CN217904089U - DCS power supply device - Google Patents
DCS power supply device Download PDFInfo
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- CN217904089U CN217904089U CN202123172429.3U CN202123172429U CN217904089U CN 217904089 U CN217904089 U CN 217904089U CN 202123172429 U CN202123172429 U CN 202123172429U CN 217904089 U CN217904089 U CN 217904089U
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Abstract
The utility model provides a DCS power supply device capable of monitoring self-contained endurance, which comprises a plurality of transformers distributed in parallel, wherein the secondary winding of each transformer is connected with an output DC power supply D3, and the secondary winding of each transformer is respectively connected with a voltage monitor; all voltage monitors are connected with the DCS acquisition system. The voltage monitor is additionally arranged at the output end of the power supply module running in parallel, so that the voltage value of the power supply module running in parallel can be measured in real time, and data can be acquired and stored by being connected with an adjacent DCS (distributed control system).
Description
Technical Field
The utility model relates to a DCS power technical field is a DCS power supply unit particularly.
Background
DCS (distributed control system) becomes a mainstream platform for monitoring and controlling active generator sets, and is formed by integrating different function stations, and data exchange is realized among the control stations through a high-speed communication network. In order to ensure that the operational reliability and fault impact of a single control station are minimized, the network and the power supply system of each control station usually adopt a dual redundancy structure. Each control station is provided with two paths of power supplies which supply power in parallel after passing through the alternating current-direct current conversion power supply module. The reliability of the power supply system directly determines the safety and stability degree of the whole control system.
In the existing DCS system, two paths of redundant power supply modules of each control station realize parallel operation by using diodes, along with the long-period operation of a power supply device, the performance of electronic components is reduced due to aging and other reasons, and the control station power supply has a fault case of controller initialization and the like due to overlong switching time. Meanwhile, the direct-current power supply parameters output by the power supply module have no monitoring means, so that the fault process cannot be mastered, and the fault reason cannot be easily checked.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that prevent DCS power supply unit during operation, do not have the means of supervision, cause unable accurate grasp trouble.
The utility model discloses a following technical means realizes solving above-mentioned technical problem:
a DCS power supply device comprises a plurality of transformers distributed in parallel, wherein a secondary winding of each transformer is connected with an output direct current power supply D3, and the secondary winding of each transformer is connected with a voltage monitor; all voltage monitors are connected with the DCS acquisition system.
As a further optimized technical scheme, the DCS power supply device further includes a switching relay and a storage battery, the switching relay is connected to a line connecting a secondary winding of each transformer and the output dc power supply D3, the output dc power supply D3 is connected to the secondary winding of the transformer or the storage battery through a selector switch, and the selector switch is controlled by the switching relay.
As a further optimized technical scheme, the transformers are 2 groups and respectively output direct current power supplies DC1 and DC2.
As a further optimized technical scheme, the DCS power supply device further includes 4 diodes, which are D1, D2, D3, and D4, wherein two ends of the DC power supply DC1 are connected to a negative electrode of the diode D1 and a positive electrode of the diode D2, two ends of the DC power supply DC2 are connected to a positive electrode of the diode D3 and a negative electrode of the diode D4, a negative electrode of the diode D1 is connected to a negative electrode of the diode D3, a contact a is disposed on a connection line, a positive electrode of the diode D2 is connected to a positive electrode of the diode D4, a contact b is disposed on the connection line, a positive electrode end and a negative electrode end of the storage battery are connected to an electric shock c and a contact D, a positive electrode end and a negative electrode end of the DC power supply DC3 are respectively used as a common terminal of the switch J1 and a common terminal of the switch J2, the contacts a and c are respectively selectable contacts of the switch J1, and the contacts D and b are respectively selectable contacts of the switch J2; one end of the switching relay is connected with the anodes of the diodes D2 and D4, and the other end of the switching relay is connected with the cathodes of the diodes D1 and D3.
As a further optimized technical scheme, the storage battery is positioned on one side of the output end of the direct current power supply DC 3.
The utility model has the advantages of:
through increasing voltage monitor on the power module output of operation side by side, can the real-time measurement voltage value on the power module of operation side by side to through being connected with adjacent DCS collection system, can carry out the collection and the storage of data, increase the battery of certain capacity simultaneously on electrical power generating system, when detecting two ways parallel power supply trouble, can use the battery to carry out the short time continuation of the journey.
Drawings
Fig. 1 is a schematic diagram of a DCS power supply device according to an embodiment of the present invention.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
As shown in fig. 1, an embodiment of the utility model provides a DCS power supply device, including transformer, direct current power supply DC1, DC2, voltage monitor, diode, switching relay, battery.
The transformer has 2 groups: the first transformer, the second transformer and 2 groups of transformers run in parallel, and alternating current power supplies AC1 and AC2 are converted into direct current power supplies DC1 and DC2 through the transformers respectively.
The number of the voltage monitors is 2, the 2 voltage monitors are respectively connected to two ends of 2 direct current power supplies DC1 and DC2 and used for detecting the change of voltage values at any time, and the voltage monitors are connected to the DCS acquisition system and send detected data to the DCS acquisition system.
The number of the diodes is 4, the diodes are respectively D1, D2, D3 and D4, two ends of a direct current power supply DC1 are respectively connected with a negative electrode of the diode D1 and a positive electrode of the diode D2, two ends of the direct current power supply DC2 are respectively connected with a positive electrode of the diode D3 and a negative electrode of the diode D4, the negative electrode of the diode D1 is connected with the negative electrode of the diode D3, a contact a is arranged on a connecting line, the positive electrode of the diode D2 is connected with the positive electrode of the diode D4, and a contact b is arranged on the connecting line. The positive end and the negative end of the storage battery are respectively connected with an electric shock c and a contact d, the positive end and the negative end of the direct-current power supply DC3 are respectively used as the common end of the switch J1 and the common end of the switch J2, the contacts a and c are respectively selectable contacts of the switch J1, and the contacts d and b are respectively selectable contacts of the switch J2.
One end of the switching relay is connected to the anodes of the diodes D2 and D4, and the other end is connected to the cathodes of the diodes D1 and D3, and as shown in fig. 1, the diodes have unidirectional conductivity, so that the direction of the current in the switching relay flows from the anodes of the diodes D1 and D3 to the cathodes of the diodes D2 and D4. The storage battery is a standby power supply and is positioned on one side of the DC3 output end of the DC power supply, so that subsequent power supply is realized.
The utility model discloses an operating principle does, two way alternating current power supply AC1 and AC2 change direct current power supply DC1 and DC2 into through the transformer, through be provided with the voltage monitor on direct current power supply DC1 and DC2, direct current power supply DC1, DC 2's mains voltage can be measured to this voltage monitor to send the measured value to adjacent DCS collection system and carry out data acquisition and storage, relevant data supply picture monitoring and vertical recall. Direct current power supply DC1 and DC2 pass through diode D1, D2, D3, D4 realizes the operation side by side, export in parallel increases the switching relay, when export voltage is normal side by side, switch J1's public end contacts a, switch J2's public end contacts b, direct current power supply DC3 is by export power supply side by side, when export voltage reduces, the switching relay begins to move, corresponding switch J1, the J2 position can take place to switch, switch J1's public end can be from contact a to the contact c on the battery, switch J2's public end can be from contact b to the contact D on the battery, direct current power supply DC3 begins to be supplied power by the battery.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (2)
1. The DCS power supply device is characterized by comprising a plurality of transformers distributed in parallel, wherein a secondary winding of each transformer is connected with an output direct-current power supply D3, and the secondary winding of each transformer is connected with a voltage monitor; all voltage monitors are connected with a DCS acquisition system, and the DC power supply system further comprises a switching relay and a storage battery, wherein the switching relay is connected on a circuit for connecting a secondary winding of each transformer with an output DC power supply D3, the output DC power supply D3 is connected with the secondary winding of the transformer or the storage battery through a selection switch, the switching relay controls the selection switch, the transformers are 2 groups and respectively output DC power supplies DC1 and DC2, and the DC power supply system further comprises 4 diodes which are respectively D1, D2, D3 and D4, two ends of the DC power supply DC1 are respectively connected with a negative electrode of the diode D1 and a positive electrode of the diode D2, two ends of the DC power supply DC2 are respectively connected with a positive electrode of the diode D3 and a negative electrode of the diode D4, a negative electrode of the diode D1 is connected with a negative electrode of the diode D3, a contact a is arranged on a connecting line, a positive electrode of the diode D2 is connected with a positive electrode of the diode D4, a contact b is arranged on the connecting line, a positive electrode end and a negative electrode end of the storage battery are respectively connected with a contact c and a contact D, a positive electrode end of the DC power supply DC3 and a negative electrode of the DC power supply J2 are respectively used as a common switch J1 and a common switch J2, and a common switch J1, and a common switch J2, and a contact b are respectively, and a selectable contact, and a switch J2, and a contact b, and a switch J2, and a selectable contact, and a switch J2 are respectively; one end of the switching relay is connected with the anodes of the diodes D2 and D4, and the other end of the switching relay is connected with the cathodes of the diodes D1 and D3.
2. A DCS power supply apparatus as set forth in claim 1, wherein said storage battery is provided on an output side of the DC power supply DC 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123172429.3U CN217904089U (en) | 2021-12-15 | 2021-12-15 | DCS power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123172429.3U CN217904089U (en) | 2021-12-15 | 2021-12-15 | DCS power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217904089U true CN217904089U (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123172429.3U Active CN217904089U (en) | 2021-12-15 | 2021-12-15 | DCS power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217904089U (en) |
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2021
- 2021-12-15 CN CN202123172429.3U patent/CN217904089U/en active Active
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