Work

An Adaptive Special Protection Scheme Coordinating Multiple Generation Units for Damping Power System Natural Oscillations

Year: 2024

Type: article

Abstract: This paper presents a special protection scheme (SPS) that mitigates natural oscillations in the power system by enabling selected adaptive power oscillation damping (APOD) controllers in wind farms or synchronous generators. The SPS activation is triggered by an online power oscillation detection algorithm. Furthermore, to tackle the intricacies of time delays within the control system, an adaptive time delay compensator (ATDC) has been integrated into the SPS control scheme. The SPS is tested on the New England 39 bus system by numerical simulations and in the Nordic 44 system by experimental testing with a hardware-in-the-loop approach. The numerical results show that the proposed SPS can increase the damping of low-frequency natural oscillations (LFOs) significantly and even avoid unstable situations with growing oscillations. Moreover, the laboratory validation demonstrates that the system is able to run in real-time and that the time delays caused by PMU measurements, communication, and computation can be handled correctly. Thus, the proposed SPS concept can possibly be implemented to serve as an additional and automatic tool for the system operators to damp natural power oscillations by coordinated control of multiple sources.

Source: IEEE Transactions on Power Delivery

DOI: 10.1109/tpwrd.2024.3489026

Authors: Tor Inge Reigstad, Salvatore D'Arco, Santiago Sanchez-Acevedo

Institutions: SINTEF, SINTEF Energy Research

Language: English

Topic: Power System Optimization and Stability

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: green

Funders: Energinet.dk, Norges Forskningsråd