bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design of coupling monitoring model for operation state of new energy station based on Data Mining
Authors: Wang Nan , Li Qinghua , Sun Shumin , Cheng Yan , Guan Ti , Ma Qiang , Guan Yifei , Wang Shibo , Wang Yuejiao , Yu Peng 
Published: March 2021

Abstract
The development of modern technology has put forward new requirements for the monitoring methods and equipment modernization of new energy power stations in China. As an important part of the construction of new energy, the monitoring method of the new energy station should be designed according to its future development plan to meet the needs of safe use in the new energy station and ensure the healthy operation of the new energy station. In order to meet the above requirements, a data mining-based coupling monitoring model design for the operation status of new energy stations is proposed. Combining modern new energy station monitoring planning and design, this paper develops monitoring models in the construction of new energy stations, promotes the development and optimization of new energy station monitoring design, and applies dynamic monitoring models to the construction of new energy stations to ensure the safe operation of the station.
Smart grid planning suggestions and strategies under the new electric change plan
Authors: Chen Xingliang , Yan Hao , Piao Zheyong , Gao Xiaofeng , Li Haiyan , Jiang Dongxiao 
Published: March 2021

Abstract
New electric change plan is a major event in China’s power grid construction. Based on the basic content of China’s new electric change plan, this article analyzes the existing problems in combination with the current situation of smart grid construction, and proposes corresponding countermeasures for the problems. In general, in order to be able to adapt to the requirements of the new electric change plan, improvements need to be made in terms of management strategies and technical means, so as to fully promote the development of smart grid construction. At the same time, this paper establishes a multi-objective power grid planning mathematical model based on cosine sorting, and uses genetic algorithm to solve the model. Through the analysis of calculation examples and comparison with the results obtained by traditional methods, the validity and rationality of the model are verified, which has certain guiding significance for actual engineering.
Research on time delay compensation method of distributed generation system in active distribution network
Authors: Shi Weimei , Meng Yifeng , Liang Taohua , Dou Yao , Yang Shiqing 
Published: March 2021

Abstract
In order to solve the problems of low compensation accuracy and long compensation time in traditional time delay compensation methods for active distribution network distributed generation system, a new time delay compensation method for active distribution network distributed generation system is proposed. Firstly, the cause of time delay in active distribution network distributed generation system is determined, and then the global characteristics of time delay in active distribution network distributed generation system are extracted by frequency domain method. On this basis, the time delay characteristics of active distribution network distributed generation system are discretized, and the time delay characteristics set of active distribution network distributed generation system is obtained. The continuous function in Banach space is determined by the element method. On this basis, it is discretized, and the time delay compensation model of distributed generation system in active distribution network is constructed. The Lagrange coefficient is used to correct the model to complete the time delay compensation of distributed generation system in active distribution network. The experimental results show that the proposed method has the highest accuracy of 98% and the shortest compensation time of 0.1 s.
Thermal analysis of cooling module based on engine test of thermal balance
Authors: Chang He , Chen Yongjiu 
Published: March 2021

Abstract
Vehicle thermal analysis plays an important role of the overall vehicle development process. To determine energy distribution transformed from the heat released by combustion and build up the model to simulate heat transfer process of the cooling module, the engine bench was put forward to make thermal balance test and the drag test under vehicle target working conditions. It was found through the experiment data that the heat absorbed by the cooling system changed by the coolant temperature of the inlet. As a result, the correction map was established for the control system of cooling module that can be changed by the engine rotation speed, output torque and power value. A 1D -3D simulation model was built up by experiment data and coupling computing method. Based on the simulation model of cooling module that was verified by the thermal balance experiment data, the research and analysis were carried out on the performance of cooling module under the conditions of different environmental temperature and working state of air-conditioning system. The conclusion of interaction effects was made, which have important engineering value for the development of intelligent cooling module control system.
Design of geomagnetic simulation coil for naval eddy current magnetic field measurement
Authors: Liu Liu , Liu Sheng-Dao , He Bao-Wei 
Published: March 2021

Abstract
The research on ship eddy current magnetic field measurement is mostly based on magnetic simulation method. In view of the current used in degaussing station low magnetic compensation degaussing coil cannot meet the requirements of the homogeneous degree of the eddy current magnetic field measurement, this paper USES the particle swarm optimization algorithm, with magnetic modeling of coil system uniformity of evenness as objective function, by means of iteration, the parameters and the number of turns to the position of the coil system parameter optimization calculation, and find the optimal solution. According to the optimal solution, combined with the characteristics of the experimental site and the actual construction of the coil system, the uniformity of the magnetic field generated by the coil system was simulated, and a relatively uniform magnetic field space with the uniformity of more than 95% in the central region was established.
Comparative Evaluation of Stocking Products Based on Product Life Cycle Assessment
Authors: Shao Zhi-Yuan , Liu Lin 
Published: March 2021

Abstract

Objective In order to analyze the difference of environmental benefit between different processes of silk stockings products, the article puts forward the method of product life cycle analysis to provide reference for the subsequent selection and optimization of production process of silk stockings products. Methods The representative target products in silk stockings were selected, and the full life cycle model of production, use and waste of target products was established by product life cycle method. The two technologies were compared and evaluated quantitatively by analyzing relevant environmental impact indexes, and the reasons for the difference were analyzed by refining the product production process. Conclusion Dope dyed stocking fabric is more environmentally friendly than traditional dyed stocking fabric. The production process of a product is the link that has the greatest impact on the environment in the entire life cycle and the main link that causes the environmental differences between the two processes. The product life cycle model established in this paper can be used as a reference for the life cycle analysis of other similar fabric products, and it proposes a normalized index suitable for evaluating environmental benefits in other industries.
Impedance measurement circuit based on improved voltage vector ratio method
Authors: Wang Kai , Wang Shunjiang , Zuo Yue , Wang Xingcai , Gao Ming 
Published: March 2021

Abstract
China’s inductance value is traced back to the national inductance working base. In addition, in China’s electromagnetic metrology standard system, the inductance working standard can only be traced back to the source at 1kHz. The values at other frequencies are obtained after frequency conversion according to the distribution parameters of the inductance reference. The most accurate digital bridge is the 1689MRLC digital bridge, with impedance measurement accuracy of 0.02%, d and q measurement accuracy of 0.0001, and programmable test from 12Hz to 100kHz. Since the researchers need to work on the benchmark to ensure that the transmission capacity reaches 0.01% in the broadband (50 Hz-2.5 kHz), the measurement system needs to be redesigned.
Simulation Research on the Role of Energy Revolution in the Rise of China’s Five Central Provinces
Authors: Zhao Jinhui , Wang Yufeng , Xia Yongbo , Zhang Lijun 
Published: March 2021

Abstract
China’s energy revolution strategy serves as both a driving force and a hindrance to the rise of central China. Based on the six-dimensional data of GDP, industrial structure, urbanization, energy efficiency, per capita income and energy consumption of the five central provinces, this research sets three levels of growth rate, namely high, medium and low growth rates. With GDP growth as the key sub-scenario, a total of 13 rising models from SE11 to SE34 are established to simulate the high-quality rise of the five central provinces against the background of energy revolution. The results indicate that the path of high-quality rise of central China varies from SE11 to SE25, that is, from high-speed economic growth to benchmark growth model. For the model of rapid economic development, the industrial structure will be upgraded and the energy efficiency will be maximized. With the energy revolution, the emission of carbon dioxide will reach its peak in 2020. However, the adjustment of industrial structure promoting energy efficiency will be challenging, which will also cost a huge amount of energy. For the benchmark growth model, GDP growth rate is lower than that of the rapid development model, but the energy consumption is reduced, and the adjustment of industrial structure and the improvement of energy efficiency is less challenging. Improving energy efficiency has a higher effect on energy saving than upgrading industrial structure. Through energy revolution, the proportion of renewable energy will reach 23.06% in 2035, and consequently the emission of carbon dioxide will reach its peak two years ahead of schedule.
Research on Evaluation Method of Application Maturity of BIM Technology in Transmission and Distribution Engineering Based on Fuzzy Theory
Authors: Zhang Duo , Wang Zhengping , Yin Chenlei 
Published: March 2021

Abstract
With the continuous development of social economy and science and technology, the promotion and application of BIM technology in the whole process of power transmission and transformation projects is also increasing. Scientific and reasonable evaluation of the application maturity level of BIM technology in power transmission and transformation projects, and further improving the effective integration of BIM technology and power transmission and transformation project construction management, are of great significance for improving the quality of project construction and management efficiency. Therefore, on the basis of systematically sorting out the application scenarios of BIM technology in power transmission and transformation projects, this paper constructs a fuzzy theory-based method for evaluating the application maturity of BIM technology in power transmission and transformation projects, which can effectively guide the promotion and application of BIM technology and further improve transmission construction quality and management efficiency of substation projects.
Synchronous measurement technology of source-grid-load in renewable energy power system
Authors: Wang Kai , Zuo Yue , Li Dianyang , Wang Xingcai , Li Quanzheng 
Published: March 2021

Abstract
In this paper, the technology of synchronous phasor measurement and its application in power system transient stability prediction and control, state estimation and dynamic monitoring, fault location is introduced. The construction method of wide area measurement system based on synchronous phasor measurement technology is puts forwarded. The important role of synchronous phasor measurement technology in these fields and its significance to power system security are analysed.
Application of Electronic Diagnosis Technology in New Energy Vehicle Maintenance
Authors: Li Mengyin , Bai Chaofeng 
Published: March 2021

Abstract
With the continuous development of modern society and economy, the speed of new energy vehicles is also rapid, and the number is increasing rapidly. To determine the fault content in a short period of time during maintenance of this type of car, the application of electronic diagnostic technology is essential. This article summarizes the advantages of applying electronic diagnostic technology in the maintenance of new energy vehicles based on previous work experience. The author discusses the specific aspects of electronic diagnosis technology in the maintenance of new energy vehicles from four aspects: application in chassis output power detection, application in automobile circuit maintenance, application in automobile electric motor maintenance, and application in automobile power battery maintenance application content.
Design of automatic robot with electrolytic wiring for isolating circuit breaker
Authors: Zhu Shenglong , Li Binbin , Zhang Chenchen , Qin Shaorui , Liang Wei , Chen Haigen 
Published: March 2021

Abstract
Isolation circuit breakers are used in power stations to isolate voltages, and isolate the equipment to be repaired from live parts to form a safe operating space. In order to meet the needs of on-site maintenance and test of the new generation intelligent substation, avoid the need to stop other electrical equipment during the maintenance of the isolation circuit breaker, reduce the scope of equipment power failure and shorten the system debugging period, this paper proposes a design method of automatic live line disconnection robot for isolation circuit breaker, which can meet the requirements of bus clamp removal and installation, and improve the isolation of new generation intelligent substation Operation and inspection level of circuit breaker. The specific method is to design a mobile robot lifting platform, through the cooperation of manipulator, controller, arc strike rod, camera and other tools to realize the live line disconnection operation of three-phase bus. In this paper, 3D modeling and simulation show that the robot design scheme is feasible.
Evaluation and Analysis of Total Factor Input and Output of Power Grid Enterprises under the New Situation
Authors: Yu Jing , Lin Shiyuan , Huang Fenghui , Han Yaru , Tu Xiazhe , Liu Lin 
Published: March 2021

Abstract
The current economic and social development and changes in internal and external environments have brought severe challenges to the operation of power grid companies. By studying the input-output relationship of all factors in power grid companies, from the perspective of effectiveness, efficiency, and benefit, this paper constructs an input-output evaluation index system, introduces analytic hierarchy process and entropy method for weight calculation, uses weighted average method to construct input-output evaluation model, and conducts empirical research with relevant data and information in a certain area as an example. The research results can provide auxiliary decision-making support for the scientific and reasonable allocation of resources, and realize the clarity of input and output effects of power grid enterprises, scientific and rational investment arrangements, and lean business management.
Experience and Enlightenment of Japan’s Emergency Power Supply Guarantee Mechanism
Authors: Han Zhang , Song Xue , Li Ma , Xiaoxuan Zhang 
Published: March 2021

Abstract
Japan is a country prone to natural disasters such as earthquakes, tsunamis, and typhoons. Electricity is the key material basis for production, life and emergency management, so the reliability and stability of its supply is an important content of Japan’s disaster protection. In recent years, people have paid more and more attention to maintaining a normal and independent life even after the power and natural gas infrastructure has stopped. Therefore, the concept and practice of emergency power supply have been circulated and widely implemented in Japan for a long time. This paper summarizes the concepts, legal standards, development history, main methods, work of power grid companies, development trends, etc. of emergency power supply in Japan, and provides relevant experience and inspiration for the development of emergency power supply in China.
Prediction Technology of Payment Terminal State Based on Grey Model
Authors: Xu Mingfeng , Yuan Shaohua , Sun Xing , Wang Shaowei 
Published: March 2021

Abstract
This article analyzes the characteristics of power payment terminal operation. Grey model theory is used to predict the change trend and specific values of the multi-dimensional status information of the equipment. Firstly, the correlation analysis method is used to extract the core data with lower correlation degree from the massive state data. Secondly, the development trend of the data is predicted by the gray prediction model. Finally, the effectiveness of the gray model is verified by actual field data.
Numerical simulation analysis of leakage gas cloud explosion in LPG tank farm
Authors: Luo Zhenmin , Zhang Siqi , Gao Shuaishuai 
Published: March 2021

Abstract
a LPG tank farm model was established by FLACS software to simulate the leaking gas cloud explosion. The propagation process of explosion flame and the change process of explosion overpressure field and temperature field were studied under the influences of different leakage rate, wind speed and wind direction. The results show that, the larger the leakage rate is, the larger the impact area of gas cloud explosion is, the higher the explosion overpressure and temperature are. When the wind speed is larger than 4 m/s, the higher the wind speed, the faster the heavy gas will be diluted by the ambient gas, and the explosion will be suppressed. Under the influence of different wind directions, the impact area of explosion is also different.
A nanorod-like KTi8O16 catalyst for soot combustion
Authors: Li Qian , Lv Yanan , Li Yuebin , Zhang Nana , Zhang Jun , Zhang Zhaoliang 
Published: March 2021

Abstract
A nanorod-like KTi8O16 catalyst was successfully prepared by combustion method and applied for removing hazardous diesel soot. The cryptomelane structure of KTi8O16 is confirmed by X-ray powder diffraction (XRD). The straight and smooth crystalline nanorods with the diameter of 180 nm are identified by transmission electron microscopy (TEM) and (200) facet is observed to be preferentially exposed. K cations are not freely present in cryptomelane structure of KTi8O16 derived from X-ray absorption fine-structure (XAFS) results, possibly due to the confinement or interaction of K with Ti element. By temperature-programmed oxidation (TPO) experiments, its catalytic soot combustion performance was evaluated, with T
10 and T
m of 435°C and 511°C, which are decreased by 19°C and 45°C respectively compared with pure anatase TiO2. K+ species are deduced to serve as the active sites in the catalytic soot oxidation reaction, which are confined in the channels of the nanorod-like KTi8O16.
Process optimization and thermal risk analysis for 1,3,5-trihydroxy-2,4,6-trinitrobenzenen synthesis
Authors: Wang Yang , Wu Wenqian , Guo Zichao , Lin Qiuhan , Chen Liping , Chen Wanghua 
Published: March 2021

Abstract
1,3,5-Trihydroxy-2,4,6-trinitrobenzene (TNPG) is an important precursor material for high-performance explosive 1,3,5-triamino-2,4,6-trinitrobenzene (TATB). In this work, TNPG was synthesized by nitration of phloroglucinol (PG) using the nitrating agent of ammonium nitrate (AN) and sulfuric acid (H2SO4) mixture. The reaction rate and thermodynamics of the nitration reaction was studied. On the basis of a series of reaction calorimetry experiments and thermal stability tests, the feeding sequence and reaction temperature were optimized. The feed sequence of dosing PG/H2SO4 solution into the AN/H2SO4 solution is better than the opposite feed sequence. The best reaction temperature is at 5°C. The highest yield of ˜93% TNPG was obtained. In addition, the thermal risk analysis revealed that the thermal risk at the optimal operating condition was low.
Influence Factors on Viscosity Loss of Injection System in A Test Area
Authors: Yuan Dan Dan 
Published: March 2021

Abstract
As the first ASP flooding test in the transitional zone, it was put into pre polymer flooding in October 2018. However, the viscosity of single well cannot meet the design requirements at the initial stage of production. In view of the viscosity loss of polymer solution in the process of surface injection, by investigating the concentrated viscosity of each node of polymer injection process and single well injected outside the station, this paper analyzed the field test data and water quality report, found out the key links affecting the viscosity of polymer solution, and proposed various technical measures to reduce the viscosity loss. It is found that the viscosity loss is mainly formed after the mixing of polymer mother liquor and high-pressure sewage, and it is concluded that the main reason is the influence of injected water quality. Based on the analysis of salinity, bacterial content and iron ion in water quality, it is found in this paper that the viscosity of polymer injection increases by 40% when a fresh water pipeline is laid and the waste water is diluted on site.
Vapor-pressured induced synthesis of chemically bonded Fe1-xS/N-doped carbon composite nanoflakes as high-capacity, ultralong-cycle-life, and high-rate lithium-ion-battery anode
Authors: Han Meisheng , Li Jiayang , Li Zhenwei , Yu Jie 
Published: March 2021

Abstract
Ascribed to its high reversible capacity, Fe1-xS is taken as a promising lithium-ion-battery (LIB) anode material. Regrettably, unsatisfactory electrical conductivity, large volume change, and structural deterioration upon cycling of Fe1-xS severely delay its commercial application. Herein, a one-step vapor-pressured induced route is first proposed for synthesizing Fe1-xS/N-doped carbon composite nanoflakes (Fe1-xS/NC), in which Fe1-xS nanoflakes with an average thickness of 30 nm are tightly coated by N-doped carbon layers via chemical bonds of Fe-N-C, by pyrolysis of mixture of iron isooctanoate dissolved into dimethylformamide and thiourea in a sealed vessel. As LIB anode, the Fe1-xS/NC exhibits a high reversible capacity of 1106.8 mAh g−1 at 0.1 A g−1, an ultralong cycling life (722.7 mAh g−1 after 1400 cycles with 0.0098% capacity loss per cycle at 1 A g−1), and an excellent rate performance (219.8 mAh g−1 at 20 A g−1). This excellent performances may arise from its structural advantages that the smaller Fe1-xS nanoflakes are tightly wrapped into N-doped carbon layers via Fe-N-C bonds, which can increase lithium ion storage sites, electrical conductivity, and structural stability.