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中文摘要: 介绍了一起9FB联合循环机组在停机过程中因上游分输站内主、备用调压线SSV阀误关，导致机组天然气供应中断，进而由于燃气压力低，造成机组RB的案例。通过分析燃机控制逻辑，对本次事件的原因进行了详细分析并对其他情况下的RB速率进行了剖析，了解了燃气轮机不同情况下降负荷速率的差异，以及各种触发条件。从电厂运行的角度，提高了运行技能及日后机组出现类似异常情况下的处理能力。
Abstract:This paper introduces a case of 9FB combined cycle unit's natural gas supply interruption due to the wrong shutdown of SSV valves of main and standby surge lines in upstream diversion station during shutdown, and then the RB of unit is caused by the low gas pressure. By analyzing the control logic of the gas engine, the causes of this event are analyzed in detail, and the RB rate in other cases is analyzed. The difference of load reduction rate in different cases of the gas engine and various triggering conditions are understood. From the point of view of power plant operation, the operation skills and the ability to deal with similar abnormal situations in the future are improved.
keywords: gas turbine natural gas safety shut-off valve runback
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基金项目:
| Author Name | Affiliation |
| Ding Jianjun | Guangdong Yudean Xinhui Generation Co., Ltd. |
| Yan Qiang | Guangdong Yudean Xinhui Generation Co., Ltd. |
引用文本：
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.