LIN Mindu, GUO Jie, QIN Xichao Guangdong Yudean Jinghai Power Generation Co.. Half load rejection test for an ultra supercritical 1 000 MW unit: operations and control measures[J]. Thermal power generation, 2013, 42(6): 78-81.
LIN Mindu, GUO Jie, QIN Xichao Guangdong Yudean Jinghai Power Generation Co.. Half load rejection test for an ultra supercritical 1 000 MW unit: operations and control measures[J]. Thermal power generation, 2013, 42(6): 78-81.DOI:
超超临界1000MW机组50%甩负荷试验的操作与控制措施
摘要
在分析广东粤电靖海发电有限公司(惠来电厂)超超临界1 000MW机组50%甩负荷试验结果的基础上
给出了相关操作方法
提出了主蒸汽压力、给水流量和给煤量、凝汽器和除氧器水位、主蒸汽温度、锅炉燃烧等控制措施
使机组在50%甩负荷期间保持主蒸汽温度稳定
有效地控制了汽轮机转速的飞升
使机组在空负荷工况下运行稳定。在试验中同时对数字式电液控制系统(DEH)的动态特性进行了考核。
Abstract
On the basis of analysis on the 50% load rejection test for ultra supercritical 1 000 MW unit of Guangdong Yudean Jinghai Power Generation Co.
Ltd.
the related operation methods were proposed
and several control measures for such factors as main steam pressure
quantity of feed water and coal
water level of the condenser and deaerator
main steam temperature and combustion were also put forward.After the improvement
the main steam temperature was kept stable during the 50% load rejection test
and the sharp increase of turbine speed was effectively controlled.The unit can be stably operated with empty load.Besides
the dynamic property of the digital electro hydraulic control system(DEH) was examined during the test.