The invention provides an offline type dispatching operation ticket system and method based on field error prevention and simulated ticket training. The system is mainly composed of a main data server, a reserved data server, a plurality of work stations, a mobile terminal and related network equipment, and is characterized in that the main data server or the reserved data server is used for judging and processing an error prevention operation rule, sending operation alarming information to each work station at the same time, and storing historical and real-time data in a dispatching automation system OPEN3000, so that the synchronization of the data of each work station is realized; each work station is connected with the data server by a data source and needed data information is obtained and stored; the plurality of work stations comprise dispatcher work stations which are used by on-duty dispatchers and related administrative staff; the dispatcher work stations are used for finishing functions, such as simulation, checking, simulated preview, operation ticket management and information inquiry, image maintenance, of dispatching operation ticket.

Offline type dispatching operation ticket system and method based on field error prevention and simulated ticket training

The invention discloses a production system graphic ticketing method based on simulated rehearsal. The method comprises the following steps that (1) an in-station primary drawing of a transformer station is opened, a telemetering file E provided by a dispatching automation management system is analyzed, the state of current equipment is acquired, and the state of the equipment in the drawing is adjusted; (2) opening and closing are performed on a switch on the drawing, and whether operation is feasible or not is judged according to error-locking prevention logic; (3) simulated rehearsal is completed, and graphic ticketing is performed, wherein the operation items of an operation ticket are automatically brought in according to the steps of simulated rehearsal and cannot be modified, and content is automatically brought in from a task ticket and can be modified; (4) after the operation ticket is filled in and submitted, a dispatching task list and a power transformation task list are refreshed and saved. According to the production system graphic ticketing method, the simulated rehearsal technology is applied to a power transformation graphic ticketing function, so that the correctness and the risk pre-control level of switching operation are improved, and safe operation of a power grid is guaranteed.

Production system graphic ticketing method based on simulated rehearsal

The invention discloses a novel cable penetrating tube, which comprises a protective shell, wherein a laser coating is pasted on the surface of the protective shell through glue; a cable fixing tube is fixedly arranged on the inner wall of the protective shell through support plates; radiating chambers are arranged between the protective shell and the cable fixing tube; first fixed blocks are fixedly arranged on the cable fixing tube; second fixed blocks corresponding to the first fixed blocks are fixedly arranged on the protective shell; each adjusting device is movably sleeved with the corresponding first fixed block and second fixed block; and two ends of each adjusting device extend to the outside of the corresponding first fixed block and second fixed block respectively. The novel cable penetrating tube is provided with the adjusting devices, so that the novel cable penetrating tube can adapt to the cables with different thicknesses by manually controlling the lengths of adjusting screw rods; and the novel cable penetrating tube is convenient to use. Meanwhile, pulleys are arranged, so that the novel cable penetrating tube can play a role in dragging the cable during penetrating of the cable; the operation is convenient and fast; furthermore, the friction force is greatly reduced; and the phenomenon of sheath abrasion of the cable is avoided.

Novel cable penetrating tube

The invention relates to an SCD based protection-maintenance-security strategy automatic generation system and method. The system includes a human-computer interaction module completing human-computerinteraction, a model analysis module which generates a static virtual loop module associated with a maintenance task and obtains a soft pressure plate object corresponding to the maintenance task, astrategy deduction module which generates a rule example according to security rules and performs matching of the rule example with the soft pressure plate object to determine a soft pressure plate operation order, a security ticket generation module which matches a security ticket template with the soft pressure plate operation order to generate a security ticket, and a checking and monitoring module which obtains actual state change information of a security operation isolation point according to the static virtual loop module associated with the maintenance task, compares the actual state change information with content of the security ticket and gives alarm prompt if the actual state change information and the content of the security ticket are not consistent. Compared with the prior art, the SCD based protection-maintenance-security strategy automatic generation system and method can automatically generate the security ticket and perform an abnormity alarm to improve the operationsafety of a substation.

SCD based protection-maintenance-security strategy automatic generation system and method

The invention provides a PDPC-based power grid intelligent operation instruction ticket simulation method and system. According to the method, an operation instruction ticket is generated through operation task reasoning and scheduling instruction reasoning in sequence, in the operation task reasoning process, the scheduling operation tasks in the operation sequence buffer area are matched with the equipment operation state and the scheduling operation rules in sequence, and conclusion of the application rules is inserted into the rear portions of the scheduling operation tasks; in the scheduling instruction reasoning process, for the operation tasks of the operation task sequence, application objects and electrical equipment types are sequentially matched, and the application objects andthe electrical equipment types are converted into operation contents to complete a ticket simulation process of the operation tickets. The method is advantaged in that manual modification is not needed, problems of non-standard ticket filling and filling errors are avoided, ticket simulation automation is achieved, the percent of pass of the operation instruction tickets is increased, the releasetime is shortened, and power grid safety and enterprise benefits are guaranteed.

PDPC-based power grid intelligent operation instruction ticket simulation method and system

The invention provides a power grid dispatching intelligent maintenance order and operation order system which comprises a human-computer interface, a reasoning module, a maintenance order and operation order management module and an operation order rehearsing module The system and SCADA/EMS are integrated, an SCADA/EMS supporting platform is utilized to establish a database easily and mutually accessing to an operation order system and achieve maintenance of the database, frames and network analysis application software integration A maintenance schedule arranger and a power grid dispatcher can also perform order generation operation on a power grid and a factory station wiring diagram which are completely identical to the SCADA without hardware devices special for order generation, and great convenience is brought to daily work of the dispatcher

Power grid dispatching intelligent maintenance order and operation order system

The invention discloses a pulley used for laying and putting cables in a cable pipeline. The pulley comprises a pulley wheel, a pulley wheel bracket and a lifting operation rod; the pulley wheel is mounted on the pulley wheel bracket through a bolt and a bearing; the pulley bracket is provided with a cable sliding way and an arc-shaped clamping plate; the arc-shaped clamping plate is positioned below the cable sliding way; the central point of the inner diameter of the cable sliding way and the central point of a slope surface at the upper end of the pulley wheel are in the same straight line; the lifting rod comprises an upper rod, a lower rod and a plug pin; the upper rod and the lower are sleeved mutually, and a plurality of sockets are formed in each of the upper rod and the lower rod; a fastening bolt is arranged at the top end of the upper rod, and the upper rod is connected with the pulley wheel bracket through the fastening bolt; and a base is arranged at the lower end of the lower rod. The pulley used for laying and putting cables in the cable pipeline can effectively avoid the condition that the cable is clamped and stopped in the cable pipeline, so that the working efficiency is improved, the abrasion of the cable in the pipeline opening is reduced, and the service life of the cables is prolonged; and therefore, the pulley used for laying and putting cables in the cable pipeline is worthy of promotion.

Pulley used for laying and putting cables in cable pipeline

The invention discloses a wind power plant available inertia evaluation method, which comprises the steps of constructing an instantaneous wind speed conditional probability distribution model under the influence of atmospheric turbulence by utilizing a hybrid Copula function based on the space-time distribution characteristic of the average wind speed of a wind field under the influence of physical factors; establishing an estimation model of available inertia kinetic energy and inertia power increment of a fan in an operation mode under virtual inertia control of a doubly-fed wind turbine generator, and obtaining an interval evaluation curve of available inertia of a whole wind field based on a certain confidence coefficient by additionally considering the operation condition of each fanin the wind field in actual operation. The confidence interval evaluation result provided by the invention is relatively small in error and relatively high in credibility.

An Yuhua

Papers

Power grid dispatching intelligent maintenance order and operation order system

Pulley used for laying and putting cables in cable pipeline

Wind power plant available inertia evaluation method