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柘溪水电站水库调度自动化系统主要有入库洪水优化调度、水情自动测报、多媒体水库调度系统、水文信息管理系统、防洪决策与闸门监控系统、上游洪水预报系统及正在着手建立的水库调度综合自动化系统,自动化系统的投入使水库调度工作管理水平提高到一个新的高度,取得良好的效益。 相似文献
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新一代监控系统在紧水滩梯级调度系统改造中的应用 总被引:7,自引:6,他引:1
介绍了紧水滩梯级调度系统的结构、特点和主要功能,以及原系统的不足,重点剖析了远方控制和调节、网络通信、梯级电站经济调度控制(EDC)等梯级调度系统的关键技术在紧水滩梯级调度系统中的应用。 相似文献
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游大海 《中国水能及电气化》2002,(9):41-42
电网调度自动化系统包含电网调度自动化系统、电网生产调度信息管理系统两部分.目前大多数地区的电网调度自动化系统仅包含通常所说的调度自动化,而对于进行电网调度管理及实时信息发布的电网生产调度信息管理系统还远没有得到广泛的应用.本文是以武汉华工电气自动化有限责任公司研制开发的HEA-2002电网调度自动化为例,介绍全面的电网调度自动化系统. 相似文献
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本文通过论述察尔森水库水文遥测系统、洪水调度系统等在洪水调度中的作用,说明了现代化管理手段在水库调度运用中的重要作用。同时提出了水库将来管理的新构想;用GIS完善水库调度系统,提高水库调度水平。 相似文献
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<正>渭河的水量调度工作已经开展了八年,亟需建立一套水量调度系统平台,利用信息技术来实施水量科学合理的调度,以促进陕西省渭河管理乃至黄河的生态环境管理。渭河水量调度模型平台应用系统是渭河水量调度系统的核心业务系统,是陕西省水资源管理系统的重要组成部分,模型于2013年正式投入使用,实现了渭河水量调度业务信息采集、传输、处理、存储自动化,以及来、用水信息统计查询、调度方案编制及生成、调度效果评价等功能。渭河 相似文献
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节能增效型水库调度信息一体化平台 总被引:2,自引:1,他引:1
节能增效型水库调度信息一体化平台采用面向服务的设计理念,丰富与扩展水库调度自动化系统,结合水能资源在电网调度的运用,提高清洁能源的使用;在水库调度自动化系统中采用了最新的信息集成方式、多层次软件构架、发电计划模型,结合信息一体化平台实现了调度运行使用;平台的研究促进了水库调度自动化系统的进一步发展,为后期的自动化系统信息集成、水库调度智能化业务发展提供了借鉴. 相似文献
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肖燕 《水电自动化与大坝监测》2009,33(4):70-72
梯级水库防洪调度系统是实现流域防洪调度的关键和核心.文中从应用角度出发,分析梯级水库防洪调度的业务需求,提出梯级水库防洪调度系统须具有资料管理、仿真学习、调度计算、安全校验、分析会商等功能,总结出较为实用的水库调度方案制定流程为数据录入、分析试算、闸门反推计算、结果安全校验、成果表达,推进了梯级防洪调度系统的实用化、智能化. 相似文献
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对嘉兴地区主要给水厂近年来应用立体弹性填料、LT型悬浮球填料、YS型悬浮填料、卵石填料等的生物预处理工艺从填料及配套设施、工艺运行参数、运行效果、成本等方面进行了比较.认为弹性填料生物预处理更适用于低浊(50 NTU以下)、低氨氮(1.5 mg/L以下)原水,LT型悬浮球填料生物预处理适用于低中浊(100 NTU以下)、低中氨氮(2.5 mg/L以下)原水,YS型悬浮填料生物预处理及"SAF"滤池对低浊、中高氨氮(2.5 mg/L以上)原水有较好的适应性.最后探讨了弹性填料存在的短流、积泥,悬浮填料存在的部分填料流化不均匀,富氧的生物工艺单元内水生动物泛滥等问题. 相似文献
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Changes in nutrient levels in some Eastern European rivers in response to large-scale changes in agriculture. 总被引:3,自引:0,他引:3
P St?lnacke S M Vandsemb A Vassiljev A Grimvall G Jolankai 《Water science and technology》2004,49(3):29-36
Since the late 1980s, the use of commercial fertilisers in most Eastern European countries has decreased at an unprecedented rate. We examined the impact of this dramatic reduction in agricultural inputs on concentrations of nutrients in four rivers in Eastern Europe: the Emajogi and Ohnejogi (Estonia), the Daugava (Latvia), and the Tisza (Hungary). Time series of nitrate (NO3-N) and phosphate (PO4-P) concentrations and data on runoff were selected to represent catchments with substantial areas of agricultural land and available time series of sufficient length and frequency. The study period was 1987-1998. We detected downward trends in nitrate-N and phosphate-P in only two of the four rivers. Our results imply that the response to the extensive decrease in agricultural intensity since the late 1980s has been slow and limited in many rivers. Corresponding results in the literature are inconclusive and comprise several examples of both decreasing and non-decreasing nutrient concentrations. Our findings, along with similar data from other studies, indicate that large cuts in nutrient inputs do not necessarily induce an immediate response, particularly in medium-sized and large catchment areas. Moreover, the difference we noted between nitrogen and phosphorus suggests that factors other than reduced fertiliser application influenced the inertia of the water quality response. 相似文献
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对长江、珠江等河口及其近海水域缺氧现象与影响因素进行研究,结果表明,主要分布于长江与珠江河口及其邻近海域的缺氧现象,夏季(6—8月)达到最盛,秋冬季消失;长江口的缺氧区域主要位于30.75°N~32°N,122.5°E~123.25°E附近海域,具有南北2个缺氧中心;珠江口缺氧程度相对较轻,缺氧区域主要在广州黄埔区河段至虎门水域和伶仃洋;辽河、钱塘江、海河等河口区域也时而出现零星的缺氧现象;水体缺氧受控于多项环境要素,物理层化作用是缺氧产生的最初诱因之一,陆源污染物的分解则是重要的耗氧负荷;各河口区特征各异,潮汐、洋流、营养盐、叶绿素a等要素对缺氧区的范围、程度和持续时间影响程度不一。 相似文献
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深圳河支流新洲河属雨源型河流,因污染而采取全线截排污水整治.在上游河道内利用生物飘带技术处理低浓度污水,处理达标后,作为河流生态水源.在中游将截排污水引入自然循环方式污水处理系统,处理达标后作为河道补水.下游利用射流清淤配合利用天文大潮进行水体交换,达到消除黑臭水体,维持河道水景观的目的.介绍新洲河水环境综合整治采用的几项关键技术的设计原理及应用效果. 相似文献
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李广杰 《水科学与工程技术》2001,(5):7-8
洋河水库是我省重点病险库之一,1998年12月实施除险加固工程。工程建设过程中在科研、设计、施工及管理等方面取得了可喜的成果。通过研究分析,因地制宜地选择了天然建筑材料,合理确定了施工方案,有效保证了施工质量,节约了工程投资。 相似文献
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Ecological river engineering can be defined as the design and implementation of river works and river restoration works for the benefit of human society. It also guarantees the sustainable ecological functions of a river, such as its habitats and self-purification of its water. It is currently in the beginning stages in Korea, utilizing scientific knowledge on the processes of aquatic ecosystem degeneration and a methodology for solving the ecological problems in artificially altered rivers currently under development. The changes in river management and work practices in Korea may be best explained with a chronologically progressing sequence of ‘Natural’, ‘Disaster-prevention’, ‘Occupied’, ‘Park’, and ‘Close-to-nature’ rivers. Since the 1960s, the focus on river management and work has shifted from flood control only, to both flood control and riverine habitat conservation and restoration. Five research topics have been selected for this article, and the progress of each research area is briefly described with a representative picture in each topic. They are as follows: (1) flow resistance due to vegetation, (2) environmental flow, (3) floodplain vegetation modeling, (4) small dam removal, and (5) river restoration. For the future prospects of research on ecological river engineering in Korea, a necessity of further research on floodplain vegetation recruitment and succession, which can explain the so-called ‘white river’ and ‘green river’, is underlined, among others. Finally, two ongoing large research programs on river ecosystem restoration, of which are sponsored by the Government of Korea, are briefly introduced, followed by the introduction of a near-prototype experiment facility recently completed mainly for research on ecological river engineering. 相似文献