Arkori Qingqing
Jiangsu Ankerui Electric Appliance Manufacturing Co., Ltd., Jiangyin, Jiangsu 214405, China
Abstract: Users have increased their awareness of their own energy use, and have promoted the popularization of consumer-side power distribution systems in commercial, industrial, and residential areas. The system designs and installs smart meters for the main energy-consuming nodes on the user side, and then monitors the working status, power consumption, water consumption, and gas consumption data collection of each energy-using circuit in real time through the back-end system. Through the real-time monitoring of energy use and related power parameters, improving the safety, reliability and maintenance efficiency of energy use, and reducing the labor cost of maintenance, intelligent management of power distribution system monitoring has been realized. At the same time, through the use of real-time monitoring of energy, data collection and storage, the operating status of the power supply and distribution system is clearly defined, providing data basis for users to save power maintenance costs. The ACREL-3000 power management system used in Shanghai Xichuan Seals Co., Ltd. project is now taken as an example. A brief introduction to intelligent use of the user side.
Keywords: Shanghai Xichuan Seals Co., Ltd. Power Management Unmanned Intelligent Distribution System Distribution Automation
0 Preface
In the industrial production distribution system, the original manual meter reading, data collection can not already meet the current production management system. The intelligent and data-based distribution system has become the basic requirement for intelligent and data-based production enterprises. Through the intelligent system, real-time monitoring of user-side energy consumption, data accumulation, and analysis provide managers with accurate production energy data.
ACREL-3000 power management system is precisely the user-side power management system developed for the above trends. This system measures, stores, and analyzes the energy of the inlet and outlet loops of substations of Shanghai Xichuan Seals Co., Ltd., displays the energy distribution and operating status of the entire distribution system in the form of tables or graphs, and quantifies the operating status of the system. , Provides data basis for managers' daily management and maintenance.
This article takes Shanghai Xichuan Sealed Parts Co., Ltd. as an example to briefly introduce the application of ACREL-3000 power management system in Shanghai Xichuan Sealing Co., Ltd. distribution system.
1 Project introduction
Shanghai Xichuan Seals Co., Ltd. obtained a permit from the Chinese government in December 2002, and established a factory in the 40,000 square meter base in Songjiang, Shanghai, with a total investment of 21 million US dollars. It is the highest market share in the automotive seal market in Japan. Rubber Industries Co., Ltd. 100% invested in the latest subsidiary. The company's main business is the design, development, production, and sales of automotive windows, doors, and body sealants. Following the parent company's business philosophy, Shanghai Xichuan's business objectives are targeted at supplying to China's famous Japanese automobile manufacturers. Its major customers include Toyota, Honda, Nissan, Mazda, etc. The quality and price of the company's products are obtained. The customer's high evaluation.
In this project, an energy management system is mainly designed for the important distribution circuit in the production workshop. Through the construction of the system, energy consumption measurement of important circuits in the production plant is completed. For the nature of the project, the use of ACREL-3000 energy management system to complete the customer's energy consumption measurement requirements.
ACREL-3000 energy management system collects, stores, and processes data from smart metering devices and exports them in the form of graphs and reports to provide management personnel with specific power consumption details.
2 user needs
After a preliminary site investigation and communication with the owner, the basic requirements were analyzed and divided into the following areas:
1) Remote meter reading of major distribution circuits within each production plant;
2) The energy collection of each incoming circuit and the energy metering;
3) Real-time data display of important loops, loop name customization;
4) The working status of each smart meter is displayed in real time;
5) According to the actual distribution structure, according to the regional distribution diagram;
6) Important power parameters, current and voltage curves of important circuits are displayed;
7) User privilege level management, different levels of privilege to achieve different levels of management operations;
3 design plan
3.1 Reference Standard
The design of the system meets the following manufacturing and test standards:
JGJ/T 16-92 Civil Building Electrical Design Code
GB/J63-90 "Design Specification for Electrical Measuring Instrument Devices of Electrical Installations"
GB/T13730 General Technical Conditions for Data Acquisition and Monitoring System of Regional Power Grid
GB2887 "Technical Requirements for Computing Station Sites"
GB/50198-94 "Technical Specifications for Monitoring System Engineering"
DL/T 698.31-2010 "Section 3.1: Technical specifications for energy information collection terminals - General requirements"
DL/T 698.35-2010 Part 3-5: Technical specifications of energy information collection terminals - Particular requirements for low-voltage centralized meter reading terminals
DL/T 698.41-2010 Part 4-1: Communication Protocol - Communication between Master and Power Information Collection Terminals
DL/T 698.42-2010 Part 4-2: Communication Protocol - Concentrator Downlink Communication Protocol
DL/T/814-2013 "Functional Specifications for Distribution Automation Systems"
3.2 System Architecture Design
In view of the architectural scale and nature of Shanghai Xichuan Seals Co., Ltd., and the follow-up project's joint development nature, the system department of Ankerui Electric Co., Ltd. based on the user's needs and experience in the same nature of the project, the building The construction of the intelligent power distribution system is designed as follows: Shanghai Xichuan Seals Co., Ltd. has installed intelligent power meters at all monitoring points, and all adopt the standard Modbus-RTU protocol. The on-site installation of smart meters is hand-in-hand connected through shielded twisted pairs. The data bus is laid directly to the duty station where the host computer is located. The data bus transfers data to the system host through a protocol conversion isolator. System diagram 1 shows.
figure 1
4 system function
PC software uses ACREL-3000 power management system, through the software configuration of equipment, database variables configuration, interface design, etc., completed in the host computer software monitoring and power management functions.
4.1 Features
ACREL-3000 power management system uses a Chinese-language interface, the operation is simple and convenient; running stable and reliable features. Click the corresponding shortcut button to enter the corresponding system function module; the system has a system diagram display, simulation diagram display and network structure diagram display; the system has a friendly man-machine interface, intuitive display data, user-friendly access.
4.2 Software Features:
4.2.1 Communication Diagram
The communication diagram is a topological diagram and shows whether the communication between the system and the instrument is normal. The change of the color of the interface module reflects the operating status of each monitoring point of the entire system. The interface is shown in Figure 2.
Figure 2 Communication
4.2.2 Monitoring Details
The detailed monitoring diagram reflects the name of the distribution circuit of the entire system, the corresponding distribution system, and the main electrical parameters of the circuit. Through the display of real-time data, the operating data of each monitoring loop of this project is directly reflected, which helps the administrator to understand the running status of the system in real time. The interface is shown in Figure 3.
Figure 3 Monitoring details
4.2.3 Parameter reading
The parameter report reflects the operation data of the monitoring loop of the project at a certain time in the past, and the loop status is reflected by the real-time parameter data at the current or past time. The main data includes: three-phase voltage, three-phase current, electric energy, active power, reactive power, power compensation factor, frequency. The interface is shown in Figure 4.
Figure 4 Parameter reading
4.2.4 Energy Report
The energy report is the management of the electricity consumption in the form of a report. The report can realize functions such as monthly meter reading, daily meter reading and hour meter reading at any time during system operation, and can be exported or printed in the form of Excel. The interface is shown in Figure 5.
Figure 5 Energy Report
5 Conclusion
The intelligent, transparent and high-efficiency requirements of the industrial building distribution system prompted the market to provide corresponding solutions. At present, smart meters are installed in the power supply and distribution systems of industrial buildings, that is, the input and output nodes of substations, and computer network integration technologies are used to provide customers with remote meter reading, data storage, and data processing services to help customers grasp buildings in real time. The energy use situation of the building realizes intelligent management of building energy use.
Shanghai Xichuan Seals Co., Ltd. power management system realizes the real-time collection, storage, display, and export of power distribution system data. Intelligent instruments are installed at important nodes of the distribution system, and the real-time data monitoring system of the distribution system is thus implemented. While designing, installing and debugging the system, it also combs and verifies the parameters of the distribution system in detail. Through checking the various power parameters on the site, the operating status of the distribution system can be understood. The system analyzes and processes the collected data, displays real-time power usage status of the owner's distribution circuits, and generates various energy reports. The installation of the system facilitates the collection of various power parameters. Through the analysis and research of the data, the management formulates a corresponding adjustment plan for the production process. The system is safe, reliable and stable. It also solves the problem of unclear power consumption of each distribution circuit for end users of the distribution system, providing a reliable basis for the maintenance of the power system in the later period and the development of reasonable property services.
references
[1]. Ren Chengcheng, Zhou Zhong. Principles and Application Guide for Digital Meters for Electric Power Measurement [M]. Beijing. China Electric Power Press, 2007. 4
[2]. Zhou Zhong. Application of Power Meters in the Measurement of Large-scale Commercial Energy Discharges [J]. Modern Building Electric 2010. 6
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