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Distribution automation technology and system structure


Susceptible to block transmission, frequency applications in some areas more difficult. Choose what kind of communication should be based around the characteristics into account, a way can be unified network can also be layered several ways to consider,herve leger toronto, the key is to meet performance targets under the premise of minimizing system cost 2. 2 system features power distribution automation system can be summarized as feeder automation system FA (FeederAutomation), automated mapping / facilities management / geographic information system distribution (AM / FM / GIS), user information system CIS (CustomerInformationSys-tern), distribution system high-level application software, and other computer systems interface (networking) five sub-feeder feeder automation system 2.2.1 basic automation system, the core task is to achieve the feed line of data acquisition and supervisory control (scADA) and feed power line fault location, fault isolation (AS), non-failure range from the restoration of electricity (AR). Only when the AS, AR function, in order to make the distribution automation system to achieve improved power quality, reduce outage time, reduce the scope of power outages and improve reliability of power supply to the user's purpose. 2. !. 2 automated mapping / facilities management / geographic information system of its distribution function is a combination of CIS and distribution SCADA, information on the dynamic management of power distribution equipment,Salvatore Ferragamo outlet, corresponds exactly with the actual location of the power distribution network graph embedded in the background map ; and power cables, substation, distribution lines, switching the wiring and equipment, and other written materials to achieve the integrated management and graphic converter to generate auxiliary graphics. 2.2.3 User Information System (CIS) CIS reflect information about the user such as user name, user ID, phone number, power priority, the user area, neighborhood, owned substation and feeder and so on. And to achieve the user automatic meter reading and call handling customer complaints. 2.2.4 Distribution system level software applications for high-level power distribution systems power distribution network topology analysis, distribution system state estimation, the trend of online distribution system calculations, dynamic calculation of line losses, load forecasting, voltage / reactive power optimization. Work orders for tickets by management, operator training simulation system. 2.2.5 The interface with other computer systems (networking) to achieve automation and scheduling systems, MIS systems, load control system network. 3 application example of a distribution automation system application example is the Shijiazhuang city network distribution automation system, which is a public variable sets, column switch and opening and closing device for monitoring an object, using the whole local area wireless communications and wired communications a combination of communication, the distribution of equipment for remote online monitoring and control of a distributed network system, the distribution control center (PZ98 a DMS master), communications controller (CCU,vibram five fingers outlet,, feeder automation terminal (FTu) and transformer station monitoring terminal (TTU) as shown in Figure 3. * 29 * a 150 power plant unit analysis of the reasons for low vacuum vacuum power plant unit analysis of the reasons for low power and security to the main reason is the need to be resolved 15o power plant according to the article one of the actual situation, make a few suggestions and discuss with you. 1 About 150 power plants built in 1968, from 1970 to 1974 four-cylinder impulse 50MW condensing steam unit built in phases .1993 and production of a Taiwan 6o00kW units, each unit is equipped with two circulating pumps, two water jet air ejector and a water injection platform 3O00m hyperbolic natural draft cooling tower type 2 health 150 power plant has four generating units from the production 2O years time, more serious aging unit, although a series of measures, but in recent years, due to the vacuum is low, limit load are frequent, generally occurs in May to September, according to statistics, from 1982 to 1984 in several was asked, l ~ 4 machines have both limit loads, l machine limit negative 3 Shijiazhuang city network distribution automation system intended to June 1998 the system has achieved the following successful non-fault segment in 1rain automatically restore power. to: c | a INTRANET function,herve leger sale, available online to send a. CIS system as a platform for SCADA cloth with data transfer, Internet and other customers through the INTERNET system of 78 distribution transformers, 1l pillar on the switch into the browser can access WEB server with the transfer systems, the measured line of supervisory control. browse the distribution system data, charts and other information. b. feeder fault auto positioning, auto-isolation, the load supply line ring hand in hand with the ability to switch automatically determine,MBTシューズ 販売店, so that ' Received Date: 1998Og - lO) · 30 · / to state a ~
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