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Electro-mechanical mixed voltage sag compensation device

A compensation device and hybrid technology, applied in circuit devices, power devices inside switches, electrical components, etc., can solve problems such as high power loss and device damage, improve current capacity, solve power loss, and be easy to maintain. Effect

Inactive Publication Date: 2011-05-25
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The use of traditional power electronic devices is also technically mature for solving the instantaneous low-quality power supply separation and compensation power access, but the power electronic devices work under high current for a long time, resulting in large power loss and heat generated by the loss. device is a more serious damage

Method used

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  • Electro-mechanical mixed voltage sag compensation device
  • Electro-mechanical mixed voltage sag compensation device
  • Electro-mechanical mixed voltage sag compensation device

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Embodiment Construction

[0014] of the present invention figure 2 Medium to high speed switches are typically used for figure 1 High-speed mechanical switches in low-voltage compensation devices. according to figure 1 The schematic diagram of the functional structure and figure 2 As shown in the schematic diagram of the high-speed switch structure, when the circuit is working normally, the power supply of the system is input by 1 power supply, which is connected to a parallel structure composed of 2 high-speed switches and 3 current-limiting breaking semiconductors. This parallel structure is connected to 7 important devices. its power supply. In normal operation, 2 high-speed switches are used for power supply in the parallel structure, and 3 current-limiting breaking semiconductors are non-conductive. When the voltage drops momentarily, the 2 high-speed switch is disconnected at a high speed, and the current is transferred to the 3 current-limiting breaking semiconductor. At this time, the 3 c...

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Abstract

The invention relates to a mixed compensation device for mechanical and electric power electronic components when the voltage sags, belonging to the technical field of electrical engineering and machinery. A permanent magnet mechanism and a repulsion mechanism are used in combination in the invention to pmanufacture a drive mechanism of a high-speed mechanical switch which drives an arc extinguish chamber to turn on and turn off, so as to form the high-speed mechanical switch. During norm operations, the device provides electrical energy for a user through the mechanical switch; and when the voltage is low or a power cut occurs, the mechanical switch breaks quickly, and coordinates with the split power supply depending on the current limitation characteristics of the electric power electronic component to initiate a UPS (uninterruptible power supply) and supply the power for the user at the same time. The device provided by the invention also has a good effect of inhibiting large power loss due to longstanding operation of the electric power electronic component under a large current and the heat generated by the power loss. The high-speed mechanical switch is of a simple structure and is easy to maintain.

Description

technical field [0001] The invention belongs to the field of electrical engineering and mechanical technology, and relates to a device for compensating instantaneous voltage drop in a power system. Background technique [0002] With the gradual improvement of users' requirements for power quality, the instantaneous voltage drop caused by faults will greatly increase the defective rate of products, thus affecting the economic benefits of enterprises. The development of large-capacity and high-efficiency UPS can better solve the production power supply when the voltage is instantaneously low or even power failure. The use of traditional power electronic devices is also technically mature for solving the instantaneous low-quality power supply separation and compensation power access, but the power electronic devices work under high current for a long time, resulting in large power loss and heat generated by the loss. It is a more serious damage to the device. Therefore, the p...

Claims

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Application Information

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IPC IPC(8): H02J9/06H01H3/28
Inventor 董恩源王永兴邹啟涛田鹏廖敏夫
Owner DALIAN UNIV OF TECH
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