CN217484753U - Hydroelectric power plant auxiliary engine communication monitoring system based on PLC realizes - Google Patents
Hydroelectric power plant auxiliary engine communication monitoring system based on PLC realizes Download PDFInfo
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- CN217484753U CN217484753U CN202221016309.6U CN202221016309U CN217484753U CN 217484753 U CN217484753 U CN 217484753U CN 202221016309 U CN202221016309 U CN 202221016309U CN 217484753 U CN217484753 U CN 217484753U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The utility model discloses a hydroelectric power plant's auxiliary engine communication monitored control system based on PLC realizes, its characterized in that: the system comprises a system monitoring center, a data transmission unit and a plurality of auxiliary machine units, wherein each auxiliary machine unit comprises a PLC (programmable logic controller) and auxiliary machine equipment, a PLC module is respectively connected with an analog quantity module, a switching value module and a serial port communication module through a base, the analog quantity module is connected with a frequency converter, an instrument and other equipment, and the switching value module is connected with a driving device of the auxiliary machine equipment; one end of the data transmission unit is connected with a communication module embedded in the PLC module through an RS485 interface, and the other end of the data transmission unit is connected with a system monitoring center through an RJ45 interface. The utility model is convenient in operation, the reliability is high, can realize the collection to hydroelectric power plant auxiliary engine equipment measurement station information through the PLC module, and the normal operating of simultaneous control auxiliary engine equipment realizes real time monitoring, reduces personnel's input, solves the not high and poor problem of processing timeliness of degree of automation, supports IEC61850 agreement, and the wisdom hydroelectric power plant function of being convenient for extends.
Description
Technical Field
The utility model relates to an equipment remote monitoring technical field especially relates to a hydroelectric power plant auxiliary engine communication monitored control system based on PLC realizes.
Background
The PLC is widely applied to industries such as chemical industry, electric power and the like due to simple structure, high reliability and strong usability, and becomes the most main control device in industrial fields. By utilizing the serial communication and Ethernet communication functions of the PLCs, the remote monitoring of a plurality of PLCs by a computer can be realized.
In the power generation process of the existing hydraulic power plant, besides main equipment such as a water turbine and a generator, a plurality of auxiliary equipment used for being matched with power generation are arranged, however, under the operation condition of the existing hydraulic power plant, most auxiliary machines are operated on the spot and do not have a remote monitoring function, once the auxiliary equipment breaks down and cannot be processed in time, the operation of a main machine can be influenced, great power generation accidents can be caused, and enterprise benefits are influenced.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art, an object of the present invention is to provide a hydraulic power plant auxiliary machine communication monitoring system based on PLC realization.
In order to achieve the above object, the technical solution of the present invention is: a hydraulic power plant auxiliary engine communication monitoring system based on PLC comprises a system monitoring center, a data transmission unit and a plurality of auxiliary engine units, wherein each auxiliary engine unit comprises a PLC controller and auxiliary engine equipment, the PLC controller module is respectively connected with an analog quantity module, a switching value module and a serial port communication module through a base, the analog quantity module is connected with a frequency converter, an instrument and other equipment, and the switching value module is connected with a driving device of the auxiliary engine equipment; one end of the data transmission unit is connected with a serial port communication module embedded in the PLC module through an RS485 interface, and the other end of the data transmission unit is connected with a system monitoring center through an RJ45 interface.
The hydraulic power plant auxiliary engine communication monitoring system based on PLC is characterized in that the data transmission unit comprises a PLC controller module and a serial port communication module.
The hydraulic power plant auxiliary engine communication monitoring system based on PLC is characterized in that the system monitoring center is connected with the data transmission unit through an RJ45 interface integrated with a PLC controller base, and the communication protocol adopts IEC 61850.
Foretell hydraulic power plant auxiliary engine communication monitored control system based on PLC realizes, data transmission unit passes through serial communication module's RS485 interface connection with the auxiliary engine unit, and communication protocol adopts MODBUS RTU.
Foretell hydraulic power plant auxiliary engine communication monitoring system based on PLC realizes, its characterized in that: the auxiliary unit collects data information of equipment such as a frequency converter or an instrument and controls the auxiliary equipment to start and stop through the PLC and the matched analog quantity module and switching value module.
The beneficial effects of the utility model reside in that: the utility model discloses constitute by a control main website (system monitoring center) and a plurality of auxiliary engine control slave station (auxiliary engine unit), carry out data communication through assisting accuse PLC between main website and the slave station, the outstanding characteristics of this system are that field data gathers and equipment control is realized by PLC. The intelligent hydropower station system is convenient to operate, stable in performance, friendly in human-computer interface and convenient to maintain, the communication protocol supports IEC61850, and the intelligent hydropower station system has good expandability for construction of future intelligent hydropower stations.
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Fig. 1 is the utility model discloses a hydraulic power plant auxiliary engine communication monitoring system block diagram.
Detailed Description
As shown in attached figure 1, a hydraulic power plant auxiliary engine communication monitoring system based on PLC implementation comprises a system monitoring center 1, a data transmission unit 2 and a plurality of auxiliary engine units 3, wherein each auxiliary engine unit comprises a PLC (programmable logic controller) module 4 and auxiliary engine equipment 9, the PLC module 4 is respectively connected with an analog quantity module 5, a switching value module 7 and a serial communication module 8 through a base, the analog quantity module is connected with a frequency converter or an instrument 6, and the switching value module 7 is connected with a driving device of the auxiliary engine equipment; one end of the data transmission unit is connected with a serial port communication module 8 embedded in the PLC module 4 through an RS485 interface, and the other end of the data transmission unit is connected with a system monitoring center through an RJ45 interface.
The analog quantity module 5 is matched with the PLC module 4 for use and is provided with 8 independent differential input channels. Each channel may be a 4-20mA signal input. Analog quantity signals such as temperature, pressure, flow and the like of equipment such as a frequency converter or an instrument can be collected. Each path of signal is respectively connected with each independent channel of the analog quantity module, is put into a corresponding data register after AD conversion, is used for the PLC module 4 to read at regular time, and then is transmitted to a system monitoring center through the data transmission unit.
Utilize the PLC controller module (for short forwarding PLC) of data transmission unit to communicate between the PLC controller module of system monitor center and auxiliary unit (for short auxiliary unit control PLC), auxiliary unit control PLC one end links to each other through the RS485 interface mode on the serial ports communication module with forwarding between the PLC, communication protocol adopts MODBUS RTU, the other end passes through the base integrated RJ45 interface and links to each other with system monitor center, make auxiliary unit data can monitor at system monitor center, communication protocol adopts IEC61850, support the intelligent extension of power plant.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a hydroelectric power plant auxiliary engine communication monitoring system based on PLC realizes which characterized in that: the system comprises a system monitoring center (1), a data transmission unit (2) and a plurality of auxiliary machine units (3), wherein each auxiliary machine unit comprises a first PLC (programmable logic controller) module (4), an analog quantity module (5), a switching value module (7), a first serial port communication module (8), a frequency converter or an instrument (6) and auxiliary machine equipment (9), the first PLC module (4) is respectively connected with the analog quantity module (5), the switching value module (7) and the first serial port communication module (8), the analog quantity module (5) is connected with the frequency converter or the instrument (6), and the switching value module (7) is connected with a driving device of the auxiliary machine equipment (9); one end of the data transmission unit (2) is connected with the first serial port communication module (8), and the other end of the data transmission unit is connected with the system monitoring center.
2. The hydraulic power plant auxiliary engine communication monitoring system based on PLC realization of claim 1, characterized by: the first PLC controller module (4) is respectively connected with the analog quantity module (5), the switching value module (7) and the first serial port communication module (8) through the base.
3. The hydraulic power plant auxiliary engine communication monitoring system realized based on PLC of claim 1 is characterized in that: the data transmission unit (2) comprises a second PLC controller module and a second serial port communication module (10), the second serial port communication module (10) is connected with the first serial port communication module (8) through an RS485 interface, and an MODBUS RTU is adopted as a communication protocol.
4. The hydraulic power plant auxiliary engine communication monitoring system realized based on PLC of claim 2 is characterized in that: the system monitoring center (1) is connected with the data transmission unit (2) through an RJ45 interface, and the communication protocol adopts IEC 61850.
5. The hydraulic power plant auxiliary engine communication monitoring system realized based on PLC of claim 4 is characterized in that: and the system monitoring center (1) is connected with the data transmission unit (2) through an RJ45 interface integrated with a second PLC controller module base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221016309.6U CN217484753U (en) | 2022-04-28 | 2022-04-28 | Hydroelectric power plant auxiliary engine communication monitoring system based on PLC realizes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202221016309.6U CN217484753U (en) | 2022-04-28 | 2022-04-28 | Hydroelectric power plant auxiliary engine communication monitoring system based on PLC realizes |
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| CN217484753U true CN217484753U (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221016309.6U Active CN217484753U (en) | 2022-04-28 | 2022-04-28 | Hydroelectric power plant auxiliary engine communication monitoring system based on PLC realizes |
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2022
- 2022-04-28 CN CN202221016309.6U patent/CN217484753U/en active Active
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