Smart energy meter is the foundation of the smart grid, critical assets, it is to obtain user electric energy source. At present, the State Grid Co. electricity customers in up to 410 million residential customers, 88.9% of the total number of customers, as China's urban residents living standards continue to improve, residential users load showed rapid growth, the growing complexity of the behavior of electricity now some smart meter and collection system has been unable to meet the growing business of all kinds of data requirements in the new situation.
Reporters recently learned from the China Innovation Alliance intelligent measurement technology industry summit, a new generation of smart meter has been successfully developed, starting next year to install large-scale tender. So, compared with the old table, a new generation of smart meter technology highlights what? What is the role in the construction of electric power network was to boost the pan? In this regard, this reporter interviewed the China EPRI measuring and testing technology research and development director Zhu Enguo.
Pan support in the power of Things perception layer construction
Different application scenarios can be configured to function block
China Energy News: Why develop a new generation of smart energy meters?
Zhu Enguo: As the end of the smart grid marketing business, electricity consumption information and energy distribution, the energy meter has a wide coverage. Currently, 490 million units have been installed. It is used for fault repair, power trading, customer service, distribution network operation, power quality monitoring and other businesses The basic data source has a first-mover advantage in supporting the ubiquitous construction of the power IoT perception layer. In order to further expand the functions of smart energy meters and meet the international standard requirements of IR46 "Active Energy Meters" issued by the International Legal System of Measurement (OIML), combined with the experience and application requirements of energy meters in the field, we have developed a system that adapts to customers' ubiquitous electricity A new generation of smart energy meters for networking.
China Energy News: What are the technical highlights of the new generation of smart energy meters?
Zhu Enguo: The new generation of smart energy meters meets the basic functional requirements of the IR46 standard. Compared with traditional smart energy meters, it adopts a multi-core modular design concept, including multiple chips for measurement, management, clock, storage, etc .; The modules are constructed by plugging and unplugging, and different modules can be configured on the base table according to different application scenarios. For example, the dot matrix LCD can be used to personalize the content fonts and customize the display of two-dimensional codes and vector graphics, which is convenient for operation and maintenance personnel and users to obtain information by scanning codes to meet the development needs of human-computer interaction in the ubiquitous electric power Internet of Things. In addition, the new generation of smart energy meters also has the latest application achievements such as diversified and efficient communication, software upgradeability, distributed large-capacity storage, load monitoring and analysis.
It can be said that on the premise of ensuring that the basic measurement function is stable, accurate, and reliable, the new generation of smart energy meters has created a flexible, safe, and scalable legal measuring instrument, which has resolved future changes in electricity price policies, grid business expansion, and changes in user needs. Functional meter replacement problems caused by uncertain factors; energy routing can be achieved, and new smart devices on the user side can be connected to realize device sensing, data collection and control; can be used for ordered charging, smart home, multi-meter collection Various types of sensor access scenarios can guide users to use electricity in a scientific and orderly manner, save electricity, promote friendly interaction between residential users and the power grid, and meet the requirements of the ubiquitous electric power Internet of Things construction and the increasingly diverse service needs of the people.
Non-intrusive power load sensing technology
Refinement of power usage information
China Energy News: diversification of energy consumption, which put forward higher requirements for the marketing and measurement field of power?
Zhu Enguo: With the development of emerging information and data application technologies, energy consumption has emphasized timeliness and diversification, and more emphasis has been placed on clean, low-carbon and safe and efficient. At present, a number of energy consumption data analysis technologies have been applied in the power consumption field. Among them, non-intrusive power load intelligent sensing technology provides strong support for the intelligentization of power marketing measurement data applications. This technology is a method that does not enter the interior of residential users, analyzes the total power load of the user through intelligent sensing methods, realizes the fine decomposition of the power consumption information of the user, and obtains the energy consumption distribution and proportion of the user.
In actual operation, the data verification of non-intrusive load sensing technology is an important basis for the evaluation of technical effects. The accuracy of load data is a key indicator related to the reliability of data application, and this detection and verification process has always been blank in the technical field. . In order to ensure the reliable application of load sensing technology in the construction of ubiquitous electric power Internet of Things, scientific research personnel of the Institute of Metrology of the Chinese Academy of Electrical Sciences fully investigated domestic and foreign testing data and research progress, and developed a non-intrusive load sensing technology detection system.
Supporting Data Derivative Services
Improve user safety and smart power consumption
China Energy News: What are the specific applications of non-intrusive load intelligent sensing function?
Zhu Enguo: The non-intrusive load intelligent sensing function is an important functional module for the next generation of smart energy meter applications. It is an important carrier for energy metering equipment to implement the ubiquitous electricity IoT technology. It is also an effective way to expand the dimension of energy metering data. The company has taken the lead in the large-scale application of non-intrusive load sensing technology in the field of energy measurement. In the future, the electricity consumption settlement data based on total statistics can be effectively decomposed to obtain the user's electricity load components to support marketing operations and grid operation and maintenance needs, so that grid companies, electricity users, and society-related fields can all obtain data-driven Relying on quality and efficiency.
Specifically, non-intrusive load sensing technology can provide users with electrical-level energy data visualization services, so that users can not only obtain "mobile bill" electricity bills, but also obtain energy consumption priorities, standby power consumption, energy efficiency rankings, etc. Diagnostic opinions greatly improve the electricity consumption experience of residents. At the same time, based on the above service scenarios, electric power companies can provide users with data-derived services such as power safety diagnostics and electrical appliance status assessments to improve users' safety and smart power usage. |
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