Modeling and Case Study for Regional Power Grid Operation with Variety of Power Plants

2012 ◽  
Author(s):  
Dan Gao ◽  
Dongfang Jiang ◽  
Hui Fan ◽  
Sangao Hu ◽  
Pei Liu ◽  
...  
Keyword(s):  
Power Plants ◽  
Power Grid ◽  
Regional Power ◽  
Grid Operation

scholarly journals Optimal Control Strategy of Platform Load Oriented to Network and Load Cooperation

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Xuesong Shao ◽  
Gaoying Cui ◽  
Xiao Chen ◽  
Xinrong Ji ◽  
Yongxian Yi
Keyword(s):  
Demand Response ◽  
Power Grid ◽  
Peak Load ◽  
Regional Power ◽  
Active Response ◽  
Response Characteristics ◽  
Flexible Loads ◽  
Flexible Load ◽  
Resource Characteristics ◽  
Grid Operation

In recent years, with the continuous growth of China’s power peak load and the rapid development of renewable energy, a large number of renewable energy sources are connected to the power grid, increasing the uncertainty of power grid operation and posing new major challenges to the power system regulation capacity. Flexible load has the characteristics of wide distribution, fast response, and high economy, which is an important control resource for the future power system. Based on the flexible load of commercial buildings and residential users, this paper studies the resource characteristics and response characteristics, clarifies the resource characteristics and demand response characteristic indexes of commercial and residential users, and establishes the response characteristics model of commercial buildings and residential users. Considering the influence of weather, holidays, incentive mechanism, and other factors on the response of flexible load, the quantitative analysis method of flexible load resource regulation potential for regional power grid dispatching was studied, and the feasibility of flexible load resources directly participating in the load control system was analyzed. Based on the uncertainty and mathematical characterization method of the active response of flexible loads, the optimal combination control strategy of demand response resources was proposed to eliminate the problems of heavy load and overload of regional power grid equipment by using the active response ability of flexible loads. Finally, the IEEE 14-node system is selected for simulation verification, which provides a theoretical basis for alleviating the power grid operation pressure in the peak load period of the power grid in the urban core area, improving the safety and economic operation level of regional power grid dispatching and the utilization rate of power grid equipment assets.

scholarly journals A Systematic Multi-Time Scale Solution for Regional Power Grid Operation

2017 ◽  
Vol 86 ◽  
pp. 012031
Author(s):  
W J Zhu ◽  
Z G Liu ◽  
T Cheng ◽  
B Q Hu ◽  
X Z Liu ◽  
...  
Keyword(s):  
Time Scale ◽  
Power Grid ◽  
Regional Power ◽  
Grid Operation

scholarly journals Optimization of energy storage and system flexibility in the context of the energy transition: Germany’s power grid as a case study

BMC Energy ◽  
2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Leonardo K. K. Maia ◽  
Edwin Zondervan
Keyword(s):  
Mathematical Modeling ◽  
Renewable Energy ◽  
Power Plants ◽  
Large Scale ◽  
Power Grid ◽  
Electricity Consumption ◽  
Lithium Ion ◽  
Energy Transition ◽  
Phase Out

AbstractIn this work we explore the ramifications of incoming changes brought by the energy transition, most notably the increased penetration of variable renewable energy (VRE) and phase-out of nuclear and other conventional electricity sources. The power grid will require additional flexibility capabilities to accommodate such changes, as the mismatch between generation and demand is bound to increase. Through mathematical modeling and optimization, we simulate the German power grid and investigate the requirements of on-grid large-scale storage. Different scenarios are evaluated up to 2050, when 80% of the gross electricity consumption is planned to be provided by renewable energy. Dispatchable power plants will play a key role in the transition to an energy mix with high shares of VRE. Around 120 GW of additional large-scale storage are required until 2050. Between the electrochemical technologies evaluated, lithium-ion was the best candidate. A strong reliance on dispatchables was observed, in case the commissioning of VRE plants goes slower than planned. Energy curtailment increases with VRE shares, with up to 14 TWh curtailed in high VRE scenarios in 2050.

Research on Voltage Coordinated Control of the Power Plants Connected

2013 ◽  
Vol 846-847 ◽  
pp. 297-300
Author(s):  
Min Xue ◽  
Hui Ping Zheng ◽  
Shu Yong Song ◽  
Chong Zhi Yin ◽  
Wei Wen Duan
Keyword(s):  
Power Plant ◽  
Power System ◽  
Power Plants ◽  
Reactive Power ◽  
Power Grid ◽  
Voltage Control ◽  
Coordinated Control ◽  
Grid Operation

According to coupling phenomenon of reactive power when a power plant is connected to another power plant, reactive power can not be to achieve a reasonable distribution of each power plant,which causes the problem of voltage control. This paper describes the methods of adjusting the parameters of automatic voltage control (AVC) to realize the coordinated control between power plants connected, which makes the voltage of power system to meet the demand of power grid operation.

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