Application of Electric Energy Metering Automation System
In addition to hardware equipment, the application of electric energy metering automation system in electric power management also takes telemetry system, management system, and centralized copying system as key supporting forces, which play an important role and value. The key to the further optimization of the metering automation system, the following will be researched on this strategy:
telemetry system
The telemetry system is an important part of the electric energy metering automation system. It mainly plays two roles in the operation process of the whole system. The first is to provide a reliable platform for the comprehensive application of the electricity data of the electric energy metering automation system to ensure that all The information and data of various aspects can be effectively collected and classified, which plays a supporting role for the stable operation of each part. The second is to be able to realize the effective use of database and network technology, promote the further optimization of high-tech systems, and then better meet people's functional needs for electric energy metering automation systems, making the overall operation smoother. Therefore, technicians should strengthen the optimization and construction of the telemetry system, and use this as a basis to realize effective interaction with information, so that the integrity of system information transmission can be guaranteed, and managers can make correct decisions based on the actual transmission of system information. Decision-making, improve management level, and provide reliable support for the stable operation of each link of the electric energy metering automation system, so that the electric energy metering automation system can better serve people and create greater benign influence.
management system
The accuracy and completeness of customer information is the prerequisite for the effective application of the electric energy metering automation system in electricity management. That is to say, if there are problems in the collection of customer information, it will lead to errors in management strategies and make electric energy metering automation The subsequent operation of the system will be greatly negatively affected. Therefore, the relevant units strengthen the optimization of the management system to provide a reliable guarantee for the accuracy and comprehensiveness of customer information collection. First, the customer information in the electric energy metering automation system is mainly obtained through on-site collection and terminal computer collection, and is mixed with data communication network and meter-related data transmission. In this regard, the relevant units should follow the principle that the whole is determined by the parts, start with the part structure, implement targeted analysis and research work, and design the management system based on the actual situation, so that each part of the system can present an independent operation. state, to avoid the generation of contradictory relationship between subsystems, and to maintain the effective operation state of the management system. Second, in order to ensure the effective control of the data of each subsystem and the grasp of the overall system operation situation, relevant technical personnel need to strengthen the research on the connectivity between each subsystem, so that the management system can show mutual independence and environmental protection. The interlocking state enables multiple links such as information collection, meter reading, analysis, and integration to show an orderly state of promotion, reducing the impact of things that occur during operation on the whole, and realizing the power consumption of the electric energy metering automation system. Effectiveness of management applications.
Collection system
Manpower is the main supporting force in the traditional centralized copying of electric energy metering. Although it can meet most of the needs, mistakes often occur due to the limited ability of manpower, which brings great challenges to the advancement of electric energy metering. Obstacles, unable to present high-quality management effects. The effective combination of automation technology and electric energy metering work can effectively alleviate the current problems, make the centralized copying system realize automatic operation, gradually replace manpower, and create greater value. After analysis, the following aspects will be studied on the automatic construction and management of the centralized copying system: first, relevant staff should use computer technology and communication technology to integrate and transmit the data collected by the electric energy meter, and through the electric energy metering automation system. The centralized copying system uploaded to the terminal to prepare for the advancement of the follow-up work. Secondly, relevant technical personnel need to optimize the automatic operation mode of the centralized copying system to provide more convenience for the meter reading work, realize the effective transformation from manpower to automation, and effectively improve the efficiency and quality of the centralized copying work, so that relevant Staff only need to operate on the terminal to achieve data collection that breaks through time and space constraints, bringing more reliable support for the improvement of people's quality of life. *Finally, in order to ensure that the centralized copying work can be smoothly and effectively promoted, the relevant units need to strengthen the optimization of the monitoring work and set up corresponding monitoring devices so that problems such as line loss can be discovered in a timely manner and can be obtained within an effective time. Solve it, avoid its negative impact on the centralized copying work, and highlight the value of the application of the electric energy metering automation system in electricity management.
Application of Electric Energy Metering Automation System in Power Consumption Management
Equipment operation management
The application of the electric energy metering automation system in the electricity consumption management has the function of integrated detection. Relevant staff can use the electric energy metering automation system to effectively detect the operation of the targeted equipment and realize the effective collection of the actual situation of the customer's electricity consumption. All the information in the circuit system can be accurately transmitted to the terminal computer, so that the power unit can formulate maintenance and repair measures according to the actual operation of the equipment, regularly maintain the equipment, prolong the operating life of the equipment, and realize cost reduction. Effective control to achieve management effectiveness. In addition, the electric energy metering automation system also plays a very important role in the analysis link after data collection. The power unit can use its data analysis and processing functions to directly reflect the operation of multiple devices, effectively shortening the information processing time. and calculation time, so that technicians can directly find the corresponding fault data according to the data situation, and take targeted measures to repair and replace them, so as to ensure the stability of customers' power consumption and the effective collection of power consumption information. The value of management work. Secondly, in the process of economic estimation, power units can also use automation technology to provide support for the smooth development of estimation work, realize the maximum application of human resources and material resources, and avoid the continuous emergence of equipment energy waste. Finally, during the operation of electric energy metering equipment, technicians can effectively supervise and supervise various tasks through the application of automation systems, so that the speed of data statistics and analysis can be effectively improved, and in a short period of time Timely solution to related equipment line problems optimization plan, laying a solid foundation for the effective maintenance of system equipment.
Peak stagger management
In the investigation and analysis of the power supply data of the power supply unit, it is found that the high and low peaks of power supply have certain regularity, which has a great relationship with people's work and living habits. For example, the power consumption during breakfast and lunch will reach a Peak, residents' electricity consumption during the period of going to and from work will have a low peak. During several peak power consumption time periods every day, the load pressure of the power system is relatively high, and the wear and tear on power equipment is relatively large, which greatly increases the probability of power equipment failures, which will not only cause power The problem of excessive operating costs of the system cannot meet people's requirements for power consumption stability and safety, and there are great potential safety hazards. Therefore, the power supply unit pays more attention to peak shift management, strengthens the application of electric energy metering automation system in power consumption management, collects peak power consumption information through intelligent management methods, and makes regular judgments, thereby making the intelligent system Under the calculation of the computer, it is possible to make preparations before the arrival of the peak power consumption time period, implement targeted peak shifting treatment measures, reduce the occurrence of excessive equipment damage caused by the operating burden of the power system, and reduce the cost of the power supply unit Put in pressure, and at the same time make people's electricity consumption process smoother, realize effective protection of safety, and avoid the occurrence of safety accidents and large-scale power outages. In addition, in the trough stage of electricity demand, the power supply unit can properly reduce the pressure of system operation, realize effective saving of resources, and highlight the value of the application of electric energy metering automation system in electricity management.
Anti-stealing and real-time detection
The continuous emergence of electricity theft will greatly impact the stable operation of my country's economic system, which does not meet the requirements of social stability and harmonious development. Electricity theft plan, and real-time detection of the specific implementation of the plan, in order to ensure the fairness of people's use of electricity and effectively safeguard the interests of the country. In the anti-stealing and real-time detection management, the power consumption unit can rely on the electric energy metering automation system, so that the implementation of relevant strategies and programs can be reliably supported. First, whether the user steals electricity. The electric energy metering automation system can realize the effective collection of data and the intuitive presentation of data changes. The power supply unit can use the electric energy metering automation system to monitor and collect the electricity consumption of the user within a year or even a longer period of time, and organize it into an intuitive Change the chart, so that the abnormal data can be discovered in time, and further investigation and analysis can be obtained, so that the power supply unit can get the result in a faster time to judge whether the user steals electricity. Once the electricity stealing behavior is found , the power supply unit can also use this data as a basis to calculate the amount of power it steals, providing support for subsequent accountability and reducing the loss of the power supply unit. Second, in a relatively long period of time, users whose total electricity consumption is zero account for a relatively large proportion of electricity theft, so the power supply unit should strengthen the monitoring of this part of users, and combine the final monitoring data with The data detected by the electric energy metering automation system is compared and analyzed, and then the result of whether the user has stolen electricity is quickly obtained, and the amount of stolen electricity is scientifically calculated, and the responsibility is pursued according to the actual amount, so as to effectively suppress the electricity theft behavior , and bring a warning effect, reduce the probability of stealing electricity, and realize the effective maintenance of collective interests. Third, reducing the scope of screening can effectively improve the efficiency of anti-stealing detection. In this regard, the staff should strengthen the use of automation systems, and carry out anti-stealing detection work layer by layer according to the level, so as to realize anti-stealing detection The rationality of the implementation of the work also achieves the purpose of reducing the loss of the power supply unit as soon as possible, creating a new benign influence and creating a healthy social atmosphere.
Acrel-3000WEB power management solution
overview
The user end consumes 80% of the electric energy of the entire grid, and the intelligent power consumption management of the user end is of great significance to the user's reliability, safety, and power saving. Build a smart electricity service system, promote user-side smart meters, smart power management terminals and other equipment power management solutions, and realize two-way benign interaction between the power grid and users. The research content urgently needed to be solved on the client side mainly includes: advanced meters, smart buildings, smart appliances, value-added services, customer power consumption management systems, demand side management and other topics.
The Acrel-3000WEB power management solution subdivides and counts the power consumption at the user end, and displays the power consumption of each sub-item to managers or decision-makers with intuitive data and charts, so as to find out the high Energy consumption points or unreasonable energy consumption habits can effectively save electricity and provide accurate data support for users to further energy-saving transformation or equipment upgrades.
Application place
(1) Office buildings (commercial offices, large public buildings, etc.);
(2) Commercial buildings (shopping malls, financial institution buildings, etc.);
(3) Tourist buildings (hotels, entertainment venues, etc.);
(4) Science, education, culture and health buildings (culture, education, scientific research, medical and health, sports buildings, etc.);
(5) Communication buildings (posts and telecommunications, communications, radio, television, data centers, etc.);
(6) Transportation buildings (airports, stations, wharf buildings, etc.).
system structure
System functions
1) Real-time monitoring
The system has a friendly man-machine interface, visually displays the operating status of the distribution line in the form of a distribution diagram, monitors the voltage, current, power, power factor, electric energy and other electrical parameters of each circuit in real time, and dynamically monitors the circuit breakers, Closing and opening states of isolating switch, ground knife, etc., as well as signals related to faults and alarms.
2) Electric energy statistical report
The system supports the integrity of the measurement system with rich reports. The system has the function of timing meter reading and summary statistics. Users can freely query the power consumption of each power distribution node in any time period since the system was in normal operation, that is, the statistical analysis report of the power consumption of the incoming line of the node and the power consumption of each branch circuit. This function makes the electricity consumption visible and transparent, and can be analyzed and traced when the electricity consumption error is too large, so as to maintain the correctness of the metering system.
3) Detailed electrical parameter query
In the primary power distribution diagram, when the mouse moves near each circuit, the mouse pointer changes into a hand shape, and the detailed electrical parameters of the circuit can be viewed by clicking the mouse, including three-phase current, three-phase voltage, three-phase total active power, total Reactive power, total power factor, forward active energy, and 24-hour phase current trend curve and 24-hour voltage trend curve can be viewed.
4) Run the report
The system has the storage and management functions of real-time power parameters and historical power parameters. All real-time collected data and sequential event records can be saved to the database. In the query interface, you can customize the parameters that need to be queried, specify the time, or choose to query and update Record data, etc., and display them in a report form. Users can customize and run daily and monthly reports according to their needs, and support exporting Excel format files, and can also export PDF format files according to user requirements.
5) Transformer operation monitoring
The system conducts online real-time monitoring of the operating status of the main incoming line, main transformer, and important load outgoing line of the power distribution system, and uses curves to display operating trends such as current, transformer operating temperature, active power demand, active power, apparent power, and transformer load rate. Analyze the load rate and loss of the transformer, so that the operation and maintenance personnel can grasp the operation level and power demand in time, and ensure the safety and reliability of power supply.
6) Real-time alarm
The system has a real-time alarm function, and the system can monitor the remote signal displacement, protection action, accident tripping, voltage, current, power, power factor over-limit and other events such as distribution circuit breaker, isolating switch, grounding knife opening and closing action, etc. Real-time monitoring and alarming according to the event level. When the system alarms, the real-time alarm window will pop up automatically, and a sound or voice reminder will be issued.
7) Historical event query
The system can store and manage remote signal displacement, protection actions, accident trips, and event records such as voltage, current, power, and power factor exceeding limits, which is convenient for users to trace the history of system events and alarms, query statistics, and analyze accidents.
8) Power quality monitoring
The system can continuously monitor the power quality within the entire power distribution system. Operation and maintenance personnel can grasp the voltage, current harmonic distortion rate and harmonic content of incoming lines, transformers and important circuits through harmonic analysis bar graphs and reports. , voltage unbalance, etc., take corresponding measures in time to reduce harmonic loss, reduce abnormalities and accidents caused by harmonics (this function needs to be equipped with a power meter with harmonic monitoring function, and can be deleted if not needed.
9) Remote control operation
The system supports the remote operation of opening and closing of circuit breakers, isolating switches, grounding switches, etc. The system has strict password protection and operation authority management functions. For each remote operation, the system automatically generates an operation record, which includes the operator, operation time, operation type, etc. To realize this function, the circuit breaker itself needs the support of hardware equipment such as electric operating mechanism and protection, measurement and control device with remote control function.
10) User rights management
In order to ensure the safe and stable operation of the system, the system has set up the user rights management function. Unauthorized operations (such as modification of distribution circuit names, etc.) can be prevented through user rights management. The login names, passwords and operation rights of users at different levels can be defined to provide reliable security for system operation, maintenance and management.
11) Communication status diagram
The system supports real-time monitoring of the communication status of each device connected to the system, and can completely display the network structure of the entire system; it can diagnose the communication status of the device online, and automatically display the faulty device or component and its fault location on the interface when a network abnormality occurs. In this way, it is convenient for the operation and maintenance personnel to grasp the communication status of each equipment on site in real time, maintain abnormal equipment in time, and ensure the stable operation of the system.
12) Video surveillance
The video surveillance shows the current real-time picture (live video broadcast). Select a certain substation to view the video information in the substation.
13) User reports
The user report page is mainly used to automatically summarize the operation data of the selected substation for one month, and conduct statistical analysis on transformer load, power consumption of distribution circuit, power factor, alarm events, etc.
14) APP support
The power operation and maintenance mobile phone supports five modules of "monitoring system", "equipment file", "to-do list", "inspection record" and "defect record", and supports primary map, demand, power consumption, video, curve, temperature Humidity, year-on-year, month-on-month, power quality, various event alarm query, equipment file query, pending event processing, inspection record query, etc.
System hardware configuration list
conclusion
To sum up, the automation system of electric energy metering is more complex and includes more intelligent equipment and technologies, such as transformers, information processors, etc., which greatly meet the related work requirements of electric energy metering. , has created a greater benign influence, therefore, the application of the electric energy metering automation system in electricity management should be given great attention, and continuous technological innovation and optimization will create greater economic value and serve our country The continuous and stable development of today's society is escorted.