Modern energy society will enter the new direction of smart grid
Recently, a large-scale environmental forum jointly sponsored by the Research Center for Environment and Development of the Chinese Academy of Social Sciences and the Institute of Information of the Chinese Academy of Social Sciences, the Ministry of Environmental Protection of China, the Environmental Protection Association of the Ministry of Environment, and the non-governmental environmental protection organization Daerwen Natural Society, and our life in Beijing Held. Beijing Electric Power Company gave great support to this forum.
Qiu Jiang, Deputy Director of the Department of Nuclear Facilities Safety Supervision of the Ministry of Environmental Protection Zhang Shaomin, Secretary-General of the China Environmental Culture Promotion Association, Zhang Xiao, Director of the Center for Environment and Development of the Chinese Academy of Social Sciences, Senior Advisor of the Energy Research Institute of the National Development and Reform Commission Zhou Fengqi, Beijing Electric Power Company Chief Engineer Wang Shaoyi, Director of Science and Technology Information Department of Beijing Electric Power Company, Wang Peng, Deputy Director of China Center for Circular Economy and Environmental Assessment and Prediction, Chinese Academy of Social Sciences Liu Qiang, Deputy Chief Engineer of China Academy of Electric Power Research Institute, Zhu Lingzhi, North China Electric Power University Cui Xiang, deputy director of the State Key Laboratory of New Energy Power System, and He Jinliang, director of the Institute of High Voltage and Insulation Technology of the Department of Electrical Engineering and Applied Electronic Technology of Tsinghua University attended the forum.
Government officials and experts and scholars attending the meeting expressed their views on the situation, challenges and transformation of China's energy development, energy development direction and environmental impact, the advantages and applications of new transmission technologies, and the development and integration of solar photovoltaic power generation.
Researcher Zhou Fengqi pointed out in his speech that in 2012 China's energy demand growth slowed down, energy supply capacity further increased, supply and demand showed a loose balance, the energy structure was optimized, and energy intensity and energy efficiency were also improved. However, energy and the environment are faced with severe challenges, environmental protection pressures are increasing, air pollution is becoming increasingly complex, indoor air pollution appears, China’s urban air quality compliance rate is low, and urban hazy days are highlighted, making it difficult to cope with global climate change. Increase, the contradiction between energy resources constraints will still exist for a long time. Therefore, energy development must be transformed into green and low-carbon. It is necessary to strengthen the energy conservation priority strategy, strengthen industrial energy conservation, implement energy conservation in buildings, promote traffic energy conservation, and vigorously develop renewable energy.
Dr. Liu Qiang pointed out that various energy forms inevitably have environmental impacts, and whether or not the energy is green is determined from the whole life cycle. The key to green energy depends on intelligence and environmental management. Liu Qiang believes that as the development direction of the modern energy society, the smart grid must adapt to the pattern of community activities in order to achieve energy conservation and environmental goals. Therefore, a new type of social system needs to be established to realize the most efficient use of electric energy and heat energy. This is the smart community. Smart development must adhere to the following eight principles: a compact and convenient neighborhood community; a variety of convenient travel options; a harmonious relationship with natural ecosystems; greener, smarter and cheaper buildings and infrastructure; Housing; Working place close to the place of residence; Cozy local community lifestyle; Respect for individual opinions.
Regarding photovoltaic power generation and grid connection issues, Zhu Lingzhi pointed out that there is no technical problem with grid-connected photovoltaic power generation. Zhu Lingzhi said that the large-scale development of photovoltaic power generation has brought new challenges to the operation and management of the power system. By establishing a sound grid-connected standard system, strengthening the transmission capacity building of the power grid, and improving the level of operation and maintenance of the power grid and the degree of intelligence, it can be realized. The friendly access and full consumption of large-scale and distributed photovoltaic power generation.
Professor He Jinliang pointed out that the public is generally concerned about the electromagnetic environment of the electric power system. With the rapid development of electric power in our country, it will inevitably produce an electromagnetic environment composed of electric and magnetic fields during the process of electricity use. Professor He Jinliang quoted WHO's point of view that a large number of studies since 1979 have failed to prove that the low-frequency electric and magnetic fields in the living environment directly harm organisms, and that low-frequency magnetic fields do not seem to cause cancer. Do not rule out the presence of selective bias and confounding factors in epidemiological studies.
Professor Cui Xiang believes that China’s national economy will continue to grow rapidly in the future and electricity demand will be huge. The reverse distribution pattern of large-scale power supply bases and load centers will not change, the transmission distance will be further and longer, and the transmission volume will increase. Based on comprehensive technical and economic analysis, overhead lines are still the main transmission medium, and UHV AC/DC transmission technologies will be mainly used for long-distance large-capacity transmission and transmission across large areas.
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