在信息化的发展过程中,智能化、数字化的信息技术已成为电厂建设的重要发展方向.建设智慧电厂能让电力企业提高生产效率,同时也能实现节能减排和环境保护,从而大幅提高企业的核心竞争力,实现降低发电成本、提高上网电量和减少设备故障,最终实现电厂的安全、经济运行和节能增效.本文对智慧电厂的系统架构、数据架构、网络架构和功能架构等方面进行了详细的论述,为智慧电厂的建设提供了技术支撑.

Cracks are one of the early manifestations of concrete building diseases. Timely detection and repair of cracks is very important for building safety. In this paper, the holistically-nested edge detection(HED) network is applied to crack detection to realize the preliminary detection of concrete cracks. Compared with the traditional Canny operator, the cracks detected by HED are clearer. In view of the false detection caused by the interference of impurity areas when HED detects cracks, k-means algorithm is used to cluster and divide the HED detection results according to the pixel gray value, so as to obtain the cracks, background and impurity areas. The impurity area is modified into the background area to remove the impurity interference. Compared with the HED detection results, the precision of the detection results after k-means clustering is improved to 86.533%, and the recall rate is slightly reduced, but it is still as high as 88.791%.

Accurate wind speed prediction can effectively improve the power generation of wind turbines and realize the efficient use of wind energy. However, a large number of wind turbines exist in a wind farm, and complex temporal and spatial dependencies exist among the wind speeds of wind turbines, leading to difficulties in improving the accuracy of wind speed prediction. Therefore, this paper proposed a correlation analysis method by combining the whale optimization algorithm and hybrid copula function and constructed a wind speed prediction model based on spatiotemporal analysis. Mixing multiple single-copula functions and using a whale optimization algorithm for parameter solving can improve the level of correlation analysis and lay the foundation for obtaining accurate wind speed predictions. Taking the actual operation data of wind turbines in a certain area of My country as an example, the single copula prediction results are compared with the mixed copula prediction results. Experimental results show that the method proposed in this paper can effectively analyze the wind speed correlation of wind turbines and improve the accuracy of wind speed prediction.

本文从智慧电厂特点阐述开始,提出智慧电厂的整体设计架构及技术发展建议,通过一体化大数据管控平台,实现智慧设备及控制层、智慧设备管理及诊断层、智慧运维及管理层、智慧经营及决策层之间的融合,实现发电过程的智能控制、智能安全、智能管理.

从网络拓扑、网段划分、电源、电缆、电压降、信号衰减、网络实时性等方面,结合某火电厂海水淡化控制系统的具体设计,分析FF H1总线在电厂设计中应遵循的设计原则和方法.

介绍了现场总线技术的优点及其在国内外电厂的应用,并以华电莱州电厂(2×1050 MW)机组水网控制系统为例,阐述了现场总线的实际应用,探讨了应用过程中需考虑的问题. 随着现场总线技术的不断成熟,支持现场总线技术协议的产品越来越多,现场总线技术的应用也越来越广泛.与传统的DCS相比,现场总线技术具有如下特点.

According the characteristic of the Fieldbus technology, it particularly introduce the design and application of the Fieldbus in water treatment control system of Laizhou power plant.

The theory of plasma non-oil ignition technology and the differences between the control logic and the traditional oil ignition technology are introduced. The good effect and benefit after the implementation of the new technology is analyzed.