bluuebunny/crossref_metadata_2025_split huggingface dataset:
An Improved Hybrid Index Structrue for Per-Calculated Downwash Flow Field Visualization
Authors: Ni Ming , Wang Hongjie , Li Xingcheng , Liao Yilin , Fu Lin 
Published: September 2020

Abstract
With the application of aerial plant protection technology in field spraying, how to intuitively and quickly obtain the impact of propeller downwash flow field on droplet deposition has become an important aspect of field management. The unstructured grid is used for the propeller rotation area, the structured grid is used for the surrounding fluid domain; After the mesh generation, use Fluent software to iteratively calculate the propeller-fluid domain mesh model until the calculated residual values converge, In this way, the aerodynamic parameters of the propeller and the discrete grid value distribution of the surrounding fluid domain are obtained; In the OpenGL environment, use SPH method to establish the physical attribute particle model of the droplet, Create a mixed space domain of octree and KD tree at the same time, import pre-calculated grid numerical distribution data, and initialize the octree and KD tree in the fluid domain; Finally, the hybrid structure index algorithm is used to obtain the changes of the flow field around the particles, and the motion is solved based on Newton’s law to obtain the multi-particle flow field motion trajectory with high frame rate.
Application and Research of GPS Digital Image Measurement Technology in Landslide Disaster Monitoring and Prediction
Authors: Fu Jundong , Zhang Guangcheng 
Published: September 2020

Abstract
This article mainly uses GPS high-precision satellite positioning technology, using low-power, long-term maintenance-free power supply system monitoring equipment in the field, to establish a scalable and expandable landslide displacement deformation monitoring system. The system uses a combination of real-time monitoring, real-time processing, and timing processing to detect mountain deformation in time. Taking the monitoring of landslide accumulation area of a nuclear power plant as an example, through the monitoring data and the actual situation on the spot, the disease symptoms of the slope were discovered in time, and the development status of the disease was grasped. At the same time, preventive measures for related disease remediation were provided, especially when the climatic conditions changed the dynamic changes of the slope at the time, forecast the occurrence and development of the main diseases of high-risk slopes, analyze and predict the possibility of sudden diseases, do well in advance control, and reduce unnecessary losses.
Survey of Macrobenthos on Multiple Lithofacies in the Intertidal Zone of Jimo in spring and autumn
Authors: Li Tianhao , Sun Zhixian 
Published: September 2020

Abstract
Jimo is a district under the jurisdiction of Qingdao City, located in the southern Jiaodong Peninsula and bordering the Yellow Sea. The project is to investigate the distribution of benthic animals in the scattered lithofacies environment when the overall environment of the intertidal zone is sandy tidal flats, and to make a preliminary statistics of the species in the region, in October 2018 and April 2019, two benthic animal surveys were conducted at the same sampling point in an intertidal zone near Aoshanwei Town, Jimo District, Qingdao. A total of 32 species of macrobenthos in the intertidal zone were collected in six sections. There are obvious differences in ecological data in different lithofacies sections and winter and summer. The results of this survey can provide references for the study of macrobenthos in special lithofacies.
Resource utilization research on construction waste based on game theory
Authors: Lai Xiaomei , Xiong Yao , Chen Yi 
Published: September 2020

Abstract
The resource utilization of urban construction waste has become one of the important topics of scientific research. Construction waste resource companies are not only the key to the reuse of construction waste, but also the key to the government’s policy on construction waste resource development. A Starkberg model has been constructed in this paper to study the response behavior of governments and construction waste resource companies to maximize their own interests under a reward and punishment mechanism.
The operation analysis of the CCHP driven by Gas-steam combined cycle
Authors: Liang Junyu , Yuan Xingyu , Gu Jiangqi 
Published: September 2020

Abstract
In combined cooling heating and power system, the gas-steam combined cycle is gradually used more and more. The common operation mode in CCHP is mainly to determine heat by electricity and heat by electricity. This paper defines an index indicator and analyzes the difference between the two operating modes in different intervals through the system energy supply interval chart, finally analyzes the difference in the indicators between the two operating modes through the actual load method. It is concluded that in winter operating conditions, the following the thermal load (FTL) operation mode is better; in summer operating conditions, the indicator of following the electric load (FEL) is better; during the transition season, the value of PEC is better in the case of following the thermal load.
An Optimal Droop Control Method of DC Micro-grid with Local Loads
Authors: Gong Renxi , Liu Zihao 
Published: September 2020

Abstract
An optimal droop control optimization method is proposed of the DC microgrid. First, a modeling of the DC micro-grid is made based on the idea of model equivalence. And then, the traditional particle swarm optimization (PSO) is improved by introducing adaptive learning factors and inertial weights. Finally, based on the improved PSO algorithm, the droop parameters are optimized to optimize the system performance. The simulation results show that even under the dual effects of line impedance and local load, the system can still achieve a high accuracy of current sharing and has a significant suppression effect on the bus voltage deviation.
Study on Calibration Method for Electronic Transformer Test Set
Authors: Huang Tianfu , Wu Zhiwu , Wang Chunguang , Wu Xiang 
Published: September 2020

Abstract
A method for calibration of electronic transformer test set is proposed. The calibration principle of analog function and digital function of electronic transformer test set is analyzd in detail. And the uncertainty evaluation of the ratio error and phase error of electronic transformer test set is introduced. The proposed method can evaluate the measurement performance of electronic transformer test set as a whole. And the method can be used as a reference for calibration of electronic transformer test set.
Research on the Ultimate Performance of Organic Rankine Cycle Experimental System
Authors: Wang Haoguang , Zhao Jiayuan , Bian Yongning 
Published: September 2020

Abstract
At present, fossil energy is depleted and environmental pollution is severe. Based on this context, renewable energy has begun to be paid attention to, among which ocean thermal energy conversion (OTEC) has received more and more attention. In this paper, the organic Rankine cycle (ORC) wasted heat power generation system is built. Through the experimental method of controlling variables, the effects of the temperature of the heat source and the flow rate of the working fluid on system performance are explored. The results show that: when the flow rate of the working fluid is constant, as the temperature of the heat source gradually increases, the generating power of the ORC system increases rapidly first and then increases slowly. When the temperature of the heat source remains unchanged and the flow of working fluid gradually increases, the generating power of the ORC system increases first and then decreases. At different temperatures, there is a corresponding optimal working fluid flow that maximizes the system output power, and the higher the temperature, the greater the system output power. Through experiments, it is found that the maximum generating power of the ORC system is 667.55W, the corresponding heat source temperature is 120°C, the working fluid flow is 470.64 kg/h, and the frequency is 90 Hz. The experiment also found that the relationship between the pulse damper frequency and the working fluid flow is linear.
Investigation on vibration characteristics of ship shafting under uncertainty
Authors: He Xiaoliang , Shang Mingji , Li Guobing , Xing Pengfei , Gao Honglin , Qiu Shihao , Lu Lixun , Zhang Hongpeng 
Published: September 2020

Abstract
In order to investigate the influence of random uncertainty on the vibration characteristics of the ship shafting system, a nonparametric model that adds the data uncertainty and model uncertainty was constructed, and the system’s frequency response function and vibration response were calculated. The results show that the random uncertainty will make the frequency response function and vibration characteristics of the ship shafting system fluctuate. With the increase of random uncertainty, the degree of fluctuation of the system gradually strengthens. The study demonstrates that it is essential to consider the influence of random uncertainty during ship shafting designing and vibration calculation.
Economic Capacity Allocation of Grid-connected Microgrid Based on Improved Hybrid Genetic Algorithm
Authors: Guo Yu , Lv Hongfang , Wang Bingkun 
Published: September 2020

Abstract
For the wind and solar diesel storage grid-connected microgrid, in order to meet the minimum investment cost of the microgrid at the initial stage and have certain economic benefits. The objective function of this paper is the annual average economic cost, the number of each micro-power source is used as the optimization variable, the constraints of micro-grid operation are considered, the capacity optimization configuration model of grid-connected micro-grid is established, and then the improved genetic algorithm can be used to solve this problem. Finally, the annual average economic cost, the utilization rate of new energy and the redundancy rate are used as evaluation indicators. By comparing the configuration results of genetic algorithm, wolf pack algorithm and mixed wolf pack genetic algorithm, the capacity allocation scheme of microgrid under economic indicators is obtained.
A Method for Identifying the Friction-induced Vibration Based on The Maximum Information Coefficient
Authors: Xing Pengfei , Qiu Shihao , Li Guobin , Gao Hongtao , Gao Honglin , He Xiaoliang , Shang Mingji , Zhang Hongpeng 
Published: September 2020

Abstract
A reciprocating running-in experiment is carried out on a friction-abrasion testing machine with disk-pin friction pair. The friction-induced vibration (FIV) signals measured in the experiments are identified by the maximum information coefficient (MIC) method. Experimental investigation shows that the association strength between the identified tangential and normal FIV signal is in a positive correlation with the coefficient of friction. The two-directional FIV signals distribute in the same frequency range, and their root mean square (RMS) variations are in similar accord to the changing of the coefficient of friction and can indicate the wear state evolution of the disk-pin friction pair from the running-in wear to stable wear. Therefore, the FIV signals can be identified by the MIC method.
Study on composite Control of Three-phase three-level Vienna rectifier
Authors: Ai Meihui , Yang Dichun , Liang Zhe 
Published: September 2020

Abstract
This paper analyzes the working principle of The Vienna rectifier and the control method of the current inner ring. In view of the low precision and poor current tracking effect of the traditional single PI current loop control method, a new compound control strategy combining PI control and repetitive control was proposed. This method not only keeps the advantage of fast response speed of PI control, but also has the ability of harmonic suppression and anti-interference of repetitive control. The qualitative analysis of the composite control method and the full analysis of the current inner loop controller using the composite control were carried out. Finally, the simulation was carried out in MATLAB. The simulation results proved the correctness of the proposed control strategy PI plus repeated composite control strategy.
Research and Application of Unit Automatic Monitoring Integration Based on Grid Side in Gas Turbine Power Plant
Authors: Zhang Li , Zhang Fang , Wei Yu , Wang Tiankuo , Yu Longfei 
Published: September 2020

Abstract
In view of the original independent grid-related parameters scattered in electrical and thermal equipment, such as the AVC, PMU, primary frequency and DCS, this paper improves the operation reliability of grid-connected power plant equipment, achieves the visualization and retrace ability of grid-related parameters through the centralized monitoring, multidimensional, real-time tracking, intelligent alarm, report customization and log function. Secondly, using these real-time big data, the primary frequency regulation index of the unit is calculated and analyzed in real time, which improves the authenticity and correctness of the primary frequency regulation and AVC, thus to ensure the regulation performance and the stability of the output power frequency.
Optimal scheduling of cogeneration microgrid with wind energy and energy storage devices
Authors: Huang Lingxuan 
Published: September 2020

Abstract
Aiming at the optimal scheduling of cogeneration microgrid, a microgrid structure including wind energy, energy storage device, solar thermal power station, gas turbine and waste heat boiler is proposed. Based on the uncertainty of wind power output and load forecasting, according to beta distribution wind power output and normal distribution load forecasting, the CHP microgrid optimal scheduling model of photothermal power station is established and solved by genetic algorithm. Finally, the minimum operation cost of the system under different confidence levels is discussed. The results show that the minimum operating cost of the system can be significantly reduced by adding wind power generation into the microgrid structure, and the relationship between the confidence level of load forecasting and the minimum operating cost of the system is studied.
Research on Transformer Relay Protection System Based on Ubiquitous Power Grid Technology
Authors: Wang Lei , Li Yan , Zhu Hao , Huang Li , Huang Zhaoting , Zhou Jinqiao 
Published: September 2020

Abstract
Things are ubiquitous power system as the core power, combined with intelligent sensor terminal, a communication network, the network flow system more complicated artificial intelligence technology and internet cloud configuration, having a holographic perception, ubiquitous connection, open sharing, innovative features fusion. Where the grid-based networking technology, system components paper analyses imprecision transformer relay fuzzy theory, a reliability model corresponding relay, and more truly reflect the reliability of the system.
Research on Evaluation Method of Coal-to-Electricity Project Considering Load Access Mode
Authors: Ma Dongmei , Zou Gang , Guo Jian , Li Jiefu , Kan Zhongfeng , Wang Chuanyu 
Published: September 2020

Abstract
With the aggravation of air pollution, some cities in northern China have carried out the coal-to-electricity project in succession, replacing the traditional coal-fired heating with clean and pollution-free electric energy in winter heating period. In the process of project promotion, the regenerative electric boiler is widely used. In this context, this paper first analyzes the operating characteristics of regenerative electric boilers, and establishes a coal-to-electricity project evaluation model from the perspective of heating energy type conversion and distribution network construction based on optimization models that take into account different start-stop modes. And in the part of simulation examples, the actual data is used to evaluate and analyze the different load access methods, and the results verify the effectiveness of the model proposed in this paper. It can also guide the engineering practice and provide theoretical support for the introduction of DSM in the subsequent engineering.
Research on Implementation Methods of Power Grid Technology Supporting Energy Internet Construction
Authors: Li Xuyang , Li Juan , Li Lingyun , Guo Xinju , Kang Yanfang , Guo Xiaohan 
Published: September 2020

Abstract
The energy Internet is a complex multi-grid flow system, which is based on the power system, the Internet and other cutting-edge information technologies, with distributed renewable energy as the main primary energy and closely coupled with natural gas network, transportation network and other systems. The power grid technology has to develop to support the energy Internet construction. This paper discusses the changes and challenges in the asset environment, asset types, asset scope and asset risk under the energy Internet. Then the corresponding implementation methods of power grid technology to supporting energy Internet construction are put forward. The research results can provide reference for power grid companies to implement power technical innovation.
Mathematical research on the Crucial Factors Affecting Substation Engineering
Authors: Li Lingyun , Guo Xiaohan , Guo Xinju , Li Xuyang 
Published: September 2020

Abstract
The design plan of the substation engineering is crucial to the construction and operation of the substation. Reasonable mathematical analysis is helpful for the comparison and decision-making of the substation engineering in the early stage. In this paper, based on the parameter index of the 2016-2018 substation engineering, 24 factors affecting the substation engineering are selected, and a mathematical model is constructed for research. The study found five key factors that affect the substation engineering. The research results can provide reference for the scheme comparison and scientific decision-making of substation engineering.
A method of battery capacity prediction based on fuzzy logic and Neural networks
Authors: He Tingting , Xu Zhipeng , Xie Qi , Cheng Shan , Zhang Sheng 
Published: September 2020

Abstract
With the wide use of lithium battery, its online monitoring and residual capacity prediction have been paid much attention. There are two methods for predicting the residual capacity of lithium batteries, namely model method and data-driven method. The traditional model method requires in-depth understanding of the material characteristics and aging mechanism of the battery. However, it is difficult to establish an accurate model due to the complex electrochemical reactions in the battery and the vulnerability to external factors. The data-driven law has been applied more widely because of its good applicability and flexibility. This paper presents a method of battery capacity prediction based on fuzzy logic and neural networks. The lithium battery data published by PCoE are selected for the test, and the results show that the prediction error of the method for the residual capacity of single battery is less than 2%, which indicates that the method has a good applicability for the complex nonlinear system of lithium battery pack, and can obtain accurate battery capacity prediction value, and it has a good application prospect.
Hybrid Loss Minimization Control For Dual Three-phase Linear Induction Motor
Authors: Liu Xiaohu , Zhao Jinghong , Zhou Yangwei 
Published: September 2020

Abstract
Dual three-phase linear induction motor has harmonic losses that cannot be included in the loss-flux model in the z1-z2 subspace obtained by the generalized Clarke transform. The loss model of α-β subspace is not optimal for obtaining the reference flux. To solve this problem, losses in harmonic subspace was analyzed, and then a hybrid loss minimization control strategy was proposed. Based on the loss model that considers the end effect in the d-q subspace (transformed from α-β subspace), suboptimal flux linkage calculated by the model is set as the starting point of search controller, and optimal operating point could be obtained. Finally, the simulation results show that the strategy has better response performance than the traditional search method, and there is a certain loss reduction under various working conditions, especially at light load (0.2pu, 5 m/s), there is about 48.2% loss reduction.
Research On Technology Development Status and Trend Analysis Of New Energy Vehicle
Authors: Ye Chao , Xu Huawei , Hu Jianyao , Peng Qi , Yang Lin 
Published: September 2020

Abstract
In recent years, with the high awareness of the Chinese government on environmental protection, and support to the development of new energy, new energy vehicles have got developed to a certain extent and have grown into a new field where engineering machinery and new energy are closely integrated. Compared with fuel vehicles, new energy vehicles have great advantages in terms of environmental protection, the only disadvantage is that the engine’s power and stability still need to be discussed in depth. Based on the analysis of new energy vehicle development technology in china, this article will further study on the development trend and key research directions of new energy vehicle technology.
Test Bench Construction and Verification for Static Magnetic Coupling Wireless Power Transfer Systems
Authors: Zhang Baoqiang , Kong Zhiguo , Li Chuan , Li Jin , Wang Zhaohui , Zhao Lingxiao 
Published: September 2020

Abstract
In this paper, a test bench construction and verification scheme for static magnetic coupling wireless power transfer (WPT) systems is introduced, including test indices, test bench construction, test procedure, a test bench prototype and a specific test case. Firstly, a brief introduction to the working principle of the static magnetic coupling WPT systems is presented. Secondly, by interpreting the existing WPT systems test standards, the indices and test methods of the performance for WPT systems are given. Finally, the test procedure developed above is demonstrated by construction of an automatic test bench for WPT systems and a specific test case. In a word, the test bench shown in this paper can better complete the testing of various important indices of WPT systems, and it has certain guidance and reference significance for the construction and improvement of the subsequent bench.
Short-term planning and design of wind power base based on MATLAB power flow calculation method
Authors: Zhang Fei , Sun Xiaohui , Xi Jia , Guo Zimeng 
Published: September 2020

Abstract
At present, wind power generation technology is an environmentally friendly, mature technology, low cost and scale-efficient green technology. It is also the fastest growing new energy power generation technology form. The main research of this paper is to consider the spatial and temporal characteristics of wind resources, select a wind farm development combination, build a wind farm, and connect wind power to the grid through large-scale centralized development and long-distance high voltage. The experimental model used in this paper is an IEEE-57 node system. In MATLAB, the power flow calculation method is used to study and analyze the access point combination of the grid connection and the line expansion scheme after the grid connection.
Research on Onshore Power Supply System in Port for Ships
Authors: Li Kun , Du Ke 
Published: September 2020

Abstract
Due to various ship types, the shipboard devices which receive the shore power are varying. To ensure the safety of equipment and personnel in onshore power system (OPS) operation process during ship berthing at port, the global standards for the process of providing shoreside electrical power to a ship at berth is in high demand to be formulated. In this paper, the background of the OPS formulating, the composition of the OPS and existing problems when ship connect with the OPS are discussed firstly. Then, possible solutions have been proposed to determine the main content of the guideline. Finally, the significance of the guideline and the suggestion for the OPS development are given.