According to IEK, under the continuous fermentation of international energy and climate issues, countries are vigorously promoting the construction of smart grids. It is hoped that through real-time control and demand-side management, the optimal allocation and operation of power resources will be promoted to achieve energy-saving and carbon-reduction goals. In order to achieve this goal, we must rely on the collection and analysis of power information. Therefore, the Advanced Metering Infrastructure (AMI) with two-way communication function can make the power system automation and information into the home/building, and it is regarded as intelligent. The backbone of the grid.
Under the policy guidance, the international AMI market is sprouting from Europe, the United States and other regions, and has begun to spread around the world. Currently, Japan, South Korea, China, Australia and New Zealand have related deployment or pilot projects. .
The market for electric meters is huge. If the smart meters are fully replaced, the market size will be considerable. Since the beginning of 2009, the number of smart meter installations has seen double-digit growth. The market research organization ABI estimates that the installation of smart meters in 2006 will reach 76 million, and it is expected to reach 212 million in 2015. In the next five years, Europe and North America will remain the main markets, and Asia will be the region with the greatest growth potential driven by the Chinese mainland.
Introduction to AMI System Architecture
AMI refers to a system that uses various communication methods to transmit client meter data back to the control center, and realizes various functions of remote data reading, providing, setting, and controlling through two-way communication. In addition to improving the shortcomings of traditional manual meter reading, such as uneconomical, inaccurate and non-real-time, AMI has many functions, such as supporting various tariff rates, providing users with energy usage information, guiding spontaneous energy conservation, and supporting transmission signals for users. Load control, in response to automatic price changes, support for fault detection and remote on/off management, improved load forecasting, user power quality management, etc.
(1) AMI brings many benefits to the country, power industry and users
Compared with traditional mechanical electric meters, AMI has the advantage of two-way communication function. Therefore, AMI can connect various information such as electricity, power generation and even power storage system to each other, and assist the development of the expressway toward the power system to achieve hop-on-go. Features. Therefore, the main advantages of AMI are to achieve the goal of energy saving and carbon reduction, improve the quality of power supply and improve economic efficiency. Therefore, it can provide various benefits in the three aspects of the country, the electricity industry and the electricity consumers, as shown in Figure 1.
Figure AMI benefits for the country, power industry and users
In the country, AMI can promote demand side management and renewable energy integration, thus helping countries achieve energy conservation and carbon reduction policy goals. For the electric industry, AMI can provide load control communication function, quickly measure and diagnose power quality, realize self-healing function of the power grid, improve power supply quality, and realize the matching with time price mechanism. The sharp peaks are smooth to slow down the pressure on the new power plant; at the same time, it is easier to obtain the user's electricity consumption data, so more innovative services can be provided. Finally, in the user's face, the AMI can be used with the display to make the information transparent, and the electrician can grasp more information and carry out energy management; and strengthen the flexible interaction between the user and the power system, and the electric household can simultaneously act as a generator and a power consumer. The role (Prosumer = Producer + consumer) helps to improve the electricity market.
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