Experimental Study on Peak-shaving Ability of a 330MW Thermal Power Unit in Heating State

Abstract

Abstract The peak-shaving capacity of thermal power units is affected by the amount of steam extracted, so the design of the working condition diagram of heat supply can not accurately reflect the actual peak-shaving performance of units.In order to solve the above problems, this paper takes a 330MW thermal power unit as an example, gets the actual peak-shaving upper and lower limits of the unit under different extraction flow rates through peak-shaving capacity test, and compares them with the design heating working diagram, and analyses the reasons for the deviation of the actual peak-shaving capacity and design value, so as to provide reference for the operation and dispatch of the power plant and help power plants to better participate in peak shaving of ancillary services.