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Current energy-taking once loop for thyristor valve of controllable series compensator

A thyristor valve and primary circuit technology, which is applied in emergency protection circuit devices, output power conversion devices, electrical components, etc., can solve problems such as damage to the insulation level of thyristor valves and the normal triggering of electronic boards, and facilitate mass industrial production , low partial discharge level and simple principle

Active Publication Date: 2010-01-13
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

In addition, since the controllable series compensation device has to work at high potential for a long time, the partial discharge phenomenon will not only damage the insulation level of the thyristor valve, but also have an adverse effect on the normal triggering of the high potential electronic board
These factors make the design of the thyristor valve current energy harvesting primary circuit of the controllable series compensation device have certain particularity and technical difficulty

Method used

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  • Current energy-taking once loop for thyristor valve of controllable series compensator
  • Current energy-taking once loop for thyristor valve of controllable series compensator
  • Current energy-taking once loop for thyristor valve of controllable series compensator

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Embodiment Construction

[0017] See attached Figure 1-4 As shown in FIG. 1 , it represents a specific implementation of the thyristor valve current energy harvesting primary circuit according to the present invention.

[0018] The energy harvesting primary circuit is mainly composed of two parts: the energy harvesting cable and the energy harvesting current transformer CT.

[0019] Such as figure 1 and 2 As shown in Fig. 1, the energy-taking cables are connected between the high-voltage end and the low-voltage end of the power transmission system, and pass through all the energy-taking current transformers CT. The energy harvesting current transformer is set next to the corresponding high-potential electronic board TE, and the energy harvesting current transformer CT corresponds to the valve layer of the thyristor in the thyristor valve circuit one by one, and is respectively connected to the valve layer of the thyristor through the high-potential electronic board TE .

[0020] image 3 Shown is...

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Abstract

A primary energy-fetch of a thyristor valve loop current of a controllable serial compensation device relates to a core device of the power system. The primary loop is composed of an energy-fetch cable and a current mutual-inductor (CT), in which, the cable is connected between the high voltage and low voltage of a transmission system to connected the top-bottom thyristor valves and pass through all CT, which are corresponding to the thyristor valves one by one and set besides the corresponding high potential electronic plates separately. The CT core is prepared by laminating ring silicon sheets to reduce the possibility of partial discharge. Multiple parallel cables form an energy-fetch cable to reduce the skin effect of the current in operation.

Description

technical field [0001] The invention relates to a core device of a controllable series compensation device in a power system, in particular to a thyristor valve current energy-taking primary circuit. Background technique [0002] The thyristor valve is the core component of the controllable series compensation device in the power system. By controlling the firing angle of the thyristor valve, the impedance can be continuously adjusted, which can enhance the power transmission capacity of the system, improve system stability and damp power oscillation. When a line fault occurs, the protection of the series compensation device can also be realized by controlling the continuous conduction of the thyristor valve. In the thyristor valve assembly, the high potential electronic board (TE board) triggers the thyristor valve. When the thyristor valve is continuously turned on, the high-potential electronic board (TE board) needs to obtain the working voltage of the high-potential el...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/00H02H7/10
Inventor 任孟干李志麒蓝元良汤广福武守远燕翚
Owner CHINA ELECTRIC POWER RES INST
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