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Volume 16
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10.3390/en16176323
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Article

A Power External Transmission Strategy for Regional Power Grids Considering Internal Flexibility Supply and Demand Balance

by
Sile Hu
1,2,
Yucan Zhao
1,
Xiangwei Guo
2,
Zhenmin Zhang
3,
Wenbin Cai
3,
Linfeng Cao
1 and
Jiaqiang Yang
1,*
1
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
2
Inner Mongolia Power (Group) Co., Ltd., Hohhot 010020, China
3
Inner Mongolia Electric Power Economic and Technical Research Institute, Hohhot 010020, China
*
Author to whom correspondence should be addressed.
Energies 2023, 16(17), 6323; https://doi.org/10.3390/en16176323
Submission received: 14 June 2023 / Revised: 31 July 2023 / Accepted: 6 August 2023 / Published: 31 August 2023
(This article belongs to the Section F: Electrical Engineering)
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Abstract

This paper provides an optimization strategy for flexible operation at the system level to guide the real-time flexible ramping of the power grid. Firstly, the concept of regional power grid flexibility is clarified, and the ramping factor is proposed as a flexibility metric. On this basis, taking the output priority of each node as the objective function and considering constraints such as line flow, power balance, and system flexibility, a mathematical model for regional power grid transmitting flexible power externally is proposed. Compared with the traditional models, this model focuses more on flexibility rather than economy. A case analysis based on the improved IEEE 30-Bus System verifies the feasibility and effectiveness of the proposed strategy and its advantages over the traditional models.
Keywords: flexible resources; flexibility metric; flexible ramping; regional power grid; power transmission; IEEE 30-Bus System flexible resources; flexibility metric; flexible ramping; regional power grid; power transmission; IEEE 30-Bus System

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MDPI and ACS Style

Hu, S.; Zhao, Y.; Guo, X.; Zhang, Z.; Cai, W.; Cao, L.; Yang, J. A Power External Transmission Strategy for Regional Power Grids Considering Internal Flexibility Supply and Demand Balance. Energies 2023, 16, 6323. https://doi.org/10.3390/en16176323

AMA Style

Hu S, Zhao Y, Guo X, Zhang Z, Cai W, Cao L, Yang J. A Power External Transmission Strategy for Regional Power Grids Considering Internal Flexibility Supply and Demand Balance. Energies. 2023; 16(17):6323. https://doi.org/10.3390/en16176323

Chicago/Turabian Style

Hu, Sile, Yucan Zhao, Xiangwei Guo, Zhenmin Zhang, Wenbin Cai, Linfeng Cao, and Jiaqiang Yang. 2023. "A Power External Transmission Strategy for Regional Power Grids Considering Internal Flexibility Supply and Demand Balance" Energies 16, no. 17: 6323. https://doi.org/10.3390/en16176323

APA Style

Hu, S., Zhao, Y., Guo, X., Zhang, Z., Cai, W., Cao, L., & Yang, J. (2023). A Power External Transmission Strategy for Regional Power Grids Considering Internal Flexibility Supply and Demand Balance. Energies, 16(17), 6323. https://doi.org/10.3390/en16176323

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