摘要
随着新能源在电力系统中所占比例不断增加,特别是考虑到风电和光伏等新能源的不稳定性和分布不均等问题,维持电力系统的稳定性变得尤为重要。在化石能源向新能源过渡的阶段,火电机组的一次调频将扮演重要角色。本文针对电厂的考核数据进行了分析,并进行了调频改造研究。结果表明,由于低负荷时间的增加,电厂的考核指标未能达到要求,调频改造过程对调频逻辑和参数进行了优化调整,改造后,汽机主控制系统的性能改善效果显著,改进优化使系统平均动作合格率提升了16%。研究结果为未来火电机组一次调频的研究提供了理论依据和实际指导,对于应对新能源大规模接入电力系统的稳定性挑战具有重要意义。
With the increasing share of new energy in the electricity system,especially considering the instability and uneven distribution of new energy such as wind and photovoltaic,maintaining the stability of the electricity system has become particularly important.The primary frequency regulation of thermal power units is of great significance in the shift from fossil fuels to new energy.This article analyzes the assessment data of power plants and conducts frequency modulation transformation research.The results showed that due to the increase of low load time,the assessment indicators of the power plant did not meet the requirements.The frequency modulation transformation process optimized and adjusted the frequency modulation logic and parameters.After the transformation,the performance improvement effect of the main control system of the steam turbine was significant,and the improvement optimization increased the average action qualification rate of the system by 16%.The research results provide theoretical basis and practical guidance for future research on primary frequency regulation of thermal power units,and are of great significance for addressing the stability challenges of large-scale integration of new energy into power systems.
作者
祁庆宁
王力
王瑞东
QI Qing-ning;WANG Li;WANG Rui-dong(Guoneng Zhongwei Thermal Power Co.,Ltd.,Zhongwei 755000,China;School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China)
出处
《节能技术》
CAS
2024年第4期377-381,共5页
Energy Conservation Technology
关键词
电厂
一次调频
控制逻辑
power plant
primary frequency modulation
controllogic
