Over the past year, experienced fanatical pursuit, but also questioned the concept of experienced, smart grid stir expected from the progressive implementation of the major equipment suppliers to the domestic R & D platform and product line. Proved construction of the smart grid in line with China's national conditions.
China's power grid,glue stick there are some prominent current issues: rapid adjustment power is not enough to meet the requirements of large-scale access network; line inspection testing, diagnosis and assessment of decision support tools and models of technology is not perfect; network structure is relatively weak; equipped with network lack of reliable, economical, practical way to communicate, lack of capacity to the public user support ... ...
Solve these problems, need to rely on the smart grid of the building. Smart grid to ensure grid security and stability in the premise, so that more new energy access; the same time, relying on flexible AC transmission technology to further enhance the safe operation of the grid level; can optimize demand-side management, effectively improving energy efficiency. In short, to "information flow" and "Power Flow" effective integration and parallel development: advanced communication and network technology will be an important part of power system, they will be smart devices and optimizing algorithms to help function of the system to achieve power.
For example,glue gun network managers can use sensors, meters, digital controls, and analysis tools, automatic monitoring network, optimizing network performance, prevent power outages, faster restoration of electricity, consumers of electricity use management can also be refined to each networked device, thereby enhancing the overall efficiency of the grid. As another example, compared with the traditional power grid, smart grid more quickly to man-made or naturally occurring disturbances made to identify and respond to natural disasters, external computer attacks, destruction and under different circumstances to ensure that personal, equipment and network security . In addition, the smart grid to optimize resources, improve equipment utilization of transmission capacity and, with the help of advanced sensing and automation technology, scheduling between different regions in a timely manner to balance the power supply. In addition, the smart grid has strong compatibility, support for renewable energy access and large-scale applications.
Smart grid construction in China should not copy the mature European and American practices, but according to national conditions, pay attention to priorities.
Different grid pattern to determine the focus of our smart grid development in different areas of Europe and America should be. United States, Europe and other developed countries has been basically stable power grid pattern, load growth is small, smart grid research and application areas of focus on the distribution and consumption; the rapid development of China's power grid pattern will, the load increased rapidly, transmission grid construction also In the rapid development, therefore, in the smart grid research and applications, should focus on the safe operation of power transmission network, and reliable economic, sexual and other requirements to carry out intelligent self-healing technology, at this stage should focus on the transmission network of intelligent field .
The different distribution of renewable energy, but also makes the system access mode is different. European gas pipeline network developed to facilitate wind energy resources, to develop a distributed generation, smart grid as the main means of renewable energy access; China's wind energy, solar energy resources are concentrated, mainly in remote areas of the grid, therefore, can not full use of foreign development models, and should develop high-capacity, long-distance transmission of renewable energy, considering the fire, water and wind, amidst such as transmission system with the same time, to strengthen energy storage technology research and application.
Smart grid construction, the key is to make grid with the "brain", along with a strong nerve center, where the ability to interact with the most critical information. This requires building a coherent framework for electronic transmission protocols and standards.
Building a smart grid process: first, communication technology, IT, and measurement, sensor technology, which is the prerequisite and basis for the smart grid; then the control equipment and control software. Therefore, the first in the capital markets should benefit associated with the smart grid communications, IT industry, the next will be a high-power power electronics industry benefits.
Associated with the smart grid communications, IT technology including: software development to support smart grid, smart grid information collection system, intelligent application integration systems, and integrated display systems and related software to benefit the company, including East China, the Great Wall Development, Bureau Lu electronics ; and high-power power electronics technology-related companies are the beneficiaries of XJ Electric, National Power shares of NARI and Hidenobu.