This paper mainly introduces the data room of Zhejiang Taizhou Luqiao Broadcasting and Television Center using Ankerui intelligent power meter and Acrel-3000 power management system to monitor the data room power distribution system. The meter uploads the data to the background through the bus-type networking mode. Networking. LED lighting system is widely used in airports, storage yards, squares, turntables, stadiums and other places. Led Ceiling Light,High Power Spot Lamp,Dust Proof Led Light Henan Idui Import and Export Trade Co., Ltd , https://www.acesunraylight.com
Yang Junjun An Kerui Electric Co., Ltd. Shanghai Jiading
0 Project Overview
Taizhou Broadcasting and Television Station Luqiao Broadcasting and Television Center Building is located in Xuweng Village, Lubei Street, covering a total area of ​​5,863 square meters and a total design area of ​​1,3461.3 square meters. The above-ground construction area is 9997.5 square meters (including 8345.3 square meters for technical business and 1652.2 square meters for office space), and the underground garage area is 3463.8 square meters. The design scope of this project is the low-voltage power distribution system of the data room of the broadcasting and TV center, including the equipment input and distribution ATS cabinet, the equipment room power distribution cabinet, the equipment room UPS phase I power distribution cabinet, the equipment room UPS phase 2 power distribution cabinet, and the equipment column power distribution cabinet. 1. Equipment power distribution cabinet 2, equipment power distribution cabinet 3, equipment power distribution cabinet 4.
1 User requirements
The system design requirements are as follows:
1.1 Real-time display: The initial interface adopts the system diagram. The interface can display the three-phase current of each loop in real time, and display the on-off state of the loop in real time. The detailed parameters of the loop can be viewed through the connection.
1.2 Alarms and events:
1 Telemetry real-time alarm function: 22 ACR120EL/K and 2 AMC16-3E3/K voltage, current (or power), frequency, power factor over-limit alarm; limit value can be set only by the user management user.
2 Telemetry history alarm function: It can query the telemetry history alarm record.
3 remote real-time alarm function: 22 ACR120EL/K and 2 AMC16-3E3/K and 2 ARTU-K16 circuit breakers open and close alarm.
4 remote letter history alarm function: can query the remote alarm history alarm record.
5 communication and system failure alarm: system communication failure must have alarm and record function.
6 system history operation record: including the login record and operation record of each user.
1.3 Trend analysis: current (or power) daily and weekly curves of 24 ACR120EL/K and 2 AMC16-3E3/K 24 circuits are provided; the graph can be manually selected within the time range according to requirements. View and print.
1.4 Report Management: Power Parameter Meter Reading: It can query the active power value, reactive power value, power consumption (kWh), power factor, current per phase and voltage value of each loop in historical time.
1.5 Power Management: The comprehensive energy statistics report function includes the power consumption of the monitoring loops of 24 low-voltage power meters in the system. The power consumption can be queried in different time periods according to the demand.
1.6 Privilege Control Function: System User and Operation Permission: Set the administrator and operator 2 users and set different permissions. The administrator can set the alarm limit and close the program; the operator only checks the print permission.
1.7 HMI, 3 touch screens on site to achieve the following functions:
1 On-site real-time monitoring function, real-time display of voltage, current and power of each loop.
2 telemetry and remote alarm function.
3 Data forwarding function, forward the instrument data collected in the field to the background power management system.
1.8 SMS alarm: notify the user of the telemetry or remote signaling alarm message.
1.9 WEB release: Remote users can access the power management system through a LAN browser.
2 Design Principles Reference Standards
2.1 Design principles
1) Openness: This system will involve equipment technology of different manufacturers and the expansion requirements of the system. In the product technology selection of this project, avoid using proprietary technology, so that the system hardware and software platform is fully open. Sex.
2) Advancement: The software and hardware platform construction of the system, the design and development of the application system, and the product technology adopted by the system maintenance management all take into account the current development trend of the technology, and adopt relatively advanced and relatively mature market product technologies to meet the future of the system. Development needs.
3) High performance: The system design should be comprehensively analyzed from the perspectives of server processing capability, network bandwidth transmission capability, software system efficiency, etc., rationally design the structure, and make the system have sufficient processing capacity to adapt to a large amount of data processing and user access requirements. System service quality.
4) Security: The system attaches great importance to security issues. From the operating system layer, network layer, and application layer, there are corresponding measures to address the requirements of transmission security, system security and information security.
5) Reliability: The system should consider the system structure, network structure, technical measures, equipment selection and other aspects to ensure that there is no single fault node in the system to achieve 7X24 uninterrupted service.
6) Scalability: In this system, all network, server, storage, and application software are designed to follow the principle of extensibility to achieve expansion as demand evolves. The system adopts a modular structure, which has good compatibility and expandability, so that devices and systems of different manufacturers can be integrated into the same platform, and the system can be easily expanded according to user requirements in the future.
2.2 Reference Standard
1) ISO/IEC11801 "International Integrated Wiring Standards"
2) GB/50198 "Technical Specifications for Monitoring System Engineering"
3) GB50052-2009 "Design Specification for Power Supply and Distribution System"
4) GB50054-2011 "Low-voltage power distribution design specification"
5) IEC 61587 "Electrical Equipment Mechanical Structure Series"
6) DL/T448-2000 "Technical Management Regulations for Electric Energy Metering Devices"
7) DL/T 698.1-2009 "Part 1: General"
8) DL/T 698.2-2010 "Part 2: Technical Specifications for Master Stations"
9) DL/T 698.31-2010 "Section 3.1: Technical Specifications for Power Information Collection Terminals - General Requirements"
10) DL/T 698.35-2010 "Part 3-5: Technical specification for power information collection terminal - Particular requirements for low-voltage centralized meter reading terminal"
11) DL/T 698.41-2010 "Part 4-1: Communication Protocol - Communication between the primary station and the power information collection terminal"
12) DL/T 698.42-2010 "Part 4-2: Communication Protocol - Concentrator Downlink Communication Protocol"
13) DL/T 698.41-2010 "Part 4-1: Communication Protocol - Communication between the primary station and the power information collection terminal"
14) DL/T 698.42-2010 "Part 4-2: Communication Protocol - Concentrator Downlink Communication Protocol"
3 solutions
The power management system of the computer room of Taizhou Luqiao Radio and Television Center is designed in a layered and distributed structure, namely the field equipment layer, network communication layer and station control management layer:
3.1 Field device layer
On-site equipment layer instrument selection is based on the principle of meeting the requirements of the user's power management system, and combined with the company's many years of experience in distribution automation system engineering. On-site main loop monitoring adopts multi-function network power meter ACR120EL/K and multi-loop monitoring device AMC16-3E3/K, which can carry out loop electric parameter measurement and switch quantity monitoring; the head line outlet circuit does not need to be measured, only need to carry out switch quantity monitoring , configure ARTU-16K.
3.2 Network communication layer
Communication medium: The system mainly adopts shielded twisted pair cable, and the instrument is connected by RS485 bus. In the data center, the centralized display device touch screen TPC1062K is added, and the equipment room power distribution cabinet, the equipment room UPS phase I power distribution cabinet, and the equipment room UPS phase 2 power distribution cabinet are each configured as an on-site HMI. The HMI receives the meter data and simultaneously uploads the data to the back-end power management system via Ethernet.
3.3 Station management
The station management layer is for the management of the distribution network, which is directly facing the user. This layer is also the uppermost part of the system, mainly by the power management system software and necessary hardware equipment such as computers, printers, UPS, etc. The software part has a good human-computer interaction interface, and reads various kinds of data information collected by the front-end machine through the data transmission protocol, and automatically performs calculation and processing, and reflects the operation state of the scene by means of graphics, digital display, sound, etc., and Accept the operation instructions of the management personnel, send and detect the execution status of the operation in real time to ensure the normal operation of the power supply unit; the energy measurement management function is designed to conform to the user's report format, and the data in the report is strictly measured according to various standards. Users only need to find the print, which greatly facilitates the operation and improves the work efficiency. The system structure topology is as follows: .jpg)
4 system function
4.1 touch screen function
1) main interface .jpg)
2) Real-time display interface, real-time display of loop electrical parameters and switch status. .jpg)
3) The communication interface displays the communication status of the instrument and the touch screen software. 
4) Alarm record inquiry 
4.2 Power Management System Functions
1) Power distribution monitoring: The distribution of distribution lines is visually displayed in the form of a power distribution primary trunk diagram. At the same time, the electrical parameters of each loop collected in real time and the switching status of the distribution loop switches are displayed. 
2) Energy report: Acrylic Acrel-3000 power management system reflects the integrity of the measurement system with rich data reports. The system has the function of counting and counting the periodic meter reading of each loop. The user can freely query the power consumption of each power distribution node in any time period since the normal operation of the system, that is, the statistical analysis of the power consumption of the incoming line of the node and the power consumption of each branch circuit. Report. This function makes the electricity use visible and transparent, and can be traced when the power consumption error is too large to maintain the correctness of the measurement system. 
3) Load curve: The Acre-3000 power management system designed the load trend curve for the total incoming line of the distribution system (or the exit of the important load). It is convenient for distribution and maintenance personnel to keep abreast of the demand of power consumption and the load of power supply system to ensure the reliability of power supply and provide guarantee for the energy use rights of user units. 
4) Electrical parameter report: Acrylic Accel-3000 power management system has the function of storing and managing real-time power parameters and historical power parameters. All real-time data collected and sequence event records can be saved to the real-time database. In the monitoring screen, you can customize the parameters that need to be queried, the time period of the query, or select the number of records that have been updated recently, and display them in a report mode. This feature makes it easy for users to conduct accident tracking queries. 
5) Real-time alarm of remote signal: The system can monitor and alarm the opening and closing action of the distribution circuit breaker. When the system alarms, the information voice prompt can be made, and the alarm screen is automatically popped up.
6) Telemetry real-time alarm: The system has telemetry alarm configuration function. The alarm types include voltage limit, current limit, frequency limit, power factor limit, and circuit breaker opening and closing. When the system alarms, the information voice prompt can be made, and the alarm screen is automatically popped up.
7) Remote Sensing and Telemetry Historical Alarm Query: Acrylic Acrel-3000 Power Management System can store remote signaling and telemetry alarm data, which is convenient for users to trace the system alarm events.
8) User rights management: The system sets the user rights management function to ensure the safe and stable operation of the system. Unauthorized operations (such as power distribution loop name modification, etc.) can be prevented by user rights management. You can define login names, passwords, and operation rights for users of different levels to provide reliable security for system operation and maintenance management.
9) B/S-based network application: The system is equipped with a powerful WEB page publishing function, so that users can view real-time data, monitoring images, historical data, browsing effects and other real-time browsers based on Windows platform-based IE or other mainstream browsers. The system screen seen on the Acrel-3000 server side is identical.
10) SMS alarm: The system supports SMS alarm function. The system remote alarm and telemetry real-time alarm information can be sent to the designated system administrator's mobile phone through the SMS alarm module, enabling users to know the on-site power distribution situation and eliminate possible occurrences. Power distribution hazards.
5 Conclusion
With the rapid development of the economy, energy shortages and environmental degradation have been closely watched by the world. Energy is an important foundation for the development of the national economy. In order to respond to the call of the country and take the road of sustainable development, energy conservation and consumption reduction are the primary tasks. Among them, the consumption of electric energy in all energy sources is relatively large, and the unified management of electric energy is particularly important. Only accurate and reliable measurement of electrical energy can save energy in a true sense.
Acrel-3000 series power management system is a set of products with strong professionalism, high automation, easy to use, high performance and high reliability, which is closely developed by our company to closely meet the needs of power system users and follow the standard specifications of power systems. A power management system for low voltage distribution systems. Through telemetry and remote control, the load can be rationally adjusted to achieve optimal operation, effectively save energy, and provide a data basis for reasonable management of power consumption.
references
[1]. Ren Zhicheng Zhou Zhong. Principles and Application Guidelines of Power Electrical Measurement Digital Instrumentation [M]. Beijing. China Electric Power Press. 2007. 4
[2]. Zhou Zhong. Application of power meter in electric energy metering of large public buildings [J]. Modern Building Electric 2010. 6
About the author: Yang Junjun, female, undergraduate. Position: Now working for Ankerui Electric Co., Ltd., contact number, mobile phone, QQ
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Application of Acrel-3000 Power Management System in the Computer Room of Luqiao Radio and TV Center in Taizhou, Zhejiang