CN212969173U - Remote control station power monitoring system based on IA system - Google Patents
Remote control station power monitoring system based on IA system Download PDFInfo
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- CN212969173U CN212969173U CN202021671664.8U CN202021671664U CN212969173U CN 212969173 U CN212969173 U CN 212969173U CN 202021671664 U CN202021671664 U CN 202021671664U CN 212969173 U CN212969173 U CN 212969173U
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Abstract
The utility model relates to a remote control station power monitored control system based on IA system. The redundant configuration of all equipment power supplies cannot be realized in a control station of a power supply system of a remote control station at present, the requirement of reliable configuration of a DCS (distributed control system) of a thermal power plant is not met, and after a power supply of a control loop fails, the system cannot accurately position loop failure equipment. The utility model discloses the constitution includes: communication equipment power supply circuit and signal circuit, communication equipment power supply circuit include 220VAC power supply (1), 220VAC power supply pass through air switch (2) and 24VDC power module (3) and connect, signal circuit including receiving warning fastener (4), communication switch (6), 24VDC power module respectively with receiving warning fastener the communication switch with connect, communication switch and fiber termination box (7) connect. The utility model is used for remote control station power monitored control system based on IA system.
Description
The technical field is as follows:
the utility model relates to a control station power monitored control system technical field, concretely relates to remote control station power monitored control system based on IA system.
Background art:
the DCS system is the core of a modern power plant and controls the whole production process of the power plant, equipment in the production plant is scattered, and a remote control station is an indispensable configuration of the DCS system and relates to important systems such as coal conveying and circulating water. By analyzing non-stop accidents of power plants in recent years, the fault of the DCS is an important reason for non-stop, the power supply system is the basis for keeping the long-term and stable work of the DCS, and once the control (sub) system has a power failure fault, the operation of a unit is interrupted, so that serious accidents of power grid fluctuation or damage to main equipment and auxiliary equipment are caused.
The remote control station is unattended and far away from the control center, the carried equipment is generally a whole-plant public system, and the importance of the power supply is more important. The main defects of the current power supply system of the remote control station are as follows:
redundant configuration of power supplies of all equipment cannot be realized in the control station, and the requirement on reliable configuration of a DCS (distributed control system) of a thermal power plant is not met; after the power failure of the control loop, the system cannot accurately locate the loop failure device, and needs to search and judge in sequence, but is limited by the inspection frequency and the skill level of personnel, so that the delay of defect processing is caused, even the defect cannot be found at all, at this time, if the other power module fails, the Communication of the fcm (fieldbus Communication module) and cp (central processor) controllers is interrupted, and the remote device cannot monitor and lose control, so that the unit is stopped.
The utility model has the following contents:
the utility model aims at providing a remote control station power monitored control system based on IA system.
The above purpose is realized by the following technical scheme:
a remote control station power monitoring system based on an IA system comprises: communication equipment power supply circuit and signal circuit, communication equipment power supply circuit include 220VAC power supply, 220VAC power supply pass through air switch and 24VDC power module and connect, signal circuit including receiving warning fastener, communication switch, 24VDC power module respectively with receiving warning fastener the communication switch with connect, communication switch and fiber terminal box connect, at the remote control station end the communication switch be connected with the fieldbus communication fastener, at the control center end the communication switch be connected with the CP controller.
In the power monitoring system of the remote control station based on the IA system, the 24VDC power module, the receiving alarm card, the field bus communication card, the communication switch, the optical fiber terminal box and the CP controller are electrically connected.
The power monitoring system of the remote control station based on the IA system is characterized in that a 220VAC power supply comprises a security section power supply and a UPS power supply, a 24VDC power supply module is a single-input power supply, a double-output power supply and a UPS power supply, and 24V electric energy output by the 24VDC power supply module is respectively used for supplying power to two paths of communication switches.
Has the advantages that:
1. the utility model relates to a remote control station power monitored control system based on IA system, this system simple structure, simple to operate, discovery equipment trouble back, but replacement strong, sexual valence relative altitude, accurate to the location of trouble power module, can direct location to installation rack, can eliminate the defect fast after the trouble, realized the redundant power supply of communication switch dual power supply, satisfy DCS system power configuration requirement.
The utility model discloses newly-increased receipt warning fastener on the basis of original DCS system, it is high to receive warning fastener reliability, has reduced the frequency that personnel patrolled and examined, has reduced the routine maintenance cost of remote control station.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. 220VAC power supply, 2, air switch, 3, 24VDC power module, 4, receive warning fastener, 5, fieldbus communication fastener, 6, communication switch, 7, fiber terminal box, 8, communication optic fibre, 9, CP controller.
The specific implementation mode is as follows:
example 1:
a remote control station power monitoring system based on an IA system comprises: the communication equipment power supply loop comprises a 220VAC power supply 1, the 220VAC power supply is connected with a 24VDC power module 3 through an air switch 2, the signal loop comprises a receiving alarm clamping piece 4 and a communication switch 6, the 24VDC power module is respectively connected with the receiving alarm clamping piece, the communication switch and a connection box, the communication switch is connected with an optical fiber terminal box 7, the communication switch at a remote control station end is connected with a field bus communication clamping piece 5, and the communication switch at a control center end is connected with a CP controller 9.
Example 2:
according to embodiment 1, the power monitoring system of the IA system-based remote control station includes the 24VDC power module, the receiving alarm card, the fieldbus communication card, the communication switch, the fiber optic terminal box, and the CP controller, which are electrically connected.
Example 3:
according to the power monitoring system of the remote control station based on the IA system in the embodiment 1, the 220VAC power supply comprises a security section power supply and a UPS power supply, the 24VDC power supply module is a single-input and double-output power supply and is provided with an alarm contact, and 24V electric energy output by the 24VDC power supply module respectively supplies power to two paths of communication switches;
the working principle is as follows: in order to realize I/0 signal transmission with a control center, a power supply monitoring system of the remote control station needs to comprise a signal loop and a communication equipment power supply loop. According to the attached drawing of the specification, a power supply monitoring system of a remote control station comprises 9 parts, wherein equipment supplies power from a 220VAC power supply, a security section and a UPS section provide 220V power for a 24VDC power supply module in a redundant mode, the middle part is isolated by an air switch, and the air switch is properly selected to avoid the power source override tripping phenomenon; the 24VDC power supply module is a single-input double-output 24VDC power supply module with an alarm contact, 24V output is used for supplying power to two paths of communication switches respectively, the alarm normally-closed contact is connected to the receiving alarm card, when the 24VDC power supply module is power-off or has a fault, the contact is closed, the electric signal is converted into an optical signal to realize remote transmission, the optical signal is transmitted to the CP controller through the field bus communication clamping piece, the communication switch, the optical fiber terminal box and the communication optical fiber in sequence, the CP controller receives the signal and reflects the signal on the CRT picture configuration, in the picture configuration, the alarm signal of each module is sent to the corresponding cabinet model, when the inner part of the cabinet breaks down, the cabinet alarm is sent out, the operation and maintenance personnel can directly lock the fault equipment according to the alarm content, under the condition of making safety measures, the defects are eliminated in the shortest time, and the monitoring of the power supply of the remote control station is realized.
Claims (3)
1. A remote control station power monitoring system based on an IA system comprises: communication equipment power supply circuit and signal circuit, characterized by: the communication equipment power supply loop comprises a 220VAC power supply, the 220VAC power supply is connected with a 24VDC power supply module through an air switch, the signal loop comprises a receiving alarm clamping piece and a communication switch, the 24VDC power supply module is respectively connected with the receiving alarm clamping piece and the communication switch, the communication switch is connected with an optical fiber terminal box, the communication switch at a remote control station end is connected with a field bus communication clamping piece, and the communication switch at a control center end is connected with a CP controller.
2. The IA system based remote control station power monitoring system of claim 1, wherein: the 24VDC power supply module, the receiving alarm clamping piece, the field bus communication clamping piece, the communication switch, the optical fiber terminal box and the CP controller are all electrically connected.
3. The IA system based remote control station power monitoring system of claim 1, wherein: the 220VAC power supply comprises a security section power supply and a UPS power supply, the 24VDC power supply module is a single-input and double-output power supply and is provided with an alarm contact, and 24V electric energy output by the 24VDC power supply module respectively supplies power to the two paths of communication switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021671664.8U CN212969173U (en) | 2020-08-12 | 2020-08-12 | Remote control station power monitoring system based on IA system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021671664.8U CN212969173U (en) | 2020-08-12 | 2020-08-12 | Remote control station power monitoring system based on IA system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212969173U true CN212969173U (en) | 2021-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021671664.8U Expired - Fee Related CN212969173U (en) | 2020-08-12 | 2020-08-12 | Remote control station power monitoring system based on IA system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212969173U (en) |
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2020
- 2020-08-12 CN CN202021671664.8U patent/CN212969173U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210413 |