Intelligent distribution unit-area simulation device

Abstract

The invention discloses an intelligent distribution unit-area simulation device. The intelligent distribution unit-area simulation device comprises a high-voltage incoming line, a transformer, an analog voltage source, a metering mutual inductor, a measuring mutual inductor, fault simulators, virtual load analog current sources, outgoing line switches, intelligent ammeters, a reactive compensation controller and a rural power grid intelligent distribution transformer terminal. The high-voltage incoming line is connected to the metering mutual inductor through the transformer, the analog voltage source is connected to the metering mutual inductor, the metering mutual inductor is connected with the measuring mutual inductor through one fault simulator, one virtual load analog current source and another fault simulator in sequence, the intelligent ammeters and the measuring mutual inductor are connected with the metering mutual inductor, the metering mutual inductor is connected to the rural power grid intelligent distribution transformer terminal, the outgoing line switches are connected with the measuring mutual inductor, and the intelligent ammeters are connected through RS485. An intelligent distribution unit-area measures electric power operation data of the distribution transformer, carries out dynamic reactive power compensation, eliminates harmonic distortion, deals with asymmetry of phase voltages and eliminates voltage fluctuation and flickering, so that power supply reliability and electric energy quality are improved.

Description

technical field [0001] The invention belongs to the technical field of rural power grids, in particular to an intelligent distribution station area simulation device. Background technique [0002] China's rural power grid has already established a certain foundation after large-scale rural power grid transformation, but there are still generally insufficient infrastructure investment, unreasonable grid structure, and relatively backward technological means. It is economical, practical and effective, and will be constructed in stages. [0003] At present, the teaching and training of the rural grid intelligent power distribution system based on the intelligent low-voltage distribution box of the rural grid and the relevant skills of user load and measurement at home and abroad are only on-site education and operation demonstration in the way of masters and apprentices. Due to the singleness of the on-site situation, the master cannot demonstrate the failure of the intelligen...

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Problems solved by technology

[0002] China's rural power grid has already established a certain foundation after large-scale rural power grid transformation, but there are still generally insufficient infrastructure investment, unreasonable grid structure, and relatively backward technological means. The characteristics of economic benefits, practical results, construction in stages

[0003] At present, the teaching and training of the rural grid intelligent power distribution system based on the intelligent low-voltage distribution box of the rural grid and the relevant skills of user load and measurement at home and abroad are only on-site education and operation demonstration in the way of masters and apprentices. Due to the singleness of the on-site situation, the master cannot demonstrate the failure of the intelligent low-voltage distribution box of the rural power grid, the problems and solutions of the single-phase and three-phase metering users and the main station software system, and can only adopt the teaching method of solving problems when they arise, so that there are It is impossible to reproduce the possible fault phenomena that may occur in the operation of the intelligent low-voltage distribution box of the rural power grid. At the same time, the test operation data of the intelligent distribution transformer terminal software of the rural power grid is single, and it is impossible to carry out personalized assessments for multiple students. This kind of teaching The method is not conducive to students' understanding and learning, and has been criticized a lot in teaching practice

With the development of smart grid, especially after the large-scale promotion of intelligent upgrading and transformation of rural power grid, there are people who are not familiar with new equipment and new products. problem

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