Gas turbine power station data remote transmission system

Abstract

The invention provides a remote data transmission system for a gas turbine power station, and aims to solve the problems of remote monitoring of the operation state of a unit and data transmission hysteresis, and finally transmit the operation data of the power station side to the terminal side for monitoring in real time under the condition of ensuring the network security. The invention relates to the field of computer data transmission, which is characterized in that an instruction is sent to an SIS server through an industrial gateway I located in a security area II, after the instruction is received, the SIS server sends a data packet to the industrial gateway I, then the data packet is sent to an industrial gateway II located in a management information large area through a transverse isolation device, and data transmission is realized through a VPN server. And finally, the data is accessed to the data monitoring platform of the central data server. According to the remote data transmission system, the whole-course data is transmitted to the terminal side to be monitored and stored, the stability and safety in the transmission process are guaranteed, and a foundation is laid for further data analysis and unit operation state diagnosis.

Description

Technical Field

[0001] The present invention relates to the field of computer data transmission, and in particular to a gas turbine power station data remote transmission system. Background Art

[0002] Gas turbines, hailed as the "crown jewel" of the manufacturing industry, are crucial core equipment for clean power generation and power plants, and their share of power generation units is increasing annually. Gas turbines feature fast startup time, rapid response, and high operating temperatures, placing high demands on their control systems. The gas turbine DCS system is a crucial component of operation, requiring personnel to monitor data such as lubricating oil temperature, lubricating oil pressure, gearbox vibration, rotor vibration, blade vibration, rotor temperature, and exhaust gas temperature. A single unit requires at least 500 measurement points during operation. To enable unit designers to monitor unit operating status in real time and gain a more timely and accurate understanding of unit performance, a remote data transmission system is required to capture real-time power plant unit operating data for designers' reference. Therefore, designing a remote data transmission system for gas turbine power plants is of paramount importance. Summary of the Invention

[0003] In order to solve the problems of remote monitoring of the unit operating status and data transmission lag, the present invention provides a gas turbine power plant data remote transmission system that can transmit the power plant side operating data to the terminal side for real-time monitoring.

[0004] The technical solution adopted in the present invention comprises the following steps: (1) Industrial Gateway I located in Security Zone II sends a command to the SIS server. After receiving the command, the SIS server sends a data packet to Industrial Gateway I. (2) After receiving the data packet, the industrial gateway I located in the security zone II sends it to the industrial gateway II located in the management information zone through the horizontal isolation device; (3) The industrial gateway II located in the management information area encrypts the data packets through the VPN server encryption device and establishes a data transmission channel with the VPN server decryption device in the public network to realize data transmission; (4) The VPN server decryption device decrypts the encrypted data after receiving it and connects the data to the data monitoring platform of the central data server.

[0005] As a preferred solution of the gas turbine power plant remote data transmission system provided by the present invention, each data measurement point in the SIS server system has a KKS code, and the data remote transmission system standardizes the KKS code so that each power station follows the KKS code encoding rules, and at the same time corresponds the KKS code to the database point. During the data transmission process, each data is affixed with its unique KKS code label, and the data is written into the corresponding measurement point table in the central data server according to the KKS code label.

[0006] As a preferred solution for the remote data transmission system of the gas turbine power plant provided by the present invention, the industrial gateway I reads the unit data from the interface of the SIS server in real time, and stores the data in the industrial gateway II in the safety zone II, and then sends it to the industrial gateway II in the management information zone through the horizontal isolation device.

[0007] As a preferred solution of the gas turbine power plant remote data transmission system provided by the present invention, the lateral isolation device is a one-way transmission device that only allows data to be transmitted from the safety zone II to the management information zone.

[0008] As a preferred solution of the gas turbine power station remote data transmission system provided by the present invention, the VPN server encryption device adopts at least one VPN encryption technology among IPSec, SSL, and L2TP.

[0009] As a preferred solution of the gas turbine power station remote data transmission system provided by the present invention, the data monitoring platform performs real-time analysis, storage and remote real-time monitoring on the received decrypted data.

[0010] The above technical solution has the following beneficial effects: (1) The setting of KKS code labels in the power plant SIS system can avoid data confusion during data transmission and storage, and can also effectively avoid data transmission misalignment caused by changes in the SIS system data point table.

[0011] (2) The horizontal isolation device provided by the present invention adopts a positive network security isolation device that complies with the "National Power Secondary System Security Protection Overall Safety Plan", which can ensure the horizontal isolation between the security zone II and the management zone and the one-way transmission of data packets.

[0012] (3) The VPN encryption device integrates one or more VPN encryption technologies such as IPSec, SSL, and L2TP, and can provide VPN encryption for the data information sent by the Industrial Gateway II, ensuring that the data is not leaked during public network transmission, while preventing public network viruses from endangering the security of the power plant control and management network.

[0013] (4) The VPN decryption device receives the encrypted data transmitted via the public network and decrypts the data, writing the unit operation data to the central data server, while preventing viruses on the public network from invading the company's monitoring platform.

[0014] (5) The present invention can achieve 24-hour uninterrupted acquisition and transmission of power plant data. The delay between the transmitted data and the actual operation data of the power plant does not exceed 3 seconds. Through the one-way isolation network gateway, VPN encryption / decryption equipment and firewall equipment, an information security protection network is formed to achieve remote real-time monitoring of the data operation status.

[0015] The present invention proposes a data remote transmission system based on the integration of the Internet and data encryption / decryption transmission equipment. During the operation of the power plant units, data is transmitted to the terminal side for monitoring and storage throughout the entire process, ensuring the stability and security of the data remote transmission process, laying the foundation for further analysis of data and diagnosis of the unit operation status. In practical applications, it can solve the problems of difficulty and poor timeliness of remote monitoring of existing gas turbine power plants, and is simple to build and easy to maintain, and can be promoted and used on a large scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Integrate topology diagrams for data remote transmission systems and acquisition equipment; Figure 2 The figure is the flow chart of the transmission link. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0018] Example 1, with reference to Figure 1 As shown, the present invention is based on a data remote transmission system integration of a power station SIS system.

[0019] Industrial Gateway I reads unit data from the interface of the power plant SIS system in real time, and sends the data to Industrial Gateway II in the management information area through the horizontal isolation device between the non-control area (safety II area) and the management information area of the power plant. In the power plant SIS system, each data measurement point has a KKS code. The data remote transmission system standardizes the KKS code so that each power plant follows the KKS code encoding rules and corresponds the KKS code to the database point. During the data transmission process, each data is affixed with its unique KKS code label. The central data server then writes the data into the corresponding measurement point table according to the KKS code label to avoid data confusion during data transmission and storage, and can also effectively avoid data transmission dislocation problems caused by changes in the SIS system data point table.

[0020] The horizontal isolation device adopts a network security isolation device (forward type) that complies with the "National Power Secondary System Security Protection Overall Safety Plan" to ensure horizontal isolation between the safety zone II and the management zone, and one-way transmission of data packets.

[0021] The Industrial Gateway II of the management information area receives data from the horizontally isolated devices and transmits the data to the central data server through the VPN encryption device and VPN decryption device.

[0022] The VPN encryption device integrates one or more VPN encryption technologies such as IPSec, SSL, and L2TP to provide VPN encryption for data information sent by the Industrial Gateway II in the management information area, ensuring that data is not leaked during public network transmission, while preventing public network viruses from endangering the security of the power plant control and management network.

[0023] The VPN decryption device receives encrypted data transmitted via the public network and decrypts the data, writing the unit operation data to the central data server, while preventing viruses on the public network from invading the company's monitoring platform.

[0024] Example 2, reference Figure 2 As shown, the transmission process steps of the present invention are as follows: The industrial gateway I located in the safety zone II sends instructions to the SIS system server database. After receiving the instructions, the SIS system server database sends a data packet to the industrial gateway I.

[0025] After receiving the data packet, Industrial Gateway I located in Security Zone II stores the data in Industrial Gateway II in Security Zone II, and sends the data to Industrial Gateway II located in the management information zone through the forward isolation device. It then performs a communication check, encrypts the data packet through the VPN server, and establishes a data transmission channel with the VPN device on the Dongqi side in the public network to realize data transmission.

[0026] After the data reaches Dongqi, it is decrypted through the VPN server, written into the central data server, and connected to the data monitoring platform.

[0027] Through the above steps, remote transmission of power plant data can be achieved, ensuring the security and stability of data transmission while maintaining the accuracy and effectiveness of the data.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A remote data transmission system for a gas turbine power plant, characterized in that: The following steps are involved: (1) Industrial Gateway I located in Security Zone II sends a command to the SIS server. After receiving the command, the SIS server sends a data packet to Industrial Gateway I. (2) After receiving the data packet, the industrial gateway I located in the security zone II sends it to the industrial gateway II located in the management information zone through the horizontal isolation device; (3) The industrial gateway II located in the management information area encrypts the data packets through the VPN server encryption device and establishes a data transmission channel with the VPN server decryption device in the public network to realize data transmission; (4) The VPN server decryption device decrypts the encrypted data after receiving it and connects the data to the data monitoring platform of the central data server.

2. The gas turbine power plant remote data transmission system according to claim 1, characterized in that: Each data measurement point in the SIS server system has a KKS code, and the data remote transmission system standardizes the KKS code so that each power station follows the KKS code encoding rules.

3. The gas turbine power plant remote data transmission system according to claim 2, characterized in that: The KKS code corresponds to the database point, and the data is written into the corresponding measurement point table in the central data server according to the KKS code label.

4. The gas turbine power plant remote data transmission system according to claim 2, characterized in that: Each data in the data transmission process is labeled with a unique KKS code.

5. The gas turbine power plant remote data transmission system according to claim 1, characterized in that: The industrial gateway I reads the unit data from the interface of the SIS server in real time, stores the data in the industrial gateway II of the safety zone II, and then sends the data to the industrial gateway II of the management information zone through the horizontal isolation device.

6. The gas turbine power plant remote data transmission system according to claim 1, characterized in that: The transverse isolation device is a one-way transmission device.

7. The gas turbine power plant remote data transmission system according to claim 1, characterized in that: The horizontal isolation device only allows data to be transmitted from the security zone II to the management information zone.

8. The gas turbine power plant remote data transmission system according to claim 1, characterized in that: The VPN server encryption device adopts at least one VPN encryption technology among IPSec, SSL and L2TP.

9. The gas turbine power plant remote data transmission system according to claim 1, characterized in that: The data monitoring platform performs real-time analysis, storage and remote real-time monitoring on the received decrypted data.

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