Development Path of Future Power Grid with High Proportion of Renewable Energy in the Context of Electricity Spot Market

2020 ◽  
Author(s):  
Bingquan Zhu ◽  
Xiang Zheng ◽  
Shaofei Shen ◽  
Yicheng Jiang ◽  
Zhi Zhang ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power Grid ◽  
Spot Market ◽  
Development Path ◽  
Electricity Spot Market

scholarly journals Optimization of electric heating operation based on day-ahead electricity spot market

2021 ◽  
Vol 256 ◽  
pp. 02012
Author(s):  
Chengyuan Li ◽  
Limin Jang ◽  
Yu Qin
Keyword(s):  
Control Function ◽  
Market Competition ◽  
Power Grid ◽  
Operating Cost ◽  
Electric Heating ◽  
Spot Market ◽  
Operation Strategy ◽  
Heating Equipment ◽  
Electricity Spot Market ◽  
The Impact

The emergence of Electricity Spot Market makes it possible that distributed electric heating equipment connect with the grid and participate in market competition as well. However, due to the functional limits, it is impossible for the power supply side to have a thorough understanding of the specific conditions of the load characteristics of the power user, and the user side will not take a global consideration of the real-time security and stability of the power grid. This paper focuses on the research about electricity consumption strategy of thermoelectric coupled load with the background of electricity spot market. The main works are as following: An operation strategy of consumer electric heating equipment based on electric spot market is proposed. Besides, an operation mode which responds to the market is obtained by analysing the time span of clearing nodes in power spot market and start-stop characteristics of distributed heat load equipment. Based on this, the operating cost control function of consumer electric heating load is designed, making it possible that the load follows changes of the clearing price under the premise of ensuring that the user’s heat demand is met within a day. Then we had a discussion about the impact of parameter changes on the operating strategy. With the help of the constraints of existing power grid, the operation strategy model of consumer electric heating equipment based on power spot market is realized.

scholarly journals Voltage Stability of Power Systems with Renewable-Energy Inverter-Based Generators: A Review

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 115
Author(s):  
Nasser Hosseinzadeh ◽  
Asma Aziz ◽  
Apel Mahmud ◽  
Ameen Gargoom ◽  
Mahbub Rabbani
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Voltage Stability ◽  
Reactive Power ◽  
Power Grid ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
System Stability ◽  
Special Issue ◽  
Synchronous Generators

The main purpose of developing microgrids (MGs) is to facilitate the integration of renewable energy sources (RESs) into the power grid. RESs are normally connected to the grid via power electronic inverters. As various types of RESs are increasingly being connected to the electrical power grid, power systems of the near future will have more inverter-based generators (IBGs) instead of synchronous machines. Since IBGs have significant differences in their characteristics compared to synchronous generators (SGs), particularly concerning their inertia and capability to provide reactive power, their impacts on the system dynamics are different compared to SGs. In particular, system stability analysis will require new approaches. As such, research is currently being conducted on the stability of power systems with the inclusion of IBGs. This review article is intended to be a preface to the Special Issue on Voltage Stability of Microgrids in Power Systems. It presents a comprehensive review of the literature on voltage stability of power systems with a relatively high percentage of IBGs in the generation mix of the system. As the research is developing rapidly in this field, it is understood that by the time that this article is published, and further in the future, there will be many more new developments in this area. Certainly, other articles in this special issue will highlight some other important aspects of the voltage stability of microgrids.

scholarly journals Analysis on the operation mechanism of spot mode adapting to the initial stage of China’s electricity spot market

2021 ◽  
Vol 687 (1) ◽  
pp. 012090
Author(s):  
Dunnan Liu ◽  
Tingting Zhang ◽  
Yuan Gao ◽  
Hua Li ◽  
Mingguang Liu ◽  
...  
Keyword(s):  
Spot Market ◽  
Operation Mechanism ◽  
Initial Stage ◽  
Electricity Spot Market
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