摘要
五强溪电厂500 kV输电线路距离较长,负荷低谷时段电厂母线电压上升。为保证电网稳定,维持母线电压在合理区间,谷荷时安排两台机组空载运行吸收电网无功功率,造成了一定的经济损失,对发电设备运行造成不良影响。为此,跟踪采集现场5个月空载调压数据,统计分析了无调压、单机双机空载运行调压时母线电压的调整范围;并从耗水量的角度,分析了调压运行对经济的影响;最后,研究了空载调压对发电机和水轮机设备的影响,并分析了具体原因。
The distance of the 500 kV transmission line of Wuqiangxi Power Plant is relatively long, the bus voltage of the power plant rises during the low load period. In order to ensure the stability of the power grid, the bus voltage of Wuqiangxi Power Plant must be maintained within a reasonable range, and two generator should be arranged for no-load operation to absorb the reactive power of the grid at the valley load time. As a result, certain econonfic losses and adverse effects on the operation of the power generation equipment are caused. Therefore, the data of five months of no-load regulation has been collected, to analyze the range of bus voltage when there is no voltage regulation, single-generator and double-generators no-load operation and voltage regulation. The impact of the no-load operation on the economy has been calculated and studied from the perspective of water conssumption. The impact of no-load of the generator and turbine equipment is researched, and the specific reasons are analyzed.
作者
姜运
蔡军
黄程
JIANG Yun;CAI Jun;HUANG Cheng(Wuqiangxi Power Plant,Huaihua 419636,China)
出处
《湖南电力》
2018年第5期45-47,共3页
Hunan Electric Power
关键词
五强溪电厂
空载调压
经济影响
设备影响
Wuqiangxi Power Plant
no load regulation
economic impact
equipment impact
