Grid 2.0 Era

Smart grid is the intelligence of power grid, also known as "Grid 2.0". It is built on the basis of integrated, high-speed two-way communication network. Through the application of advanced sensing and measurement technology, advanced equipment technology, advanced control methods and advanced decision support system technology, it realizes the goals of reliable, safe, economical, efficient, environmentally friendly and safe use of power grid. Its main features include self-healing, motivating and protecting users, resisting attacks, providing power quality that meets user needs, allowing access to various forms of power generation, launching electricity market and optimizing and efficient operation of assets.

Compared with the existing power grid, the smart grid embodies the remarkable characteristics of highly integrated power flow, information flow and business flow. Its advancement and advantages are mainly manifested in:

(1) It has a strong power grid infrastructure and technical support system that can resist all kinds of external interference and attacks, and can adapt to the access of large-scale clean energy and renewable energy. The robustness of the power grid has been consolidated and improved.

(2) The organic integration of information technology, sensor technology, automatic control technology and power grid infrastructure can obtain panoramic information of the power grid and timely discover and foresee possible faults. When a fault occurs, the power grid can quickly isolate the fault and achieve self-recovery, thus avoiding large-scale power outages.

(3) The widespread application of technologies such as flexible AC/DC transmission, grid-plant coordination, intelligent dispatching, power storage, and distribution automation has made grid operation and control more flexible and economical, and can adapt to the access of a large number of distributed power sources, microgrids, and electric vehicle charging and discharging facilities.

(4) The comprehensive use of communications, information and modern management technologies will greatly improve the efficiency of power equipment, reduce power loss, and make power grid operation more economical and efficient.

(5) Realize high-level integration, sharing and utilization of real-time and non-real-time information, display a comprehensive, complete and detailed grid operation status map for operation management, and provide corresponding auxiliary decision support, control implementation plan and response plan.

(6) Establish a two-way interactive service model, so that users can understand the power supply capacity, power quality, electricity price and power outage information in real time and arrange the use of electrical appliances reasonably; power companies can obtain users' detailed electricity consumption information and provide them with more value-added services.