Flexible direct current submodule multi-physical field parameter monitoring device, monitoring method and preparation method
A technology of parameter monitoring and multi-physics, applied to measuring devices, thermometers with physical/chemical changes, measuring electricity, etc., can solve the problem of lack of process detection data in the flexible sub-module, and achieve the effect of accurately locating the cause of the fault
Pending Publication Date: 2021-11-16
CHINA EPRI ELECTRIC POWER ENG CO LTD
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Problems solved by technology
[0005] In order to solve the problem that the existing technology does not have the lack of process detection data for the flexible straight sub-module in operation, the present invention provides a flexible straight sub-module multi-physical field parameter monitoring device, including:
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Embodiment 1
[0094] The purpose of this application is to obtain a comprehensive analysis and reliability evaluation method for high-density and large-capacity power electronic devices, and to realize the comprehensive optimization design of flexible DC converter valve power electronic devices. It provides strong data support for the short-time scale failure mechanism and law of key components and equipment of the flexible sub-module under complex working conditions and the comprehensive action of multiple physical fields, as well as the safe operation design method. The present invention provides a flexible sub-module multi-physical field parameter monitoring device for the aging mechanism and law of the key components and equipment of the flexible sub-module, the selection of aging characteristic parameters and the acquisition of the aging state, such as figure 1 Shown; The monitoring method of the multi-physics field parameters of the flexible straight sub-module realized by the device a...
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The invention discloses a flexible direct current sub-module multi-physical field parameter monitoring device, a monitoring method and a preparation method. The flexible direct current sub-module multi-physical field parameter monitoring device comprises a first temperature measurement module, a second temperature measurement module and an IGBT parameter acquisition module, the first temperature measurement module is an optical fiber temperature measurement sensor, is arranged at a temperature measurement point in the capacitor and is used for testing the temperature of the capacitor; the second temperature measuring module is a multi-point optical fiber temperature measuring sensor, is arranged on a plurality of measuring points of the IGBT device and is used for monitoring the temperature of all the measuring points on the IGBT device; the IGBT parameter acquisition module is connected with the IGBT device and is used for acquiring voltage and frequency parameters of the IGBT device; on the basis of the method, fault causes can be positioned more quickly and accurately, and possible faults can be predicted; and favorable data support can be provided for formulating a flexible straight valve maintenance plan, designing spare parts and formulating an equipment transformation plan.
Description
technical field [0001] The invention relates to the field of electric power system electrical engineering, in particular to a multi-physical field parameter monitoring device, monitoring method and preparation method of a flexible straight sub-module. Background technique [0002] In recent years, with the development of offshore wind power to the far sea, considering the special circumstances such as offshore platforms far away from the coast, wind and wave intrusion, and fixed maintenance windows, converter stations are mostly unattended, and operation and maintenance are relatively difficult. Life cycle status monitoring can improve the reliability of the operation of the Rouzhou DC converter station. [0003] As one of the important equipments of the whole DC transmission system, the operating state of the flexible DC converter valve is directly related to the safety of the whole system. The soft DC converter valve is composed of many MMC sub-modules connected in series...
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Login to View More IPC IPC(8): G01R31/26G01K11/3206
CPCG01R31/2601G01K11/3206
Inventor 曹均正郭文明杜雲栾洪洲屈海涛王艳雪
Owner CHINA EPRI ELECTRIC POWER ENG CO LTD