A novel measurement system specially used in noise emission assessment and verification of wind turbine generator systems is presented that complies with specifications given in IEC 61400-11 to ensure the process cons...A novel measurement system specially used in noise emission assessment and verification of wind turbine generator systems is presented that complies with specifications given in IEC 61400-11 to ensure the process consistency and accuracy. Theory elements of the calculation formula used for the sound power level of wind turbine have been discussed for the first time, and detailed calculation procedure of tonality and audibility integrating narrowband analysis and psychoacoustics is described. With a microphone and two PXI cards inserted into a PC, this system is designed in Qin′s model using VMIDS development system. Benefiting from the virtual instrument architecture, it′s the first time that all assessment process have been integrated into an organic whole, which gives full advantages of its efficiency, price, and facility. Mass experiments show that its assessment results accord with the ones given by MEASNET member.展开更多
IEC 61400-25标准实现风电场与各监控与数据采集系统(Supervisory Control and Data Acquisition,SCADA)之间能互通信息,方便监控中心获得风力发电机的运行信息,为风电场运行维护、并网操作给出合理指示。介绍信息模型和Web Services、O...IEC 61400-25标准实现风电场与各监控与数据采集系统(Supervisory Control and Data Acquisition,SCADA)之间能互通信息,方便监控中心获得风力发电机的运行信息,为风电场运行维护、并网操作给出合理指示。介绍信息模型和Web Services、OPC XML-DA、MMS、IEC 60870-5-104、DNP3等5种映射方式。展开更多
基金National Natural Science Foundation of China (50605065)
文摘A novel measurement system specially used in noise emission assessment and verification of wind turbine generator systems is presented that complies with specifications given in IEC 61400-11 to ensure the process consistency and accuracy. Theory elements of the calculation formula used for the sound power level of wind turbine have been discussed for the first time, and detailed calculation procedure of tonality and audibility integrating narrowband analysis and psychoacoustics is described. With a microphone and two PXI cards inserted into a PC, this system is designed in Qin′s model using VMIDS development system. Benefiting from the virtual instrument architecture, it′s the first time that all assessment process have been integrated into an organic whole, which gives full advantages of its efficiency, price, and facility. Mass experiments show that its assessment results accord with the ones given by MEASNET member.
文摘IEC 61400-25标准实现风电场与各监控与数据采集系统(Supervisory Control and Data Acquisition,SCADA)之间能互通信息,方便监控中心获得风力发电机的运行信息,为风电场运行维护、并网操作给出合理指示。介绍信息模型和Web Services、OPC XML-DA、MMS、IEC 60870-5-104、DNP3等5种映射方式。
