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临沧地调经TASE.2向云南中调转发数据时,转出的模拟量"省网下网总加"突然发生跳变,变大为正常值的数百上千倍。本文对此提出了一种解决方案,用来检出、记录和屏蔽跳变数据,分析、定位系统发生数据跳变的环节和原因,并对未来TASE.2错误排查提出了建议。 相似文献
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TASE.2在电力系统中已经有一些应用,但大多只使用了协议中的功能块1和2,仅限于普通实时数据的传递,未能完全发挥出TASE.2协议的优点。本文充分研究了TASE.2标准中较少使用的5、6、7、8、9功能控制块,描述了它们对应的数据模型以及映射到的MMS服务,利用它们能够实现设备控制、程序控制、事件通知、计划交换、时间序列数据等更丰富的数据交换功能,从而证明TASE.2协议完全能够在电力自动化系统中发挥更重要的作用。 相似文献
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新一代基于光纤以太网的SCADA系统——关于电网调度系统及其体系结构研讨 总被引:10,自引:1,他引:9
介绍了网络电力自动化系统模型,基于光纤以太网的SCADA系统,IEC TC57远动通信规约,TASE.2的控制中心、体系结构,以及电力对象及元数据交换模型,同时说明了建设基于IEC TC57TCA体系结构的光纤以太网SCADA的必要性和紧迫性,简要地解释了各种相关术语。 相似文献
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介绍了江苏南京供电公司能量管理系统(EMS)、调度管理系统(DMS)和控制中心的现状,针对南京调度系统的现状提出了4种EMS、DMS与控制中心站的通信方式:由变电站远程测控终端(RTU)直接送往相关的主站系统;TASE.2协议的计算机通信;常规远动规约转发方式;网络规约通信方式。通过对几种方式的比较,决定采取网络规约通信方式,并分析了该方式的优点,阐述了该方式在南京供电系统的实施步骤。 相似文献
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一种基于UCA体系的网络化远动通信结构 总被引:4,自引:0,他引:4
UCA为控制中心之间和变电站及馈线中的实时现场设备之间提出了互操作模型,但是对于远动协议没有确定的模型。文中概括了现有电力系统远动通信协议中存在的一些缺陷;分析了UCA两个模型分别用于网络化远动通信方案的优缺点。最后结合两种模型,提出了一种新的面向对象电力系统信息模型(O^2PSIM)。O^2PSIM采用统一对象对电力系统建模,并引入适配层,通过统一的适配映射,能够兼容各种对象,并能适应新的CORBA,XML等技术应用。通过统一建模,最终实现EMS和变电站的无缝通信,还可以满足今后远动通信对网络安全的要求。 相似文献
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电力系统无缝通信系统体系 总被引:24,自引:0,他引:24
介绍IEC TC57正在制定的无缝通信协标准的名称为“变电站和控制中心通过61850通信(Communication Substation-Control Center via 61850)”是以IEC 61850为基础,而不是以TASE.2为基础。并介绍了IEC 61850的特点和采用后的效益,说明为什么IEC TC57采用IEC61850作为制定无缝通信协议标准的基础。目的在于对“新一代基于光纤以太网的SCADA系统”一文某些提法提出建议。并说明IEC61850一般模型和CIM IEC61970兼容、支持互用性、设备互联、工程化和可操作性。 相似文献
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Communication technology represents a very important parameter in the design of computer based power system control systems. In this paper, a model conveying different maturity levels of the communication capabilities is introduced. The model provides support, complementary to the traditional OSI model, and the model classifies the maturity in a few discrete steps along two dimensions, respectively. The approach has successfully been applied to categorize the state-of-the-practice of existing concepts for control center communications. The work has opened up new possibilities for further research of communication in power system control 相似文献
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One of the key concepts of a future“smart grid” is to combine modern communication technology with an improved electric grid to enable energy consumers to exchange information with energy suppliers in ... 相似文献
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Reactive and time-critical software is used when safety is the issue and the margin for errors is narrow. The issues of timing, concurrency, interprocess communication, resource sharing and external device handling are very important. Graduates who understand how the software will interact with the operating system and the environment are in high demand. In an effort to provide students with such knowledge, the Embry-Riddle Aeronautical University has been offering real-time courses. These courses use the standard UNIX platform and Ada as the implementation language to support concurrency and software engineering practices. A dedicated real-time laboratory was also designed. The laboratory contains hardware (complete computers and interface devices) for teaching both soft and hard real-time concepts. Resources include a wide variety of hardware platforms operating different UNIX-like operating systems. The real-time laboratory supports time-critical software development with full pre-emptiveness and deterministic behavior. Using the laboratory, the students can experiment. This aids in learning real-time concepts. The experiments address such concepts as: reactive and time-critical programming, concurrency of programming tasks, multiprocessing and multithreaded applications, signals and operating system interfaces, resource contention constructs, the implementation of concurrent programs, communication protocols and reactive input/output interfaces 相似文献
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The design of an optical transmitter/receiver system, suitable as an educational project for the demonstration of low-noise wireless voice communication in the laboratory, is described. The system, having a range in excess of 8 m, uses a VCO (voltage-controlled oscillator), operating at the center frequency of 100 kHz, to achieve voice data encoding. Optical decoding at the receiver is performed using a conventional phase-locked loop (PLL) circuit. As an optoelectronics design project, the system successfully integrates the concepts of free-space optical communication, frequency modulation, and analog electronics design, which are common to infrared (IR) remote control devices 相似文献
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随着智能电网建设及信息化容灾建设,建立大容量、高速实时、安全可靠的数据通信网络成为电力通信发展的关键问题之一.文章分析了十二五面临的新形势,其中新挑战包括更大带宽需求、更高质量要求、更高安全要求、更广覆盖广度,新机遇包括设备硬件设计制造水平不断进步、软件协议不断完善.文章分析了数据通信网的建设目标及建设原则,提出了数据... 相似文献
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