Combined type synchronous switch based on split-phase control technology

A control technology and synchronous switch technology, which is applied in the field of combined synchronous switches, can solve structural limitations and other problems, and achieve the effects of reduced impact, long communication time, and fast speed

Active Publication Date: 2015-03-25
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The key to synchronous switching is the synchronous operation of the three-phase contacts. However, the phases of the three-phase AC in the power system are 120° to each other. The traditional AC switching devices are limited by the structure, and it is impossible for the three-phase contacts to complete the desired voltage and current phases. , opening

Method used

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  • Combined type synchronous switch based on split-phase control technology
  • Combined type synchronous switch based on split-phase control technology
  • Combined type synchronous switch based on split-phase control technology

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Embodiment Construction

[0021] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0022]The present invention is a combined synchronous switch based on phase separation control technology, comprising a unipolar switch digital control unit group and a unipolar switch digital control unit group connected to the unipolar switch digital control unit group for adjusting the output pulse width The pulse width adjustment unit, the degaussing circuit unit and the detection unit for detecting the voltage and current of the coil and the contact; it also includes a power supply unit for supplying power to the entire control system; the unipolar switch digital control unit group includes the first 1st to Nth unipolar switch digital control units; the 1st to Nth unipolar switch digital control units all include a digital control chip and a multi-pole switch connected to the digital control chip and used to judge the working state of...

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Abstract

The invention relates to a combined type synchronous switch based on the split-phase control technology. The combined type synchronous switch comprises a single-pole switch digital control unit group, a pulse width adjustment unit, a degaussing loop unit and a detection unit, wherein the pulse width adjustment unit is connected with the single-pole switch digital control unit group and used for adjusting the output pulse width of the single-pole switch digital control unit group, and the detection unit is used for detecting the voltage and current of a coil and a contact. The combined type synchronous switch further comprises a power supply unit used for supplying power to a whole control system. Each single-pole switch digital control unit has the functions of mutual detection, polar coordination and process control, zero voltage pull-in and zero current breaking control of each phase of circuit are achieved, and a brand-new combined type synchronous switch is formed.

Description

technical field [0001] The invention relates to the field of intelligent control of equipment, in particular to a combined synchronous switch based on phase separation control technology. Background technique [0002] Switching appliances are widely used in power grid systems and electric drives, involving industry, agriculture, life and other fields, directly affecting the development of the national economy and people's normal life. With the rapid development of microprocessor technology and power electronics technology, intelligent control technology is widely used in the field of electrical appliances, and the performance indicators of switching appliances have been comprehensively improved, improving the reliability and stability of power supply. Intelligence still has a lot of work to do. [0003] There are many types of AC switching appliances, different working principles, and very different control objects. For example, when closing loads such as capacitors and no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18
CPCY02E40/30H02J3/1892
Inventor 许志红罗海海
Owner FUZHOU UNIV
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