Dispatch Instruction Disaggregation for Virtual Power Plants Using Multi-Parametric Programming

Virtual power plants (VPPs) coordinate distributed energy resources (DERs) to collectively meet grid dispatch instructions. When a dispatch command is issued to a VPP, it must be disaggregated optimally among the individual DERs to minimize overall operational costs. However, existing methods for VP...

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Bibliographic Details
Published in:Energies (Basel) Vol. 18; no. 15; p. 4060
Main Authors: Zhang, Zhikai, Wei, Yanfang
Format: Journal Article
Language:English
Published: Basel MDPI AG 01.08.2025
Subjects:
Case studies
Costs
Decomposition
Electric power-plants
Energy management
instruction disaggregation
Linear programming
multi-parametric programming
Optimization techniques
Power plants
recursive critical region partitioning
Scheduling
ISSN:1996-1073, 1996-1073
Online Access:Get full text
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Summary:Virtual power plants (VPPs) coordinate distributed energy resources (DERs) to collectively meet grid dispatch instructions. When a dispatch command is issued to a VPP, it must be disaggregated optimally among the individual DERs to minimize overall operational costs. However, existing methods for VPP dispatch instruction disaggregation often require solving complex optimization problems for each instruction, posing challenges for real-time applications. To address this issue, we propose a multi-parametric programming-based method that yields an explicit mapping from any given dispatch instruction to an optimal DER-level deployment strategy. In our approach, a parametric optimization model is formulated to minimize the dispatch cost subject to DER operational constraints. By applying Karush–Kuhn–Tucker (KKT) conditions and recursively partitioning the DERs’ adjustable capacity space into critical regions, we derive analytical expressions that directly map dispatch instructions to their corresponding resource allocation strategies and optimal scheduling costs. This explicit solution eliminates the need to repeatedly solve the optimization problem for each new instruction, enabling fast real-time dispatch decisions. Case study results verify that the proposed method effectively achieves the cost-efficient and computationally efficient disaggregation of dispatch signals in a VPP, thereby improving its operational performance.
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ISSN:1996-1073
1996-1073
DOI:10.3390/en18154060