Assessment of the Distributed Generation Hosting Capacity Incorporating Harmonic Distortion Limits

• Type: Article in International Conference Proceedings Book
• Date: 2018

Authors

Carlos A. N. Pereira (Author) Other; João A. Peças Lopes (Author) FEUP; Manuel A. C. C. Matos (Author) FEUP

Conference proceedings International

Title: 2018 International Conference on Smart Energy Systems and Technologies, SEST 2018 - Proceedings

Pages: 1-6

2018 International Conference on Smart Energy Systems and Technologies, SEST 2018

10 September 2018 through 12 September 2018

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 6 Citations

INSPEC

Other information

Authenticus ID: P-00P-W7V

DOI: 10.1109/sest.2018.8495843

Abstract (EN): The amount of distributed generation (DG) the network can host depends on a number of parameters such as the characteristics of the generation units and their daily generation profiles, the characteristics of the network and its configuration, the hourly load profiles as well as national and regional grid code requirements. The high penetration of renewable energy sources (RES) in the distribution networks (DN), namely in medium voltage (MV) grids, may lead to reverse active power flows, to voltage rises and to an increase in voltage distortion due to the large use of power-electronic converters as generation interfaces with the grid, which may limit the hosting capacity (HC) of RES. This paper is intended to describe a new approach for identifying the HC for the integration of RES in electrical distribution systems. This is a planning tool based on the multi-period optimal power flow (MP-OPF) which aims to maximize the HC for DG under thermal and voltage constraints, involving also the verification of the harmonic voltage distortion via a set of current harmonic flow calculations, following a known current harmonic injection profile for each DG unit to be connected on grid. The case study shows that harmonic distortion limits may have substantial impacts on the allowable penetration of DG, for instance, due of the characteristics of DN and its configuration, the hourly load and generation profiles.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6