An Analysis on Energy-Saving Generation Dispatch Considering Carbon Emission Limitation and the Development of New Energy Materials

2012 ◽  
Vol 577 ◽  
pp. 51-54
Author(s):  
Nan He ◽  
Zhong Fu Tan ◽  
Jian Qiang An
Keyword(s):  
Energy Saving ◽  
Carbon Emission ◽  
Unit Commitment ◽  
Thermal Power ◽  
Clean Energy ◽  
Offshore Wind ◽  
Energy Materials ◽  
Grid Connection ◽  
New Energy ◽  
Generation Dispatch

The development of new energy materials offers a solid foundation for the expansion of renewable and other clean energy such as onshore/offshore wind energy, solar energy, biomass and nuclear energy. With the rapid growth of the installed capacity of these clean energy types, it is urgent to further improve the generation dispatch mode to guarantee the grid connection. An energy-saving generation dispatch model is established to find out the optimal unit commitment of thermal power and other clean power, with a consideration of carbon emission limitation.

Study on CO2 Emission Constraint Based on New Energy Materials for Generation Permits Trade

2012 ◽  
Vol 577 ◽  
pp. 22-26
Author(s):  
Nan He ◽  
Zhong Fu Tan ◽  
Shu Xiang Wang ◽  
Yang Hou
Keyword(s):  
Unit Commitment ◽  
Positive Influence ◽  
Power Demand ◽  
Energy Materials ◽  
Allocation Model ◽  
Profit Allocation ◽  
Generation Cost ◽  
New Energy ◽  
Emission Limit ◽  
Generation Dispatch

Generation permits trade plays a key role in the economic generation dispatch. The application of new energy materials has a positive influence on the generation fuel mix, which offers cleaner power option for generation permits trade. An optimization model on generation permits trade is established to promote the development of renewable energy and the lowest generation cost of a certain unit commitment. Power demand, ramp-up limit, real power of a unit, new energy materials, and a certain emission limit are applied as the constraints of the model. The process of generation permits trade is a cooperative game. An optimized profit allocation model is also established using Shapley value to effectively allocate the profits among the units participating in the generation permits trade.

scholarly journals A Novel Four-Dimensional Energy-Saving and Emission-Reduction System and Its Linear Feedback Control

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Minggang Wang ◽  
Hua Xu
Keyword(s):  
Feedback Control ◽  
Energy Saving ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Equilibrium Points ◽  
Energy Development ◽  
Linear Feedback ◽  
Control Methods ◽  
Linear Feedback Control ◽  
New Energy

This paper reports a new four-dimensional energy-saving and emission-reduction chaotic system. The system is obtained in accordance with the complicated relationship between energy saving and emission reduction, carbon emission, economic growth, and new energy development. The dynamics behavior of the system will be analyzed by means of Lyapunov exponents and equilibrium points. Linear feedback control methods are used to suppress chaos to unstable equilibrium. Numerical simulations are presented to show these results.

scholarly journals How to Set the Proper CO2 Reduction Targets for the Provincial Building Sector of China?

2020 ◽  
Vol 12 (24) ◽  
pp. 10432
Author(s):  
Qingwei Shi ◽  
Hong Ren ◽  
Weiguang Cai ◽  
Jingxin Gao
Keyword(s):  
Energy Saving ◽  
Co2 Emissions ◽  
Carbon Emissions ◽  
Emission Reduction ◽  
Carbon Emission ◽  
National Level ◽  
Clean Energy ◽  
Energy Structure ◽  
Building Sector ◽  
Emission Abatement

The improvement of the energy and carbon emission efficiency of activities in the building sector is the key to China’s realization of the Paris Agreement. We can explore effective emission abatement approaches for the building sector by evaluating the carbon emissions and energy efficiency of construction activities, measuring the emission abatement potential of construction activities across the country and regions, and measuring the marginal abatement cost (MAC) of China and various regions. This study calculates the energy and carbon emissions performance of the building sector of 30 provinces and regions in China from 2005 to 2015, measures the dynamic changes in the energy-saving potential and carbon emission performance of the building sector, conducts relevant verification, and estimates the MAC of the building sector by using the slacks-based measure-directional distance function. The level of energy consumption per unit of the building sector of China has been decreasing yearly, but the energy structure has changed minimally (considering that clean energy is used). The total factor technical efficiency of the building sector of various provinces, cities, and regions is generally low, as verified in the evaluation of the energy-saving and emission abatement potential of the building sector of China. The energy saving and emission abatement of the building sector of China have great potential—that is, in approximately 50% of the total emissions of the building sector of China. In particular, Northeast and North China account for more than 50% of the total energy-saving and emission abatement potential. The study of the CO2 emissions and MAC of the building sector indicates that the larger the CO2 emissions are, the smaller MAC will be. The emission abatement efficiency is proportional to MAC. Based on this research, it can be more equitable and effective in formulating provincial emission reduction policy targets at the national level, and can maximize the contribution of the building sector of various provinces to the national carbon emission reduction.

scholarly journals Reliability Assessment of the Wind-solar-battery Storage System Based on Optimized Configuration

2018 ◽  
Vol 17 ◽  
pp. 01018
Author(s):  
Yuan Wang ◽  
Haojie Liu
Keyword(s):  
Wind Farm ◽  
Power Grid ◽  
Storage System ◽  
Thermal Power ◽  
Clean Energy ◽  
Optimal Scheduling ◽  
Battery Storage ◽  
Optimal Dispatch ◽  
New Energy ◽  
The Impact

In order to analyze the impact of new energy power generation on the power grid system, the reliability evaluation of the wind-solarbattery storage system is carried out. Proposed to wind power, solar, thermal power, different sodium-sulfur battery storage combined optimal dispatch of scenery. The shortest variance of the net load and the maximum variance of the wind storage system are taken as the objective function. The short-term optimal scheduling model of the power grid is established based on the characteristics of the wind farm, the characteristics of the solar field and the electric field of the sodium flow battery. Multi-objective particle swarm optimization The algorithm solves the model and obtains the output power of wind, light, storage and fire under different new energy strategies. The reliability is evaluated by Monte-Carlo method. Taking the IEEE-30 node as an example, it is proved that the proposed model is reasonable and the new energy can improve the clean energy consumption ability and minimize the impact on the power grid under the optimal scheduling strategy.

scholarly journals Unit Commitment Accommodating Large Scale Green Power

2019 ◽  
Vol 9 (8) ◽  
pp. 1611 ◽  
Author(s):  
Yuntao Ju ◽  
Jiankai Wang ◽  
Fuchao Ge ◽  
Yi Lin ◽  
Mingyu Dong ◽  
...  
Keyword(s):  
Wind Power ◽  
Nuclear Power ◽  
Large Scale ◽  
Unit Commitment ◽  
Thermal Power ◽  
Clean Energy ◽  
Reserve Capacity ◽  
Spinning Reserve ◽  
Peak Shaving ◽  
Generation Unit

As more clean energy sources contribute to the electrical grid, the stress on generation scheduling for peak-shaving increases. This is a concern in several provinces of China that have many nuclear power plants, such as Guangdong and Fujian. Studies on the unit commitment (UC) problem involving the characteristics of both wind and nuclear generation are urgently needed. This paper first describes a model of nuclear power and wind power for the UC problem, and then establishes an objective function for the total cost of nuclear and thermal power units, including the cost of fuel, start-stop and peak-shaving. The operating constraints of multiple generation unit types, the security constraints of the transmission line, and the influence of non-gauss wind power uncertainty on the spinning reserve capacity of the system are considered. Meanwhile, a model of an energy storage system (ESS) is introduced to smooth the wind power uncertainty. Due to the prediction error of wind power, the spinning reserve capacity of the system will be affected by the uncertainty. Over-provisioning of spinning reserve capacity is avoided by introducing chance constraints. This is followed by the design of a UC model applied to different power sources, such as nuclear power, thermal power, uncertain wind power, and ESS. Finally, the feasibility of the UC model in the scheduling of a multi-type generation unit is verified by the modified IEEE RTS 24-bus system accommodating large scale green generation units.

Analysis of Sewage Heat Energy Application in Guiyang

2010 ◽  
Vol 108-111 ◽  
pp. 562-567
Author(s):  
Qi Ming Zhao ◽  
An Zhu ◽  
Xiu Ya Jiang ◽  
Jian Long
Keyword(s):  
Energy Saving ◽  
Sewage Treatment ◽  
Clean Energy ◽  
Good Choice ◽  
Heat Energy ◽  
Pipe Network ◽  
Sewage Treatment Plants ◽  
New Energy ◽  
Atmosphere Temperature

Reclamation and application of sewage heat energy is a good choice for sustainable development and an effective mean of energy-saving and output-reducing. By analyzing the capacity, temperature and quality of sewage of Guiyang, we obtained the basic conditions for the application of sewage heat energy in Guiyang. The results showed that the sewage of Guiyang was resourceful, and have occurrence of large amount of cold (hot) energy. There was an obvious temperature difference between sewage temperature and atmosphere temperature. Sewage was lightly corrosive. The application conditions of sewage heat energy were suitable. Sewage heat is a clean energy which is easy to recycle. Three factors, including capacity, temperature and quality of sewage, are considered if sewage heat energy was applied. 3 factors of 10 sewage treatment plants and their subsidiary pipe network in Guiyang were monitored and analyzed to verify the application conditions of sewage heat energy in Guiyang. From the perspective of energy-saving and output-reducing, an effective way is explored to develop new energy sources in Guiyang[1,2].

Study on Energy Material Application in Changchu City for the Low-Carbon Economy Development

2012 ◽  
Vol 568 ◽  
pp. 269-272
Author(s):  
Xun Zhou Tong ◽  
Ting Liu ◽  
Hong Qin Liu ◽  
Hai Yan Duan ◽  
Xian En Wang
Keyword(s):  
Power Generation ◽  
Thermal Power ◽  
Industrial Process ◽  
Electric Power Industry ◽  
Low Carbon ◽  
Energy Materials ◽  
Low Carbon Economy ◽  
Energy Material ◽  
New Energy ◽  
Carbon Economy

As an old industrial base of the northeast, energy material application is Changchun’s necessary choice for the low-carbon economy development. Analysis shows that new energy materials should be applied to electric power industry. Replacing the thermal power generation mainly using coal by new energy materials power generation, energy consumption in thermal power and carbon emissions will be reduced. Second, with new energy materials applying to nonmetal mineral products and other industries, the consumption proportion of coal and fossil oil in the industrial process will be reduced.

scholarly journals Research on intelligent operation and maintenance management technology based on Microgrid group

2021 ◽  
Vol 329 ◽  
pp. 01077
Author(s):  
Wu Min
Keyword(s):  
Thermal Power ◽  
Clean Energy ◽  
Energy System ◽  
Maintenance Management ◽  
Internet Technology ◽  
Maintenance Cost ◽  
Operation And Maintenance ◽  
Tibet Autonomous Region ◽  
Management Technology ◽  
New Energy

In this paper, the research and platform development of cloud based microgrid cluster operation and maintenance management technology are carried out in Tibet, the solar thermal power combined microgrid system is built at decentralized load points, the data of each independent new energy system is integrated and shared by using Internet technology, and the unified operation, maintenance, monitoring and management of microgrid cluster are realized through the cloud platform, It can greatly improve the use efficiency of clean energy, improve the power supply quality and reliability of users, reduce the operation and maintenance cost, improve the work efficiency and system operation reliability, realize the intelligent monitoring, operation and maintenance and management of photovoltaic power generation and micro electric network group, and provide new operation and maintenance management methods and development ideas for the multi energy complementary and comprehensive utilization of Tibet Autonomous Region.

scholarly journals Energy-Saving Generation Dispatch Using Minimum Cost Flow

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Zhan’an Zhang ◽  
Xingguo Cai
Keyword(s):  
Objective Function ◽  
Energy Saving ◽  
Network Flow ◽  
Flow Problem ◽  
Thermal Power ◽  
Minimum Cost ◽  
Minimum Cost Flow ◽  
Output Constraints ◽  
Cost Flow ◽  
Generation Dispatch

This study uses a minimum cost flow method to solve a dispatch problem in order to minimize the consumption of coal in the dispatching of a thermal power system. Low-carbon generation dispatching is also considered here since the scheduling results are consistent with energy-saving generation dispatch. Additionally, this study employs minimum coal consumption as an objective function in considering the output constraints, load balance constraints, line loss, ramp rate limits, spinning reverse needs, prohibited operating zone requirements, security constraints, and other common constraints. The minimum cost flow problem, considering the loss of network flow, is known as a generalized network flow problem, which can be expressed as a quadratic programming problem in mathematics. Accordingly, the objective function was solved by LINGO11, which was used to calculate a network in a single time; a continuous period dispatch plan was obtained by accumulating each period network flow together. This analysis proves it feasible to solve a minimal cost flow problem with LINGO11. Theoretical analysis and numerical results prove the correctness and effectiveness of the proposed method.

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