Application of electric energy management system in Shanghai leiyunshang Pharmaceutical Co., Ltd

Ankerui zhangqifeng Jiangsu ankerui Electric Appliance Manufacturing Co., Ltd Abstract: with the continuous deepening of enterprise reform, the modernization level of power consumption management is required to be higher and higher, which can quickly and accurately obtain the power data of each power consumption link, power consumption analysis, load management, operation condition monitoring, automatic settlement of power charges, and a powerful means to improve the economic benefits of enterprises In order to improve the monitoring system, in recent years, the research work of technical personnel on the monitoring system has gradually increased, and began to use new technology to reform the existing monitoring system, which provides great help for the current departments to optimize the construction of the monitoring system This paper introduces the application of electric energy management system in enterprise power management through the application of substation and floor in the project of Shanghai leiyunshang Pharmaceutical Co., Ltd Key words: power management system; monitoring system; centralized meter reading system; power management system; 0 Introduction distribution automation is a comprehensive information management system integrating computer technology, data transmission technology, control technology, modern equipment and management Its purpose is to improve power supply reliability, power quality, provide services to users, reduce operating costs, and reduce the labor intensity of operators Enterprise power management system is the product of responding to the call of national energy conservation and consumption reduction and refined energy management It aims to improve the efficiency of terminal power consumption and change the way of power consumption While meeting the same power consumption function, it can realize the early warning of power consumption and equipment danger, reduce power consumption and power demand, achieve the safe use of electricity, save resources and protect the environment, and realize the "safe use of electricity, economic use" Electricity, orderly electricity, intelligent electricity " This paper introduces the application of electric energy management system in industrial enterprises through the construction of electric energy management system of (Kunshan) Perlman mechanical and Electrical Co., Ltd 1 project overview and the arrival of the construction target information age require more and more uninterrupted power supply equipment, which puts forward higher requirements for power supply Power failure or power rationing will lead to production reduction, while sudden power failure will harm the important equipment of the factory The backward manual distribution mode is not suitable for the modern manufacturing industry Only by realizing distribution automation can Zui improve the quality of power supply to a large extent and meet the needs of people's daily life and production The realization of distribution automation can improve the reliability of power supply The automation of distribution station can reduce the number of failures, reduce the scope of accidents, shorten the time of accidents, and provide the basis for power supply restoration, rapid analysis, diagnosis and report of accident causes Now, Shanghai leiyunshang Pharmaceutical Co., Ltd is upgrading the low-voltage distribution in response to the national energy conservation and emission reduction policy In order to ensure the reliable power supply and distribution of the facility, the power management system is configured to monitor and save the data in real time for later management 2 In the design of power management system, we should fully consider the actual needs of customers, the actual structure of power system, the actual load capacity of power system and other factors, and then choose the reasonable monitoring equipment, which is not only conducive to reducing the cost of system operation, but also conducive to the realization of system functions The power management system of the project can realize the real-time monitoring of the low-voltage distribution circuit of the substation, which is conducive to the power management On the other hand, the power management system can not only accurately show the power consumption of the circuit, but also has the functions of network communication, which can be combined with the computer, serial server and other equipment to timely display the operation status of each distribution circuit in the station When the load of the power system in the station exceeds the standard, the power monitoring system can quickly alarm and give voice prompt In addition, the power management system can also generate statistical information such as reports, curves, etc., which is convenient for the relevant personnel to analyze the power consumption status of each part of the station, so as to make the power consumption activities in the station safer, thus ensuring the life safety of the personnel in the station and improving the work efficiency of the staff in the station 2.1 the system structure is based on the distribution of power distribution of Shanghai leiyunshang Pharmaceutical Co., Ltd the construction of online monitoring system adopts hierarchical and distributed structure, including station control management layer, network communication layer and field equipment layer The network structure of the system is as shown in the figure: the direct window for the station control management personnel to conduct human-computer interaction with the computer, to calculate, analyze and process all kinds of data and information collected on the site, and to reflect the operation status of the site by means of graphics, digital display, sound, etc., which is the upper part of the Zui system It is mainly composed of system software and necessary hardware equipment, such as industrial computer, printer, UPS power supply, etc The device used in the communication layer is a serial server This layer is the bridge of data information exchange, which is responsible for the collection, classification and transmission of the data returned by the field equipment, while conveying various control commands of the upper computer to the field equipment The field equipment layer is mainly connected with various types of ankerui dtsd1352-c, pz80l-e4 / C instruments, sb-2100 flow meters, which are used for electric parameter acquisition and measurement in the network It is also a necessary basic element for the construction of the power distribution system A positive electric energy meter shall be equipped on site to monitor the three-phase current, three-phase voltage, frequency, power, four quadrant electric energy and other electrical parameters of the low-voltage circuit, and to monitor the opening and closing status of each circuit breaker 2.2 the network system in the power management system of network design can transmit the data in time and transfer the operation instructions quickly, which is the basis of realizing the functions of the power monitoring system Connect each device on site with the bus, and then connect each bus to the serial server to realize the transmission with the host 2.3 the software function design system of the monitoring system is designed according to the actual needs of customers, and realizes the interface display of the primary main wiring diagram and the pie chart of the proportion of electric energy in the plant area; remote measurement of electric parameters and alarm of electric parameters exceeding the limit; event record; abnormal monitoring of system operation; fault alarm and operation record; report query and printing; System load real-time, historical curve, user authority management and other main functions 2.3.1 the power distribution primary diagram display power management system has a friendly human-computer interface, which can intuitively display the distribution of power distribution lines in the form of power distribution primary trunk diagram and the data collection frequency is 1s Meanwhile, the real-time collected electric parameter information of each circuit and the opening and closing status of power distribution return circuit switch are displayed in the system interface in real time As shown in the figure below: 2.3.2 electric energy management system for flow meter operation status monitoring provides flow meter operation parameters, such as temperature, frequency, pressure, instantaneous flow and cumulative flow, and can display whether the system operates normally in real time according to customer capacity demand, and display it in the system interface in real time As shown in the figure below: 2.3.3 the data report statistics electric energy management system reflects the integrity of the measurement system with rich data reports The system has the function of time reading summary and statistics of each circuit Users can freely query the power consumption of each distribution node in any time period since the normal operation of the system, that is, the statistical analysis report of the incoming power consumption of this node and the power consumption of each branch circuit This function makes the power consumption visible and transparent, and can be traced when the power consumption error is too large, so as to maintain the correctness of the metering system 2.3.4 the current curve query energy management system has designed the load trend curve for the total incoming circuit and the outgoing line of the important load of the distribution system It is convenient for distribution maintenance personnel to grasp the proportion of power demand and power supply system load in time, ensure the reliability of power supply, and provide guarantee for the energy use rights and interests of users With this function, we can also analyze the growth trend of energy demand, timely adjust the demand declaration, and reduce the extra payment caused by excessive demand deviation Secondly, the data recording function of the power management system also includes the recording of fault information, that is, the real-time current, real-time voltage and other data when the fault occurs are recorded and stored The power management system can monitor the power distribution situation in real time, whether there is short circuit or overload, etc through the setting of voltage, current and power by the management personnel, which is convenient for the staff to solve As shown in the figure below: 2.3.5 alarm information setting and query data recording function of electric energy management system, it requires enough memory space in the system, and then record and store data information for a long time and a large amount Secondly, the data recording function of the power management system also includes the recording of fault information, that is, the real-time current, real-time voltage and other data when the fault occurs are recorded and stored The power management system can monitor the power distribution situation in real time, whether there is short circuit or overload, etc through the setting of voltage, current and power by the management personnel, which is convenient for the staff to solve See the following figure for details: 2.3.6 user authority management electric energy management system for the safe and stable operation of the project system, user authority management can prevent unauthorized operation (such as modification of distribution circuit name) It can define the login name, password and operation authority of different levels of users, and provide reliable security for system operation, maintenance and management 3 The significance of the application of power monitoring system in the design of power supply and distribution to sum up, in view of the above problems, and according to the requirements of customers, the original power distribution system is transformed The transformed power management system can not only realize the remote monitoring and centralized management of each distribution circuit, but also realize the classification of power statistics according to each monitoring equipment By setting up the power management system, the staff can make correct judgment and input operation in a short time Under the condition of knowing the state of power grid, the staff can deal with the fault timely and accurately Besides, he has more important social benefits Reducing the working time of human in the strong electric field is of great significance to the health of employees, which can avoid many occupational diseases and accidents of electric shock Reference [1] principle and Application guide of electric power digital instrument, Ren Zhicheng, Zhou Zhong, China Electric Power Press [2] Application of electric energy management system in power supply and distribution design, Gao Shihong, science and technology wind [3] DL / t448-2000 technical management regulation of electric energy metering device [S] [4] Communication technology in electric power centralized meter reading system [J] Electric power system communication, Xu Pingping, Qiu Yuchun