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Isolation energy supply device and method for full-control switching device

A switching device and energy supply technology, which is applied to output power conversion devices, electrical components, power transmission AC networks, etc. The effect of engineering

Active Publication Date: 2020-08-07
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is only a high-level online energy harvesting method for thyristors, and there is still no energy supply method for fully-controlled switching devices that can turn off the tube valve string. Therefore, the purpose of the present invention is to propose a new type of high-voltage DC transmission hybrid converter Isolation energy supply device and method for full control switch device

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  • Isolation energy supply device and method for full-control switching device
  • Isolation energy supply device and method for full-control switching device
  • Isolation energy supply device and method for full-control switching device

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] As used herein, "comprising", "comprising", "having", "comprising" and so on are all open terms, meaning including but not limited to.

[0030] "Plurality" herein includes "two" and "more than two".

[0031]The "connection" and "electrical connection" in this article include direct connection between two components, an...

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Abstract

The invention belongs to the field of direct-current transmission, and discloses an isolation energy supply device and method for a full-control switching device. The isolation energy supply device isapplied to high-voltage direct-current power transmission equipment, wherein the high-voltage direct-current power transmission equipment comprises a positive electrode valve tower and a negative electrode valve tower, the isolation energy supply device is electrically connected to the positive electrode valve tower, the negative electrode valve tower and a power supply and comprises a pluralityof isolation energy supply units, and the positive electrode valve tower and the negative electrode valve tower are subjected to graded isolation energy supply through the isolation energy supply units. The device and the method are applied to the novel high-voltage direct-current power transmission hybrid converter, can effectively supply energy to the full-control switching device driving circuit, the control protection device and the like of the turn-off pipe valve string in the hybrid converter, and are easy to implement in engineering.

Description

technical field [0001] The invention belongs to the field of direct current transmission, and in particular relates to an isolated energy supply device and method for full-control switching devices. Background technique [0002] High-voltage direct current transmission technology (HVDC, High-Voltage Direct Current) utilizes the advantages of stable direct current with no inductive reactance, capacitive reactance does not work, and no synchronization problems, and adopts high-power long-distance direct current transmission. High-voltage direct current transmission is a power transmission method in which three-phase alternating current is rectified into direct current through a converter station, and then sent to another converter station through a direct current transmission line for inversion into three-phase alternating current. It basically consists of two converter stations connected to the AC system at both ends and a DC transmission line. The equipment of the HVDC tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/36H02M1/088H02M1/06
CPCH02J3/36H02M1/06H02M1/088Y02E60/60
Inventor 曾嵘许超群余占清赵彪陈政宇
Owner TSINGHUA UNIV