基于综合运行特性模型的某抽水蓄能机组发电工况运行区域划分
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摘要
为科学划分某抽水蓄能机组在发电工况下的运行区域,考虑水轮机效率、机组稳定性及噪声等工况特征指标建立了机组运行综合特性模型,分别在低(310m)、中(320m)、高(330m)特征静水头下进行现场水轮机效率、机组稳定性和噪声试验,每个水头下的试验工况包括了发电工况下从空载到额定负荷间阶梯式选取的13个负荷工况。以水轮机效率、机组稳定性及噪声等测试数据为基础,依据主机合同技术规范中的相关要求将试验机组在不同试验水头下发电工况的运行区域划分为《水力发电厂和蓄能泵站机组机械振动的评定》中推荐划分的A区(高效稳定区)、B区(过渡限运区)、C区(强振禁运区)。研究成果为电网调度中心合理制订该机组在发电工况的负荷计划提供了依据。
In order to partition operating regions of a certain pumped storage unit in generating condition scientifically,comprehensive operating characteristic model was established by considering the characteristics of turbine efficiency,stability and noise.The turbine efficiency,stability and noise were tested under three characteristics gross heads,such as310 m,320 mand 330 m.Each test condition includes 13 operation load conditions,which were selected staged between no-load and rated load in generating condition.According to the relevant requirements of the technical specification,A region(stable operating range),B region(permitted operating range)and C region(disabling operating range)in generating condition for the test unit were partitioned,which was based on the test data of turbine efficiency,stability and noise.The research provides basis for the generation condition load plan of the test unit that designed by the dispatching center.
In order to partition operating regions of a certain pumped storage unit in generating condition scientifically,comprehensive operating characteristic model was established by considering the characteristics of turbine efficiency,stability and noise.The turbine efficiency,stability and noise were tested under three characteristics gross heads,such as310 m,320 mand 330 m.Each test condition includes 13 operation load conditions,which were selected staged between no-load and rated load in generating condition.According to the relevant requirements of the technical specification,A region(stable operating range),B region(permitted operating range)and C region(disabling operating range)in generating condition for the test unit were partitioned,which was based on the test data of turbine efficiency,stability and noise.The research provides basis for the generation condition load plan of the test unit that designed by the dispatching center.
引文
[1]袁寿其,方玉建,袁建平,等.我国已建抽水蓄能电站机组振动问题综述[J].水力发电学报,2015,34(11):1-15.
[2]王正伟,秦亮,曾季弟,等.水轮机运行区划分研究[J].水力发电学报,2009,28(2):143-146,34.
[3]王正伟,秦亮,曾季弟,等.基于不定场流动及动力响应分析的水轮机运行区划分[J].中国科学:技术科学,2010,40(2):186-195.
[4]李程煌,常黎,朱斌.水电站安全与经济运行研究及其应用[J].水电自动化与大坝监测,2004,28(6):53-56.
[5]薛鹏,曾季弟,林家洋,等.基于遗传算法和运行区划分的水电站厂内经济安全运行分析[J].水力发电学报,2010,29(6):13-18.
[6]冯雁敏,常洪军,张恩博.基于超声波测流法的HLA855a-LJ-310型水轮机效率试验[J].华北水利水电大学学报:自然科学版,2016,37(1):78-83.
[7]冯雁敏,常洪军.某抽水蓄能电站#2机组运行稳定性分析[J].水电能源科学,2016,34(11):160-164.
[8]冯雁敏,常洪军,张恩博,等.某混流式水轮发电机组现场稳定性试验及振动保护策略研究[J].水电能源科学,2016,34(7):178-182,5.
[9]GB/T 32584-2016,水力发电厂和蓄能泵站机组机械振动的评定[S].北京:中国标准出版社,2016.
[10]GB/T 18482-2010,可逆式抽水蓄能机组启动试运行规程[S].北京:中国标准出版社,2011.
[2]王正伟,秦亮,曾季弟,等.水轮机运行区划分研究[J].水力发电学报,2009,28(2):143-146,34.
[3]王正伟,秦亮,曾季弟,等.基于不定场流动及动力响应分析的水轮机运行区划分[J].中国科学:技术科学,2010,40(2):186-195.
[4]李程煌,常黎,朱斌.水电站安全与经济运行研究及其应用[J].水电自动化与大坝监测,2004,28(6):53-56.
[5]薛鹏,曾季弟,林家洋,等.基于遗传算法和运行区划分的水电站厂内经济安全运行分析[J].水力发电学报,2010,29(6):13-18.
[6]冯雁敏,常洪军,张恩博.基于超声波测流法的HLA855a-LJ-310型水轮机效率试验[J].华北水利水电大学学报:自然科学版,2016,37(1):78-83.
[7]冯雁敏,常洪军.某抽水蓄能电站#2机组运行稳定性分析[J].水电能源科学,2016,34(11):160-164.
[8]冯雁敏,常洪军,张恩博,等.某混流式水轮发电机组现场稳定性试验及振动保护策略研究[J].水电能源科学,2016,34(7):178-182,5.
[9]GB/T 32584-2016,水力发电厂和蓄能泵站机组机械振动的评定[S].北京:中国标准出版社,2016.
[10]GB/T 18482-2010,可逆式抽水蓄能机组启动试运行规程[S].北京:中国标准出版社,2011.