Design of Power Supply for On-line Monitoring System of Transmission Lines

This paper uses CT to gain the energy directly from the high-voltage transmission line, to address the problem of power supply for monitoring system in high voltage side of transmission line. The draw-out power coil can induce voltage from the transmission line, using single-chip microcomputer to analog and output PMW wave to control the charging module, provides a stable 3.4 V DC voltage to the load, and solve the problem of easy saturating of core. The power supply based on this kind of draw-out power coil has undergone the overall testing, and it is verified-showing that it can properly work in a non-saturated status within the current range of 50 - 1000 A, and provide a stable output. The equipment also design protection circuit to improve the reliability to avid the impacts of the impulse current or short-circuit current. It effectively solves the problem of power supply for On-line Monitoring System of Transmission.

An Automatic Monitoring and Alarming Method for the Power Supply of Weather Radars

As weather radar stations require headroom environment to operate,they were mostly built on highlands which are usually unattended.The mains supply is relatively poor,and the risk of radar stoppages due to power outage is therefore ever-present.As such,the radar construction program is used to build a complementary security video monitoring system.By collecting monitoring images of the regulated power supply in real-time from power supply auto transfer systems in distribution rooms and radar transceiver rooms,using Spearman’s rank correlation coefficient to analyse pixel variation trends,and supplementing statistical analysis of pixel characteristics difference to eliminate misjudgments resulting from low image contrast in special scenarios,a software can be developed through C#.It has the function of automatically monitoring mains supply and alerting staff on duty to handle the power outage in a timely manner via text message so that any potential risk is neutralised before it can cause damage.This monitoring and auto-alerting approach is generally applicable to unattended rooms with large amounts of electronical equipment.

A power-quality monitoring and assessment system for high-speed railways based on train-network-data center integration

In recent years,with the rapid development of high-speed railways(HSRs),power interruptions or disturbances in traction power supply systems have become increasingly dangerous.However,it is often impossible to detect these faults immediately through single-point monitoring or collecting data after accidents.To coordinate the power quality data of both traction power supply systems(TPSSs)and high-speed trains(HSTs),a monitoring and assessing system is proposed to access the power quality issues on HSRs.By integrating train monitoring,traction substation monitoring and data center,this monitoring system not only realizes the real-time monitoring of operational behaviors for both TPSSs and HSTs,but also conducts a comprehensive assessment of operational quality for train-network systems.Based on a large number of monitoring data,the field measurements show that this real-time monitoring system is effective for monitoring and evaluating a traction-network system.

Intelligent Examination Monitoring and Maintenance for the Safety of Operation of Flexible Manufacturing Systems

Based on the system of electric power supply for flexible manufacturing systems (FMS), a study has been carried out on the intelligent safety examination, monitoring and maintenance of its running environment. On the basis of the specific feature of the power supply network of an FMS, real time monitoring system of the power supply network and the fault diagnostic expert system for the power equipment have been designed. This system can diagnose not only definite fault phenomena, but also fuzzy, uncertain fault phenomena as well. Fault diagnostic knowledge base for the power equipment has been founded hierarchy architecture model and the method of fault tree analysis. Feasibility of this system has been proved by computer simulation.

Analysis of Condition-Based Maintenance for High-Valtage Electric Power

The development process of high-voltage electric power equipment maintenance was introduced. It is pointed out that the trend of high-voltage electric power equipment maintenance is so called condition-based maintenance. With the development of computer technology and sensors, on-line monitoring of high-voltage electric power equipment has developed rapidly. By introducing the main principle of Schering bridge to measure tanδ, the way of on-line monitoring of high-voltage electric power equipment was explained. Difference methods of on-line monitoring of insulation parameters for 35 kV substation were discussed. Finally, the shortcomings as well as its tendency of on-line monitoring were analyzed.

Shaking table test study on performance and functionality of a typical telecommunication room after earthquakes

Large numbers of basic transceiver stations,where the telecommunication room is one of the main components,comprise an important part of the telecommunication system.After earthquakes,considerable economic loss from telecommunication systems is often associated with seismic damage and functional loss of the telecommunication room.However,research related to this has been limited.In this study,shaking table tests were conducted for a full-scale typical telecommunication room,including a light-steel house and the necessary communication and power supply equipment.The tests not only focused on the seismic damage to all the structures but also considered the functions of the communication and power supply of the equipment.The interactions between these facilities and their effects on communication function were also investigated.Compared with the damage to structures,the interruption of the power supply due to earthquakes is a weak link.Finally,the damage indexes,together with their threshold values of different damage states for the communication and power supply equipment,were derived from the test results.The results of this research can contribute to the literature gaps regarding seismic performance studies of telecommunication rooms,and can serve as a valuable reference for future research on its seismic fragility and economic losses evaluation.

一种智能供配电测试设备的设计与实现

卫星供电系统测试现状是使用成熟的Agilent 34980A产品和配电器设备进行集成。针对供电测试系统集成化及智能化的测试需求,提出了一种智能供配电测试设备设计方案——集中供电监控器。它由通路继电器模块、指令发送模块、遥测状态采集模块、状态显示模块组成,具有集成度高、可靠性高、通用性强、维修性好等特点,实现了供配电测试设备的模块化、通用化、标准化、小型化,并实现了远程监控、智能监控等功能。目前已在卫星平台测试系统中得到应用,为卫星自动化测试系统起到了有力的支持作用。

Power-One通信电源监控系统通信协议破解

根据数据链路层通信协议的一般格式,对串口监听工具截取的Power-One通信电源监控系统的通信信息进行了逻辑推理和分析,破解了其通信协议的格式和各种通信命令。实际验证表明,破解结果正确无误。研究结果对于我国通信电源分布式监控系统通信协议的设计和实现,具有一定的借鉴意义。

Power-One通信电源监控系统通信协议破解

根据数据链路层通信协议的一般格式,对串口监听工具截取的Power-One通信电源监控系统中的通信信息进行了逻辑推理和分析,破解了其通信协议的格式和各种通信命令。实验表明,破解结果正确无误。对于通信电源分布式监控系统通信协议的设计和实现,具有一定的借鉴意义。

基于电力系统高压生产设备电气故障自动化监测技术

本文提出了一种基于电力系统高压设备的电气故障自动化监测技术,通过运维结构模型和链路均衡控制模型优化故障信息分析,利用三维数据重组和高阶统计量方法提取故障特征,并通过三维相空间重构实现故障数据的可视化和自动化诊断。仿真实验结果显示,该技术能准确快速检测和定位故障,显著提升电力系统的自动化监测能力。

应用PowerDesigner设计电信动力监控系统数据库

本文详细介绍了数据建模的原则和建模工具PowerDesigner的使用方法和功能,并结合电信动力监控系统数据库设计的实际情况,就数据库设计的方法及注意问题作了较为详细的论述。

备用局部通风机电源失电监测报警系统研究与应用

旗山煤矿为提高掘进工作面局部供风系统的可靠性和稳定性,通过分析研究,利用现有的井下广播系统、安全监测监控系统,以及自行研制的备用局部通风机电源失电监测报警控制器,形成了具有旗山特色的备用局部通风机电源失电监测报警系统,其应用有效地减少或避免了掘进工作面局部通风机双机同时停运事故,促进了矿井安全生产的进一步发展。

基于人工智能的电力设备状态监测系统设计

由于电力设备的可靠运行对电网安全至关重要,提出一种基于人工智能的电力设备状态监测系统,融合卷积神经网络(Convolutional Neural Network,CNN)和支持向量机(Support Vector Machine,SVM)算法,实现设备健康状态评估和故障诊断。该系统包括数据采集、智能分析、结果展示3个模块。通过实验证实该系统在状态评估准确率、故障诊断准确率、诊断时间等方面均优于传统方法。研究结果为电力设备智能化运维提供了新的技术方案,有助于提升电网可靠性和经济性。

基于Gabor变换的电力通信电源分布式监控方法

电力通信电源信号具有非平稳的特性,导致对其监控输出的信号在分布上难以实现有效收敛,因此提出基于Gabor变换的电力通信电源分布式监控方法。选择高灵敏度、宽频带的传感器捕获电力通信数据,基于数据采集卡将传感器输出的模拟信号转换为数字信号,通过执行嵌入的Gabor变换和滤波器组处理,监控提取关键时频信息。利用Gabor变换处理电力通信电源信号,根据信号的时频分布特性,基于改进的香农熵值量化其时频聚集度。在测试结果中,监控输出的信号在分布上能够有效收敛,具有良好的监控效果。

面向移动终端的电力系统设备状态在线监测系统

为提高监测便利性,在状态监测系统中添加移动终端,设计一个面向移动终端的电力系统设备状态在线监测系统。建立包括数据采集、传输、分析与表现的系统整体框架;分别对多通道数据采集传感器开关电路、边界网关、端口间数据传输模块进行设计;检测电力系统设备故障存在性与严重性,对电力系统设备状态的不同故障程度进行分类;利用移动终端设计设备状态在线安全监测方法判断数据是否安全传输到移动终端。实验结果显示,该系统可以通过传感器完整地收集电力系统设备的数据,并对其进行有效分析,该系统在设备状态的监测方面具备可行性。

基于人工智能的通信电源监控数据采集方法研究

传统的通信电源监控系统在实际进行数据采集时不仅耗时较多,还在准确率方面存在着较多缺陷。为此,需要将人工智能技术融入其中,结合实际需求细化通信电源监控数据采集流程与内容,进而保证此类系统的运行效果。简述了融合人工智能的常见通信电源监控数据采集方式,并基于对其系统架构的分析,从硬件与软件两个角度出发,阐述了基于人工智能的通信电源监控数据采集系统的设计要点,希望能够为通信电源设计与使用提供一些帮助。

配电自动化终端设备在电力配网自动化中的应用

本研究探讨了配电自动化终端设备在电力配网自动化中的应用,主要包括配电终端单元(Distributed Terminal Unit,DTU)、馈线终端单元(Feeder Terminal Unit,FTU)和变电站终端单元(Transformer Terminal Unit,TTU)的功能与技术原理。这些设备通过实时监测、故障定位与自动隔离,实现了配网的智能化管理。研究表明,配电自动化终端设备对提升电网运行效率、缩短停电时间具有重要意义。

辐射环境监测自动站供电系统的配置及维护研究

辐射环境监测是我国环境建设和生态文明建设中的重要内容,随之兴起的辐射环境监测自动站则成为辐射环境监测的重点。基于理论分析,明确辐射环境监测自动站的具体运行需求,建立在不间断供电的基础上,分析了不间断供电系统(Uninterruptable Power System,UPS)的具体配置方案与核心原理,结合具体的案例,明确了辐射环境监测自动站供电系统的运行逻辑与规划方案,并提出了多元化的维护政策,以保证辐射环境监测自动站的供电稳定运行。

智慧供配电系统的研究

全面探讨了智慧供配电系统的基本组成、关键技术要素及其面临的挑战,进而提出了智慧供配电系统运行策略。智慧供配电系统由高压供电系统、低压配电系统及变配电所三大核心部分组成,通过集成实时监测、智能控制、故障预警等关键技术,实现了供配电系统的高效、安全、智能化运行。

PowerMaster智能高频开关电力操作电源系统的原理分析

直流电源是电力系统的重要设备,作为发电厂变电站自动控制、保护、开关分合、事故照明等的重要电源,其性能和质量的好坏直接关系到电网的稳定运行和设备安全。