大型调相机无功调节能力试验技术研究
|
摘要
发电机组调相试验过程中电网电压的大幅波动极易引起直流输电设备运行异常和危及电网安全运行。为此提出根据发电机组进相运行及滞相运行时的限制因素,分析大型调相机调相试验中可能出现的限制因素及应对措施并确定需要验证的设计指标的试验方法。首先在进相试验时,验证温度和极限无功功率是否达到设计要求;其次在滞相试验时,验证温度和设计的额定励磁电流是否满足运行要求;同时,在验证所述设计指标前,厂用电压和机端电压可能提前受限,故采用同母线两台调相机同时开展试验,从而避免调相试验时电压受限情况出现,并减少调相试验时电网电压的波动。实例试验验证了所提方法的有效性和实用性。
Drastic fluctuation of grid voltage in the process of phase modulation test of generator units is prone to cause abnormal operation of DC transmission equipment and damage safe operation of the power grid. Therefore, this paper proposes to analyze probable limiting factors and relevant countermeasures in phase modulation test of the large synchronous condenser according to limiting factors in leading phase test and lag phase test of the generator units, and presents an verifiable test method for designing indicators. During the leading phase test, this method firstly verifies whether temperature and the extreme reactive power can meet design requirements, and secondly in the lag phase test, verifies whether temperature and the designed rated exciting current can meet operating requirements. Before verifying the designed indicators, auxiliary power voltage and generator voltage may be limited in advance, so two large synchronous condensers in the same bus are tested at the same time to avoid voltage limitation and reduce grid voltage fluctuation in the process of phase modulation test. Actual case test verifies effectiveness and practicability of the proposed method.
Drastic fluctuation of grid voltage in the process of phase modulation test of generator units is prone to cause abnormal operation of DC transmission equipment and damage safe operation of the power grid. Therefore, this paper proposes to analyze probable limiting factors and relevant countermeasures in phase modulation test of the large synchronous condenser according to limiting factors in leading phase test and lag phase test of the generator units, and presents an verifiable test method for designing indicators. During the leading phase test, this method firstly verifies whether temperature and the extreme reactive power can meet design requirements, and secondly in the lag phase test, verifies whether temperature and the designed rated exciting current can meet operating requirements. Before verifying the designed indicators, auxiliary power voltage and generator voltage may be limited in advance, so two large synchronous condensers in the same bus are tested at the same time to avoid voltage limitation and reduce grid voltage fluctuation in the process of phase modulation test. Actual case test verifies effectiveness and practicability of the proposed method.
引文
[1]李勇,程汉湘,方伟明,等.无功补偿装置在电力系统的应用综述[J].广东电力,2016,29(5):77-81.LI Yong,CHENG Hanxiang,FANG Weiming,et al.Review on application of reactive power compensation device in power system[J].Guangdong Electric Power,2016,29(5):77-81.
[2]黄娟娟,李泰军,田昕,等.雅中江西±800 kV特高压直流工程受端换流站容性无功配置研究[J].广东电力,2016,29(11):46-49.HUANG Juanjuan,LI Taijun,TIAN Xi,et al.Capacitive reactive power compensation in receiving-end converter station of Yazhong-Jiangxi±800 kV ultra-high voltage direct current transmission project[J].Guangdong Electric Power,2016,29(11):46-49.
[3]杨光,李斌.智能变电站FACTS组合装置的应用机器[J].电力工程技术,2018,37(1):130-135.YANG Guang,LI Bin.Application of FACTS combination device in intelligent substation and analysis of its trip event[J].Electric Power Engineering Technology,2018,37(1):130-135.
[4]李鹏,林金娇,孔祥平.统一潮流控制器在苏南500 kV电网中的应用[J].电力工程技术,2017,36(1):20-24.LI Peng,LIN Jinjiao,KONG Xiangping.Application of UPFC in the 500 kV southern power grid of Suzhou[J].Electric Power Engineering Technology,2017,36(1):20-24.
[5]吴长元,吴杰康,翁子豪,等.新能源配电网多类型有功无功电源容量协同优化[J].广东电力,2018,31(3):98-108.WU Changyuan,WU Jiekang,WENG Zihao,et al.Collaborative optimization on multi-typed active and reactive power source capacities of new energy power distribution network[J].Guangdong Electric Power,2018,31(3):98-108.
[6]刘应清,张强.特高压直流工程整流侧丢失触发脉冲特性研究[J].云南电力技术,2016,44(6):6-9.LIU Yingqing,ZHANG Qiang.Research on characteristic of missing firing pulses in rectifier side of HVDC project[J].Yunnan Electric Power,2016,44(6):6-9.
[7]钱永亮,唐明淑.大容量静止无功发生器在高压直流输电中的应用[J].云南电力技术,2018,46(4):91-94.QIAN Yongliang,TANG Mingshu.Principle of large capacity static var generator and its application in high voltage DC power transmission system[J].Yunnan Electric Power,2018,46(4):91-94.
[8]刘振亚,张启平,王雅婷,等.提高西北新甘青750 kV送段电网安全稳定水平的无功补偿措施研究[J].中国电机工程学报,2015,35(5):1015-1022.LIU Zhenya,ZHANG Qiping,WANG Yating,et al.Research on reactive compensation strategies for improving stability level of sending-end of 750 kV grid in Northwest China[J].Proceedings of the CSEE,2015,35(5):1015-1022.
[9]郭小江,卜广全,马世英,等.西南水电送华东多送出多馈入直流系统稳定控制策略[J].电网技术,2009,33(2):56-61.GUO Xiaojiang,BU Guangquan,MA Shiying,et al.System stability control strategy for multi-send&multi-infeed HVDCproject from southwest hydropower stations to East China power grid[J].Power System Technology,2009,33(2):56-61.
[10]郭小江,马世英,卜广全,等.上海多馈入直流系统的无功控制策略[J].电网技术,2009,33(7):30-35.GUO Xiaojiang,MA Shiying,BU Guangquan,et al.Reactive power control strategy for Shanghai multi-infeed DCsystem[J].Power System Technology,2009,33(7):30-35.
[11]黄志林,黄晓明,陈炜,等.芦嵊直流无功优化方案仿真研究[J].高压电器,2014,50(6):65-69.HUANG Zhilin,HUANG Xiaoming,CHEN Wei,et al.Simulation study on Lu-Sheng HVDC reactive power optimization scheme[J].High Voltage Apparatus,2014,50(6):65-69.
[12]鲁裕婷,赵天乐,都洪基,等.基于改进粒子群算法的含DG配电网无功优化[J].电力工程技术,2018,37(6):69-74.LU Yuting,ZHAO Tianle,DU Hongji,et al.Reactive power optimization of distribution network with distributed generation based on improved particle swarm optimization algorithm[J].Electric Power Engineering Technology,2018,37(6):69-74.
[13]国家电网公司基建部组编.大容量并网同步调相机技术规范(试行)[M].北京:中国电力出版社,2016.
[14]国家电网公司基建部组编.调相机电网应用工程设计技术原则(试行)[M].北京:中国电力出版社,2016.
[15]解兵,徐珂,汪成根,等.励磁调节器低励限制提前动作原因分析及措施[J].广东电力,2017,30(7):30-34.XIE Bing,XU Ke,WANG Chenggen,et al.Reason analysis and countermeasures for advanced action of low excitation limit of excitation regulator[J].Guangdong Electric Power,2017,30(7):30-34.
[16]解兵,徐珂,周前,等.一起机组进相试验时失磁保护动作原因分析[J].电测与仪表,2017,54(17):123-128.XIE Bing,XU Ke,ZHOU Qian,et al.Reason analysis of loss of excitation protection action during generator leading phase test[J].Electrical Measurement&Instrumentation,2017,54(17):123-128.
[17]国家能源局.DL/T1523-2016,同步发电机进相试验导则[S].北京:中国电力出版社,2016.
[18]周德贵,巩北宁.同步发电机运行技术与实践[M].北京:中国电力出版社,2004.
[19]中国国家标准化管理委员会.GB755-2008,旋转电机定额和性能[S].北京:中国标准出版社,2008.
[20]中国电力企业联合会.GB50150-2016,电气装置安装工程电气设备交接试验标准[S].北京:中国计划出版社,2016.
[2]黄娟娟,李泰军,田昕,等.雅中江西±800 kV特高压直流工程受端换流站容性无功配置研究[J].广东电力,2016,29(11):46-49.HUANG Juanjuan,LI Taijun,TIAN Xi,et al.Capacitive reactive power compensation in receiving-end converter station of Yazhong-Jiangxi±800 kV ultra-high voltage direct current transmission project[J].Guangdong Electric Power,2016,29(11):46-49.
[3]杨光,李斌.智能变电站FACTS组合装置的应用机器[J].电力工程技术,2018,37(1):130-135.YANG Guang,LI Bin.Application of FACTS combination device in intelligent substation and analysis of its trip event[J].Electric Power Engineering Technology,2018,37(1):130-135.
[4]李鹏,林金娇,孔祥平.统一潮流控制器在苏南500 kV电网中的应用[J].电力工程技术,2017,36(1):20-24.LI Peng,LIN Jinjiao,KONG Xiangping.Application of UPFC in the 500 kV southern power grid of Suzhou[J].Electric Power Engineering Technology,2017,36(1):20-24.
[5]吴长元,吴杰康,翁子豪,等.新能源配电网多类型有功无功电源容量协同优化[J].广东电力,2018,31(3):98-108.WU Changyuan,WU Jiekang,WENG Zihao,et al.Collaborative optimization on multi-typed active and reactive power source capacities of new energy power distribution network[J].Guangdong Electric Power,2018,31(3):98-108.
[6]刘应清,张强.特高压直流工程整流侧丢失触发脉冲特性研究[J].云南电力技术,2016,44(6):6-9.LIU Yingqing,ZHANG Qiang.Research on characteristic of missing firing pulses in rectifier side of HVDC project[J].Yunnan Electric Power,2016,44(6):6-9.
[7]钱永亮,唐明淑.大容量静止无功发生器在高压直流输电中的应用[J].云南电力技术,2018,46(4):91-94.QIAN Yongliang,TANG Mingshu.Principle of large capacity static var generator and its application in high voltage DC power transmission system[J].Yunnan Electric Power,2018,46(4):91-94.
[8]刘振亚,张启平,王雅婷,等.提高西北新甘青750 kV送段电网安全稳定水平的无功补偿措施研究[J].中国电机工程学报,2015,35(5):1015-1022.LIU Zhenya,ZHANG Qiping,WANG Yating,et al.Research on reactive compensation strategies for improving stability level of sending-end of 750 kV grid in Northwest China[J].Proceedings of the CSEE,2015,35(5):1015-1022.
[9]郭小江,卜广全,马世英,等.西南水电送华东多送出多馈入直流系统稳定控制策略[J].电网技术,2009,33(2):56-61.GUO Xiaojiang,BU Guangquan,MA Shiying,et al.System stability control strategy for multi-send&multi-infeed HVDCproject from southwest hydropower stations to East China power grid[J].Power System Technology,2009,33(2):56-61.
[10]郭小江,马世英,卜广全,等.上海多馈入直流系统的无功控制策略[J].电网技术,2009,33(7):30-35.GUO Xiaojiang,MA Shiying,BU Guangquan,et al.Reactive power control strategy for Shanghai multi-infeed DCsystem[J].Power System Technology,2009,33(7):30-35.
[11]黄志林,黄晓明,陈炜,等.芦嵊直流无功优化方案仿真研究[J].高压电器,2014,50(6):65-69.HUANG Zhilin,HUANG Xiaoming,CHEN Wei,et al.Simulation study on Lu-Sheng HVDC reactive power optimization scheme[J].High Voltage Apparatus,2014,50(6):65-69.
[12]鲁裕婷,赵天乐,都洪基,等.基于改进粒子群算法的含DG配电网无功优化[J].电力工程技术,2018,37(6):69-74.LU Yuting,ZHAO Tianle,DU Hongji,et al.Reactive power optimization of distribution network with distributed generation based on improved particle swarm optimization algorithm[J].Electric Power Engineering Technology,2018,37(6):69-74.
[13]国家电网公司基建部组编.大容量并网同步调相机技术规范(试行)[M].北京:中国电力出版社,2016.
[14]国家电网公司基建部组编.调相机电网应用工程设计技术原则(试行)[M].北京:中国电力出版社,2016.
[15]解兵,徐珂,汪成根,等.励磁调节器低励限制提前动作原因分析及措施[J].广东电力,2017,30(7):30-34.XIE Bing,XU Ke,WANG Chenggen,et al.Reason analysis and countermeasures for advanced action of low excitation limit of excitation regulator[J].Guangdong Electric Power,2017,30(7):30-34.
[16]解兵,徐珂,周前,等.一起机组进相试验时失磁保护动作原因分析[J].电测与仪表,2017,54(17):123-128.XIE Bing,XU Ke,ZHOU Qian,et al.Reason analysis of loss of excitation protection action during generator leading phase test[J].Electrical Measurement&Instrumentation,2017,54(17):123-128.
[17]国家能源局.DL/T1523-2016,同步发电机进相试验导则[S].北京:中国电力出版社,2016.
[18]周德贵,巩北宁.同步发电机运行技术与实践[M].北京:中国电力出版社,2004.
[19]中国国家标准化管理委员会.GB755-2008,旋转电机定额和性能[S].北京:中国标准出版社,2008.
[20]中国电力企业联合会.GB50150-2016,电气装置安装工程电气设备交接试验标准[S].北京:中国计划出版社,2016.