Economic Dispatch between Distribution Grids and Virtual Power Plants under Voltage Security Constraints

Tiankai Yang, Jixiang Wang, Yongliang Liang, Chuan Xiang () and Chao Wang
Additional contact information
Tiankai Yang: College of Marine Electrical Engineering, Dalian Maritime University, Dalian 116026, China
Jixiang Wang: College of Marine Electrical Engineering, Dalian Maritime University, Dalian 116026, China
Yongliang Liang: School of Electrical Engineering, Shandong University, Jinan 250061, China
Chuan Xiang: College of Marine Electrical Engineering, Dalian Maritime University, Dalian 116026, China
Chao Wang: Electric Power Research Institute of State Grid Liaoning Electric Power Co., Ltd., Shenyang 110055, China

Energies, 2023, vol. 17, issue 1, 1-16

Abstract: Due to the high penetration of virtual power plants (VPPs), the bi-directional power flow between VPPs and active distribution grids makes the grid operation complex. Without congestion management, the operation schedule only considers the economic benefits, and power flow constraints might be violated. Hence, it is necessary to conduct power interaction within the operation constraints. This paper proposes a coordinated economic dispatch method under voltage security constraints. The linear expressions were derived by simplifying the AC power flow equations to reduce the computation complicity. Then, optimal economic dispatch models with voltage security constraints were established for the active distribution grid and VPPs, respectively. Meanwhile, the transacted power and clearing price were set as the communication variables, and a coordinated strategy was proposed for the overall optimal goal. The modified IEEE 33-node and PG&E-node distribution grids were utilized for the simulations, and the results affirmed the validity of the proposed method.

Keywords: active distribution grid; virtual power plants; economic dispatch; voltage security constraint; coordination method (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:

Downloads: (external link)
https://www.mdpi.com/1996-1073/17/1/117/pdf (application/pdf)
https://www.mdpi.com/1996-1073/17/1/117/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:17:y:2023:i:1:p:117-:d:1307059

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().