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Solid converting switch and reinforced switching method for thyristor valve body

A technology of solid-state switch and thyristor valve body, which is applied in the field of electric power, can solve the problems of lower device efficiency and reliability, large footprint, and difficulty in merging SSTS cabinets, etc., and achieve the effect of easy cabinet merging

Active Publication Date: 2012-10-31
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Cooling equipment will inevitably increase the complexity of the system and the cost of operation and maintenance, reducing the efficiency and reliability of the device
Therefore, in the design scheme, although the switching speed is fast, the loss is large, the efficiency is low, the cost of water cooling is high, the area is large, and the maintenance is complicated
Therefore, this SSTS is difficult to merge with the switching station

Method used

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  • Solid converting switch and reinforced switching method for thyristor valve body

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Embodiment Construction

[0012] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0013] An embodiment of the present invention provides a solid-state switch, including a control unit, a mechanical switch and a thyristor valve body, and the mechanical switch and the thyristor valve body are installed by a trolley.

[0014] Since the mechanical switch and the thyristor valve body are installed on a trolley, it is easy to realize the cabinet combination with the switching station.

[0015] In the above-mentioned solid-state transfer switch, a bypass switch cabinet may also be included, which is connected with the control unit, the fast mechanical switch and the thyristor valve body in a bypass for backup.

[0016] The control unit can use a high-speed data processing chip, based on CAN communication and SPI synchronous serial port communication, to realize the hierarchical distributed control structure of the contro...

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PUM

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Abstract

The invention provides a solid state transfer switch, which comprises a control unit, a mechanical switch and a thyristor valve body, wherein the mechanical switch and the thyristor valve body are both mounted by a cart. The mechanical switch is in parallel with the thyristor valve body. The invention also provides a forced switching method of the thyristor valve body for the solid state transfer switch. The solid state transfer switch can easily realize the combined cabinet with a switching station.

Description

technical field [0001] The present invention relates to the field of electric power, in particular to an SSTS (Solid State Transfer Switch, solid state transfer switch) and a forced switching method for a thyristor valve body thereof. Background technique [0002] With the continuous development of the economy, users have higher and higher requirements for power quality. However, transient power quality problems, such as voltage sags (Voltage Sags) and instantaneous power failures, seriously affect the normal operation of user equipment. [0003] For these power quality problems, the traditional treatment methods (using ordinary overvoltage suppressors to prevent overvoltage damage to equipment, using filters to reduce the influence of harmonic distortion, using uninterruptible power supply (UPS) to protect some key equipment, installing machinery There is a big disadvantage of investing funds in the standby self-injection of the switch and dual power supply, installation o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B11/167H02J9/04H03K17/13H03K17/72
Inventor 赵国亮李金元李志兵崔博元王松岑蔡林海
Owner STATE GRID CORP OF CHINA