Automatic Control Technology in Smart Power Generation

2012 ◽  
Vol 546-547 ◽  
pp. 977-980
Author(s):  
Wei Zhang ◽  
Lei Li

Automation of power generation and its control process is inevitable trend and requirement. In construction of smart grid, clean energy is a significant indicator of smart grid, and energy conservation and emission reduction is a major research task. Automatic control technology in power generation especially in energy conservation and emission reduction is briefly introduced in the paper. In power plant, there are some problems to solve in desulphurization and water feeding, and the application of automatic control technology could solve or improve the problems in some degree.

2014 ◽  
Vol 525 ◽  
pp. 355-360
Author(s):  
Wei Zheng Kong ◽  
Bi Bin Huang ◽  
Qiong Hui Li ◽  
Xiao Lu Wang

In this paper, the change of fossil energy consumption, carbon dioxide (CO2) and pollutant emissions are calculated when petroleum based vehicles (PBVs) are taken place by EVs based upon the full-cycle energy efficiency theory with the energy efficiency measured from well to wheel.. Calculation results show that the fossil energy consumption, CO2, monoxide (CO) and hydrocarbon (HC) emissions can be reduced with the substitution of EVs for vehicles that burn gasoline (GVs), but nitrogen oxides (NOx) and sulfur dioxide (SO2) emissions increase. When vehicles that burn diesel (DVs) are replaced by EVs, the emissions of pollutants except SO2 will be reduced, but the emissions of CO2 and SO2 will increase. Considering the proportion of coal-fired power generation to the total power generation in China, the goal of energy conservation and emission reduction cannot be perfectly achieved by the substitution of PBVs by EVs. Therefore, the proportion of clean energy generation should be increased in China and technological updating of coal-fired power plants for reducing CO2 and pollutant emissions are necessary as well. Besides, GVs, other than DVs, should be replaced by EVs from the perspective of energy conservation and CO2 emission.


2013 ◽  
Vol 850-851 ◽  
pp. 338-341
Author(s):  
Jing Ren ◽  
Dong Dong Xu ◽  
Yi Ping Zhang

At present, resources and environment situation is not optimistic in our country, therefore, the 11th five-year plan outline points out "energy conservation and emissions reduction. The use of solar energy, wind energy, hydrogen and other clean energy power generation technology continues to advance, at the same time, the use of idle energy for power generation is increasing attention. When the car passes through the deceleration strip, it can make the idle energy into power, which is very much in line with the concept of energy saving and emission reduction. This article will introduce the present situation and development prospect of road deceleration strip to generate power.


2018 ◽  
Vol 12 (1) ◽  
pp. 215-229
Author(s):  
Chankook Park

Background: To understand the Electric Vehicle (EV) management effects deeply using Smart Grids (SGs) in the electric power sector, it is necessary to examine supply specifics such as the generation mix, generation costs, and CO2 emissions as well as the demand sector including peak load. This study attempts to comprehensively examine the changes in power supply and demand their effects in accordance with the degree of SG utilization, based on a scenario for the projection of EV roll-out in South Korea. Objectives: This study considers the change of the generation capacity mix as well as the change of power generation mix using the WASP model for the analysis of SG effects on EV management. In the scenario of the Korean government's EV deployment, this study has confirmed how electric power demand changes according to the degree of smart grid utilization. In addition, the WASP model has been used to examine not only the power generation mix but also the change in the installed capacity. Result: As a result, if the share of cost-effective and clean power generation sources is below the minimum load, the unit cost and CO2 emission could not be reduced together even though SGs are used to manage EVs. Conclusion: Increasing the share of power generation from clean energy sources to a level higher than that of the minimum load will allow EVs to become an eco-friendly means of transportation.


2013 ◽  
Vol 805-806 ◽  
pp. 1664-1667
Author(s):  
Yang Yang ◽  
Ru Tong Zhang

With the deterioration of the environment and energy crisis is becoming more and more serious, the development of low carbon industry has risen to national strategies. In the energy utilization and environmental effect, electric vehicle to the fuel vehicle has the advantages of energy saving and emission reduction prominent; the whole life cycle analysis, the electric vehicle complete life cycle into electric energy transmission cycle and vehicle life cycle of two parts; electric vehicle power battery as storage unit, strengthen the relationship between electric vehicle, new energy and smart grid among the three, promotes the development and application of clean energy, speed up the construction of smart grid, realize the real energy-saving and emission-reduction.


SAGE Open ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 215824402110613
Author(s):  
Rafiq Muhammad Aftab ◽  
Liguo Zhang ◽  
Chih-Chun Kung

Development of renewable energy is important to modern society because climate change induced from fossil use has resulted in severe and possibly irreversible environmental impacts such as sea level rise, desertification, diminished land productivity, and increased possibility of extreme events. Therefore, the utilization of renewable and clean energy not only increases regional energy security but also alleviate the environmental risk. In this study, we employ the lifecycle assessment to examine the electricity generation from the use of municipal solid waste in China, and then investigate the emission reduction from this application. Different supply patterns of the wastes are also compared to make the results more robust. The results show that if recycled wastes are fully utilized, approximately 11,107 GWh can be generated, along with a profit of $1.2 billion from energy sales. In this case, the CO2 emission will reduce by 9.7 million metric tons. If the food waste is used in compositing and animal feed, the net power generation and emission reduction are about 8,216 GWh and 7.32 million metric tons, respectively. If additional 30% of recycled wastes are assumed to be utilized in their past use, the power generation, profit, and emission reduction will further decrease to 5,750 GWh, $697 million, and 5.12 metric tons, respectively. The results point out that the utilization of recycled wastes can effectively reduce the reliance on fossil fuels, improve energy security, and increase social welfare. Insights of the results and policy implications are also discussed in detail.


2011 ◽  
Vol 347-353 ◽  
pp. 1791-1796
Author(s):  
Hong Fu Xie ◽  
Ke Zhang ◽  
Xiao Wang ◽  
Yu Wang

The distributed power generation technology which is represented by solar photovoltaic power generation has been recognized for having the enormous advantages such as energy conservation and emission reduction, improving the reliability and flexibility of power system. In this paper, the research of photovoltaic dc system is used in 110 kV Zhegao substation in Chaohu Anhui province. The system is the first set of substation photovoltaic dc system in Anhui province. It has being operated for three years safety and steady. The whole application of the system is advanced and groundbreaking in the domestic.


2012 ◽  
Vol 424-425 ◽  
pp. 852-856
Author(s):  
Jian Min Sun ◽  
Chun Dong Zhang

In building, the energy consumption of heating, ventilation and air conditioning (HVAC) is the largest, which accounts for forty to sixty percent of the total building consumption. So it is a key research to reduce the energy consumption of the HVAC system for saving building energy. This article describes a variety of energy conservation equipment of HVAC, and describes in detail the principles of each type of equipment. This article also analyzes the growing advanced control technologies for the HVAC system. In conclusion, HVAC equipment is developing in the direction of clean energy and energy efficient; intelligent control technology is more applicable to the varying parameters of complex system such as air conditioning, is more energy conservation and will become the leading direction of research and application


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