超级电容储能辅助燃气轮机黑启动系统调频技术应用研究  

Application of frequency modulation technology in black start system of gas turbine assisted by super capacitor energy storage

作　　者：殷悦 孙钢虎[1] 兀鹏越[1] 燕云飞 宋厅 罗勇 邱致猛 YIN Yue;SUN Ganghu;WU Pengyue;YAN Yunfei;SONG Ting;LUO Yong;QIU Zhimeng(Xi’an Thermal Power Research Institute Co.,Ltd.,Xi’an 710054,China;Huaneng Guilin Gas Distributed Energy Co.,Ltd.,Guilin 541100,China)

机构地区：[1]西安热工研究院有限公司,陕西西安710054 [2]华能桂林燃气分布式能源有限公司,广西桂林541100

出　　处：《热力发电》2024年第11期31-37,共7页Thermal Power Generation

摘　　要：针对燃气轮机机组黑启动项目中频率波动大的案例,结合燃气机组黑启动系统及静止变频器(SFC)启动时波形图,对故障现象进行详细描述及具体故障原因分析。在考虑柴油发电机组响应速度较为缓慢的特性基础上,提出了一种超容辅助黑启动调频策略,将SFC功率分为基础功率与频率波动功率,基础功率由柴油发电机组承担,以保证系统的稳定运行;频率波动功率则由超级电容快速响应,以有效抑制频率波动。通过某4F燃气轮机机组的黑启动实验验证,该策略不仅有效降低了黑启动过程中频率的波动且避免了升速变负荷阶段的过电流故障,从而提高了燃气机组黑启动的可靠性和安全性。Aiming at the case of large frequency fluctuation in natural gas unit black start project,combining with the gas black start system and the waveform diagram during static frequency convertor(SFC)startup,the failure phenomenon is described in detail and the specific cause of the failure is analyzed.On the basis of considering the slow response speed of diesel generator unit,a super capacitor-assisted black start frequency modulation(FM)strategy is proposed.The SFC power is divided into base power and frequency fluctuation power,among which the base power is borne by the diesel generator unit to ensure stable operation of the system,and the frequency fluctuation power is quickly responded by the supercapacitor to suppress the frequency fluctuation effectively.Through the black start experiment of a 4F gas unit,the strategy not only effectively reduces the frequency fluctuation during the black start process,but also avoids the overcurrent fault during ramp-up and load-change phase,thus the reliability and safety of black start of the gas unit is improved.

关 键 词：黑启动 超级电容 调频 SFC过电流 

分 类 号：TM611.31[电气工程—电力系统及自动化] TM53