanism will effectively promote the transformation of coal-fired power generation's business development model,accelerate the development of new energy in China,and promote the green and low-carbon transformation of the energy system.As the most important and low-cost supporting and regulating power source in China,coal-fired power is of great significance in promoting the transformation of coal-fired power towards providing capacity support and balancing electricity consumption,and further accelerating the development of new energy.With the increasing reliability requirements of the power grid for coal-fired power units,they participate in deep regulation,frequent start-up,and significant load changes.The units need to withstand significant temperature and stress changes,and the risk of fatigue damage to key components is significantly increased.The National Major Science and Technology Infrastructure"Major Engineering Material Service Safety Research and Evaluation Facility"aims to address the challenges of service evaluation of key materials and components in China's energy,transportation,and infrastructure construction and development.Multiple sets of internationally leading multi environmental factor coupled working condition simulation large-scale scientific testing devices have been built,breaking the traditional research paradigm of small samples and single environments,this provides a scientific and systematic solution for China's coal-fired power units to cope with new challenges.This article analyzes the current technological bottlenecks faced by coal-fired power units,and based on the case of the large scientific facility serving energy equipment,provides countermeasures and suggestions for leveraging the role of large scientific facilities under new changes and improving the reliability of coal-fired power units under complex working conditions.