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Automatic Fault Prediction of Wind Turbine Main Bearing Based on scada Data and Artificial Neural Network

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Open Journal of Applied Sciences 2018年第6期8卷 211-225页

作者： Zhenyou Zhang Renewables & Utilities Kongsberg Digital AS Trondheim Norway

As the demand for wind energy continues to grow at exponential rate, reducing operation and maintenance (O & M) costs and improving reliability have become top priorities in wind turbine maintenance strategies. Prediction of wind turbine failures before they reach a catastrophic stage is critical to reduce the O & M cost due to unnecessary scheduled maintenance. A scada-data based condition monitoring system, which takes advantage of data already collected at the wind turbine controller, is a cost-effective way to monitor wind turbines for early warning of failures. This article proposes a methodology of fault prediction and automatically generating warning and alarm for wind turbine main bearings based on stored scada data using Artificial Neural Network (ANN). The ANN model of turbine main bearing normal behavior is established and then the deviation between estimated and actual values of the parameter is calculated. Furthermore, a method has been developed to generate early warning and alarm and avoid false warnings and alarms based on the deviation. In this way, wind farm operators are able to have enough time to plan maintenance, and thus, unanticipated downtime can be avoided and O & M costs can be reduced.

关键词： Artificial Neural Network scada Data Wind Turbine Automatic Fault Pre-diction

Simple, Flexible, and Interoperable scada System Based on Agent Technology

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维普期刊数据库

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Intelligent Control and Automation 2015年第3期6卷 184-199页

作者： Hosny Abbas Samir Shaheen Mohammed Amin Department of Electrical Engineering Assiut University Assiut Egypt Department of Computer Engineering Cairo University Giza Egypt

scada (Supervisory Control and Data Acquisition) is concerned with gathering process information from industrial control processes found in utilities such as power grids, water networks, transportation, manufacturing, etc., to provide the human operators with the required real-time access to industrial processes to be monitored and controlled either locally (on-site)or remotely (i.e., through Internet). Conventional solutions such as custom scada packages, custom communication protocols, and centralized architectures are no longer appropriate for engineering this type of systems because of their highly distribution and their uncertain continuously changing working environments. Multi-agent systems (MAS) appeared as a new architectural style for engineering complex and highly dynamic applications such as scada systems. In this paper, we propose an approach for simply developing flexible and interoperable scada systems based on the integration of MAS and OPC process protocol. The proposed scada system has the following advantages: 1) simple (easier to be implemented);2) flexible (able to adapt to its environment dynamic changes);and 3) interoperable (relative to the underlying control systems, which belongs to diverse of vendors). The applicability of the proposed approach is demonstrated by a real case study example carried out in a paper mill.

关键词： scada Real-Time Monitoring Process Control Agent Technology Multi-Agent Systems Open Process Control (OPC)

scada系统中主动实时数据库技术的研究与应用

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维普期刊数据库

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电力系统自动化 2004年第6期28卷 85-87页

作者：文本颖谈顺涛袁荣湘武汉大学电气工程学院湖北省武汉市430072

介绍了主动数据库技术,分析了scada系统中的基本主动事件,给出了由基本事件运算构成复杂事件的方法。提出了在scada系统中实现主动实时数据库的途径,并据此构造了scada系统主动实时数据库模型。通过典型实例研究了基于此模型的具体应用... 详细信息

介绍了主动数据库技术,分析了scada系统中的基本主动事件,给出了由基本事件运算构成复杂事件的方法。提出了在scada系统中实现主动实时数据库的途径,并据此构造了scada系统主动实时数据库模型。通过典型实例研究了基于此模型的具体应用。应用研究表明,采用主动实时数据库技术的scada系统具有较高的效率,并且数据库系统的性能大为提高。

关键词： scada 主动数据库实时数据库

Cost Optimization Modeling of Renewable Energy Sources in Smart-Grid Using scada

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Communications and Network 2021年第2期13卷 51-67页

作者： Nafisa Islam Warsame H. Ali Emmanuel S Kolawole John Fuller Pamela Obiomon John O. Attia Samir Abood Department of Electrical and Computer Engineering Prairie View A & M University Prairie View USA

In recent times, renewable energy production from renewable energy sources is an alternative way to fulfill the increased energy demands. However, the increasing energy demand rate places more pressure, leading to the termination of conventional energy resources. However, the cost of power generation from coal-fired plants is higher than the power generation’s price from renewable energy sources. This experiment is focused on cost optimization during power generation through pumped storage power plant and wind power plant. The entire modeling of cost optimization has been conducted in two parts. The mathematical modeling was done using MATLAB simulation while the hydro and wind power plant’s emulation was performed using scada (Supervisory control and data acquisition) designer implementation. The experiment was conducted using ranges of generated power from both power sources. The optimum combination of output power and cost from both generators is determined via MATLAB simulation within the assumed generated output power range. Secondly, the hydro-generator and wind generator’s emulation were executed individually through synchronizing the grid to determine each generator’s specification using scada designer, which provided the optimum power generation from both generators with the specific speed, aligning with results generated through MATLAB. Finally, the operational power cost (with no losses consideration) from MATLAB was compared with the local energy provider to determine the cost-efficiency. This experiment has provided the operational cost optimization of the hydro-wind combined power system with stable wind power generation using scada, which will ultimately assist in operations of large-scale power systems, remotely minimizing multi-area dynamic issues while maximizing the system efficiency.

关键词： Smart-Grid Cost Optimization Economic Dispatch scada Renewable Energy Sources MATLAB

成品油顺序输送首站发油系统典型scada逻辑流图探讨

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维普期刊数据库

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炼油技术与工程 2006年第2期36卷 50-53页

作者：李津中国石化集团洛阳石油化工工程公司河南省洛阳市471003

回顾了中国成品油管道工程建设与scada(Supervisory Control And Data Acquisition)系统运用的历史过程,介绍了成品油顺序输送首站典型流程,探讨了首站发油系统典型scada逻辑流图。

关键词：成品油顺序输送 scada 逻辑流图探讨

scada系统基础模型数据质量校核专家系统

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电子技术应用 2016年第S1期42卷 33-35页

作者：邓彬江伟郝蛟张宗包深圳供电局有限公司广东深圳518000

针对scada系统基础模型数据规模庞大、数据质量校核成本高的现状,建立了多维度数据质量校核体系,明确了校核流程及软件实现方案,开发了一套scada系统基础模型数据质量校核专家系统.实际应用表明,该系统能够高效地校核scada系统基础模型... 详细信息

针对scada系统基础模型数据规模庞大、数据质量校核成本高的现状,建立了多维度数据质量校核体系,明确了校核流程及软件实现方案,开发了一套scada系统基础模型数据质量校核专家系统.实际应用表明,该系统能够高效地校核scada系统基础模型数据质量,具有很好的应用前景和推广价值.

关键词： scada 数据质量自动校核专家系统

Design and Analysis of Com munication Network for Distributed scada System

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维普期刊数据库

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Journal of Modern Transportation 1999年第2期16卷 154-162页

作者：王倩钱清泉

This paper presents the design of hierarchical communication network for traction power supply supervisory control and data acquisition (scada) system. Some key points, such as data transmission synchronization, database distribution, data transformation, and the network communication optimization at the supervisory level of the communication network are discussed. At the control level, based on the specificity of communication lines for electrified railway, a structure of two layer ring telecommunication network and the efficient bi directional polling scheme in software design are utilized. Then, an analysis for the scheme under normal and disturbance conditions is given. By means of the scheme, software switching over at a fault point of a channel is realized automatically.

关键词： distribution scada communication network bi directional polling

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scada系统在自动传送线中的应用

制造业自动化 2013年第12期35卷 99-102页

作者：韦雪洁王俊红刘金梅王喜斌北华航天工业学院电子系廊坊065000

以石油输油管制管车间为例,文中介绍了一种基于以太网的自动传送线scada系统。该系统由现场采样设备、PLC和PC机三大部分组成,各部分之间通过以太网实现通信。系统主要实现对制管车间制管的自动化,控制由上位机和下位机两部分完成:下位... 详细信息

以石油输油管制管车间为例,文中介绍了一种基于以太网的自动传送线scada系统。该系统由现场采样设备、PLC和PC机三大部分组成,各部分之间通过以太网实现通信。系统主要实现对制管车间制管的自动化,控制由上位机和下位机两部分完成:下位机采用S7-300PLC进行设计,实现对倒运小车和钢管的位置进行数据采集和控制,实现钢管自动传送及各个工位的自动上料、自动下料功能同时兼具手动操作功能;上位机采用组态软件Wincc来设计,实现现场数据的远程实时监控。自运行以来,系统各项功能稳定,符合设计要求。

关键词： scada PLC 自动传送远程监控

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基于GPRS和以太网技术的scada系统

微计算机信息 2006年第2S期22卷 102-104页

作者：李圣良九江职业技术学院江西九江332007

GPRS是一种构建于GSM移动网络之上的通信新技术,可以提供中低速率的数据通信能力。本文介绍了GPRS技术和以太网在scada(远程监控和数据采集)系统中的应用,给出相应的系统结构与软硬件设计要点,说明了其广泛的应用领域与前景。

关键词： GPRS scada GSM 以太网