Application of Ankerui Energy Consumption Management System in Jinxiu Jiangshan Foreign Language School in Zhejiang Province

Application of Ankerui Energy Consumption Management System in Jinxiu Jiangshan Foreign Language School in Zhejiang Province

An Kerui Dai Jinhua

Jiangsu Ankerui Electric Appliance Manufacturing Co., Ltd.

Abstract: With the improvement of social living standards and the prosperity and development of the economy, people's demand for energy is gradually increasing, and the resulting energy crisis is becoming more and more serious. How to understand, analyze and control the energy consumption of a school in real time has become an imminent problem that needs to be solved. The traditional energy consumption intelligence is carried out on a monthly/quarterly/yearly cycle, but the school is carried out every day and every hour, and energy consumption also occurs every day and every hour. This paper introduces the project of Jinxiu Jiangshan Foreign Language School in Zhejiang Province. Ankerui intelligent power meter is used to collect various electrical parameters at the power distribution site. The system adopts the method of on-site networking. Power monitoring and management of each distribution circuit.

1 Introduction

With the deepening of energy-saving work, the scientific management methods of energy utilization are becoming more and more diverse. The energy consumption management system can monitor the detailed use of various energy sources in the school in real time, find the weak points of energy consumption for the school, promote the improvement of the school management level and the reduction of operating costs, and provide an intuitive and scientific basis for energy conservation and consumption reduction. As an efficient management tool and an emerging management method, energy management systems have been applied in large public buildings, schools, hospitals and other fields. The Acrel-5000 energy management system of Jinxiu Jiangshan Foreign Language School in Zhejiang Province reduces energy consumption and increases profits through energy collection and management.

2 Design basis

GB-T 15587-2008 "Guidelines for Energy Management of Industrial Enterprises"

"Technical Guidelines for Evaluating Reasonable Electricity Use in Enterprises GB"

"General Rules for the Preparation of Enterprise Energy Conservation Planning"

"General Principles of Enterprise Energy Audit Technology-GB"

GBT23331-2009 "Energy Management System Requirements"

GB-50052-2009 "Code for Design of Power Supply and Distribution System"

u National and industry standards for energy consumption metering devices

DL/T 645-1997 Multi-function energy meter communication protocol

DL/T 645-2007 Multi-function energy meter communication protocol

CJ/T 188-2004 Technical conditions for data transmission of household metering instruments

GB/T 19582-2008 Industrial Automation Network Specification Based on Modbus Protocol

3 Project Overview

Zhejiang Jinxiu Jiangshan Foreign Language School mainly monitors the power distribution room and floor multi-function instrument, a total of 26 DTSF1352.

4 System Architecture

Acrel-5000 energy consumption analysis and management system according to the actual situation of the school, the overall network structure adopts shielded twisted pair cable to directly connect to the background energy consumption gateway and then upload the data to the monitoring host through the TCP/IP network.

The system mainly adopts a layered distributed computer network structure, as shown in the system structure diagram: the station control management layer, the network communication layer and the field device layer. Among them, the school instruments are distributed in the power distribution room and the floor. All the instruments are laid to the doorman through 485 shielded twisted pair cables, and then sent to the system host through the energy consumption gateway to complete the collection and management of instrument data.

5 System software modules

u Main interface of comprehensive energy consumption

The main page displays the architectural picture of the building, basic information of the building, a pie chart of electricity consumption by item in the current month and the consumption of various energy sources. According to the selected building, load the building image, you can select the time to view the energy consumption of the building, and automatically refresh after selecting the building or time. The default is the current day.

u Branch energy consumption

The system can count the daily, weekly, monthly, quarterly and yearly energy consumption of each branch within a certain period of time. The system can check the energy consumption trend of each branch, query according to the existing date or self-defined time, and can display the total energy consumption of the branch in the form of a graph.

u Sub-item energy consumption statistics

The system can perform statistics and display of energy consumption by item. Among them, the daily sub-item energy consumption year-on-year analysis chart shows the energy consumption histogram of the current day and yesterday for different sub-items (the blue bar represents today, and the green bar represents yesterday); the energy pie chart shows the energy consumption of each sub-item in the past 31 days. The stacked graph shows the energy consumption trend of each sub-item in the past 31 days; the sub-item energy consumption ranking graph shows the top 10 branches corresponding to the energy consumption value of the selected sub-item.

u Itemized energy consumption report

The system can count the daily, weekly, monthly, quarterly and yearly energy consumption of each sub-item within a certain period of time. You can view the energy consumption trend of each branch in the sub-item, query according to the existing date or custom time, and export the statistical data to Excel.

u Year-on-year analysis of energy consumption

The system can analyze the energy consumption of major energy-consuming equipment with the value of the same period last year and the value of the previous month on a year-on-year basis to check the energy-saving effect, perform energy-saving performance assessment according to the analysis results, and revise the energy-saving target. Statistics on the monthly energy consumption of each branch in the current year and the energy consumption in the same period last year;

u Energy consumption data check

The system can count the energy difference between each circuit and the lower branch within a certain period of time, and it will be displayed prominently (red area) when it exceeds a certain percentage to ensure the integrity and accuracy of the measurement system.

u Configuration options

Configure the basic information of the building according to the relevant technical specifications, such as: building function, building area, air-conditioning area, building address, etc., among which the building area and other information will be used to analyze the energy consumption per unit area;

Configure the type, model, manufacturer and other basic information of the instrument used in the project, and add the monitoring parameter information that the instrument can provide. The configuration here affects the functions of energy consumption statistics, energy consumption statistics by time period, and parameter query functions;

Configure all the measuring instruments used in the project, and save the address, transformation ratio, corresponding collector, code, name of the monitoring loop and other information of the measuring instruments;

The meter, proportion, calculation method and other information involved in the configuration of sub-item energy consumption statistics can be flexibly configured according to the project situation. The configuration information here will affect the functions in the energy consumption analysis module of each category of energy consumption and sub-item. ;

Configure the corresponding measuring instruments, calculation methods, proportions and departmental energy consumption plans for each department's energy consumption. After completing this configuration, the departmental energy consumption analysis function module will be enabled;

Configure the metering instrument, calculation method, and proportion corresponding to an energy-consuming area in the building. After completing this configuration, the regional energy consumption analysis function module will be enabled.

6 Outlook

According to the analysis of the school's energy consumption operation effect, a typical energy consumption analysis model is established for unified analysis.

u Establish a building energy consumption measurement system: According to the power consumption structure of the school, monitor to the level of the power distribution room, and can accurately count the incoming and outgoing circuits. about).

u Store the collected data and form a visual chart: After the system collects data and stores it in the database, the system can satisfy report query and export, and the system can display energy consumption trends in the form of bar charts, giving customers a better experience.

u Diagnose high energy consumption points: Managers can collect data through the system, and conduct year-on-year and chain comparison analysis of each loop, and find out high energy consumption points through one-stage analysis.

u Improve management and operation mode through energy consumption analysis: The school conducts correct management operations for high energy consumption points, such as: informing each group to turn off lights and machines during off-duty hours, and at the same time included in performance appraisal; Larger circuits can be staggered to reduce excessive load at the same time; through energy consumption data, the company's operating costs can be reduced and profits can be increased.

7 Conclusion

The energy consumption system of Jinxiu Jiangshan Foreign Language School in Zhejiang Province is designed for school energy consumption under the background of increasingly tense energy problems and rising energy prices. After the construction of the energy consumption management system, it can not only reduce the workload of the staff and improve the work efficiency, but also the intuitive statistical analysis results can effectively help the school administrator to make a correct analysis according to the energy consumption situation, and make a correct analysis for the future development. Making correct decisions is of great significance to promoting and driving energy conservation and achieving energy conservation and emission reduction goals.

references:

[1]. Technical requirements of the Ministry of Housing and Urban-Rural Development

[2].DGJ08-2068-2012 "Shanghai Public Building Energy Monitoring System Engineering Technical Specification"