"Secondly, I believe that the development of smart grids is also an inevitable choice for social and economic development.

1. In order to achieve the development, transmission and consumption of clean energy, the power grid must improve its flexibility and compatibility.

Second, in order to resist increasingly frequent natural disasters and external interference, the power grid must rely on intelligent means to continuously improve its security defense and self-healing capabilities.

3. In order to reduce operating costs and promote energy conservation and emission reduction, the operation of the power grid must be more economical and efficient, and at the same time, the electrical equipment must be intelligently controlled to reduce electricity consumption as much as possible. The rapid development of distributed generation, energy storage technology and electric vehicles has changed the traditional mode of power supply and consumption, and promoted the continuous integration of power flow, information flow and business flow to meet the increasingly diverse user needs.

Finally, I think that in the future, green energy-saving awareness will become the mainstream of the world, after all, the earth's resources are limited, that is, driven by green energy-saving awareness, smart grid will inevitably become a key area of competition for the development of countries around the world.

A smart grid is a power network that is self-healing, actively engaging consumers, able to recover from attacks and natural disasters in a timely manner, accommodating all power generation and energy storage, embracing new products, services and markets, optimizing asset utilization and operational efficiency, and providing power quality for the digital economy.

The smart grid is built on the basis of an integrated, high-speed two-way communication network, which aims to use advanced sensing and measurement technology, advanced equipment technology, advanced control methods, and advanced decision support system technology to achieve reliable, safe, economical, efficient, environmentally friendly and safe efficient operation of the power grid.

Its development is a gradual evolution, a radical change, the product of the synergy of existing and new technologies, and a wider range of things beyond networks and smart meters.

The construction of UHV power grid as the backbone of the grid, the coordinated development of power grids at all levels. A strong smart grid characterized by informatization, automation and interaction has comprehensively improved the security, economy, adaptability and interaction of the power grid. Strength is the foundation, intelligence is the key.

I think it's important to build a smart grid. Its importance to our country is mainly reflected in the following aspects:

First, it has a strong ability to optimize the allocation of resources. After the completion of China's smart grid, it will realize cross-regional, long-distance, large-capacity, low-loss and high-efficiency transmission of large hydropower, large coal power, large nuclear power and large-scale renewable energy, and the inter-regional power exchange capacity will be significantly improved.

Second, it has a higher level of safe and stable operation. The safety and stability of the power grid and the reliability of power supply will be greatly improved, and the defense lines at all levels of the power grid will be closely coordinated with each other, with the ability to resist sudden events and serious faults, which can effectively avoid the occurrence of large-scale chain faults and significantly improve the reliability of power supply. Reduce power outage losses.

Third, adapt to and promote the development of clean energy. The power grid will have control mechanisms such as power prediction and dynamic modeling of wind turbines, low voltage ride-through and active power control, and rapid adjustment of conventional units, combined with the promotion and application of large-capacity energy storage technology, the operation and control ability of clean energy grid connection will be significantly improved, making clean energy a more economical, efficient and reliable energy supply mode.

Fourth, to achieve highly intelligent power grid dispatching. A horizontally integrated and vertically integrated smart grid dispatching technical support system has been built to realize online intelligent analysis, early warning and decision-making of the power grid, as well as the efficient regulation and control of various new power generation and transmission technology and equipment, and the lean control of AC and DC hybrid power grids.

Fifth, realize the efficient utilization and life-cycle management of power grid assets. It can realize the overall management of power grid facilities in the whole life cycle. Through smart grid dispatching and demand-side management. The utilization hours of power grid assets have been greatly improved, and the utilization efficiency of power grid assets has been significantly improved.

Sixth, realize the convenient interaction between power users and the power grid. An intelligent electricity interactive platform will be formed to improve demand-side management. Provide users with high-quality power services. At the same time, the power grid can make comprehensive use of distributed power sources, smart energy meters, and time-of-use electricity price policies to effectively balance the load of the power grid. Reduce the difference between load peak and valley, and reduce the cost of power grid and power supply construction.

Seventh. Realize the informatization and lean management of power grid. A communication network system covering all aspects of the power grid will be formed to realize the functions of power grid data management, comprehensive supervision of information operation and maintenance, power grid spatial information services, and integration of production and dispatching applications. Fully realize the informatization and lean management of power grids.

Eighth, we need to give full play to the value-added service potential of power grid infrastructure. While providing electricity, it also serves the national 'triple play' strategy, provides users with a variety of integrated services, provides platform support for informatization and interaction of water supply, heat, gas and other industries, expands and improves the scope and ability of value-added services for power grid infrastructure, and vigorously promotes the development of smart cities.

Ninth, promote the rapid development of power grid-related industries. The power industry is a capital-intensive and technology-intensive industry, with the characteristics of large investment and long industrial chain. The construction of smart grid is conducive to promoting the technological upgrading of equipment manufacturing and communication information industries, and laying the foundation for China to occupy the commanding heights of the world's power equipment manufacturing field.

I still say that green energy-saving awareness will become the mainstream of the world, so the smart grid also has a role in promoting the world's economic and social development, it is mainly for responding to global climate change, and promoting the sustainable development of the world economy and society has an important role. It is mainly manifested in:

First, promote the development and utilization of clean energy, reduce greenhouse gas emissions, and promote the development of a low-carbon economy.

Second, optimize the energy structure, realize the complementarity of various energy forms, and ensure the safety and stability of energy supply.

Third, it is necessary to effectively improve the efficiency of energy transmission and use, and enhance the safety, reliability and flexibility of power grid operation.

Fourth, we should promote technological innovation in related fields, promote technological upgrading in equipment manufacturing and information and communication industries, expand employment, and promote sustainable social and economic development.

Fifth, realize the two-way interaction between the power grid and users, innovate the traditional mode of power services, provide users with more high-quality and convenient services, and improve people's quality of life.

It is no exaggeration to say that the interactive grid is not only the basic model of the next generation of global power grids, but also the core of China's power grid modernization.

In fact, the essence of the interactive grid is energy substitution, compatible utilization, and interactive economy.

Technically speaking, the interactive power grid should be the integration of the most advanced communications, IT, energy, new materials, sensors and other industries, as well as the synthesis of distribution network technology, network technology, communication technology, sensor technology, power electronics technology, and energy storage technology, which has a direct comprehensive effect on promoting the new technological revolution.

As a result, smart grids are reliable, self-healing, economical, compatible, integrated, and secure.

In my opinion, the essence of the interactive power grid theory is to promote the innovation and upgrading of the power grid system, the most important asset of the industrial revolution, on a large scale with the generative standards and technical means of the information revolution, and to establish interaction between consumers and power grid managers. (To be continued......)