scholarly journals Multi-objectives combined electric heating dispatch model of wind power accommodation with heat storage device

2017 ◽  
Vol 2017 (13) ◽  
pp. 1539-1545 ◽  
Author(s):  
Xiaodan Wang ◽  
Hong Li
Keyword(s):  
Wind Power ◽  
Heat Storage ◽  
Electric Heating ◽  
Storage Device

scholarly journals Economic analysis of wind power consumption promoted by regenerative electric heating with high proportion of renewable energy

2021 ◽  
Vol 271 ◽  
pp. 01021
Author(s):  
Wang Zhenyu ◽  
Zhang Jianhua ◽  
Shao Chong ◽  
Xu Lanlan ◽  
Han Yongjun
Keyword(s):  
Renewable Energy ◽  
Economic Analysis ◽  
Power Consumption ◽  
Wind Power ◽  
Heat Storage ◽  
Rapid Development ◽  
Electric Heating ◽  
Limit Problem ◽  
Heating Equipment ◽  
Power Limit

With the rapid development of wind power, the randomness and volatility of wind power have also caused severe problems of wind power consumption. The phenomenon of wind abandonment is particularly prominent in the "three north" areas. The environmental protection and controllability of regenerative electric heating provide a way for wind absorption and abandonment. Therefore, this paper proposes a model to promote wind power consumption by using regenerative electric heating. Firstly, the principle and advantages of the heat storage electric heating equipment are described; secondly, the fine modeling of regenerative electric heating is carried out;then, the mode of using regenerative electric heating to promote wind power consumption is designed;finally, an example is given to analyze the wind power consumption effect and the revenue of load aggregators.Therefore, it is verified that this mode can effectively promote wind power consumption and reduce wind abandon generation, and provide reference for alleviating wind abandon and power limit problem.

scholarly journals Multi-Time Scale Optimization Scheduling Strategy for Combined Heat and Power System Based on Scenario Method

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1599
Author(s):  
Yunhai Zhou ◽  
Shengkai Guo ◽  
Fei Xu ◽  
Dai Cui ◽  
Weichun Ge ◽  
...  
Keyword(s):  
Power System ◽  
Wind Power ◽  
Time Scale ◽  
Heat Storage ◽  
Combined Heat And Power ◽  
Storage Device ◽  
Power Fluctuation ◽  
Scheduling Strategy ◽  
Scenario Method ◽  
Optimization Scheduling

The wind–heat conflict and wind power uncertainty are the main factors leading to the phenomenon of wind curtailment during the heating period in the northern region of China. In this paper, a multi-time scale optimal scheduling strategy for combined heat and power system is proposed. Considering the temporal dependence of wind power fluctuation, the intra-day wind power scenario generation method is put forward, and both day-ahead and intra-day optimization scheduling models based on the scenario method are established to maximize the system’s revenue. The case analyzes the impacts of the initial heat storage capacity of a heat storage device and different scheduling strategies on system revenue. It is verified that the scheduling strategy can better adapt to wind power uncertainty and improve the absorption capacity of wind power, while ensuring the safety and economical efficiency of system operation.

scholarly journals The evaluation of the thermal storage electric heating load adjustability

2021 ◽  
Vol 271 ◽  
pp. 01028
Author(s):  
Lu Jing ◽  
Li Suxiu ◽  
Kong Weizheng
Keyword(s):  
Heat Storage ◽  
Evaluation Model ◽  
Electric Heating ◽  
Thermal Storage ◽  
Storage Device ◽  
Pollution Problem ◽  
Environmental Pollution Problem ◽  
Building Characteristics ◽  
Building Heat ◽  
Indoor Comfort

In recent years, in order to solve the environmental pollution problem caused by coal-fired heating in the heating area of north of china, electric heating has received extensive attention and has gradually been developed vigorously. Considering the building characteristics, outdoor temperature, indoor comfort and other factors, the building heat load adjustability model is established, and the heat storage device's load adjustability model considering the current operating status and heat storage capacity of the heat storage device is established, and the two are added together An evaluation model of the adjustability of regenerative electric heating users' load is obtained. This model not only considers the user comfort and the adjustment potential of the building where it is located, but also considers the adjustment potential of the heat storage device, which can more comprehensively and accurately evaluate the user load adjustment potential of thermal storage electric heating.

scholarly journals Research on large-scale wind power utilization technology based on energy storage

2019 ◽  
Vol 107 ◽  
pp. 02009
Author(s):  
Xiaochen Zhang ◽  
Wei Du ◽  
Jinzhou Fu ◽  
Dongmei Yang ◽  
Yonghua Chen
Keyword(s):  
Linear Programming ◽  
Energy Storage ◽  
Wind Power ◽  
Large Scale ◽  
Heat Storage ◽  
Storage Device ◽  
Pipe Network ◽  
Electricity Storage ◽  
Scheduling Model ◽  
Simulation Results

To improve the wind power utilization, methods of adding electricity storage device, adding heat storage device, treating the heat pipe network as a heat storage device are proposed. Firstly, the characteristics of cogeneration, electricity storage and heat storage equipment are analyzed. Secondly, the objective function of thermoelectric system is constructed. Meanwhile, system constraints are also introduced. Then, the scheduling model is transformed into a linear programming problem and solved with CPLEX toolbox. Finally, a typical cogeneration case is established to test the effectiveness of the proposed methods. The simulation results show that all these methods can effectively improve the amount of wind power utilization.

Abandoning Peat in a City District Heat System with Wind Power, Heat Pumps, and Heat Storage

2021 ◽  
Author(s):  
Nima Javanshir ◽  
Sanna Syri ◽  
Antti Teräsvirta ◽  
Ville Olkkonen
Keyword(s):  
Wind Power ◽  
Heat Storage ◽  
Heat Pumps ◽  
Heat System ◽  
City District

Thermal Conductivity Enhancement in a Latent Heat Storage Device

2013 ◽  
Vol 860-863 ◽  
pp. 590-593
Author(s):  
Cha Xiu Guo ◽  
Ding Bao Wang ◽  
Gao Lin Hu
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Solid State ◽  
Liquid Phase ◽  
Phase Change ◽  
Latent Heat ◽  
Heat Storage ◽  
Storage Device ◽  
Latent Heat Storage ◽  
Conductivity Enhancement

High conductivity porosity materials are proposed to enhance the phase change materials (PCM) in order to solve the problem of low conductivity of PCM in the latent heat storage device (LHSD), and two-dimensional numerical simulation is conducted to predict the performance of the PCM by CFD software. During the phase change process, the PCM is heated from the solid state to the liquid phase in the process of melting and from the liquid phase to the solid state in the solidification process. The results show that porosity materials can improve heat transfer rate effectively, but the effect of heat transfer of Al foam is superior to that of graphite foam although the heat storage capacity is almost the same for both. The heat transfer is enhanced and the solidification time of PCM is decreased since the effective thermal conductivity of composite PCM is increased.

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