Estimating the Active and Reactive Power Flexibility Area at the TSO-DSO Interface

• Type: Article in International Scientific Journal
• Date: 2018

Authors

João Silva (Author) Other; Jean Sumaili (Author) Other; Ricardo J. Bessa (Author) Other; Luís Seca (Author) Other; Manuel A. Matos (Author) FEUP; Vladimiro Miranda (Author) FEUP; Mathieu Caujolle (Author) Other; Belen Goncer (Author) Other; Maria Sebastian Viana (Author) Other

Journal

Title: IEEE Transactions on Power Systems

Vol. 33 No. 5

Pages: 4741-4750

ISSN: 0885-8950

Publisher: IEEE

Indexing

ISI Web of Knowledge - 166 Citations

Scopus

INSPEC

Other information

Authenticus ID: P-00P-J72

DOI: 10.1109/tpwrs.2018.2805765

Abstract (EN): The penetration of distributed renewable energy sources in the distribution grid is increasing considerably in the last years. This is one of the main causes that contributed to the growth of technical problems in both transmission and distribution systems. An effective solution to improve system security is to exploit the flexibility that can be provided by distributed energy resources (DER), which are mostly located at the distribution grids. Their location combined with the lack of power flow coordination at the system operators interface creates difficulties in taking advantage of these flexible resources. This paper presents a methodology based on the solution of a set of optimization problems that estimate the flexibility ranges at the distribution and transmission system operators (TSO-DSO) boundary nodes. The estimation is performed while considering the grid technical constraints and a maximum cost that the user is willing to pay. The novelty behind this approach comes from the development of flexibility cost maps, which allow the visualization of the impact of DER flexibility on the operating point at the TSO-DSO interface. The results are compared with a sampling method and suggest that a higher accuracy in the TSO-DSO information exchange process can be achieved through this approach.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10