The nodes of control stage are complemented by plc , except the node of control center by pc . nodes are connected to can bus through the adapter of intelligent network , resulting in timely , exact and reliable transfer of multifold main architecture network data 该系统分为控制级和设备级两层，控制级节点中，除调度中心节点使用pc机外，其余节点都由可编程序控制器( plc )完成。节点通过智能网络适配器连接到can总线上，从而实现了多主结构网络数据的及时、准确、可靠传递。
Das ( dispatch automation system ) has been installed in different levels of dispatching centers in power system , especially which are based on micro - computers . because of its high performs / price ratio , das can be used on regional and provincial dispatching center 电力系统的各级调度中心已经比较普遍地设置了调度自动化系统，特别是采用了以微型机算机和小型计算机为基础的调度自动化系统，以它的高性能价格比，在地方调度中心和省级调度中心等得到了广泛应用。
The services of electric power communication network have already expanded from telephone scheduling and transmitting data in low speed to digital user ' s service with high speed and great capacity , such as computer internet , wide area network and video transmission , etc . its structure has already developed from simple star topology , which is used to serve schedular center , to today ' s multicenter network to assure that the network can serve the requirement of increasing transmission of electric power information 电力通信网的业务已从调度电话、低速率远动数据传送扩展到高速、数字化、大容量的用户业务，例如计算机互联网、广域网、视频传送等。电力通信网的结构也已从单一服务于调度中心的简单星形方式发展到今天多中心的网状网络，以保证能为日益增长的电力信息传输需求服务。
The instrument has been applied to spot construction for the first time on the construction site of commanding and dispatching center of channeling water from huanghe river in wanjiazhai of shanxi . digital and sensing technology is employed to accomplish the dual open loop control over the tension of prestressing tendon . because the traditional technology of prestressing construction is improved , construction accuracy and efficiency are greatly rais ed 智能预应力张拉仪是能与普通张拉设备配套重复使用的智能化显示与控制仪表，是本课题组研制的专利产品，本文首次在山西省万家寨引黄工程控制调度中心施工现场将智能预应力张拉仪应用于现场施工中，利用数字传感技术实现了对预应力筋张拉的双重开环控制，改进了传统的预应力施工工艺，大大提高了预应力施工的精度和效率，从而有效地避免了工程事故的发生。
Phaser including phasor of generators and phasor of bus voltage are most important state variables that reflect stability of power systerm . if it can be measured at real time , dispatcher adopts in effect controlling step based on phasor such that all generators can still be synchronously operated to do this , it is necessary to messure the phasor of generators and to send . them to the power system control center 相角(包括发电机的功角和母线电压相角)是反映系统稳定性的最主要的状态量，如果它能够被实时测量，可以根据相角信息采取有效的控制措施，从而使得发电机群仍然能够保持同步。为此，必须测量各发电机的功角，并把此信息送到调度中心。
With the development of communications and network technology , more and more power control systems are connected into the power grid . the data interchange among dispatch center , electric plant , substation and customers is increasing quickly . it ’ s a great challenge for the security and reliability of the power network and control systems 随着通信技术和网络技术的发展,接入调度数据网的系统越来越多,调度中心、电厂、变电站、用户等之间进行的数据交换也越来越频繁,这对电力监控系统和数据网络的安全性、可靠性和实时性提出了新的挑战。
With the capability of electrical system increasing , the former device can not yet satisfy what the dispatching automation asks for the remote terminal unit on reliability , rapidity and accuracy . the new measurement and control device , which undertakes the task of measurement and control , is one kernel part in the bay of substation automation system 为了保证供电的质量和电力系统的可靠性和经济性，系统的调度中心必须及时而准确地掌握整个系统的运行情况，随时进行分析，作出正确的判断和决策，必要时采取相应的措施，及时处理事故和异常情况，以保证电力系统安全、经济、可靠地运行。
With the fantastic advancement of the police work environment and improvement of the police dispatch - command system , customers pay more attention and demand on it . one of the most important demands is that the trunked communication system should offer faultless dispatch - command function and set the identical dispatch center 随着公安工作环境的发展,公安调度指挥系统的进步,用户对集群系统提出了更高的要求,其中重要部分之一是要求集群通讯系统提供完善的调度指挥功能,设置统一调度中心。
This paper introduces control area network ( can ) into intelligent reclose controller , so it is very easy to construct multi - master system and multi - machine backup system . in feeder automation , after the intelligent reclose controller isolate faults , controller use the can to report fault message to dispatch center , helping determining the reason and fault point 将can总线引入重合控制器，不仅实现控制单元的多主式通讯系统及多主机备份，而且往馈线自动化系统中，在重合控制器无信道自动隔离故障的基础上，实现故障信息的汇总，便于调度中心及时的掌握故障原因及查找故障点。
With the development of the power industry , the power system , the computer technique and the communication technique , the synthetic automatization of transformer substation has become a pop topic and caused the attentions of all sections in the power industry , and it has also become one of emphases that the power industry pushes the technique progress , it is because that : with the realization of the synthetic automatization of transformer substation , the safety of power network and the run level of economy can be improved , and the investment of foundation construction can be reduced ; with the increase of the complexity of power network , in order to hold the run state of the power network and the transformer substation in time , all levels of control center should take more information ; to improve the controllability of the transformer substation , it is required to adopt more remote concentrated control 、 concentrated operation , and anti - accident measures 随着我国电力工业和电力系统、计算机技术和通讯技术的发展,变电站综合自动化成为热门话题,引起了电力工业各部门的注意和重视,并成为当前我国电力工业推行技术进步的重点之一。之所以如此,是因为:实现变电站的综合自动化,可以提高电网的安全、经济运行水平,减少基建投资,电网复杂程度的增加,各级调度中心要求更多的信息,以便于及时掌握电网及变电站的运行情况为了提高变电站的可控性,要求采用更多的远方集中控制、集中操作和反事故措施。
