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Optimal dispatch of zero-carbon-emission micro Energy Internet integrated with non-supplementary fired compressed air energy storage system

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Journal of Modern Power Systems and Clean Energy 2016年第4期4卷 566-580页

作者： Rui li Laijun CHEN Tiejiang YUAN chunlai li Department of Electrical Engineering Tsinghua UniversityBeijing 100084China Department of Electrical Engineering Xinjiang UniversityUrumqi 830046China Qinghai Electrical Power Research Institute Qinghai Electric Power CorporationXining 810008China

To utilize heat and electricity in a clean and integrated manner,a zero-carbon-emission micro Energy Internet(ZCE-MEI) architecture is proposed by incorporating non-supplementary fired compressed air energy storage(NSF-CAES) hub.A typical ZCE-MEI combining power distribution network(PDN) and district heating network(DHN) with NSF-CAES is considered in this ***-CAES hub is formulated to take the thermal dynamic and pressure behavior into account to enhance dispatch flexibility.A modified Dist Flow model is utilized to allow several discrete and continuous reactive power compensators to maintain voltage quality of *** operation of the ZCE-MEI is firstly modeled as a mixed integer nonlinear programming(MINLP).Several transformations and simplifications are taken to convert the problem as a mixed integer linear programming(MILP)which can be effectively solved by CPLEX.A typical test system composed of a NSF-CAES hub,a 33-bus PDN,and an 8-node DHN is adopted to verify the effectiveness of the proposed ZCE-MEI in terms of reducing operation cost and wind curtailment.

关键词： Zero-carbon-emission micro Energy Internet Non-supplementary fired compressed air energy storage District heating network Power distribution network Dist Flow Mixed integer linear programming

Innovative developments in lunar and planetary science promoted by China's lunar exploration

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Science China Earth Sciences 2023年第11期66卷 2399-2418页

作者： chunlai li Wei YAN Jianjun liU Ziyuan OUYANG Key Laboratory of Lunar and Deep Space Exploration National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China Institute of Geochemistry Chinese Academy of SciencesGuiyang 550002China

As the only natural satellite of the earth, the Moon has always been the first choice for human exploration of the solar system. China's lunar exploration project(Chang'e project) was launched in 2004. At present, it has created a perfect end to the three phases of “orbiting, landing and returning”. A series of remarkable research achievements have been made on the basic issues of current lunar scientific research, such as the Earth-Moon space environment, lunar surface material, morphology,geological structure, lunar subsurface and internal structure, and the origin and evolution of the Moon, further deepening the human understanding of the Moon. This paper briefly reviews the development process of China's lunar exploration project,summarizes the main research results and scientific understanding, and finally prospects to the future development of China's lunar and planetary exploration.

关键词： Lunar exploration Lunar science Chang'e project Scientific achievements Future prospects

Nomenclature for lunar features at the Chang＇e-3 landing site

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Acta Geochimica 2017年第2期36卷 213-223页

作者： Zhoubin Zhang chunlai li Wei Zuo Xingguo Zeng Key Laboratory of Lunar and Deep Space Exploration Chinese Academy of Sciences Beijing 100012 China National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China College of Astronomy and Space Sciences University of Chinese Academy of Sciences Beijing 100049 China

Nomenclatures for lunar features always accompany the progresses of human lunar exploration,which has an important dual meaning in culture and science. The naming of lunar features not only can commemorate the outstanding contributions of academics,masters in various fields, and popularize the traditional cultures of ethnic groups all over the world, but also have a critical function of providing accurate indicative information on features with special morphology, origin, nature and scientific value. However, nomenclature for features at the Chang'e-3 landing site, which has a more arbitrary form without many constrains posed by a uniformed system, is unlike the features for other morphological *** paper originated from the actual needs for the description of scientific exploration activities, interpretation of scientific research and dissemination of scientific results. Some prominent morphological units with great scientific importance and identification purpose were chosen from the images taken by the terrain camera, panorama cameras and landing camera onboard the Chang'e lander and Yutu rover. A nomenclature system was established under the three enclosures, four quadrants and twenty-eight lunar lodges' system of the Chinese ancient sky division method. Finally, a standard feature names set waspublished after some necessary approval procedures by the International Astronomical Union.

关键词： Moon Chang'e-3 Landing site Lunarfeature nomenclature

Quantification of the chemical composition of lunar soil in terms of its reflectance spectra by PCA and SVM

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Chinese Journal Of Geochemistry 2009年第2期28卷 204-211页

作者： ZHANG Xiaoyu li chunlai LU Chang Graduate University of Chinese Academy of Sciences Beijing 100049 China National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China

In the second phase of the Chang'E Program an unmanned lunar rover will be launched onto the Moon. When ground scientists get a full understanding of the chemical composition of lunar soil around the rover, they can make more detailed survey plans for the rover and various payloads onboard so as to satisfy their scientific objectives. There is an obvious relationship between the reflectance of lunar soil and its chemical characteristics. Both principal component analysis (PCA) and support vector machine (SVM) models were applied to establishing the relationship between the reflectance spectra and chemical compositions of lunar highland and mare soil samples sent back by Apollo missions 11, 12, 14, 15, 16 and 17 and measured by Lunar Soil Characterization Consortium (LSCC). PCA was used to reduce and select the features of the reflectance spectra of lunar soil samples. Then, these features were put into SVM to estimate the abundances of various chemical components in lunar soil. We also compared the results of our measurement with those obtained by the SVM model [partial least squares (PLS)] and the principal component regression (PCR) model reported in literature. Our studies showed that with the exception of TiO2, the results of prediction of the abundances of chemical compounds in lunar soil by our model are much more reliable than those reported in literature. The reflectance spectra of lunar soil are closely related to the materials from which it was derived.

关键词：主成分分析月球土壤反射光谱支持向量机化学成分 SVM模型土壤样品偏最小二乘

Photometric modeling of the Moon using Lommel-Seeliger function and Chang'E-1 IIM data

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Chinese Science Bulletin 2013年第36期58卷 4588-4592页

作者： ZHANG Jiang liNG ZongCheng ZHANG WenXi REN Xin li chunlai liU JianZhong School of Physics Shandong University School of Space Science and Physics & Shandong Provincial Key Laboratory of Optical Astronomy & Solar-Terrestrial Environment Shandong University Academy of Opto-Electronics Chinese Academy of Sciences National Astronomical Observatories Chinese Academy of Sciences Institute of Geochemistry Chinese Academy of Sciences

The imaging interferometer(IIM)aboard the Chang’E-1 lunar orbiter is the first multispectral imaging spectrometer for Chinese lunar *** science applications(e.g.,FeO and TiO2mapping)of the IIM raw data,the radiance variation due to changes in illumination and viewing geometry has to be removed from the radiometrically calibrated IIM Level 2A *** achieve this,we fit the IIM Level 2A radiance data with a Lommel-Seeliger photometric model consisting of an exponential term and a fourth order polynomial in the phase function,without distinguishing between lunar maria and *** exponential and the fourth order polynomial parameters are derived separately by fitting to two datasets divided at a solar phase angle threshold,avoiding a decrease in the phase function close to zero phase *** phase angle thresholds result in coincident fitting curves between 20°and 75°,while large discrepancies occur at other phase *** the derived photometric model is used to normalize the IIM Level 2A data to radiance values at an incidence and phase angle of 30°and emission angle of 0°.Our photometric model is validated by comparing two photometrically normalized IIM radiance spectra covering the same areas,showing a relative deviation consistent with the IIM preflight calibration.

关键词：月球探测器嫦娥一号光度成像光谱仪建模 M数辐射校准相位角

Background deduction of the Chang'E-1 gamma-ray spectrometer data

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Chinese Journal Of Geochemistry 2012年第3期31卷 234-241页

作者： ZHANG liyan li chunlai liU Jinazhong ZOU Yongliao OUYANG Ziyuan National Astronomical Observatories Chinese Academy of SciencesBeijing 100012China Institute of Geochemistry Chinese Academy of SciencesGuiyang 550002China Graudate University of Chinese Academy of Sciences Beijing 100049China

Gamma-ray spectrometer(GRS) is used to detect the elemental abundances and distributions on the lunar *** derive the elemental abundances,it is vital to acquire background gamma rays except lunar gamma *** GRS would observe background spectra in the course of earth-moon transfer on *** in fact,GRS was not switched on in the course of flying toward the *** the CE-1 probe finished one-year mission,GRS car-ried out a test on background data on November 21?22,*** authors did conduct research on the methods of background deduction using 2105 hours of usable gamma-ray spectra acquired at the 200-km orbital height by the GRS and more than 5 hours of gamma-ray spectra acquired in the GRS background *** final research results showed that the method of deducting the background using the minimum counts in the CE-1 GRS pixels is optimal for the elements,U,K and *** method applies to such a case that the elemental abundances in the pixel with the minimum counting rate are 0 μg/g and the continuum background counts are constant over the *** on the method of background deduction,the full energy peak counts of U,K,and Th are calculated.

关键词：背景扣除 γ射线谱仪嫦娥一号伽玛射线表面元素元素丰度 GRS 光谱仪

Spatiotemporal characteristics of the energy radiation sources of the three great earthquakes near Sumatra Island in September 2007

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Chinese Science Bulletin 2008年第15期53卷 2364-2370页

作者： XU liSheng DUHailin ZHANG HongXia ZHANG Yong li chunlai ZHAO Hua Institute of Geophysics China Earthquake Administration Beijing 100081 China Geophysics Department of Peking University Beijing 100871 China

Three strong earthquakes with magnitudes of MW 8.4, MW 7.9 and MW 7.0 occurred in the sea west of Sumatra Island on September 12 and 13, 2007. We relocated the epicenters and focal depths of the three events by means of the reversal-time imaging technique using broadband digital seismic data from worldwide stations ranging from 30° to 90°, imaged the spatiotemporal variation of the energy radiation sources by means of the nonplane wave array technique using the broadband digital seismic data from a generalized array made up of 33 stations of the Capital Region Digital Seismograph Net-work (CRDSN), and obtained the rupture duration times, extents and rupture velocities. Also, we dis-cussed the correlations between the locations of the energy radiation sources of the three events.

关键词：苏门答腊岛地震能量辐射源测量技术

Review on physical models of lunar brightness temperature

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Chinese Journal Of Geochemistry 2010年第2期29卷 204-211页

作者： FENG Jianqing ZOU Yongliao BIAN Wei ZHENG Yongchun li chunlai National Astronomical Observatories Chinese Academy of Sciences Beo＇ing 100012 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China

Brightness temperature is a main index to reflect the energy of microwave radiation of an object. Using lunar brightness temperature data, physical properties of lunar regolith, such as thickness, heat flow and dielectric permittivity, could be interpreted. There are two methods to study brightness temperature distribution of the moon: the first is used to measure lunar brightness temperature by radio observation or spaceborne microwave radiometers, and the second is used to simulate calculation by the physical model. On the basis of the measurements of lunar brightness temperature in the history, this study analyzed the main physical model of lunar brightness temperature, also including its theory and influence factors. The authors concluded that surface and subsurface temperatures of the moon, dielectric properties and layered structure of lunar regolith were the main factors affecting the global brightness temperature of the moon. These factors should be quantified in detail in the future research.

关键词：亮度温度物理模型月球星载微波辐射计综述测量计算辐射能量温度数据

The payloads of planetary physics research onboard China’s First Mars Mission (Tianwen-1)

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Earth and Planetary Physics 2020年第4期4卷 331-332页

作者： WeiXing Wan Chi Wang chunlai li Yong Wei JianJun liu Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100029China National Space Science Center Chinese Academy of SciencesBeijing 100029China National Astronomical Observatories Chinese Academy of SciencesBeijing 100012China

Mars is not only our nearby but also the most Earth-like planetary *** exploration of Mars is thus of crucial value to our understanding of the solar *** existence of abundant evidence for the former presence of water on Mars demands further exploration for signs of life on our sister planet,and investigations that could shed light on conditions favorable to the origin of *** nearly 60 years,humans have conducted orbitally-based remote sensing and in-situ surface exploration of Mars,leading to many significant scientific *** much remains to be done before we can be sure that we truly and fully understand *** research topics include the history of water on Mars and how that history relates to the planet’s habitable environment-past,present,and future;the distribution and evolution of waterbearing and evaporative salt minerals on the planet’s surface;the history of volcanic activity on Mars;the Martian magnetic field and its effect on the escape of water and atmosphere from the planet;interactions between the solar wind and the Martian atmosphere and ionosphere;atmospheric characteristics and climate change on Mars;and so on(li CL et al.,2018;liu JJ et al.,2018).Based on the above scientific questions about life,climate,and geology on Mars,the international planetary science community has formulated ambitious Mars exploration programs.

关键词： Mars Tianwen-1 payload