bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Comparative Study of Environmental Accounting Information Disclosure between China and Developed Countries
Authors: Shen Jianfei , Chen Yidan 
Published: July 2020

Abstract
Natural resources and ecological environment are the basis for human survival. With the increasing severity of the contradiction between economic development and environmental protection, the public is paying more and more attention to environmental information. From the perspective of disclosure regulation and disclosure mode, this paper compares the differences in environmental accounting information disclosure between China and four developed countries: the United States, Britain, Japan, and Canada, and then puts forward some suggestions for improving the environmental accounting information disclosure system in China based on the comparison.
Heavy metals decreased by water elution method on bottom ash from municipal solid waste incineration plant
Authors: Lu Peng , Zhang Ai-Jia , Xing Li-Nan , Cao Qi-Quang , Zhang Xiao-Hui , Xie Guo-Li , Zheng Ming-Yue , Yuan Yuan , Chen Hong-Mie , Yang Dong-Qing , Zhang Quan-Hong , Ren Li-Mei , Wang Tao , Li Song , Zhang Jian , Zhang Zongzheng 
Published: July 2020

Abstract
By incineration treatment became the most important g municipal solid waste disposal method. The bottom ash, which accounting for 20% to 30% of the original municipal solid waste has been a large content source of municipal solid waste in China. The heavy metal will be released to the environment by the eluent produced from the bottom ash. It has a negative influence on bottom ash treatment and reuse. This study analyzed the changing of heavy metals of Cu, Ni and Zn during the elution process by the column simulation experiment. The study revealed the regulation of heavy metals migration under the condition of slow speed elution. These results can help environmental release risk assessment of heavy metal in bottom ash from municipal solid waste incineration plant.
Pilot Scale Study on Combined Ultra Filtration and Other Technique to Treat Rural Domestic Sewage
Authors: Lv Zongxiang , Zhou Zihao , Pan Run , Ding Aifang 
Published: July 2020

Abstract
The rural domestic sewage was treated by using combined ultra filtration with reverse osmosis (RO), constructed wetlands and biofilter respectively. The results showed that the average concentrations of COD, TP, NH4-N and TN in the effluent were 118.1, 5.4, 75.5 and 85.0 mg/L, and the average removal rates were 77.0%, 58.1%, -2.7%, and 15.1% by ultra filtration respectively. And then the effluent treated by RO process, the above water quality indicators had reached the I A level of the discharge standard of pollutants for urban wastewater (GB18918-2002). The average removal rates of COD were 35.6% and 35.1%, TP were 11.9% and 9.8%, NH4-N were 5.4% and 23.7%, TN were 6.1% and 7.6% by constructed wetlands and biofilter respectively. The overall removal rates of pollutants were not high and the effluent quality was not stable through the above two techniques. Therefore, further improvement is needed in design and operation of constructed wetlands and biofilter. Ultra filtration-reverse osmosis integrated equipment can be designed to treat dispersed domestic sewage in rural areas.
Swarm System of Unmanned Sewage Treatment Vessel in Large Waters
Authors: Yuan Bin , Hu Juntong , Lai Xiaobo , Lv Yijin , Liu Yingjiu , Rong Lishan 
Published: July 2020

Abstract
The Swarm System of unmanned sewage treatment vessel in large waters is mainly used to deal with water pollution in large waters. The purpose of the system is to provide assistance to large water areas such as Chaohu Lake whose self-purification capacity is insufficient to solve their own pollution or which have lost their self-purification capacity. The Swarm System is able to carry out water treatment and water quality monitoring to help lakes to restore the ecological environment of water body and self-purification capacity. This system adopts the working mode of local pump in treatment and discharge. The water quality monitoring system, which is combined with BeiDou positioning system and data transmission system, has the ability of presenting the water pollution situation in a three-dimensional way and stronger pertinence in sewage treatment. The mechanism of the system is similar to Unmanned Aerial Vehicle, which is considered as high working efficiency, fast processing speed, low cost and high intelligence.
Evaluation of Advanced Treatment Technology of Dyeing Wastewater Based on Analytic Hierarchy Process
Authors: Chen Xin 
Published: July 2020

Abstract
Determining the weight of the evaluation index is an important prerequisite for the evaluation of advanced wastewater treatment technology in the printing and dyeing industry. The article builds an evaluation model of 10 indicators of advanced treatment technology for printing and dyeing wastewater from three aspects: environmental benefits, economic benefits, and technical performance. Furthermore, the analytic hierarchy process was used to determine the weight of each index of the evaluation system. The calculation results show that the consistency ratios of the established judgment matrices are all less than 0.1, which has a good consistency, and the hierarchical single-ranking results all meet the requirements of consistency test. Therefore, the evaluation value of the advanced treatment technology of printing and dyeing wastewater calculated by AHP is more accurate and reliable. It can provide technical support for the next step of evaluating the performance of printing and dyeing wastewater treatment.
Research on multi-source coordination evaluation model of regional energy Internet
Authors: Guo Lei , Wang Linyu , Wang Yongli , Yang Jiale , Dong Huanran , Zhou Minhan 
Published: July 2020

Abstract
Energy Internet is the direction of energy development and an important means to change energy structure and improve energy efficiency. In order to promote the application and development of energy Internet, starting with the study of the key factors affecting the level of energy efficiency in the regional energy system, a multi-source optimization energy efficiency evaluation index system of regional energy Internet is established. Through the subjective evaluation of the first level indicators, the objective evaluation of the second level indicators and the final comprehensive empowerment, the comprehensive evaluation model of regional energy Internet multi-source optimization energy efficiency is built. Finally, taking a multi-source coordinated optimization operation of a park in Zhejiang Province as an example, the scientific rationality of the evaluation indexes and methods is verified.
Risk Assessment of Grid Communication System Based on MIC-FNN under SG and UPIOT
Authors: Yue Yunli , Jia Xuefeng , Li Cunbin 
Published: July 2020

Abstract
The communication system is the carrier of grid and information network coupling. The construction of reliable Smart Grid and Ubiquitous Power Internet of Things depends on the high coupling between the power grid and the information network. With the development of” the Grid and Internet”, the risk assessment of the power grid communication system has the characteristics of various levels, complex indexes and strong correlation. To deal with the risk effectively, this paper proposes an index system for evaluating the operation risk of grid communication system, which includes the cable loss level, the communication network power supply risk, the equipment operation risk, the external environment risk, the business interruption risk and the management risk. At the same time, a risk assessment model is built based on a fuzzy neural network, which overcomes the problem that traditional risk assessment methods rely too much on expert experience and makes prior knowledge embedded in the network. Finally, the model is proved to be scientific and practical by an example analysis.
An analysis of generator trip caused by mistransmitting high temperature signal from excitation transformer
Authors: Qian Zhunli 
Published: July 2020

Abstract
The excitation transformer is a device that specifically provides three-phase AC excitation power for the generator excitation system. The excitation system converts the three-phase power to the generator rotor DC power through the thyristor to form the generator excitation magnetic field, which is adjusted by the excitation system thyristor trigger angle, to achieve the purpose of adjusting the motor terminal voltage and reactive power. This article analyzes an accident in which the excitation transformer high temperature signal is erroneously caused to cause the unit to trip. The unplanned shutdown accident is specifically analyzed from the aspects of on-site situation investigation, cause analysis, main problems exposed, treatment and preventive measures.
Construction and Application of Scheduling Model of Power Grid Infrastructure Project Based on Delegate Power and Optimize Service Policy
Authors: Sheng Kun , Yan Huifeng , Xiang Ying , Yang Jun , Chen Yidong , Deng Jiaxi , Chen Wei 
Published: July 2020

Abstract
In order to adapt to the reform of transmission and distribution price, implement the company’s requirements of the policy of Delegate Power and Optimize Service, realize the precise investment of power grid and help the high quality development of power grid. It is urgent to explore a scientific and effective method of project schedule, assist the grid investment decision-making, and improve the level of investment plan management.
Research on Primary Frequency Modulation of Coordinated Control System for Wind Power Generator and Thermal Power Unit
Authors: Han Yingkun , Gao Song , Li Lei , Miao Weiwei , Li Yuanyuan , Yan Qing 
Published: July 2020

Abstract
Combined with the practical problems in the development of power system, the paper introduces the technical scheme and characteristics of primary frequency modulation(PFM) for thermal power units. Aiming at the impact of the rapid development of wind power generation on the stable operation of the power grid, the PFM strategy on the coordinated control system for wind power generators and thermal power units is proposed to dynamically adjust the PFM capacity of thermal power units, which effectively make up for the adverse impact of the uncertainty of wind power generation, and improve the stable operation capacity of the power grid. It has certain reference significance on the flexible operation control optimization of the power grid in the wind power centralized area.
The Research on the Benefit Evaluation Methodology of the Global Energy Internet and Case Analysis
Authors: Jin Yanming , Feng Junshu , Peng Fang , Wang Xiaochen , Xue Tan , Zhao Qiuli 
Published: July 2020

Abstract
This research focuses on the impact of Global Energy Internet(GEI)on the power system, energy environment, economy and society, and builds the comprehensive benefit assessment system of GEI. The benefit evaluation model system that realizes the quantitative assessment of the comprehensive benefits of GEI from the perspectives of economy, society, energy, and environment is constructed, which is based on global power Planning and production simulation model, Global Trade Analysis project(GTAP) and Climate Change Assessment Model (MEGGIC).The results show that GEI is conducive to realize the complementary benefits of multiple energy sources across region, achieve a win-win between the main sending and receiving areas, promote the use of renewable energy resources, and help achieve the 2°C temperature control target.
Analysis and Elimination of Shutdown Fault Caused by Mechanical Overspeed Protection of Diesel Engine
Authors: Lu Jia , Chen Zuotian , Dong Qingfeng , Zhang Zhigang 
Published: July 2020

Abstract
The article introduces the phenomenon of a single auxiliary engine overspeed fault alarm and stopping during a certain sea voyage. Through analysis and investigation, the post personnel finally accurately located the fault because the micro switch of the mechanical overspeed protection device was loose. Post personnel were eliminated in time and the status of the remaining units was also checked to ensure the stable operation of the ship’s power generating diesel engine.
Dynamic Coordination Control of HEV Unsteady Operating Mode Switching Based on MPC
Authors: Zhang Hongdang , Zuo Yanyan , Yang Hongtu , Zhang Fengjiao , Chen Song 
Published: July 2020

Abstract
Aiming at a hybrid electric vehicle (HEV), the impact problem is studied during the mode switching process under non-steady-state operating conditions. Firstly, the system dynamics model is established, the dynamic characteristics of unsteady conditions are analyzed, the BP neural network engine torque estimation model based on genetic algorithm optimization is established, and the engine torque is estimated online. MG1 torque coordination control and MG2 active compensation control are adopted, a mode switching coordination control strategy based on model prediction is proposed. The MATLAB / Simulink simulation platform is used to verify the effectiveness of the control algorithm. The simulation results show that the coordinated control strategy can effectively achieve the output torque compensation of the drive motor. The engine is actually close to the target torque. Compared with the uncoordinated control, During the speed synchronization phase, the maximum impact of the vehicle was reduced by 60.4%.
Economic analysis of the solar thermal and air source heat pump combined system for energy demand of buildings in China
Authors: Fu Feifei 
Published: July 2020

Abstract
This study focus on the economy of the solar thermal and air source heat pump combined system supplying the same demand of SH and DHW for a city household at different locations in China, namely; Beijing, Xi’an and Nanjing. These three locations represent the climatic conditions variety in China with different outdoor temperatures and solar radiation. At each location, the optimized simulations are carried out to recognize the most economical configurations. The results show that, for a 15-year running time, the system comprising 10m2 solar collectors and 5 kW air source heat pump is the best configuration having the minimum cost for all three cities, but the minimum cost of which is different for each location. At Nanjing, the system has the lowest cost of all the three cities, and the payback time of which is also the shortest. However, the payback time of the optimum system in Beijing is 15.9 years exceeding its running time, due to the lowest central heating fee included in the cost of the traditional heating method.
Multi-objective optimization design of regional integrated energy system
Authors: Li Xueliang , Wu Kuihua , Qi Lujie , Cui Can , Liu Dunnan , Li Chen 
Published: July 2020

Abstract
With the continuous development and progress of human society, the exploitation and utilization of fossil energy has also increased rapidly. With the intensification of the energy crisis and the continuous deterioration of environmental problems, it is urgent to find an energy-saving and environmentally-friendly Energy supply methods to replace traditional energy supply systems with high energy consumption and high pollution. The regional integrated energy system, by integrating multiple energy types and energy conversion equipment, can realize the stepwise and efficient use of energy, which is one of the important ways to solve the above problems. The performance of a regional integrated energy system is closely related to its planning and operation. Without proper system configuration and appropriate operating strategies, the system will not be able to achieve its due benefits. Therefore, it is urgent to propose comprehensive energy planning and operation optimization methods.
Research on the Evolution Path of China’s Power Spot Market
Authors: Fan Menghua , Qu Haoyuan , Yang Su 
Published: July 2020

Abstract
Recently, the construction of China’s power market is accelerating. With the continuous expansion of market-oriented trading scale and the rapid development of renewable energy, the balance of electric power supply is facing challenges, and all sectors of the society have strong demands to develop the spot market as soon as possible. The government requires that “by the end of 2018, the spot trading pilot should be launched; in 2020, the spot trading market should be fully launched”, and 8 spot market pilots have already been launched. By the end of September 2019, 8 provincial-level spot market pilots have completed the continuous settlement trial operation. With the development of spot market pilots and the further improvement of market conditions, it is necessary to gradually promote the integration and opening of provincial markets to enhance large-scale optimal allocation of resources. This paper focuses on the evolution mode and path from provincial market to national unified power market. Two modes are proposed and compared based on the conditions in China. This research is beneficial for the construction of national unified power market and prompting large scale power trading.
Predictive Control Of Transient Air-Fuel Ratio for Gasoline Engine Based on Wavelet Network Inversion
Authors: Song Dandan , Li Yuelin 
Published: July 2020

Abstract
To achieve accurate control of the transient air-fuel ratio for gasoline engines, a composite predictive control method based on wavelet network is proposed. The inverse system of transient air-fuel ratio system was to identify with wavelet network, which is able to dynamically compensate intake flow with feedforward control, and a pseudo-linear system is formed by cascading the inverse system with the original system. Then the dynamic matrix control(DMC) was used as a compensation for both internal and external disturbance in real time, and the effective control for transient air-fuel ratio system of nonlinear, time-delay and time-variation is realized. Finally simulated with experiment data at transient conditions, the results show that the inverse model based on wavelet network can accurately approximate the air fuel ratio transient process, and this method has stronger robustness and anti-interference. Therefore, the composite predictive control strategy has good control performances and can improve the control precision of air-fuel ratio in transient conditions.
An analysis of the burning accident of the tower bottom cabinet of G58-850KW wind turbine group
Authors: Xiong Guozhuan , Zhang Yuechao , Yang Peiwen , Zhu Zhe , Hu Peng 
Published: July 2020

Abstract
In March 2020, an accident happened in a wind farm in Jilin Province, which caused huge economic losses. Based on the investigation of the operation process at the scene of the accident, the burning condition of the equipment and the historical data of the relevant faults, it is found that the cause of this accident was the insulation aging between the low-voltage side turns of the transformer in the power converter cabinet. In the process of opening the main circuit of the equipment, the over-voltage phenomenon of the transformer occurs, which leads to the phenomenon of electric spark explosion. Through the accident analysis, a series of rectification measures are obtained, which will play a reference role for the subsequent maintenance and operation of wind turbines.
Application of Visualization System in Power Grid Dispatching
Authors: Wei Hou Ya 
Published: July 2020

Abstract
In recent years, the scale of power grid has been expanding, the demand of users for electricity has been increasing, and the importance of power dispatching system has been reflected. However, in order to improve the security and reliability of dispatching operation and reduce the working pressure of dispatching personnel, this paper proposes to use visualization technology to cooperate with other systems in the actual operation of regional power grid, and to help technicians to analyze and process the local data information extracted from many data by means of man-machine interface.
A system dynamics analysis about the recycling and reuse of new energy vehicle power batteries: an insight of closed-loop supply chain
Authors: Yang Jian , Mu Dong , Li Xin 
Published: July 2020

Abstract
In order to solve the problem about recycling and reuse of power batteries for new energy vehicles in China, the paper, from the perspective of closed-loop supply chain (CLSC), uses VENSIM software to construct the system dynamics model. By analyzing the degree of cooperation among enterprises in CLSC, the result indicates that through cooperating with foreign excellent enterprises and enhancing the degree of cooperation among enterprises in the CLSC, the development of new energy vehicle power battery recycling can be better promoted. In addition, this paper puts forward some reasonable suggestions on the development of new energy vehicle power batteries.
Study on the connection and settlement of forward electricity market and spot electricity market
Authors: Tang Chenghui , Zhang Fan 
Published: July 2020

Abstract
In recent years, China’s electricity market construction has gradually accelerated. Provincial medium and long-term electricity markets (forward market) have been established. Spot electricity markets have been established and have been in the trial operation stage in several pilot provinces in China. This paper introduces the connection and settlement of the forward electricity market and the spot market. The paper mainly discusses the contract for differences mechanism between the forward electricity market and the spot market when the forward bilateral contract are a financial contract. The strategy of forward bilateral contracts is studied according to the price expectations in the spot market.
Discussion on the remote visual control technology system of fully-mechanized heading face in mine
Authors: Gao Xubin 
Published: July 2020

Abstract
According to the present status of the intelligent and informational level of fully-mechanized heading face in mine, the remote visual control technology system of fully-mechanized heading face is put forward on the basis of the analysis of the working requirements of fully-mechanized heading face and the necessary intelligent information technology support for individual equipment and complete equipment of heading face. The six key technologies of complete equipment cooperative control, intelligent cutting, intelligent anchoring, intelligent transportation, working face vision, fault diagnosis and prediction are expounded. The present status and technical feasibility of fully-mechanized equipment are analyzed in detail, and the technical route of remote visual control of fully-mechanized heading face is defined. The problems that need to be innovated according to local conditions in the aspects of accessory materials transportation and environmental safety monitoring are put forward to realize the integration of the intelligent system. At present, through the remote visual control technology system, the goal of reducing people and increasing efficiency, safe operation and production data accumulation in fully-mechanized heading face has been achieved.