An Adaptive Power Oscillation Damping Controller by STATCOM With Energy Storage
Journal article, 2015

This paper deals with the design of an adaptive power oscillation damping (POD) controller for a static synchronous compensator (STATCOM) equipped with energy storage. This is achieved using a signal estimation technique based on a modified recursive least square (RLS) algorithm, which allows a fast, selective, and adaptive estimation of the low-frequency electromechanical oscillations from locally measured signals during power system disturbances. The proposed method is effective in increasing the damping of the system at the frequencies of interest, also in the case of system parameter uncertainties and at various connection points of the compensator. First, the analysis of the impact of active and reactive power injection into the power system will be carried out using a simple two-machine system model. A control strategy that optimizes active and reactive power injection at various connection points of the STATCOM will be derived using the simplified model. Small-signal analysis of the dynamic performance of the proposed control strategy will be carried out. The effectiveness of the proposed control method to provide power oscillation damping irrespective of the connection point of the device and in the presence of system parameter uncertainties will be verified through simulation and experimental results.

static synchronous compensator (STATCOM)

Energy storage

power oscillation damping (POD)

low-frequency oscillation

recursive least square (RLS)

Author

Mebtu Bihonegn Beza

Chalmers, Energy and Environment, Electric Power Engineering

Massimo Bongiorno

Chalmers, Energy and Environment, Electric Power Engineering

IEEE Transactions on Power Systems

0885-8950 (ISSN)

Vol. 30 1 484-493

Driving Forces

Sustainable development

Areas of Advance

Energy

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TPWRS.2014.2320411

More information

Created

10/8/2017