The Research in Wind Power Accommodation Jointly Carried Out by Department of Electrical Engineering, and School of Environment in Tsinghua University and Harvard University Team was Highlighted by ‘IEEE Spectrum’

Zhang Ning, assistant professor of Department of Electrical Engineering, Lu Xi, associate Professor of School of Environment and Harvard University researchers co-published academic paper ‘Reducing curtailment of wind electricity in China by employed electric boilers for heat and pumped hydro for energy storage’ in the "Applied Energy" journal. This paper has recently been highlighted reported in the discussion of China's wind power in No. 9 ‘IEEE Spectrum’ (IEEE Overview) magazine, 2016. The co-author of the paper includes Professor Michael B. McElroy of Harvard University, Postdoctoral Researcher Chris P. Nielsen, Postdoctoral Researcher Chen Xinyu, Assistant Researcher, Deng Yu in Geography Institute of Chinese Academy of Sciences and Kang Chongqing, professor in department of Electrical Engineering.

Based on the ‘Power Planning Decision Support System (GOPT)’ developed by the team of the Department of Electrical Engineering, depending on the wind speed and temperature data analyzed from the GEOS-5 meteorological resource database of the National Aeronautics and Space Administration (NASA),the paper discusses the expectation of wind power curtailment in power grid of ‘thirteen five’ period and analyzed the use of pumped storage power station and wind power heating (electric boiler) to reduce the role of wind power curtailment. It is found that the pumped storage has a positive effect on the absorption of wind power, but it has limited effect in the case of repeated years of curtailment. On the one hand, wind power heating can directly use the wind power wasted. On the other hand, it can reduce the heating load of the thermal power unit and improve its operational flexibility, which can effectively reduce the phenomenon of curtailment. The study further simulates a variety of future scenarios, and further obtained the optimal heating capacity for wind power heating.

The research and development of the Renewable Energy Output and Renewal of Electric Power System has been applied to more than ten renewable energy regions such as Gansu, Qinghai, Inner Mongolia, Jiangsu, Jibei, Shandong, Yunnan and Hainan. The system can be based on renewable energy resources information on wind power, photovoltaic output to reconstruct and the renewable energy of the timing output. It can also schedule operation in day-to-day simulation system and quantify the reasons of power system wind and PV curtailment. Furthermore, it can evaluate the effectiveness and economy of all kinds of technical measures and policies to promote the consumption of renewable energy and provide important support for power supply and power grid planning decision in China's renewable energy access area.

The team from School of Environment is committed to the environmental and climate issues associated with China's coal-dominated energy structure, through the complex modeling of renewable energy and environmental systems such as wind power and solar energy, to explore the potential of wind to replace fossil fuels and its CO2 and atmospheric pollutants emission reduction role. The team cooperates with Harvard University China Project Team to innovate the wind energy resource potential evaluation system, which has deepened the understanding of the spatial distribution of wind energy and the change of time from atmospheric science theory. On this basis, it is committed to building low-carbon energy to environment synergistic benefit of the comprehensive assessment system for the source to solve China's air pollution problems facing the exploration path.

IEEE Spectrum is the flagship publication of IEEE, which is used to cover the forefront of research in the field of electric, electronics and IT in academia and industry. It also look forward to discussing future technology trends and published online and offline at the same time. IEEE Spectrum reported in March 2015 that Professor Zhang Ning had previously studied about the pumped storage.


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