scholarly journals Partitioning Power Grid for the Design of the Zonal Energy Market while Preserving Control Area Constraints

Electronics ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 610
Author(s):  
Marcin Blachnik ◽  
Karol Wawrzyniak ◽  
Marcin Jakubek
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Power Grid ◽  
Flow Analysis ◽  
Control Area ◽  
Energy Market ◽  
Agglomerative Clustering ◽  
Grid Security ◽  
Marginal Prices ◽  
Locational Marginal Prices

The use of a zonal structure for energy markets across the globe is expanding; however the debate on how to effectively partition the grid into bidding zones is still open for discussion. One of the factors that needs to be addressed in the process of bidding zones’ delimitation is the transmission system operators control areas. Merging parts of different control areas into one bidding zone can lead to multiple problems, ranging from political, through grid security concerns, to reserve control issues. To address it, this paper presents a novel grid partitioning method aimed at bidding zones delimitation that is based on clustering the power grid using an extended version of the standard agglomerative clustering. The proposed solution adds additional clustering rules when constructing the dendrogram in order to take into account the control areas. The algorithm is applied to the data which represents the locational marginal prices obtained from optimal power flow analysis.

scholarly journals A United Method for Sensitivity Analysis of the Locational Marginal Price Based on the Optimal Power Flow

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Liu Yang ◽  
Chunlin Deng
Keyword(s):  
Electricity Market ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Electric Energy ◽  
Energy System ◽  
Equation System ◽  
Ncp Function ◽  
Optimal Power ◽  
Marginal Prices ◽  
Locational Marginal Prices

Locational marginal prices (LMPs) are influenced by various factors in the electricity market; knowing the sensitivity information of LMPs is very important for both the purchase and the consumer. This paper presents a united method to compute the sensitivities of LMPs based on the optimal power flow (OPF). The Karush-Kuhn-Tucher (KKT) system to solve LMPs can be transferred into an equation system by using an NCP function, and then by using the properties of the derivative of the semismooth NCP function, this paper provides a simultaneous obtention of the sensitivities of LMPs with respect to power demands, the cost of production, voltage boundary, and so forth. Numerical examples illustrate the concepts presented and the proposed methodology by a 6-bus electric energy system. Some relevant conclusions are drawn in the end.

scholarly journals Decentralized Prosumer-Centric P2P Electricity Market Coordination with Grid Security

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4665
Author(s):  
Duarte Kazacos Winter ◽  
Rahul Khatri ◽  
Michael Schmidt
Keyword(s):  
Electricity Markets ◽  
Electricity Market ◽  
Power Flow ◽  
Power Plants ◽  
Optimal Power Flow ◽  
Free Market ◽  
Economic Value ◽  
New Paradigm ◽  
Grid Security ◽  
Virtual Power Plants

The increasing number of prosumers and the accompanying greater use of decentralised energy resources (DERs) bring new opportunities and challenges for the traditional electricity systems and the electricity markets. Microgrids, virtual power plants (VPPs), peer-to-peer (P2P) trading and federated power plants (FPPs) propose different schemes for prosumer coordination and have the potential of becoming the new paradigm of electricity market and power system operation. This paper proposes a P2P trading scheme for energy communities that negotiates power flows between participating prosumers with insufficient renewable power supply and prosumers with surplus supply in such a way that the community welfare is maximized while avoiding critical grid conditions. For this purpose, the proposed scheme is based on an Optimal Power Flow (OPF) problem with a Multi-Bilateral Economic Dispatch (MBED) formulation as an objective function. The solution is realized in a fully decentralized manner on the basis of the Relaxed Consensus + Innovations (RCI) algorithm. Network security is ensured by a tariff-based system organized by a network agent that makes use of product differentiation capabilities of the RCI algorithm. It is found that the proposed mechanism accurately finds and prevents hazardous network operations, such as over-voltage in grid buses, while successfully providing economic value to prosumers’ renewable generation within the scope of a P2P, free market.

scholarly journals Probabilistic Optimal Power Flow Analysis with Undetermined Loads

2012 ◽  
Vol 2 (3) ◽  
pp. 321-325 ◽  
Author(s):  
Byuk-keun Jo ◽  
Jong-Hoon Han ◽  
Qinglei Guo ◽  
Gilsoo Jang
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Flow Analysis ◽  
Power Flow Analysis ◽  
Optimal Power

Optimal power flow analysis using Lévy flight spider monkey optimisation algorithm

2016 ◽  
Vol 5 (4) ◽  
pp. 320 ◽  
Author(s):  
Ajay Sharma ◽  
Harish Sharma ◽  
Annapurna Bhargava ◽  
Nirmala Sharma ◽  
Jagdish Chand Bansal
Keyword(s):  
Power Flow ◽  
Optimal Power Flow ◽  
Flow Analysis ◽  
Spider Monkey ◽  
Lévy Flight ◽  
Levy Flight ◽  
Power Flow Analysis ◽  
Optimisation Algorithm ◽  
Optimal Power
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