The invention discloses a plant wiring information based anticipatory fault set generation method. The method comprises the steps of (1) determining whether a plant wiring information maintenance database is required; (2) determining whether equipment belongs to a to-be-generated voltage level fault subset according to certain substation equipment name number information in power grid models, storing the plant wiring information of the equipment into a fault set database if the equipment belongs to the subset, adding calculation identification position to all line information, and setting the calculation identification position to be 0; (3) setting different fault cars to different equipment in the fault set database; (4) stopping in the step (3) if certain voltage level fault subset is to be generated, and repeating (2) to (3) if a full voltage level fault subset is to be generated. The method has the advantages that anticipatory fault sets are generated rapidly, efficiently and automatically, fault setting time is reduced, and the workload is reduced for subsequent calculation and analysis.

Plant wiring information based anticipatory fault set generation method

The invention discloses a method for quickly cutting off loads locked by ultra-high-voltage direct current in batches in a concurrence manner. A power grid dispatching automation system serves as a foundation, a switch sequence is selected according to a selection strategy and a filtering condition, a multi-turn control and standby channel control method is adopted, multi-turn control time intervals are adjusted flexibly, batch load cutting-off control success rate is increased greatly, batch loads are cut off quickly by a single-station serial and multi-station parallel combined remote-control mode, batch remote control efficiency is greatly improved, millions of loads can be cut off in minutes, the loads can be quickly controlled in batches on the premise that the safety and the accuracy are ensured when ultra-high-voltage direct current locking fails, and safe and stable running of a power grid is guaranteed.

Method for quickly cutting off loads locked by ultra-high-voltage direct current in batches in concurrence manner

Visual realization method of second safety defense line on-line monitoring of electric power system

Aiming at the problem that the predictive fault set depends on the artificial experience in the static security analysis of the smart grid dispatching control system (D5000), a self-adaptive and super real-time forecast system based on D5000 is proposed. The power system static security analysis technology, the predictive fault set generation technology and the artificial intelligence algorithm are combined organically, the static sample library of the fault set is established firstly, then the static sample library of the fault set is edited established based on the classification error. The artificial intelligence technology is used to classify the fault set, and the adaptive super real-time prediction model of the fault set is established. In this paper, the software environment, function design and key technologies of the proposed system are described in detail. The system can scientifically predict fault sets and improve the intelligence of software.

Self-adaptive and super real-time forecast system for predictive fault set based on D5000

The invention discloses a fault-card-library building method based on PSD-BPA, and belongs to the technical field of electrical power systems. By building a standardized database and building a standardized fault card library, information required by the fault card library is extracted from the standardized database to generate corresponding parameters in the standardized fault card library, thenfault information provided by a scheduling department and parameters required by remaining fault cards are supplemented to the standardized fault card library, and therefore the standardized fault card library with the PSD-BPA and information required by fault cards is built. According to the fault-card-library building method based on the PSD-BPA, fault cards are generated according to the builtdatabase, a large amount of error-prone data processing work needing manual generation at present is simplified, the accuracy is guaranteed, a support is provided for stable computation of a user, andthe working efficiency is greatly improved.

Fault-card-library building method based on PSD-BPA

The invention provides a classified fault template based on the concept of three lines of defense in a power system, which is generally adopted by power grid construction in China. On the basis, the automatic batch fault set generation is realized and the batch generation with same faults can be realized for a plurality of nodes in the same region or same voltage grade. Compared with a traditional single fault generation method for elements, the automatic batch fault set generation method can be used for saving multiple repeated operations, so that the time for fault generation is greatly saved and the work efficiency is improved. Meanwhile, various fault templates are classified according to the requirement of three lines of defense, thus weak spots and safety and danger points in the operation of the power grid can be found more comprehensively and accurately, and further, references can be provided for safe and stable operation of a large power grid.

Three defensive lines based automatic batch fault set generation method

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Three defensive lines based automatic batch fault set generation method