Risks Analyses and Control Measures of Deep Peak Shaving for the 1000MW Ultra-Supercritical Unit

Abstract

Influenced by economy, policy and other aspects, it is often necessary to carry out deep peak shaving at low load for large-capacity thermal power units in order to flexibly adapt to the power supply demand of power grid. Safety risks increases obviously in deep peak shaving operation, but it can be lowered to a minimum through reasonable operation adjustment to ensure the safe operation of units. Based on the operation experience, the potential safety risks of deep peak shaving for the 1000MW ultra-supercritical unit are analyzed, and the corresponding control measures are worked out.