Coordinated Dispatch Optimization between the Main Grid and Virtual Power Plants Based on Multi-Parametric Quadratic Programming

Guixing Yang, Mingze Xu, Weiqing Wang () and Shunbo Lei
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Guixing Yang: Xinjiang University, Urumchi 830000, China
Mingze Xu: The Chinese University of Hong Kong-Shenzhen, Shenzhen 518000, China
Weiqing Wang: Xinjiang University, Urumchi 830000, China
Shunbo Lei: The Chinese University of Hong Kong-Shenzhen, Shenzhen 518000, China

Energies, 2023, vol. 16, issue 15, 1-15

Abstract: Virtual power plants (VPPs) are a critical technology for distribution systems that can integrate various renewable energy resourcescontrollable loads and energy storage systems into one specific power plant through a distributed energy management system. This paper proposes a coordinated dispatch optimization model between the main grid and VPPs aiming to minimize both the power generation cost and total system active loss. When the time of the equivalent dispatching model is not divisible due to the existence of a time coupling constraint inside the VPPs, this model can obtain the global optimal solution through iteration between the main grid and the VPPs. By employing multi-parametric quadratic programming to obtain accurate critical domains and optimal cost functions, the convergence speed and stability are significantly improved. Additionally, a reactive power and voltage optimization technique leveraging the generalized Benders decomposition is presented for the coordination of the main grid and the VPPs. Moreover, the impact of distributed energy resource (DER) clusters on the main grid was studied, from which we proved that the proposed approach can expeditiously abate energy production expenditure and system active dissipation whilst enhancing the system equilibrium.

Keywords: virtual power plants; coordinated dispatch; multi-parametric quadratic programming; generalized Benders’ decomposition (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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