State Grid Tianjin Electric Power Research and Development Intelligent Measurement System Based on New Smart Meter

[ Instrument Network Instrument Development ] On May 7, the staff of the State Grid Tianjin Electric Power Company replaced a new generation of smart meters with intelligent load identification function for the residents of a community. Through extensive field transformation, it provided customers with wisdom and convenience. Electricity service. Through research and development and application of new smart meters, the company has built an intelligent measurement system with comprehensive state awareness, efficient information processing and convenient and flexible access.

Different from traditional user load monitoring and analysis, it is necessary to install dedicated terminals and acquisition sensors. The electric load identification intelligent electric energy meter does not affect the user's life, does not change the existing power collection structure, and does not change the appearance of the electric energy meter. It does not leave the household to achieve accurate identification of residential electrical equipment components and energy consumption, and has the advantages of simple operation and maintenance, low investment cost and strong information security.

On May 7, the staff of State Grid Tianjin Electric Power Company replaced a new generation of smart meters with intelligent load identification function for residents of a residential area. The new generation of smart meters has the functions of supporting measurement error diagnosis, non-intrusive measurement advanced analysis, and active reporting of “triple” functions. It adopts modular design and plug-and-play installation, and can collect household electric load types and various types in real time. The electrical consumption of electricity consumption information, through refined power consumption data monitoring and energy consumption early warning analysis, to provide energy-saving guidance and other services for all types of customers, to achieve the average customer energy savings of more than 10%.

At the same time, smart meters provide powerful technical support for active repair of power failures. State Grid Tianjin Power Innovation explores a new model of smart meter big data driven power distribution operation and maintenance, applying 'smart meter-low voltage branch switch-stage area' low-voltage ubiquitous power Internet of Things system, which can realize accurate judgment of power failure.

In addition, a new generation of smart meters with intelligent load identification function analyzes the load and voltage information of the user's home incoming line while completing the conventional energy metering. After multi-dimensional load feature extraction, load type identification and matching, intelligent identification of the type of electrical appliances, start-stop time and time-sharing power consumption in the user's home.

In addition to Tianjin, Nanjing City of Jiangsu has already run a test of the residential user's electricity load identification smart energy meter and interacts with the user through mobile app, questionnaire, etc., verifying the electrical energy information recognized by the energy meter and the user's real electricity. Whether the situation is consistent, providing data support for improving load identification accuracy and carrying out low-power electrical identification.

The new smart meter intelligent measurement system utilizes the advantages of power lines, communication networks, business systems and massive customer power data, and integrates the concepts of ubiquitous power Internet of Things and cloud computing to comprehensively apply non-intrusive load identification. Error online monitoring, power failure reporting, power customer personalized energy efficiency assessment, energy saving, power detection and other technologies, integrated analysis and data mining of customer electricity information, guide users to adjust and optimize power consumption, the future will have greater Expansion capacity.

(Source: State Grid News, China Energy News, Global Meter)