期刊名称:IOP Conference Series: Earth and Environmental Science
印刷版ISSN:1755-1307
电子版ISSN:1755-1315
出版年度:2019
卷号:242
期号:2
页码:1-8
DOI:10.1088/1755-1315/242/2/022011
出版社:IOP Publishing
摘要:With the increase of DC power supply scale and the increase of new energy output ratio, higher requirements are put forward for the PFC(primary frequency control) performance of thermal power units. Through the introduction of the inherent characteristics of PFC, aimed at the problems of insufficient adjustment range and unable to effectively maintain the adjustment load in the actual modulation process of thermal power units, one calculation method of PFC assessment index based on the comprehensive processing of time points is proposed. This method can calculate the multi-point speed difference rate in accordance with the national standard, improve the effectiveness and accuracy of primary frequency modulation assessment index, ensure that the unit meets the power grid's demand for the rapidity and stability of PFC action, and ensure the safe and stable operation of the power grid.