Communication method by using series connection valve triggering signal of high voltage electric and electronic device

A technology for electronic devices and trigger signals, which is applied to electrical components, output power conversion devices, etc., to achieve the effects of avoiding damage, ensuring reliability, and saving the number of optical fiber connections and the scale of interface circuits

Active Publication Date: 2009-07-08
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, no relevant technical patents have been seen at home and abroad that use a similar method to realize the transmission of trigger signals for IGBT series valves in high-voltage power electronic devices.

Method used

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  • Communication method by using series connection valve triggering signal of high voltage electric and electronic device
  • Communication method by using series connection valve triggering signal of high voltage electric and electronic device
  • Communication method by using series connection valve triggering signal of high voltage electric and electronic device

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Embodiment Construction

[0027] The overall hardware configuration of the high-voltage power electronic device IGBT series valve trigger system involved in the present invention is as attached figure 1 shown. The information channel 2 between the trigger pulse distribution unit and the IGBT gate drive unit of the power electronic device uses optical fiber as a transmission carrier, and the trigger pulse distribution unit and the IGBT gate drive unit of the power electronic device are respectively equipped with a light transmitter and a light receiver. On the one hand, the optical fiber connection realizes the electrical isolation between two devices; reliability. The input signal 1 of the trigger signal modulation device in the trigger pulse distribution unit is the information to be transmitted generated by the valve controller, including PWM trigger pulse and other trigger control signals. The modulation device modulates the signal to be transmitted, and then transmits it to the IGBT gate drive un...

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Abstract

The invention discloses a method for triggering signal communication between double-pole power tube IGBT gate pole driver units of the isolated gate of power electronic devices in the application of trigger pulse allocation units and high voltage in series. An optical fiber is used as communication media in the method, to ensure the reliability of the communication; one optical fiber is only needed to complete transmission of various trigger signals through a certain modulator approaches, therefore, the loss of communication line is reduced, the smallest quantity of track junction between equipments is ensured and wasting cost of optical fiber is reduced.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and in particular relates to a communication method for a trigger signal of an insulated gate bipolar power tube IGBT series valve of a high-voltage power electronic device. Background technique [0002] The converter valve composed of the insulated gate bipolar power transistor IGBT which can turn off the power electronic device is the key equipment of the flexible direct current transmission technology based on the voltage source converter. Due to the limited voltage that a single power electronic device IGBT device can withstand, it is difficult to meet the requirements of high-voltage direct current transmission applications. In order to improve the voltage level of the flexible direct current transmission converter valve, a method of connecting multiple power electronic devices IGBT devices in series is adopted, which puts forward higher requirements for the triggering, protection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/092
Inventor 国彬潘艳贺之渊田磊钱峰包海龙
Owner CHINA ELECTRIC POWER RES INST
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