Power control system and train control device
A power control and control module technology, applied in the electrical field, can solve the problem of high cost and achieve the effect of cost reduction
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Embodiment 1
[0034] Such as image 3 As shown, the power supply control system provided by this embodiment includes an input terminal module 1 and an intermediate bus 2 , and the intermediate bus is arranged on a backplane 4 .
[0035] Furthermore, the power supply control system provided in this embodiment further includes a filter module 6 arranged between the external power supply and the input terminal module 1 .
[0036] The 110V input voltage of the external power supply firstly passes through the filter module 6 to perform electromagnetic interference (EMI) filtering on the input voltage, and realize functions such as anti-reverse connection and anti-shock.
[0037] The input terminal module 1 is preferably an isolated direct-current (DC-DC) converter, which converts the 110V input voltage for the first time to form an intermediate voltage, and inputs it to the intermediate bus 2 on the backplane 4 . In this embodiment, the intermediate voltage may be 24V. In other implementation ...
Embodiment 2
[0046] This embodiment is basically the same as Embodiment 1, as Figure 4 As shown, the difference is that in this embodiment, the filter module 6, the input module 1, the intermediate bus 2 and each load module 3 are arranged on the single board 9, and any load module 3 communicates with the corresponding module through the backplane 4 The function board 5 is connected.
[0047] Compared with the power supply control system provided in Embodiment 1, in this embodiment, the filter module 6, the input module 1, the intermediate bus 2 and each load module 3 are all arranged on a single board 9, which can be better integrated with The existing centralized power supply mode is compatible, and it is more flexible for the development of the power control system.
Embodiment 3
[0049] The power supply control system provided in this embodiment is a further improvement on the basis of the first embodiment. Such as Figure 5 As shown, the power supply control system is provided with two input terminal modules 1 and two intermediate buses 2 . One of the input modules converts the 110V input voltage into a 24V intermediate voltage, and the other input module converts the 110V input voltage into a -24V intermediate voltage, so that the intermediate voltages on the two intermediate buses are 24V and -24V respectively.
[0050] In this embodiment, the output voltage of each load-end module connected to the two intermediate buses can be flexibly set as required, and the two intermediate buses enable each load-end module to more conveniently convert the intermediate bus into the output voltage required by the load , It also further reduces the mutual influence between functional boards and improves the power quality.
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