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New energy unit frequency modulation test platform power module low-voltage fault detection device

A technology for frequency modulation of power modules and units, applied in measurement devices, measurement of electricity, measurement of electric variables, etc., can solve the problem of low integration and automation of fault detection devices, low fault detection accuracy and efficiency, and inability to detect multiple powers at the same time. Modules and other issues to achieve the effect of improving efficiency, improving accuracy, and being easy to carry

Pending Publication Date: 2021-01-22
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

In order to solve the problems of low integration and automation of existing power module fault detection devices, and the inability to detect multiple power modules at the same time, low fault detection accuracy and efficiency

Method used

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  • New energy unit frequency modulation test platform power module low-voltage fault detection device
  • New energy unit frequency modulation test platform power module low-voltage fault detection device
  • New energy unit frequency modulation test platform power module low-voltage fault detection device

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Embodiment Construction

[0036] The embodiments will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with aspects of the present application as recited in the claims.

[0037]The frequency modulation test platform for new energy units is a device developed based on IGBT devices and PWM modulation technology, which can simulate the frequency fluctuation characteristics of the power grid to carry out frequency modulation tests for new energy units. In the normal test, when the frequency modulation test platform of the new energy unit is empty, that is, the fan is shut down, and it is not connected...

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Abstract

The invention provides a new energy unit frequency modulation test platform power module low-voltage fault detection device, which comprises an input and output module and a data processing module which are in bidirectional communication connection, wherein the input and output module comprises an analog quantity acquisition unit and an analog quantity output unit; and the data processing module comprises a display unit, a calculation unit and a data storage unit. The new energy unit frequency modulation test platform power module low-voltage fault detection device integrates a fault detectiondevice of a power module, and is convenient to carry. Data is collected by means of the input and output module, the data processing module processes and analyzes the collected data, and the automation degree of the power module fault detection device and the accuracy of fault detection are improved. Moreover, the fault detection device can detect a plurality of power modules at the same time, thereby improving the fault detection efficiency of the power modules.

Description

technical field [0001] The invention belongs to the field of a detection device for a frequency modulation test platform of a new energy unit, and in particular relates to a low-voltage fault detection device for a power module of a frequency modulation test platform for a new energy unit. Background technique [0002] The frequency modulation test platform for new energy units is a device that can simulate the frequency fluctuation characteristics of the power grid to conduct frequency modulation tests on new energy units. The new energy unit frequency modulation test platform mainly includes a power module composed of IGBT devices. When the new energy unit frequency modulation test platform is performing a low-voltage test, that is, the fan is shut down, and when it is not connected to the new energy unit frequency modulation test platform, the power module works as an inverter module. [0003] However, due to the influence of the field test environment, temperature and e...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 何廷一李胜男吴水军
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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