Work

Enlarged operational area of an Interline DC power Flow controller via adaptive droop control for Multi-Terminal HVDC systems

Year: 2024

Type: article

Abstract: The effective performance of Interline DC Power Flow Controllers (IDC-PFCs) in Modular Multilevel Converters (MMC)-based High Voltage Direct Current (HVDC) grids is restricted by 1) the current limitation of the HVDC cables/lines, 2) the HVDC buses' DC voltages and 3) the IDC-PFC capacitor's DC voltage limit. The pivotal remedy for this issue is to utilize an adaptive droop control for the MMCs that varies its droop gain to maximize the IDC-PFC operation range. In this paper, 3D curves of the IDC-PFC's important characteristics are used to assess the flexibility of the IDC-PFC control. By using this approach, a new degree of freedom for IDC-PFC controllability is achieved. The performance of the optimal-adaptive-droop-controlled strategy presented in this paper is validated using power flow studies. The results demonstrate that a wider operational area is conceivable for the IDC-PFC when this technique is applied as a combination of MMC converters' droop control and IDC-PFC duty cycle.

Source: International Journal of Electrical Power & Energy Systems

DOI: 10.1016/j.ijepes.2024.110430

Authors: Mirhamed Pourmirasghariyan, G.B Gharehpetian, Oriol Gomis-Bellmunt, David Campos-Gaona, Panagiotis N. Papadopoulos

Institutions: University of Strathclyde, Amirkabir University of Technology, Universitat Politècnica de Catalunya, University of Manchester

Language: English

Topic: HVDC Systems and Fault Protection

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Industry, innovation and infrastructure, Affordable and clean energy

Open Access status: gold

Estimated APC paid: $3,500