几内亚苏阿皮蒂水电站机组额定水头选择
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摘要
水电站额定水头的选择是一个技术、经济等综合性问题。针对几内亚苏阿皮蒂水电站额定水头的确定,若额定水头较高,当机组长时间低于额定水头运行时,会造成较大的受阻容量;若额定水头较低,机组存在运行稳定问题,且在额定容量不变时,需加大水轮机直径或相应降低机组转速,从而增加投资。结合国内相同水头段已建水电站的设计、运行资料综合分析,确定苏阿皮蒂水电站额定水头为87 m。
Selection of the rated water head for hydro-turbine units in hydropower stations is a comprehensive issue of technology and economy. This paper introduces the selection of the rated head in Souapiti Hydropower Station. If the rated head is too high,the units will operate under the rated head for a long time resulting in a larger resistance capacity.If the rated head is too low,the units will be suffered from instability problems. Furthermore,if the rated capacity is unchanged,the turbine diameter should be increased or the unit speed should be reduced accordingly,resulting in the investment increase. Finally,based on a comprehensive analysis of the design and operation data of hydropower stations built in the same water head range in China,the rated water head of the units in Souapiti Hydropower Station is determined to be 87 m.
Selection of the rated water head for hydro-turbine units in hydropower stations is a comprehensive issue of technology and economy. This paper introduces the selection of the rated head in Souapiti Hydropower Station. If the rated head is too high,the units will operate under the rated head for a long time resulting in a larger resistance capacity.If the rated head is too low,the units will be suffered from instability problems. Furthermore,if the rated capacity is unchanged,the turbine diameter should be increased or the unit speed should be reduced accordingly,resulting in the investment increase. Finally,based on a comprehensive analysis of the design and operation data of hydropower stations built in the same water head range in China,the rated water head of the units in Souapiti Hydropower Station is determined to be 87 m.
引文
[1]秦守田.大中型水电站额定水头选择探讨[J].东北水利水电,2013(11):6-8
[2]黄奋杰,黄骏.关于水轮发电机组额定水头选择的探讨[J].云南水力发电,2004,20(1):72-75
[3]鲍伟民,朱惠君,武赛波.糯扎渡水电站额定水头选择[J].水力发电,2005,31(5):72-74
[2]黄奋杰,黄骏.关于水轮发电机组额定水头选择的探讨[J].云南水力发电,2004,20(1):72-75
[3]鲍伟民,朱惠君,武赛波.糯扎渡水电站额定水头选择[J].水力发电,2005,31(5):72-74