水力发电2025，Vol.51Issue(4)：62-68,74,8.
水电站机组参与一次调频运行探讨
Discussion on Primary Frequency Regulation Operation of Hydropower Units
摘要
Abstract
Hydropower units need to overgenerate 8%rated active power in some primary frequency regulation operation conditions of power grid,so it is particularly urgent to conduct a comprehensive analysis on the regulation capacity and potential risks of hydropower station.Based on operation investigation,design review,structural finite element and transient process calculation,and field test verification,the mode of hydropower unit participating in power grid regulation,the parameters and structure of unit and other electromechanical devices,and the design of water conveyance system are analyzed.The analysis results show that,when the unit is overgenerated,some problems may appear,including the insufficient stiffness and strength of unit structure,the hydraulic transient guarantee design of power station not meeting the requirements of specifications,and the deterioration of unit operation indicators.Therefore,it is suggested to review the primary frequency regulation capacity of hydropower stations in operation to ensure its safety.In the planning stage of hydropower station,both frequency regulation and peak regulation capacity should be taken into account to improve the regulation performance of hydropower stations.At the same time,the technical requirements of specifications in hydropower units participating in primary frequency regulation should be sorted out,and the technical and economic requirements of newly designed hydropower stations are put forward.关键词
一次调频/额定有功功率/安全运行/水电机组Key words
primary frequency regulation/rated active power/safe operation/hydropower unit分类
动力与电气工程引用本文复制引用
韩伶俐,殷晶,方杰,张官祥,王威,李海军..水电站机组参与一次调频运行探讨[J].水力发电,2025,51(4):62-68,74,8.基金项目
水电水利规划设计总院科技项目(ZY-KJSD-20230036) （ZY-KJSD-20230036）
