Converter valve fault early warning method and system
A technology of fault warning and converter valve, applied in the direction of output power conversion device, electronic circuit test, measurement device, etc., can solve the problem of equipment availability rate that can only be repaired regularly
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Embodiment 1
[0029] The embodiment of the present invention provides a converter valve fault early warning method, which is applied to the occasions of monitoring thyristor-level circuit parameters and converter valve maintenance, such as figure 1As shown, the converter valve is composed of multiple bridge arms, and each bridge arm has multiple thyristor-level circuits connected in series. Each thyristor-level circuit is connected to a thyristor trigger monitoring unit, and the thyristor trigger monitoring unit is used to control Thyristor trigger control, protection and operation status monitoring, in which the operation status monitoring function mainly includes information such as the energy acquisition status of the trigger monitoring unit, the trigger status of the thyristor protection and the fault status of the thyristor, and is fed back to the upper monitoring system in real time through the return signal optical fiber channel. such as valve-based electronics such as figure 2 As s...
Embodiment 2
[0057] An embodiment of the present invention provides a converter valve fault early warning system, such as Figure 5 shown, including:
[0058] The return signal module 1 is used to receive the return signal sent by each thyristor trigger monitoring unit, compare each return signal with the preset return signal, and obtain the initial time difference between each return signal and the preset return signal; this module Execute the method described in step S11 in Embodiment 1, which will not be repeated here.
[0059] The parameter discrimination module 2 is used to determine the change of the thyristor-level circuit parameters corresponding to the report signal when the initial time difference between the report signal and the preset report signal reaches the preset time difference threshold; this module executes the description of step S12 in Embodiment 1 method, which will not be repeated here.
[0060] The fault discrimination module 3 is used to detect the parameters of...
Embodiment 3
[0062] An embodiment of the present invention provides a computer device, such as Figure 6As shown, it includes: at least one processor 401 , such as a CPU (Central Processing Unit, central processing unit), at least one communication interface 403 , memory 404 , and at least one communication bus 402 . Wherein, the communication bus 402 is used to realize connection and communication between these components. Wherein, the communication interface 403 may include a display screen (Display) and a keyboard (Keyboard), and the optional communication interface 403 may also include a standard wired interface and a wireless interface. The memory 404 may be a high-speed RAM memory (Ramdom Access Memory, volatile random access memory), or a non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory 404 may also be at least one storage device located away from the aforementioned processor 401 . Wherein, the processor 401 may execute the conver...
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