共查询到20条相似文献,搜索用时 218 毫秒
1.
2.
3.
4.
5.
6.
针对水电厂运行和生产过程中存在安全隐患等问题,为了实现水电厂水电设备安全生产的动态监督,文章提出了基于区块链的水电设备故障风险动态计算模型。首先,结合区块链的可信数据交换技术,构建了水电厂水电设备故障风险数据传输、交换与存储的架构体系;其次,采用自适应混沌粒子群算法对径向基神经网络参数进行优化,建立水电设备故障风险数据预测计算模型;再次,使用Jaccard距离对预测结果进行校正,构建计算误差反馈模型,并在此基础上,提出水电厂水电设备故障风险动态计算模型;最后,通过算例仿真验证文章所提水电厂水电设备故障风险动态计算模型的可行性和优越性。 相似文献
7.
8.
9.
针对水轮机调速系统的辨识难题,提出了1种基于超平面原型聚类的T-S模糊模型辨识方法.基于局部模糊模型线性度的重要性,推导出1种基于超平面的模糊聚类算法.该算法以优化局部模型线性度为目标,进行模糊模型前提结构辨识,能使局部模型具有良好的线性度;它应用变尺度混沌优化方法搜索最优聚类结果,避免陷入局部极小;应用最小二乘法实现模糊模型结论参数辨识.以某水电厂水轮机调速系统为对象,采用该方法建立了T-S模糊模型,并对其进行了辨识和对比试验.结果表明:建立的T-S辨识模型具有较高的辨识精度及较强的泛化能力,提出的模型辨识方法有效可行. 相似文献
10.
11.
针对水电厂各子系统间海量异构数据资源综合利用率低的问题,介绍了一套全新的综合数据组态分析系统。该系统基于智能水电厂统一平台架构进行开发,通过数据仓库封装由各子系统采集的海量异构数据,结合运维人员定制的专业主题模板,采用数据挖掘技术预处理数据仓库中的数据并生成相应的专业主题数据,通过访问客户端高自由度的组态软件,用户可快速构建数据分析、设备报警条件主题模板,最终系统以设备状态诊断、智能报警等方式将有价值的信息呈现给用户。工程实际应用结果表明,该系统提升了水电厂的信息化管理水平及预防性维护决策能力,保障了电厂安全稳定运行。 相似文献
12.
为实现水电站厂房的整体运行状态安全监测.解决多通道振源耦合及单通道测量范围有限等问题,以去学水电站厂房振动响应为例,基于多通道加权多尺度排列熵(MWMPE)算法对不同工况下的多通道振动数.据进行信息融合,再分析融合后的熵值曲线是否与实际运行工况一致,最后利用熵值曲线分析结构整体的运行状态。结果表明,MWMPE避免了跨通道信号的丢失、放大了局部波动,信息量更丰富,适宜于处理多测点非线性、非平稳信号;MWMPE算法可更全面地监测水电站厂房结构整体的运行状态。MWMPE算法的提出为水工结构的整体安全监测提供了新思路,为水工结构的安全诊断及后期运行管理提供了理论依据和应用基础。 相似文献
13.
14.
15.
16.
《Energy Policy》2006,34(17):3195-3205
India being a developing country has witnessed a rapidly growing energy needs owing to fast industrialization. Sustainable and qualitative growth for developing economics and habitat requires increased energy input from various resources while maintaining balance in the ecosystem during exploitation. Paper discusses state of the resource potentials, achievements and various issues related to the power generation in India. The growing concern over environmental degradation caused by fossil fuel based systems, opposition to large hydropower projects on grounds of displacement of land and population, environmental problems with nuclear fuel based systems and the ever-rising shortage of power highlights the need for tapping alternate energy sources for power generation. Amongst the alternate sources utilization of hydropower on a smaller scale (small, mini and micro hydropower) has become the thrust area for sustainable growth in the power sector. Hydropower is an economical and environmentally clean source of renewable energy abundantly available in hilly regions of India. Hydropower stations have an inherent ability for instantaneous starting, stopping, load variations, etc., and help in improving the reliability of power system.Huge hydropower potential in India, yet to be explored is located at inaccessible mountainous region. However, development of this potential is challenging due to difficult and inaccessible terrain profile. Paper presents application of remote sensing data for identification and selection of probable site for hydropower projects. The algorithm for identification and assessment of water resources and its perennial is developed in Visual Basic (VB) platform and it is successfully applied for IRS-1D, LISS III Geo-coded False Color Composite (FCC) satellite image for plain as well as hilly and mountainous regions. Classification of satellite image in to different objects is modeled as the task of clustering based on the intensity of R-G-B values of pixels. Results obtained are presented and compared with the Survey of India Toposheets (53K/2, 53K/3 and 53J/16). Use of Remote sensing data provides a scientific method of hydropower identification and assessment. 相似文献
17.
18.
19.
动态规划法在水电站厂内经济运行中的应用 总被引:9,自引:1,他引:9
利用动态规划建立了水电站厂内经济运行有功负荷分配数学模型。详细分析了动态规划法应用于水电站厂内经济运行的实施方案。方案同时考虑了机组检修和振动对有功负荷分配的影响。结合刘家峡水电站进行实例计算,结果表明,对机组台数较少的水电站,基于动态规划的水电站厂内经济运行实施方案不仅能够提高经济效益,而且能够保证系统运行的实时性。 相似文献