Intelligent solid state transfer switch, processing method thereof and transfer switch control system

Abstract

The invention provides an intelligent solid state transfer switch and a transfer switch control system adopting the intelligent solid state transfer switch. Two sets of thyristors connected in parallel are fixed between an upper end plate and a lower end plate, each set of thyristors comprises a plurality of thyristors connected in series, the number of the thyristors in the two sets of thyristors is equal, and each pair of corresponding thyristors of the two sets of thyristors are connected in an anti-parallel mode; each pair of thyristors is further connected with a static state equalizing resistor and a dynamic equalizing unit in parallel; all static state equalizing resistors are in serial connection in sequence, and all dynamic equalizing units are in serial connection in sequence; multiple TE plates are respectively connected with and control gate poles of each thyristor of each pair of thyristors; each TE plate is connected with an energy-gaining coil; AC square wave is output by a high-frequency energy-sending power source through a high-voltage energy-sending cable, and trigger drive energy is provided for the TE plates through induction of the energy-gaining coils. The intelligent solid state transfer switch is compact in structure and reasonable in arrangement, and turning-on, turning-off and quick switching of 10KV electric system lines can be achieved. The intelligent solid state transfer switch has the advantages of being intelligent and free of arc, noise and mechanical fatigue, and self-diagnosis, soft turning-on and soft turning-off can be achieved.

Description

technical field [0001] The invention relates to a power supply or distribution circuit device of a power system, especially an intelligent solid-state transfer switch with an automatic transfer function, and a thyristor is one of the core components. Background technique [0002] The field of power electronics technology has formed a considerable scale in the world. Compared with other industrial categories, although it has appeared in the field of science and technology for a short time, it has played a huge role in today's industrial automation. It is an important interface between the information industry and traditional industries. and the bridge between the weak current. Its development has opened up a new path for mechatronics, and provided a new and important means for greatly saving electric energy and reducing raw material consumption. [0003] With the development of power electronics technology, especially the improvement of the parameters and performance of pow...

AI Technical Summary

Problems solved by technology

[0006] The invention provides an intelligent solid-state transfer switch, whose core component is a power electronic device-thyristor, using the semiconductor device as a power switch instead of a traditional mechanical switch to realize the shutdown, opening, and fast switching of 10KV power system lines. Function, solve the inherent problems of traditional mechanical switches such as slow switching speed, short service life, low reliability of power supply to sensitive and critical loads, and poor power quality

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