| With economic development, the load rate substation is also growing sphere of influenceis also growing, once the accident consequences will be very serious: ranging from causingdamage to the equipment, while power blackouts, and even cause personal injury. Therefore,anti-misuse of power system operating system is particularly important, modern design of thepower system generally installed a lot of equipment or system to prevent misuse. At present,China’s substation operating system error prevention There are two major forms:Microcomputer five independent defense system, as well as the rapid development ofintegrated five anti subsystem. Although the two systems have different features, but there areinsurmountable disadvantage: one can not be achieved in real time the actual location of thesite; Second rely offline, you need to go to the site with staff to collect information oncomputer key, you can not operate in real-time tracking implementation; third is to prevent alltypes of "walking away empty" setting so that locks many styles, cumbersome operation,reliability is not high. In recent years, increasing the grid size and lowering the efficiency ofoperating companies increasingly clear idea of conflict, how to control labor costs, reducingoperation and maintenance workload while continuing to improve operational accuracy anderror lockout prevention rate is today grid Construction of new topics facing.With the rapid development of electronic technology, communication technology,computer technology, especially the use of digital substation technology, making thesubstation automation system function more and more mature, more functional, faster andfaster response, laid five anti-mode The recent study technology base. This topic engineeringbased in Jiangmen instance, focuses on the substation on-line application system based onfive anti-GOOSE technology. The system is based on IEC61850standard, using threeanti-misuse designed to achieve full interoperability features stand. Station control layerimplementation and operation of the anti-logic blocking the station ticket order atresia, stationlevel host implementation and monitoring device for spacing layer five anti-lock nodemonitoring and control via IEC61850MMS protocol; spacer layer of a network through apublic network and MMS GOOSE Network so GOOSE realize the station interlockingspacers, enabling the prevention of unexpected logic blocking the whole station; equipmentlayer with relatively independent from the control form, using the unit of electrical lockout.Organic components connected line five anti-system, through the whole station electricalequipment (including knife motor power equipment, temporary ground piles, manual knife,high-pressure door and mesh doors, etc.) on-line monitoring, with success after rehearsal reserved In the five anti workstation operating procedures, followed by an open vote inaccordance with the work of all levels of electrical operation. If the operation does not meetthe target of the technical requirements of the objective conditions change, the system willimmediately interrupt the remaining operational tasks automatically, use the system to achieveoperating online atresia. Staff need to carry a computer key and mechanical locks to go to theoperating site, the system according to the actual situation, the electrical operating circuitlockout and fully automated monitoring device specific instructions from the output,simplifying workflow field operation personnel. |
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