20 results on '"Xin-gang, Zhao"'
Search Results
2. Policies and economic efficiency of China's distributed photovoltaic and energy storage industry
- Author
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Xin-gang Zhao and Fei-fei Yang
- Subjects
Economic efficiency ,Rate of return ,020209 energy ,Mechanical Engineering ,Photovoltaic system ,Public policy ,Context (language use) ,02 engineering and technology ,Building and Construction ,010501 environmental sciences ,Environmental economics ,Investment (macroeconomics) ,01 natural sciences ,Pollution ,Industrial and Manufacturing Engineering ,Energy storage ,Technical support ,General Energy ,0202 electrical engineering, electronic engineering, information engineering ,Business ,Electrical and Electronic Engineering ,0105 earth and related environmental sciences ,Civil and Structural Engineering - Abstract
Storage energy is an effective means and key technology for overcoming the intermittency and instability of photovoltaic (PV) power. In the early stages of the PV and energy storage (ES) industries, economic efficiency is highly dependent on industrial policies. This study analyzes the key points of policies on technical support, management drive, and financial support. Focusing on the efficiency of PV power and the power load of users, including households and enterprises, in Shanghai City over 24 h in 2016, this study analyzes the costs, benefits, internal rates of return, and investment recovery periods of distributed PV (DPV) and ES systems in the current policy context. This study also discusses the influences of various policy variables, including the ES battery capacity, the peak-valley price ratio, feed-in tariffs for DPV, and the ratio of grid-connected surplus PV power, on economic efficiency. The results show that in China's current policy context, both household and enterprise users of PV power would gain some economic benefits if PV systems were fitted with aqueous sodium-ion batteries of an appropriate capacity. Finally, this study offers some additional government policy suggestions.
- Published
- 2018
3. Improved resistance matrix approach for readout of the two-dimensional resistive sensor array
- Author
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He Shangshang, Wang Feng, Yu Wang, Wang Qi, Xin-Gang Zhao, and Wu Jianfeng
- Subjects
0209 industrial biotechnology ,Resistive sensors ,Materials science ,business.industry ,020208 electrical & electronic engineering ,02 engineering and technology ,Crosstalk ,020901 industrial engineering & automation ,visual_art ,Electronic component ,0202 electrical engineering, electronic engineering, information engineering ,visual_art.visual_art_medium ,Optoelectronics ,business ,Instrumentation ,Electronic circuit - Abstract
In the readout circuits of the two-dimensional (2-D) resistive sensor arrays, various auxiliary electrical components were used to reduce their crosstalk errors but resulted in increased circuit complexity. Readout circuits with low-complexity structures were necessary for wearable electronic applications. With only several resistors and a microcontroller, readout circuit based on resistance matrix approach (RMA) achieved low complexity but suffered from small resistance range and large measurement error caused by the output ports’ internal resistances of the microcontroller. For suppressing those negative effects, we firstly proposed an improved resistance matrix approach (IRMA) by additionally sampling the voltages on all driving row electrodes in the RMA. Then the effects of the output ports’ internal resistances and the analog-to-digital converter’s accuracy for the RMA and the IRMA were simulated respectively with NI Multisim 12. Moreover, a prototype readout circuit based on the IRMA was designed and tested in actual experiments. The experimental results demonstrated that the IRMA, though it required more sampling channels and more computations, could be used in those applications needing low complexity, small measurement error and wide resistance range.
- Published
- 2018
4. Market structure and performance: An empirical study of the Chinese solar cell industry
- Author
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Dan Nie, Yanbin Li, Xin-gang Zhao, and Yun Li
- Subjects
Renewable Energy, Sustainability and the Environment ,020209 energy ,media_common.quotation_subject ,Photovoltaic system ,02 engineering and technology ,Market concentration ,Market structure ,Promotion (rank) ,Empirical research ,0202 electrical engineering, electronic engineering, information engineering ,Market share analysis ,Revenue ,Business ,Marketing ,Market share ,Industrial organization ,media_common - Abstract
Based on an analysis of 9 solar cell enterprises from 2008 to 2014, this paper examined the Chinese solar cell industry's market structure and performance. The empirical results reveal that China's photovoltaic (PV) cell market supports the X-efficiency structure hypothesis and that enterprises with higher levels of production technology and management earn higher profits. However, market concentration, market share, and scale efficiency are not significantly related to corporate performance. In addition, reasonable and effective control of the debt-to-assets ratio of such enterprises is conducive to revenue improvement. Based on these conclusions, this paper offers suggestions on how to improve the performance of the PV cell industry from the perspectives of enterprise and government. The research results have substantial significance for the promotion of enterprise reform and the optimization of industrial resource allocation.
- Published
- 2017
5. A multi-objective sustainable location model for biomass power plants: Case of China
- Author
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Xin-gang Zhao and Ang Li
- Subjects
Sustainable development ,Engineering ,Power station ,Location model ,business.industry ,020209 energy ,Mechanical Engineering ,Supply chain ,Environmental engineering ,Biomass ,02 engineering and technology ,Building and Construction ,Environmental economics ,Raw material ,Pollution ,Industrial and Manufacturing Engineering ,General Energy ,Electricity generation ,020401 chemical engineering ,Sustainability ,0202 electrical engineering, electronic engineering, information engineering ,0204 chemical engineering ,Electrical and Electronic Engineering ,business ,Civil and Structural Engineering - Abstract
Most of the existing biomass power plant location models and supply chain designs are developed only for the minimization of logistics cost, having neglected the pollutant emissions during biomass feedstock transportation. How to achieve a win-win situation between the two for optimal power plant locations has become a main research direction. This paper, integrating the economic and environmental dimensions of sustainable development, develops a bi-objective 0–1 integer programming model for optimal locations and corresponding feedstock supply chain designs of biomass power plants. Having made improvements to the existing location models, this model is developed basing on the relevant research data of Chinese biomass power generation. A numerical example analysis is done in order to validate the model and to highlight the practicality and effectiveness. It is expected that this model may provide scientific guidance for biomass power plant siting and improve their environmental performance while still remaining economically competitive.
- Published
- 2016
6. The Evolution of Renewable Energy Price Policies Based on Improved Bass Model: A System Dynamics (SD) Analysis
- Author
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Xin-gang Zhao, Yu-zhuo Zhang, and Yan-bin Li
- Subjects
020209 energy ,Geography, Planning and Development ,Tariff ,TJ807-830 ,renewable portfolio standard ,02 engineering and technology ,Management, Monitoring, Policy and Law ,TD194-195 ,Renewable energy sources ,renewable energy ,feed-in tariff ,bass model ,system dynamics ,0202 electrical engineering, electronic engineering, information engineering ,Economics ,GE1-350 ,Feed-in tariff ,Industrial organization ,Wind power ,Environmental effects of industries and plants ,Renewable Energy, Sustainability and the Environment ,business.industry ,Price mechanism ,Renewable energy ,Environmental sciences ,Electricity generation ,Renewable portfolio standard ,Price support ,business - Abstract
Many countries in the world have implemented many price support policies to promote the development of renewable energy, and there are evolutionary processes between different policies at different stages of national development. Existing literature has less research on the internal mechanism and alternative process of renewable energy price policies’ evolution process. In view of this, this paper innovatively introduces the classic model of innovation diffusion theory, the Bass model, into the renewable energy price mechanism, and improves it on the basis of the traditional Bass model, and then proposes a system dynamics (SD) simulation based on the improved Bass model to study the evolution process of the renewable energy price policies. This paper mainly studies the evolution process of the policies from feed-in tariff (FIT) to renewable portfolio standard (RPS), and takes China’s wind power industry as an example to simulate the model. The results show that FIT can effectively and quickly evolve to RPS based on the internal influence of the interaction among power generation enterprises and the external influence of government behaviors. All the power generation enterprises will implement RPS, and the amount of green power enterprises eventually grows steadily and slowly. In addition, increasing the decline rate of FIT subsidy and RPS unit fine can effectively promote the evolution of RPS policy, and also improve the amount of green power enterprises and the activity of the tradable green certificates (TGC) trading market.
- Published
- 2018
7. WITHDRAWN: Policies and economic efficiency of China's distributed photovoltaic plus energy storage industry
- Author
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Feifei Yang and Xin-gang Zhao
- Subjects
Economic efficiency ,Renewable Energy, Sustainability and the Environment ,020209 energy ,Photovoltaic system ,0202 electrical engineering, electronic engineering, information engineering ,02 engineering and technology ,Business ,Environmental economics ,China ,Energy storage - Published
- 2018
8. The System Dynamics (SD) Analysis of the Government and Power Producers’ Evolutionary Game Strategies Based on Carbon Trading (CT) Mechanism: A Case of China
- Author
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Yu-zhuo Zhang and Xin-gang Zhao
- Subjects
Sequential game ,020209 energy ,Geography, Planning and Development ,lcsh:TJ807-830 ,lcsh:Renewable energy sources ,behavior strategies ,02 engineering and technology ,010501 environmental sciences ,Management, Monitoring, Policy and Law ,01 natural sciences ,Evolutionarily stable strategy ,Microeconomics ,Strategy ,0202 electrical engineering, electronic engineering, information engineering ,carbon trading ,evolutionary game ,system dynamics ,Energy economics ,lcsh:Environmental sciences ,0105 earth and related environmental sciences ,lcsh:GE1-350 ,Government ,Renewable Energy, Sustainability and the Environment ,lcsh:Environmental effects of industries and plants ,Subsidy ,Bounded rationality ,System dynamics ,lcsh:TD194-195 ,Business - Abstract
Climate warming caused by carbon emissions is one of the most serious problems faced by human beings, and the carbon trading (CT) mechanism is an effective way to promote carbon emission reduction and achieve green and low-carbon development. Scholars have mainly studied the impact of CT on the energy economy system, and few scholars studied the game process and behavior strategies of government and power producers in the implementation of a CT mechanism. This paper will fill this gap. This paper firstly constructs the evolutionary game model of government and power producers based on CT, and then simulates the evolutionary process of game behavior strategies by establishing a system dynamics (SD) model, and finally studies the influence of government controllable key factors on system stability. The combination of evolutionary game and SD in our study not only clearly reveals the complex and dynamic evolution process of game models under bounded rationality, but also provides a qualitative and quantitative simulation platform for analyzing the dynamic game process between government and power producers. The results show that: (1) There is no evolutionarily stable strategy (ESS) in the game system between government and power producers under CT, and the system evolution is characterized by periodicity; (2) When the government implements dynamic subsidies or punitive measures, the mixed strategy of the game system has ESS; (3) Reducing the unit subsidy and raising the unit fine can both promote the participation of power producers in CT, but the former increases the probability of government supervision; thus, it is best to increase the fines when the government makes strategic adjustments, followed by reducing subsidies.
- Published
- 2018
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9. Focus on the development of offshore wind power in China: Has the golden period come?
- Author
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Ling-zhi Ren and Xin-gang Zhao
- Subjects
Offshore wind power ,Government ,Engineering ,Wind power ,Renewable Energy, Sustainability and the Environment ,business.industry ,Order (exchange) ,Environmental resource management ,Period (geology) ,business ,China ,SWOT analysis ,Civil engineering - Abstract
In recent years, Chinese Government paid more attention to the exploitation of offshore wind power, and it became an important trend in the development of wind power industry. However, the development of offshore wind power in China was still in the initial stage. Compared with land-based wind power, the development of off-shore wind power had not only weaknesses and uncertainties, but also strengths and opportunities. In order to research the development of offshore wind power, this paper summarized the aspects on policy, market, technology and development planning of offshore wind power in China, and then adopted SWOT method to analyze the influencing factors, which impact on the development of China's offshore wind power. At last, this article analyzed the internal and external factors that affect the golden period of offshore wind power development, and drew a conclusion that the golden period of offshore wind power in China will come in the future, and most likely around 2020.
- Published
- 2015
10. Has the turning point of China׳s wind power industry really come?
- Author
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Xin-gang Zhao, Yu-ang Wei, and Ling-zhi Ren
- Subjects
Wind power ,Resource (biology) ,Renewable Energy, Sustainability and the Environment ,Status quo ,business.industry ,media_common.quotation_subject ,Oligopoly ,Market structure ,Market economy ,Economy ,Economic interventionism ,Economics ,Market share ,business ,China ,media_common - Abstract
China׳s wind power industry experienced rapid growth before 2009. However, the growing rate slowed down and the problem of wind curtailment was serious recent years. This paper focuses on the analysis of the turning point of China׳s wind power industry combing with life circle theory. With a panoramic view of status quo, based on the resource endowment, capacity development and future trends, we draw the following conclusions: (1) China׳s potential wind power reserves are still rich and the development of wind power industry will sustain growth for some period in the future. (2) As for market structure aspect, oligopolistic characteristic of China׳s wind power market is still obvious. The market share of China׳s wind power generation is not very high enough in the total generation market. (3) Turning point of China׳s wind power industry has not come yet and the slowing down of development speed at present is mainly caused by inappropriate government intervention. It is estimated the turning point of wind power industry will come around 2020.
- Published
- 2015
11. The turning point of solar photovoltaic industry in China: Will it come?
- Author
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Guan Wan, Xin-gang Zhao, and Yahui Yang
- Subjects
Government ,Engineering ,Renewable Energy, Sustainability and the Environment ,business.industry ,Photovoltaic system ,Domestic market ,Supply and demand ,Commerce ,Market economy ,Incentive ,Depression (economics) ,Production (economics) ,China ,business - Abstract
Influenced by the international environment, price of photovoltaic (PV) products has continued to drop in recent years. The production enthusiasm of manufacturers was affected, and the market was in depression at once. To realize the expansion of domestic market, China has implemented many incentives since early 2009. This paper reviews the present status and development trend of the Chinese PV industry. It focuses on the turning point problem and draws the conclusions: First, there are still some obstacles to overcome, the key ones are the too low PV product price, industry overcapacity, unbalanced industrial demand and supply, cutbacks in foreign PV market and uncompetitive technologies. Second, the turning point of PV industry in China will come in the future if the problems in PV industry can be solved and the large-scale of the industry can be achieved. Third, the Chinese government is gradually clearing up the obstacles of the development of PV industry, and the turning point is on the way, maybe not later than 2020. At the end of the paper, suggestions are offered as references for the government.
- Published
- 2015
12. Dilemma and Strategy of Biomass Power Generation Industry Development in China: A Perspective of Industry Chain
- Author
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Tian tian Feng and Xin gang Zhao
- Subjects
Engineering ,business.industry ,Technological change ,020209 energy ,media_common.quotation_subject ,Fossil fuel ,Biomass ,02 engineering and technology ,Environmental economics ,Biotechnology ,Scarcity ,Dilemma ,Electricity generation ,0202 electrical engineering, electronic engineering, information engineering ,Technology roadmap ,Electric power industry ,business ,media_common - Abstract
With the increasing scarcity of fossil fuel resources, the demand for greenhouse gas reduction and environmental protection all over the world, developing bioenergy becomes one of the most important energy strategies. This paper introduces the current development situation of biomass power industry, discusses the dilemmas of this industry’s development in a perspective of industry chain and gives recommendations. Then it proposes the development strategy including development objectives, technology roadmap, and the related policy guarantee measures for the biomass power industry. Finally, we get the conclusion that in the future, with scientific and technological progress, China’s biomass power industry will be rapidly developed with a bright prospect, and the cost will be further reduced.
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- 2017
13. Current situation and prospect of China׳s geothermal resources
- Author
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Guan Wan and Xin-gang Zhao
- Subjects
Engineering ,Resource (biology) ,Renewable Energy, Sustainability and the Environment ,Natural resource economics ,business.industry ,Status quo ,media_common.quotation_subject ,Geothermal energy ,Industrial policy ,Renewable energy ,Environmental protection ,Greenhouse gas ,business ,China ,Geothermal gradient ,media_common - Abstract
At present, countries around the world set off a round of upsurge of exploitation and utilization of geothermal energy. As one of renewable energy resources, geothermal energy has the advantages of great resource potential, low carbon emissions, widespread distribution, easy development and so on. China׳s geothermal resources are enormous and have huge potential for exploitation. However, due to the lack of reasonable industry planning and policies support, and lag of technologies, the industrial development speed and scale are far behind the wind, solar and biomass energy. The 12th Five-Year Plan for National Economic and Social Development of the People׳s Republic of China explicitly issues that in future China will vigorously develop the geothermal energy and provide more policy support for geothermal industry development from medium to longer term. This paper describes China׳s geothermal resource potential and status quo of geothermal industry, and analyzes the obstacles of the industry development. Then, it accordingly puts forward the development pattern of China׳s geothermal industry and gives out related countermeasures. At last, it outlines the prospects in this field.
- Published
- 2014
14. Focus on bioenergy industry development and energy security in China
- Author
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Xin-gang Zhao and Pingkuo Liu
- Subjects
Biodiesel ,Engineering ,Renewable Energy, Sustainability and the Environment ,business.industry ,Natural resource economics ,Fossil fuel ,Biomass ,Energy security ,Agricultural economics ,Biogas ,Bioenergy ,Electric power industry ,China ,business - Abstract
This paper focuses on the relationship between bioenergy industry and energy security. The situation of fuel ethanol, biodiesel, biogas and biomass power industry of China in recent years has been introduced comprehensively. With a quick look at the existing bioenergy industrial development policies, combined with China's energy security situation, we drew the following conclusions: (1) the bioenergy industry is an effective way to achieve China's energy security; (2) as for energy substitution from cost aspect, China has already had the ability to make bioenergy substitute for fossil fuels; (3) from technical aspect, however, China's bioenergy technologies are not mature, this means that in a very long period of time, biomass and fossil energy will jointly develop in a mutually beneficial way.
- Published
- 2014
15. Constructing the evaluation index system of auxiliary service of wind power based on the SEM
- Author
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Ling Wang, Lingzhi Ren, and Xin-gang Zhao
- Subjects
Engineering ,Service (systems architecture) ,Identification (information) ,Wind power ,Electricity generation ,Index system ,business.industry ,ComputerApplications_MISCELLANEOUS ,Related research ,business ,Automotive engineering ,Simulation ,Power (physics) - Abstract
With the rapid development of wind power, the conventional power auxiliary services have not met the requirements of wind power grid-connected power generation in full. In order to relieve the grid-connected and integration issues of wind power, wind power was put forward to participate in ancillary ser-vices on the basis of related research. Aiming at the feasibility problem of wind power auxiliary service, the paper builded the evaluation index system for wind power aux- iliary services firstly. Secondly, the article constructed the evaluation model of wind power auxiliary services based on structural equation model (SEM), and researched the identification and applica- tion of the SEM of wind power auxiliary services. Finally, the conclusion was presented.
- Published
- 2015
16. Focus on the Development of Energy Internet in China
- Author
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Lingzhi Ren, Xin-gang Zhao, and Ling Wang
- Subjects
Economic growth ,Engineering ,business.industry ,Status quo ,media_common.quotation_subject ,Environmental economics ,Energy engineering ,Renewable energy ,Energy conservation ,Development plan ,The Internet ,Internet in China ,Feed-in tariff ,business ,media_common - Abstract
Keyword: Energy Internet; Renewable energy; Energy power system. Abstract. In order to promote the large-scale use of distributed renewable energy and improve en- ergy efficiency, many countries started to pay close attention to the development of energy Internet. Europe, the United States, Japan and other developed countries has made some breakthrough in the field of energy Internet construction. The paper mainly analyzed and summarized the development of energy Internet. Some successful projects of energy Internet in the developed countries are intro- duced. And then the paper summarized the status quo and development plan of China's energy In- ternet. Finally, gave some conclusions for the paper. We held that China draw experience from the development of energy Internet in developed countries and find the development road for the con- struction of energy Internet according to practice of the nation
- Published
- 2015
17. Analysis on the industrial performance of wind power in China
- Author
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Xin-gang Zhao, Ling Wang, and Lingzhi Ren
- Subjects
Nameplate capacity ,Market economy ,Wind power ,business.industry ,Manufacturing ,Data envelopment analysis ,Market concentration ,business ,Domestic market ,Industrial organization ,Supply and demand ,Renewable energy - Abstract
In recent years, the growth rate of wind power in China installed capacity has tended to be sta-ble, and the competition among wind power equipment manufacturers has become increasingly fierce. In order to analyze the industrial performance of wind power in China, the paper summarized the status quo of China’s wind power, and then used the Data Envelopment Analysis (DEA) model to analyze the industrial performance of China’s wind power from 2010 to 2014. We found that: during the analysis period, the industrial performance of wind power equipment manufacturing was best in 2010. Due to fierce competition between wind turbines manufacturers, the industrial performance was in the declining trend in the next three years. By 2014, the performance increased again, but did not reach the best state. Besides, the technical efficiency has been better than scale efficiency. 1 INSTRUCTION With the adjustment of energy structure, the renewable energy, especially the wind power, was facing a historic opportunity for development in China. In recent years, wind power industry itself has been also in the state of constant adjustment. The scale of projects approval, equipment tendering and projects construction of the wind power all has bigger growth. Besides, the grid-connected and integration issues of China’s wind power were also alleviated, due to the construction of UHV grid and the implementation of interconnection policy and subsidies policy. Therefore, the installed capacity of wind power in China maintained a rapid growth. At present, the market concentration degree of wind power manufacturing industry in China has been in a downward trend, but it is still higher [Yuanxin Liu, 2015]. According to the new installed capacity situation, the domestic market shares of the top 20 wind turbine manufacturers were about 90%. Although the market demand of domestic wind power grew steadily, the competition between wind power manufacturers was still fierce, and the overcapacity problem of wind power industry was stall serious. Both fierce competition and overcapacity have important influence on the industrial efficiency, so it is significant to research on the industrial performance of China’s wind power. In recent years, large numbers of scholars researched the China’s wind power industry from different aspects, such as wind power price and policy [Ping Lu, 2013] [Ting-Ting Mi, 2012], development bottleneck [Zhao Dong, 2009] [Hua BAI, 2012], sustainable development [Zheng-ming WANG, 2008] [Weidong Shi, 2011]and wind power industry innovation [Yuanying CHI, 2008] [Jorrit Gosens, 2013]. The research literatures of China’s wind Power industry have been comprehensive. Based on the exiting research literatures, the paper adopted the DEA model to analyze the industrial performance of China’s wind power.
- Published
- 2015
18. Study on Cumulative Effect of R&D Investment Performance of Chinese Listed Companies – Empirical Analysis Based on Modified Cobb-Douglas Production Function
- Author
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Xin-gang Zhao
- Subjects
Finance ,business.industry ,media_common.quotation_subject ,Promotion effect ,Cobb–Douglas production function ,Stock exchange ,Econometrics ,Production (economics) ,Manufacturing firms ,Business ,Function (engineering) ,Investment performance ,Cumulative effect ,media_common - Abstract
These This paper selects 455 manufacturing firms in Shanghai and Shenzhen Stock Exchanges from 2007 to 2011 as study object, establishes a modified Cobb-Douglas production function, and empirically tests the cumulative effect of RD however, the promotion effect is not significant in 2011.
- Published
- 2013
19. A Study on the Know-How Value Assessment Model Based on Rough Set Theory
- Author
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Yao-min Yan, Xin-gang Zhao, and Shu-hai Wang
- Subjects
business.industry ,Dominance-based rough set approach ,Cost accounting ,Machine learning ,computer.software_genre ,Statistical classification ,Value assessment ,Rough set ,Artificial intelligence ,Set theory ,business ,computer ,Know-how ,Mathematics - Abstract
n/a
- Published
- 2009
20. A Quantity Analysis on Optimizing Corporation's Capital Structure
- Author
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Xin-gang Zhao and Yao-min Yan
- Subjects
Financial management ,Finance ,Financial capital ,Capital structure ,business.industry ,Cost of capital ,Economic capital ,Economics ,business ,Corporation ,Capital formation - Abstract
n/a
- Published
- 2009
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