I. INTRODUCTION With the rapid development of China's national economy, the development of urban transportation has become a top priority for urban construction in China. Nearly 15 cities in China plan to vigorously develop and build rail transit, and are currently under construction. The main cities include Shanghai, Beijing, Tianjin, Guangzhou, Shenzhen, and Nanjing. Taking Shanghai as an example only, there will be nine rail transit lines to be put into operation in 2005, and a total of 780 kilometers will be included in the Shanghai rail transit construction plan. Xinhua Company has conducted research and demonstration of technology and market, and since 2000, automation of rail transit (including large railways) has been taken as a new direction for the development of the company's main business. In 2001, Xinhua participated in the bidding for the power monitoring system (including substation automation) of the Shanghai Rail Transit Line 5 (莘闵Light Rail Line), and won the bid with both technology and business, followed by Shanghai Rail Transit. The bid for the northern extension of Metro Line 1 won the bid. In 2001, Xinhua Company made two marks in three local rail transit lines in Shanghai.
At present, the SCADA system of the power monitoring system for the Shanghai Rail Transit Line 5 (Xinhuan Light Rail Line) undertaken by Xinhua has been put into operation.
II. Implementation Plan for Power Monitoring System of Handan Light Rail Line 2.1 General Situation of Power Monitoring System Engineering for Shanghai Jiaotong Light Rail Traffic Engineering 莘闵 Light Rail Transit Line Project From Minhang Station of Metro Line 1 South to Tianxing Road of Minhang, total length 17.04 km Except for Xinzhuang Railway Station (about 0.41 km), which are ground lines, all of them are elevated lines. A total of 11 stations, 1 parking lot.
There are 18 substations along the power supply section of the project: traction substation of Xinzhuang station, buck substation of Xinzhuang station, buck substation of Yucheng station, traction and buck-type hybrid substation of Yindu road station, Yanqiao Station traction and buck hybrid substation, Beiqiao station buck substation, Jianchuan road yard traction, hybrid buck substation, Jianchuan road yard buck substation, Jianchuan road station buck substation, Dongchuan road Station traction and buck hybrid substation, Jinping Road Station buck substation, Huaning Road Station traction box substation, Huaning Road Station buck substation, Wenjing Road Station buck substation, Tianxing Road Station buck substation, control center set up a step-down substation, set a 110/35/10KV main transformer station at the Jianchuan Road depot, and a 35/35KV main transformer station at Yindu Road Station.
The SCADA system of the Shanghai Light Rail Transit Power Monitoring System is composed of a central power monitoring system at the control center, a substation integrated automation system at each substation, and a communication channel. The central power monitoring system is applicable to the above 18 The substations and contact network electric isolation switches are monitored in real time to realize the automatic control and management of substations.
2.2 Control Center Power Monitoring System Architecture The configuration of the monitoring system for the power monitoring system center of Shanghai Jiaotong Light Rail Transit Engineering is as follows:
Its main features include:
A) The system network uses CISCO's 10/100M two-speed adaptive switch. This solution configures dual redundant main networks. Each network uses a CISCO3548 switch and supports access to 48 computers. CISCO3500 series switches have up to 10.8G switching capability, providing reliable protection for non-blocking data flow. In addition, this series of switches also have the ability to expand on Gigabit fiber links, leaving room for future high-level network interconnection.
B) The server and disk array of the control center system selected Compaq products and adopted a high-performance, secure and reliable Unix support platform. The database server is composed of two Unix servers plus one disk array. Two servers share the disk array's shared access arbitrate and switch through the Compaq TruCluster shared software. The disk configuration in the configured disk array adopts RAID5, and RAID5 provides a solution for cost-effective data security. COMPAQ's Alpha server, COMPAQ's RA series disk array, and TruCluster two-machine shareware form the complete database server of COMPAQ. All hard and software components constitute a complete solution for sharing.
C) The data acquisition adopts the industrial control computer and the latest dual-computer switching terminal server, keeping up with the latest technology development. The TCP Server in the dual-server switch terminal server provides one link for each of the IP interfaces as master and standby machines to avoid the time interval for link establishment in dual-machine switchover. Allows the two machines to share a set of terminal servers to provide unified data for the hot spare of the active and standby machines.
D) The main station system man-machine workstation selects CompaqAlphaUnix workstation, high performance, security, reliability, not downtime, to ensure the continuity of the operation;
E) The system's communicator is also the system's WEB server, using a PC server. It can fulfill the double tasks of communication and WEB services, and can use the convenience of dial-up networking and WEB services to achieve remote visual system fault diagnosis and control maintenance, and provide on-demand optimization services for the large screens of re-display terminals and signal systems. .
F) The report workstation adopts the Windows platform, making full use of the popular popular office automation report platform.
G) The system network, data collection equipment and main server are configured in a redundant manner, and there is enough space for upward, downward and horizontal development to ensure the scalability of the system;
2.3 The overall function of the system The monitoring system of the power control center of the Shanghai Light Rail Transit Project designed and provided by Xinhua Control Engineering Co., Ltd. provides the power system operation status and monitoring operation means for the entire power automation system. Therefore, the key subsystem nodes of the system are all configured in a redundant manner, such as data collection and real-time data server, and the historical database server is a redundant configuration. The system has the self-monitoring function of the hardware device and the software task module, which can automatically ensure the normal operation of the basic system through hot standby switching and other mechanisms.
The system has the following functions:
data collection:
Real-time acquisition of analog (telemetry), status (remote), pulse (electricity), and protection information.
Station access number is not limited.
Data processing Real-time processing of data, calculation of various types of statistical values ​​Automatically filter out telemetry disturbances and remote signal jitter Arbitrarily define various expressions and calculate the calculated values ​​in real time Data are stored to the historical database Data communication can be performed with different protocols and at various rates RTU communication can communicate with higher-level dispatching systems and enterprise management systems to communicate with real-time data to dispatching simulation screens. Large-screen system can be configured to display the entire dispatching automation system. Supports multiple communication access methods for digital communication (RS485/RS422, etc.)
High-speed network communication Other data operation Remote control and remote adjustment Manual setting, data locking, setting of planned values, etc. Modification of historical database Events and alarms Handling of various events, including: alarms for alarm events, operation events, system events, etc., alarm points Flashing, automatically launching the scene accident recalling safe double redundant configuration: double front computer, dual server, double workstation, etc. Data is automatically stored to set the graded user password and corresponding operation authority SOE processing system timing accident recall screen operation browse, Jump and other graphic pages Wiring diagram, structure diagram, power flow chart and other real-time data display screen roaming, zoom curve page, report page history data report, historical statistics data, real-time data statistics, etc. Report data Time attribute setting Flexible page editing Online synthesis Editing environment, used to edit the user interface such as drawings, tables, lines, etc. Print page Summon printing, timed printing, event-driven printing Remote maintenance Remote dial-up networking through MODEM WEB maintenance 2.4 Man-machine interface environment The system's man-machine interface is very intuitive and clear . The information graphics, structure diagrams, wiring diagrams, and network monitoring diagrams provided by the system facilitate the monitoring and management of the entire system.
Infographic: Geographical Information Map as Home Screen
3. Conclusion The rail transit control center system is a high-level control system for rail transit automation systems. With the improvement of the overall level of automation, power monitoring systems, fire alarm systems, and equipment monitoring systems can be integrated into an integrated control platform in the coming years to achieve information and resource sharing among the various control center systems. Action, coordination and management. Xinhua will continue to summarize its experience in R&D and engineering, continuously explore and continuously expand to meet the control requirements of rail transit and improve the automation level of China's rail transit.
At present, the SCADA system of the power monitoring system for the Shanghai Rail Transit Line 5 (Xinhuan Light Rail Line) undertaken by Xinhua has been put into operation.
II. Implementation Plan for Power Monitoring System of Handan Light Rail Line 2.1 General Situation of Power Monitoring System Engineering for Shanghai Jiaotong Light Rail Traffic Engineering 莘闵 Light Rail Transit Line Project From Minhang Station of Metro Line 1 South to Tianxing Road of Minhang, total length 17.04 km Except for Xinzhuang Railway Station (about 0.41 km), which are ground lines, all of them are elevated lines. A total of 11 stations, 1 parking lot.
There are 18 substations along the power supply section of the project: traction substation of Xinzhuang station, buck substation of Xinzhuang station, buck substation of Yucheng station, traction and buck-type hybrid substation of Yindu road station, Yanqiao Station traction and buck hybrid substation, Beiqiao station buck substation, Jianchuan road yard traction, hybrid buck substation, Jianchuan road yard buck substation, Jianchuan road station buck substation, Dongchuan road Station traction and buck hybrid substation, Jinping Road Station buck substation, Huaning Road Station traction box substation, Huaning Road Station buck substation, Wenjing Road Station buck substation, Tianxing Road Station buck substation, control center set up a step-down substation, set a 110/35/10KV main transformer station at the Jianchuan Road depot, and a 35/35KV main transformer station at Yindu Road Station.
The SCADA system of the Shanghai Light Rail Transit Power Monitoring System is composed of a central power monitoring system at the control center, a substation integrated automation system at each substation, and a communication channel. The central power monitoring system is applicable to the above 18 The substations and contact network electric isolation switches are monitored in real time to realize the automatic control and management of substations.
2.2 Control Center Power Monitoring System Architecture The configuration of the monitoring system for the power monitoring system center of Shanghai Jiaotong Light Rail Transit Engineering is as follows:
Its main features include:
A) The system network uses CISCO's 10/100M two-speed adaptive switch. This solution configures dual redundant main networks. Each network uses a CISCO3548 switch and supports access to 48 computers. CISCO3500 series switches have up to 10.8G switching capability, providing reliable protection for non-blocking data flow. In addition, this series of switches also have the ability to expand on Gigabit fiber links, leaving room for future high-level network interconnection.
B) The server and disk array of the control center system selected Compaq products and adopted a high-performance, secure and reliable Unix support platform. The database server is composed of two Unix servers plus one disk array. Two servers share the disk array's shared access arbitrate and switch through the Compaq TruCluster shared software. The disk configuration in the configured disk array adopts RAID5, and RAID5 provides a solution for cost-effective data security. COMPAQ's Alpha server, COMPAQ's RA series disk array, and TruCluster two-machine shareware form the complete database server of COMPAQ. All hard and software components constitute a complete solution for sharing.
C) The data acquisition adopts the industrial control computer and the latest dual-computer switching terminal server, keeping up with the latest technology development. The TCP Server in the dual-server switch terminal server provides one link for each of the IP interfaces as master and standby machines to avoid the time interval for link establishment in dual-machine switchover. Allows the two machines to share a set of terminal servers to provide unified data for the hot spare of the active and standby machines.
D) The main station system man-machine workstation selects CompaqAlphaUnix workstation, high performance, security, reliability, not downtime, to ensure the continuity of the operation;
E) The system's communicator is also the system's WEB server, using a PC server. It can fulfill the double tasks of communication and WEB services, and can use the convenience of dial-up networking and WEB services to achieve remote visual system fault diagnosis and control maintenance, and provide on-demand optimization services for the large screens of re-display terminals and signal systems. .
F) The report workstation adopts the Windows platform, making full use of the popular popular office automation report platform.
G) The system network, data collection equipment and main server are configured in a redundant manner, and there is enough space for upward, downward and horizontal development to ensure the scalability of the system;
2.3 The overall function of the system The monitoring system of the power control center of the Shanghai Light Rail Transit Project designed and provided by Xinhua Control Engineering Co., Ltd. provides the power system operation status and monitoring operation means for the entire power automation system. Therefore, the key subsystem nodes of the system are all configured in a redundant manner, such as data collection and real-time data server, and the historical database server is a redundant configuration. The system has the self-monitoring function of the hardware device and the software task module, which can automatically ensure the normal operation of the basic system through hot standby switching and other mechanisms.
The system has the following functions:
data collection:
Real-time acquisition of analog (telemetry), status (remote), pulse (electricity), and protection information.
Station access number is not limited.
Data processing Real-time processing of data, calculation of various types of statistical values ​​Automatically filter out telemetry disturbances and remote signal jitter Arbitrarily define various expressions and calculate the calculated values ​​in real time Data are stored to the historical database Data communication can be performed with different protocols and at various rates RTU communication can communicate with higher-level dispatching systems and enterprise management systems to communicate with real-time data to dispatching simulation screens. Large-screen system can be configured to display the entire dispatching automation system. Supports multiple communication access methods for digital communication (RS485/RS422, etc.)
High-speed network communication Other data operation Remote control and remote adjustment Manual setting, data locking, setting of planned values, etc. Modification of historical database Events and alarms Handling of various events, including: alarms for alarm events, operation events, system events, etc., alarm points Flashing, automatically launching the scene accident recalling safe double redundant configuration: double front computer, dual server, double workstation, etc. Data is automatically stored to set the graded user password and corresponding operation authority SOE processing system timing accident recall screen operation browse, Jump and other graphic pages Wiring diagram, structure diagram, power flow chart and other real-time data display screen roaming, zoom curve page, report page history data report, historical statistics data, real-time data statistics, etc. Report data Time attribute setting Flexible page editing Online synthesis Editing environment, used to edit the user interface such as drawings, tables, lines, etc. Print page Summon printing, timed printing, event-driven printing Remote maintenance Remote dial-up networking through MODEM WEB maintenance 2.4 Man-machine interface environment The system's man-machine interface is very intuitive and clear . The information graphics, structure diagrams, wiring diagrams, and network monitoring diagrams provided by the system facilitate the monitoring and management of the entire system.
Infographic: Geographical Information Map as Home Screen
3. Conclusion The rail transit control center system is a high-level control system for rail transit automation systems. With the improvement of the overall level of automation, power monitoring systems, fire alarm systems, and equipment monitoring systems can be integrated into an integrated control platform in the coming years to achieve information and resource sharing among the various control center systems. Action, coordination and management. Xinhua will continue to summarize its experience in R&D and engineering, continuously explore and continuously expand to meet the control requirements of rail transit and improve the automation level of China's rail transit.
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