随着1.8 GHz、230 MHz、2.4 G/5.8 GHz免授权频段等长期演进技术(Long Term Evolution,LTE)宽带无线通信专网在电力行业被广泛应用,传统的基站选址模式在山地电站和海上电站等风电电站场景下建设成本高、难度大、周期长等问题日益突出...随着1.8 GHz、230 MHz、2.4 G/5.8 GHz免授权频段等长期演进技术(Long Term Evolution,LTE)宽带无线通信专网在电力行业被广泛应用,传统的基站选址模式在山地电站和海上电站等风电电站场景下建设成本高、难度大、周期长等问题日益突出。文章针对风电电站行业的特点,利用风机自身高度优势,提出利用风机作为基站选址,对基站和天馈系统部署在风机的可行性进行研究和应用实现。为风电行业提供了一种有效的无线通信基站选址,并解决天线选型安装、频拉远单元(Remote Radio Unit,RRU)设备安装供电、馈线走线、防水、防雷和抗风等基站建设实施问题,且在实际项目中交付验证。通过链路预算,在平原(含内陆水面)和山地2种地形下,相较其他传统基站选址,覆盖小区半径提升至少40%以上的覆盖能力,并最大程度降低基站建设成本、缩短建设周期、解决了设备物质防盗难题。为LTE无线专网在风电行业的推广应用奠定坚实基础,助力智能电网建设。展开更多
An information system for ocean wave resources and its application to wave power utilization are introduced. It can manage, analyze and process the data in the monthly report of ocean wave observation records of the S...An information system for ocean wave resources and its application to wave power utilization are introduced. It can manage, analyze and process the data in the monthly report of ocean wave observation records of the State Ocean Administration, and can provide various kinds of curves and numerical characters of statistics. This system has been put into utility in Guangzhou Institute of Energy Conversion (GIEC), the Chinese Academy of Sciences since 1996. An application example is given of the investigation and analysis on ocean wave resource of the Nan Ao Island, Guangdong Province, where a 100 kW onshore OWC (oscillating water column) wave power station will be built. The wave power distribution is obtained in different wave directions for different wave periods. It is found that 70 percent of the wave power comes from the direction of ENE, and more than 95 percent of the wave power is related with direction E. The average wave power density is about 3 kW/m, and more than 80 percent of the wave power is distributed in the wave periods of 4 second to 5 second. Based on the analysis of wave resources, a site on the east coast of the island and a design width of 20 m for the 100 kW station are suggested.展开更多
文摘随着1.8 GHz、230 MHz、2.4 G/5.8 GHz免授权频段等长期演进技术(Long Term Evolution,LTE)宽带无线通信专网在电力行业被广泛应用,传统的基站选址模式在山地电站和海上电站等风电电站场景下建设成本高、难度大、周期长等问题日益突出。文章针对风电电站行业的特点,利用风机自身高度优势,提出利用风机作为基站选址,对基站和天馈系统部署在风机的可行性进行研究和应用实现。为风电行业提供了一种有效的无线通信基站选址,并解决天线选型安装、频拉远单元(Remote Radio Unit,RRU)设备安装供电、馈线走线、防水、防雷和抗风等基站建设实施问题,且在实际项目中交付验证。通过链路预算,在平原(含内陆水面)和山地2种地形下,相较其他传统基站选址,覆盖小区半径提升至少40%以上的覆盖能力,并最大程度降低基站建设成本、缩短建设周期、解决了设备物质防盗难题。为LTE无线专网在风电行业的推广应用奠定坚实基础,助力智能电网建设。
文摘An information system for ocean wave resources and its application to wave power utilization are introduced. It can manage, analyze and process the data in the monthly report of ocean wave observation records of the State Ocean Administration, and can provide various kinds of curves and numerical characters of statistics. This system has been put into utility in Guangzhou Institute of Energy Conversion (GIEC), the Chinese Academy of Sciences since 1996. An application example is given of the investigation and analysis on ocean wave resource of the Nan Ao Island, Guangdong Province, where a 100 kW onshore OWC (oscillating water column) wave power station will be built. The wave power distribution is obtained in different wave directions for different wave periods. It is found that 70 percent of the wave power comes from the direction of ENE, and more than 95 percent of the wave power is related with direction E. The average wave power density is about 3 kW/m, and more than 80 percent of the wave power is distributed in the wave periods of 4 second to 5 second. Based on the analysis of wave resources, a site on the east coast of the island and a design width of 20 m for the 100 kW station are suggested.
