Abstract
The node marginal electricity price in the spot market is uncertain and volatile, so it is important to strengthen analysis of the spot market's electricity price law and identify the major factors influencing locational marginal price of unit nodes. This will help market participants understand market laws in-depth and enable them to make better market decisions. In this paper, a new node electricity price decomposition method is introduced to quantitatively analyze and study the influencing factors of locational marginal price of unit nodes. Firstly, the formula of the relationship between locational marginal price and the shadow prices of unit operating constraints and system reserve constraints is deduced considering the system reserve. Secondly, the influence of unit’s upper and lower power constraints on locational marginal price, system power price and congestion price are analyzed. An analysis tool for the formation and influencing factors of the locational marginal price is provided, and it is helpful for market participants to make a referential assessment of the impact of their own unit’s physical parameters on earnings. Finally, based on a 5-node case study, the influence of unit output and quotation on the locational marginal price and system energy price are analyzed in different case studies.
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Acknowledgements
This work is supported by Science and Technology Project of State Grid Corporation of China (Study on a study of the renewable energy carrying capacity of receiving-end power grid considering the multi spatial-temporal distribution characteristics of renewable energy, 5100-202256018A-1-1-ZN).
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Liu, D., Li, F., Sun, K., Liang, H., Zhang, K., **ng, Y. (2023). Analysis of the Impact of Unit Output and Quotation on Locational Marginal Price of Unit Nodes. In: Gaber, H. (eds) Proceedings of the 5th International Conference on Clean Energy and Electrical Systems. CEES 2023. Lecture Notes in Electrical Engineering, vol 1058. Springer, Singapore. https://doi.org/10.1007/978-981-99-3888-9_12
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DOI: https://doi.org/10.1007/978-981-99-3888-9_12
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