Hydropower station monitoring system and method based on fusion vibration online monitoring data

Abstract

The invention belongs to the technical field of hydroelectric detection, and discloses a hydroelectric station monitoring system and method based on fusion vibration online monitoring data. In combination with an existing monitoring system, vibration and throw data of the generator set are collected, processed and stored in real time and fused with traditional monitoring data such as electrical monitoring data and hydraulic monitoring data, and a comprehensive data processing and analyzing platform is formed. The system comprises a vibration online monitoring data transmission module, a data storage module and a data display module, realizes full-process management of data from acquisition, transmission and storage to visualization, and supports trend analysis and fault prediction. The real-time monitoring and potential fault prediction capabilities of the operation state of the unit are remarkably improved, and the operation safety and the operation and maintenance efficiency of the hydropower station are improved by automatically triggering a warning or maintenance instruction. Meanwhile, on the basis of fusion design of an existing monitoring system, a new system does not need to be additionally added, the system structure is optimized, the implementation cost is reduced, and the hydropower station is assisted to develop towards the intelligent direction.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydropower detection, and in particular relates to a hydropower station monitoring system and method based on fusion of pendulum online monitoring data. Background Art

[0002] The monitoring system of a hydropower station is a comprehensive system that integrates multiple functions. Its main task is to monitor and control the water transmission and power generation system, hydraulic machinery and systems, electrical equipment and systems, flood discharge gates and hydraulic structures, etc. It also has the function of automatically handling accidents. Once an accident occurs, the system can automatically cut off the faulty equipment to prevent the accident from expanding, thus ensuring the safe, efficient and economical operation of the hydropower station.

[0003] The online vibration and sway monitoring system can collect and analyze data in real time, providing detailed information about the health of the equipment. It is usually used to continuously monitor the generator set or other rotating equipment to evaluate its vibration and sway status, so as to predict possible failures or problems.

[0004] However, the existing hydropower station monitoring system does not include the data of the online monitoring system of the oscillation, and cannot fully utilize this information for equipment status evaluation, fault diagnosis and performance optimization. In addition, in the existing architecture scheme for the construction of the distributed status monitoring and diagnosis platform for hydropower units, the distribution of hydropower station measurement equipment and the existing equipment on site are ignored, and the method of rebuilding a new system is adopted, resulting in repeated waste of equipment resources. With the promotion of the construction of smart hydropower plants, the dependence of new smart hydropower plants on data has gradually increased, highlighting the importance of production data. Summary of the invention

[0005] The object of the present invention is to provide a hydropower station monitoring system and method based on the fusion of online vibration monitoring data to address the above-mentioned problems, in order to improve the existing hydropower station monitoring system, which requires the addition of other systems, and the data collection and analysis are not timely, and the health status of the equipment cannot be monitored in real time, thus leading to accidents.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A hydropower station monitoring system based on the integration of online monitoring data of vibration and swing. On the basis of the existing hydropower station monitoring system, the hydropower station monitoring system is integrated with the online monitoring data of vibration and swing. The system includes an online monitoring data storage module for vibration and swing, a data storage module and a data display module; the online monitoring data storage module for vibration and swing is connected to the existing hydropower station monitoring system, and the online monitoring data storage module is used to monitor the vibration and swing data and transmit the data to the data storage module; the data storage module is divided into a real-time data module and a historical data module, and the data first enters the real-time data module. When new data enters the real-time data module, the old data in the real-time data module is transferred to the historical data module for storage; the data display module retrieves the data in the data storage module to generate a trend analysis report, which is used to display the monitoring data to the user in real time.

[0008] In order to monitor and process the data of the hydropower station without adding additional systems on the infrastructure of the existing hydropower station monitoring system, the hydropower station monitoring system that monitors the online data of the vibration is integrated with the existing system, the hydropower station data is collected and analyzed, the equipment status is monitored in real time, the occurrence of accidents is predicted, and early warning and processing are carried out to avoid accidents.

[0009] Furthermore, the online vibration monitoring data transmission module has a unified coding format with the existing hydropower station monitoring system, and accesses, processes, stores and accesses data through the online vibration monitoring data transmission module; the online vibration monitoring data transmission module sends the received data to the data storage module through the network; and there are multiple online vibration monitoring data transmission modules, and multiple online vibration monitoring data transmission modules can receive and send data at the same time.

[0010] Furthermore, the receiving end of the data storage module is connected to the data receiving module of the computer monitoring system, and the data receiving module of the computer monitoring system uniformly receives the data transmitted by the vibration online monitoring data transmission module. The output end of the data storage module is connected to the PC, and the PC outputs the data visualization image.

[0011] Furthermore, the data display module includes a PC, which is connected to the real-time data module and the historical data module of the data storage module respectively. The real-time data module generates a real-time data change image through the PC, and the historical data module generates a historical data trend image through the PC.

[0012] Furthermore, the data storage module is connected to the big data analysis and application module through a data external interface, and the big data analysis and application module calls the data in the data storage module for analysis, prediction and alarm.

[0013] Furthermore, a method for monitoring a hydropower station based on integrating online monitoring data of swing, the method includes producing data in a safe area of ​​the power station and storing data in information area III; the safe area of ​​the power station is responsible for collecting, processing and transporting data, the safe area includes a firewall, a communication data acquisition workstation and a converged ring network switch, the forward isolation device is used to isolate information area III and the safe area to ensure the safety of the entire system; the communication data acquisition workstation is used for data collection and data analysis and upload; the converged ring network switch distributes data from each monitoring device; information area III is responsible for remote reception and diagnosis of data, information area III includes multiple servers and data center equipment; on-site equipment collects swing data, transmits the data to the converged ring network switch in the safe area, the communication data acquisition workstation collects and analyzes the data and uploads it, the data is transmitted to information area III through the forward isolation device, and information area III performs real-time data display, historical data query and display, equipment online monitoring and early warning, etc.

[0014] Furthermore, the power station safety zone includes safety zone I and safety zone II. Safety zone II is responsible for collecting swing data of on-site equipment of the hydropower station. Safety zone II includes detection equipment and data acquisition terminals. The detection equipment is used to collect the operating status of the equipment in real time, and the data acquisition terminal preliminarily summarizes and formats the collected swing data; then, the received data of safety zone II is sent to the communication acquisition workstation of safety zone I through the firewall, and the data is uniformly encoded; the operating status of the on-site equipment of the hydropower station is collected by the sensors of the detection equipment, and the collected data is uploaded to the converged ring network switch of safety zone II through the data acquisition terminal.

[0015] Furthermore, after the security zone I receives the data transmitted from the security zone II through the firewall, the data is collected by the converged ring network switch to the communication data acquisition workstation; after the communication data acquisition workstation performs preliminary processing on the data, the data from the security zone I is transmitted to the information zone III through the forward isolation device.

[0016] Furthermore, the information area III includes a data server cluster, a communication server, an information query server, a reporting station and a maintenance station; the data server cluster integrates a variety of servers, corresponding to different data processing functions according to the type of data; the communication server includes internal intranet communication and external extranet communication, and data communicates with internal or external devices through the communication server; the information query server provides data query services for users, and queries data through parameters input by users; the reporting station provides data reports, which are stored in the server for users to query; and the maintenance station provides data maintenance services for information area III.

[0017] Furthermore, the data transmission process is specifically as follows: the online monitoring system is used as the data source, and the detection data is generated by the online monitoring system; the online monitoring system transmits the data to the control area acquisition server through the TCP protocol or message queue. The data needs to be transmitted across areas, and the data is connected to the non-control area server through the firewall; the non-control area server summarizes the power plant data, and transmits the data to the information area III communication server through the forward isolation device; the information area III communication server transmits various types of data to the data server cluster for storage through a dedicated channel, and calls the data through an external application.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] 1. By collecting and processing the vibration and swing data of the generator set in real time, and integrating the online monitoring data of the vibration and swing with other traditional monitoring data (such as electrical parameters, hydraulic parameters, etc.), a comprehensive data processing and analysis platform is formed to provide data support for advanced data processing algorithms and models, so that the monitoring system can analyze the operating status of the unit in real time, predict potential failures, and automatically trigger corresponding warnings or maintenance instructions. The safety of the operation of the hydropower station unit, the ability to predict failures, the efficiency of operation and maintenance, and the depth of data analysis are improved.

[0020] 2. A hydropower station monitoring system that integrates the online monitoring data of the swing vibration based on the existing computer monitoring system without adding other systems can not only simplify the system structure, but also realize the intelligence of the hydropower plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the system structure of the present invention;

[0022] Figure 2 It is the system networking topology diagram of the present invention;

[0023] Figure 3 It is a data flow diagram of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] like Figure 1 As shown, a hydropower station monitoring system based on the integration of online monitoring data of pendulum vibration maintains the initial computer monitoring system architecture unchanged and realizes data communication with the online monitoring system of pendulum vibration under the condition of meeting the safety protection system.

[0027] The system includes a vibration online monitoring data transmission module, a data storage module and a data display module;

[0028] The online monitoring and data transmission module for swing is connected to the existing hydropower station monitoring system. The online monitoring and data transmission module for swing is used to monitor the swing data and transmit the data to the data storage module.

[0029] The data transmission module for online vibration monitoring is uniformly encoded based on the encoding format of the original computer monitoring system, and completes the unified management of the access, processing, storage and access of the online vibration monitoring data.

[0030] The data storage module is divided into a real-time data module and a historical data module. Data first enters the real-time data module. When new data enters the real-time data module, the old data in the real-time data module is transferred to the historical data module for storage.

[0031] The data display module retrieves data from the data storage module to generate a trend analysis report for displaying monitoring data to users in real time.

[0032] With condition maintenance as the core business line, the system realizes common monitoring, diagnosis, decision-making, analysis and other functions for the oscillation equipment of the hydropower plant. At the same time, in order to improve the expansion capability of the system, it supports the connection of infrastructure through the system's open interface, and can integrate data from other online monitoring systems such as turbine units.

[0033] The vibration pendulum online monitoring data transmission module has a unified coding format with the existing hydropower station monitoring system, and accesses, processes, stores and accesses data through the vibration pendulum online monitoring data transmission module; the vibration pendulum online monitoring data transmission module sends the received data to the data storage module through the network; and there are multiple vibration pendulum online monitoring data transmission modules, and multiple vibration pendulum online monitoring data transmission modules can receive and send data at the same time.

[0034] Multiple vibration online monitoring data transmission modules can process large amounts of data and monitor more types of data at the same time, and can predict potential failures and issue alarms in a timely manner.

[0035] The receiving end of the data storage module is connected to the data receiving module of the computer monitoring system, which uniformly receives the data transmitted by the vibration online monitoring data transmission module. The output end of the data storage module is connected to the PC, which outputs the data visualization image.

[0036] The real-time data module first receives the data and displays the data on the PC, so that users can monitor the system operation in real time; the historical data module receives the data from the real-time data module and then stores the data. The real-time data module can call the data in the historical data module at any time. At the same time, the historical data module is connected to the PC to generate a trend curve of the historical data on the PC, which is convenient for analyzing the cause of the fault.

[0037] In order to meet the requirements of computer monitoring system adopting service-oriented (SOA) architecture and IEC61970 CIM / CIS, IEC61850 international standards, such as Figure 1 As shown in the figure, the hydropower station monitoring system integrating the online monitoring data of the swing relies on the computer monitoring system to be low-coupled in terms of functions, and has the functions of system configuration, data acquisition, data transmission, data storage, data display and remote access support, and has high scalability. According to the actual distribution and operation and maintenance of each production system in the hydropower plant, and under the premise of complying with the requirements of the "Regulations on Safety Protection of Power Secondary Systems", considering that the system obtains the data source of the online monitoring data of the swing belonging to the production control area, according to the production monitoring data acquisition requirements of the control area, a data aggregation switch must be deployed; the data is connected to the firewall after the aggregation switch; it is connected to the communication data acquisition workstation; the data is forwarded to the information management area through the acquisition server in the non-control area, and physical isolation devices must be deployed between the non-control area and the information management area.

[0038] Reference Figure 1 , Figure 1 Below is the swing online monitoring data transmission module, which is connected to the existing hydropower station monitoring system, accesses, processes, stores and accesses the swing data, and then sends the swing data to the data storage module through network communication. In the above process, the data receiving area of ​​the computer monitoring system will uniformly encode the data, and then transmit the data to the data storage module. The data storage module stores real-time data through the real-time database RTDB. When the data storage module receives new data, the historical data will be input from the real-time database RTDB to the data storage DMServer, and the data storage DMServer will store the historical data. The data in the real-time database RTDB and the data storage DMServer will be visualized in the computer monitoring system. The data storage DMServer is connected to the big data analysis and application system, and the historical data is analyzed and judged through the big data analysis and application system, so as to predict faults and make timely adjustment measures.

[0039] In order to visualize the data, the data display module includes a PC, which is connected to the real-time data module and the historical data module of the data storage module respectively. The real-time data module generates a real-time data change image through the PC, and the historical data module generates a historical data trend image through the PC.

[0040] In order to realize fault warning, the data storage module is connected with the big data analysis and application module through the data external interface, and the big data analysis and application module calls the data in the data storage module for analysis, prediction and alarm.

[0041] like Figure 2 As shown, a hydropower station monitoring method based on the fusion of swing online monitoring data, the method includes producing data in the power station safety area and storing the data in the information area III;

[0042] The power station safety zone is responsible for collecting, processing and transporting data. The safety zone includes a firewall, a communication data collection workstation and a converged ring network switch. The forward isolation device is used to isolate the information zone III and the safety zone to ensure the safety of the entire system; the communication data collection workstation is used for data collection and data analysis and uploading; the converged ring network switch distributes the data of each monitoring device;

[0043] Information Area III is responsible for remote receiving and diagnosis of data. Information Area III includes multiple servers and data center equipment.

[0044] The specific working process is as follows: the on-site equipment collects vibration data and transmits the data to the converged ring network switch in the safe area. The communication data acquisition workstation collects and analyzes the data and uploads it. The data is transmitted to Information Area III through the forward isolation device. Information Area III displays the data in real time, queries and displays historical data, and performs online monitoring and early warning of equipment.

[0045] The power station safety zone includes safety zone I and safety zone II. Safety zone II is responsible for the swing data collection of the hydropower station's on-site equipment. Safety zone II includes detection equipment and data acquisition terminals. The detection equipment is used to collect the equipment's operating status in real time, and the data acquisition terminal performs preliminary summary and formatting of the collected swing data; then, the received data from safety zone II is sent to the communication acquisition workstation in safety zone I through the firewall, and the data is uniformly encoded; the operating status of the hydropower station's on-site equipment is collected through the sensors of the detection equipment, and the collected data is uploaded to the converged ring network switch in safety zone II through the data acquisition terminal.

[0046] The data flow is positive, that is, from security zone II to security zone I, and data can only pass in one direction. A positive isolation device is set between security zone I and information zone III to prevent data from flowing from information zone III to security zone I, thereby ensuring data security.

[0047] After the security zone I receives the data transmitted by the security zone II through the firewall, the data is collected by the converged ring network switch to the communication data acquisition workstation; after the communication data acquisition workstation performs preliminary processing on the data, the data of the security zone I is transmitted to the information zone III through the forward isolation device.

[0048] The information area III includes a data server cluster, a communication server, an information query server, a report station and a maintenance station;

[0049] The data server cluster integrates multiple servers, corresponding to different data processing functions according to the data category;

[0050] The communication server includes internal intranet communication and external extranet communication, and data is communicated with internal or external devices through the communication server;

[0051] The information query server provides data query services for users, and queries data through parameters input by users;

[0052] The report station provides data reports, which are stored in the server for users to query;

[0053] The maintenance station provides data maintenance services for information area III.

[0054] Reference Figure 2 , set up security zone II and information zone III for cross-zone data acquisition and storage; security zone II is equipped with swing data acquisition equipment, and the collected data is transmitted to security zone I by security zone II, and the data is forwarded and transmitted through the converged ring network switch, which can improve efficiency to a certain extent, and the converged ring network switch supports access control lists, which can restrict unauthorized devices from accessing the network, thereby improving data security. After passing through the switch, the data enters the communication data acquisition workstation through the firewall, and the communication data acquisition workstation performs preliminary processing on the data to ensure the validity and consistency of the data. The processed data is transmitted to information zone III by the communication data acquisition workstation through the forward isolation device. Security zone I and information zone III are equipped with forward isolation devices, and data is communicated in one direction. Information zone III remotely receives and diagnoses data, and information zone III includes multiple servers and remote diagnosis centers, which can query, communicate and diagnose data.

[0055] In addition, attention should still be paid when networking. In order to reserve production data for other equipment of the online monitoring system (such as excitation system, speed regulator system, etc.) in the future, it is necessary to obtain it from the PLC modules of different systems of each unit. Most PLC modules only support serial communication. Considering factors such as communication distance, serial communication signal attenuation, and possible interference in the complex production environment, serial port conversion equipment can be reserved for deployment; if the serial port conversion equipment is far away from the collection equipment, optoelectronic conversion equipment should be reserved first.

[0056] like Figure 3 As shown in the figure, the data transmission process is as follows:

[0057] The online monitoring system is used as a data source, and the online monitoring system generates detection data;

[0058] The online monitoring system transmits data to the control area acquisition server through the TCP protocol or message queue. The data needs to be transmitted across areas and connected to the non-control area server through the firewall; the non-control area server aggregates the power plant data and transmits the data to the information area III communication server through the forward isolation device; the information area III communication server transmits various types of data to the data server cluster for storage through a dedicated channel, and calls the data through external applications.

[0059] The online monitoring data of the pendulum swing is deployed in the control area of ​​the power station by the data collection and data transmission service that supports multiple types of communication protocols and supports cross-isolation communication to meet the production safety requirements of the hydropower station. The production monitoring data is transmitted to the information area of ​​the hydropower station in real time across isolation. On the basis of meeting the storage requirements of the computer monitoring system, the online monitoring data of the pendulum swing is classified and stored as point value data and waveform data. Data access meets the support of mainstream programming languages ​​such as C++, Java, Python, etc., has good scalability, and provides multiple types of interface functions for third-party calls.

[0060] Reference Figure 3 The hydropower station monitoring system that integrates the online monitoring data of the pendulum swing adapts the corresponding TCP dedicated protocol or message queue forwarding method to the production data of the online monitoring system, and connects the production data to the non-control area server through the firewall; the non-control area server aggregates the production data on the power station side and transmits the production data to the data forwarding server in the information management area through the forward isolation device; the data forwarding server in the information management area transmits various types of data to the cluster data storage server through a dedicated channel. This process includes the full-link integration of data from collection to application, which not only ensures real-time performance, but also takes into account security and reliability.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydropower station monitoring system based on the integration of online monitoring data of vibration and pendulum, based on the existing hydropower station monitoring system, the hydropower station monitoring system integrating online monitoring data of vibration and pendulum, characterized in that: The system includes a vibration online monitoring data transmission module, a data storage module and a data display module; The online monitoring and data transmission module for swing is connected to the existing hydropower station monitoring system. The online monitoring and data transmission module for swing is used to monitor the swing data and transmit the data to the data storage module. The data storage module is divided into a real-time data module and a historical data module. Data first enters the real-time data module. When new data enters the real-time data module, the old data in the real-time data module is transferred to the historical data module for storage. The data display module retrieves data from the data storage module to generate a trend analysis report for displaying monitoring data to users in real time.

2. A hydropower station monitoring system based on fusion of online vibration monitoring data according to claim 1, characterized in that: The online vibration monitoring data transmission module has a unified coding format with the existing hydropower station monitoring system, and accesses, processes, stores and accesses data through the online vibration monitoring data transmission module; the online vibration monitoring data transmission module sends the received data to the data storage module through the network; and there are multiple online vibration monitoring data transmission modules, and multiple online vibration monitoring data transmission modules can receive and send data at the same time.

3. A hydropower station monitoring system based on fusion of online vibration monitoring data according to claim 1, characterized in that: The receiving end of the data storage module is connected to the data receiving module of the computer monitoring system, and the data receiving module of the computer monitoring system uniformly receives the data transmitted by the vibration online monitoring data transmission module. The output end of the data storage module is connected to the PC, and the PC outputs the data visualization image.

4. A hydropower station monitoring system based on fusion of online vibration monitoring data according to claim 1, characterized in that: The data display module includes a PC, which is connected to the real-time data module and the historical data module of the data storage module respectively. The real-time data module generates a real-time data change image through the PC, and the historical data module generates a historical data trend image through the PC.

5. The hydropower station monitoring system based on the integration of online oscillation monitoring data according to claim 1 is characterized in that: The data storage module is connected to the big data analysis and application module through a data external interface, and the big data analysis and application module calls the data in the data storage module for analysis, prediction and alarm.

6. A method for monitoring a hydropower station based on integrating online monitoring data of pendulum vibration, using a monitoring system for a hydropower station based on integrating online monitoring data of pendulum vibration according to any one of claims 1 to 5, characterized in that: The method includes producing data in a power plant safety area and storing the data in information area III; The power station safety zone is responsible for collecting, processing and transporting data. The safety zone includes a firewall, a communication data collection workstation, a converged ring network switch, and a forward isolation device. The forward isolation device is used to isolate the information zone III and the safety zone to ensure the safety of the entire system. The communication data collection workstation is used for data collection and data analysis and uploading. The converged ring network switch distributes data of each monitoring device; Information Area III is responsible for remote receiving and diagnosis of data. Information Area III includes multiple servers and data center equipment. The on-site equipment collects vibration data and transmits the data to the converged ring network switch in the safe area. The communication data acquisition workstation collects and analyzes the data and uploads it. The data is transmitted to Information Area III through the forward isolation device. Information Area III displays the data in real time, queries and displays historical data, and performs online monitoring and early warning of equipment.

7. A method for monitoring a hydropower station based on integrating online monitoring data of oscillation according to claim 6, characterized in that: The power station safety zone includes safety zone I and safety zone II. Safety zone II is responsible for collecting the swing data of the equipment on site of the hydropower station. Safety zone II includes detection equipment and data acquisition terminals. The detection equipment is used to collect the operating status of the equipment in real time. The data acquisition terminal performs preliminary summary and formatting of the collected swing data. Then, the received data from Security Zone II is sent to the communication collection workstation of Security Zone I through the firewall, and the data is uniformly encoded; The operating status of the on-site equipment of the hydropower station is collected through the sensors of the detection equipment, and the collected data is uploaded to the converged ring network switch in the safety zone II through the data acquisition terminal.

8. A method for monitoring a hydropower station based on integrating online monitoring data of oscillation according to claim 7, characterized in that: After the security zone I receives the data transmitted by the security zone II through the firewall, the data is collected by the converged ring network switch to the communication data acquisition workstation; after the communication data acquisition workstation performs preliminary processing on the data, the data of the security zone I is transmitted to the information zone III through the forward isolation device.

9. A method for monitoring a hydropower station based on integrating online monitoring data of oscillation according to claim 6, characterized in that: The information area III includes a data server cluster, a communication server, an information query server, a report station and a maintenance station; The data server cluster integrates multiple servers, corresponding to different data processing functions according to the data category; The communication server includes internal intranet communication and external extranet communication, and data is communicated with internal or external devices through the communication server; The information query server provides data query services for users, and queries data through parameters input by users; The report station provides data reports, which are stored in the server for users to query; The maintenance station provides data maintenance services for information area III.

10. A method for monitoring a hydropower station based on integrating online monitoring data of oscillation according to claim 6, characterized in that: The specific data transmission process is as follows: The online monitoring system is used as a data source, and the online monitoring system generates detection data; The online monitoring system transmits data to the collection server in the control area through the TCP protocol or message queue. The data needs to be transmitted across regions and connected to the server in the non-control area through the firewall; The server in the non-control area aggregates the power plant data and transmits the data to the communication server in the information area III via the forward isolation device; The information area III communication server transmits various types of data to the data server cluster through a dedicated channel for storage, and calls the data through external applications.

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