Zhongxin Finance, March 12 (Shi Rui) The government work report proposes to promote the energy revolution, ensure energy supply, base on resource endowments, adhere to the establishment first and then break, and comprehensively plan, and promote the low-carbon transformation of energy.
"Constructing a new power system with new energy as the main body is an important way for the energy revolution and the ultimate realization of the 'dual carbon' goal. According to the '3060' time requirement, the new power system is a systematic project with heavy tasks and tight time. Among them, construction directions such as new power infrastructure, digital transformation of power grids, and market cultivation of power data elements need to deeply embrace new technologies and new models.”
In 2022, Zhongxin Finance and the School of Economics and Management of Tsinghua University will launch the "Two Sessions Economic Observation", Li Jizhen, deputy dean and professor of the School of Economics and Management of Tsinghua University, said in an exclusive interview with the "China New Observation" column of Chinanews.com.
Photo courtesy of Li Jizhen, associate dean and professor of the School of Economics and Management, Tsinghua University School of Economics and Management, Tsinghua University
It is necessary to continue to strengthen the construction of electric "highway"
At present, my country's power system is mainly based on thermal power generation, supplemented by hydropower, wind power, photovoltaic power, and nuclear power.
In 2021, my country's clean energy consumption will account for 25.5% of total energy consumption, an increase of 1.2 percentage points.
With the gradual increase of the proportion of new energy, the problem of reverse distribution of energy resources and demand has become prominent. Most of my country's hydropower, wind power, photovoltaic and other new energy power generation areas are far away from the power demand center, which is proposed for the power transmission system. request.
In this regard, Li Jizhen said that the UHV technology in the new power infrastructure can solve the problem of power supply and demand mismatch and new energy consumption.
UHV is called the "highway" of electric power, which refers to the transmission technology of AC 1000 kV and DC plus or minus 800 kV.
He believes that during the "14th Five-Year Plan" and "15th Five-Year Plan" period, my country needs to continue to strengthen the construction of UHV DC backbone channels and the construction of UHV AC synchronous power grids, and at the same time promote the interconnection of cross-border power grids, so as to truly adapt to the "double high" and "double high" Under the situation of “peak”, new energy is connected to the grid and consumed, promoting the transformation and upgrading of the power system.
The digital transformation of the power grid is the general trend
Promoting the energy revolution, the rising proportion of new energy requires the grid structure to change.
Li Jizhen believes that the digital transformation of the power grid is the general trend. In the future, to adapt to the needs of richer levels of data collection, transmission, processing, and application, it needs the support of software and hardware facilities such as networks and platforms.
Li Jizhen analyzed that the construction of a new power system can rely on powerful "electricity + computing power", through massive information data analysis and high-performance computing technology, through data relationships to discover power grid operation rules and potential risks, to achieve safe and stable operation of the power system and resources. Large-scale optimization of configuration enables the power grid to have super sensing capabilities, intelligent decision-making capabilities and rapid execution capabilities.
"The application of data value-added services under the 'dual carbon' goal needs to be vigorously strengthened." Li Jizhen believes that energy and power data can strongly support the construction of new power systems. From the aspects of planning, infrastructure, operation, simulation, and panoramic display, it is necessary to coordinate and plan big data. Innovative applications to achieve a panoramic view of the power grid.
By driving the upgrade of power digital service applications, building a new power system, realizing the intelligent transformation of the power grid, and moving towards an "energy revolution".
Li Jizhen pointed out that the new power system still needs to solve many challenges such as economy, safety and environmental protection, and it is necessary to create a more flexible platform for optimal allocation of energy resources to support large-scale new energy development and utilization, new power infrastructure, power grid digital transformation, power The mainstream technologies and operational foundations in subdivisions such as data element market cultivation are in urgent need of upgrading and reconstruction.
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