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Phaser measurement units (PMUs) provide synchronized measurements of voltage and current phasors and can make state estimation more accurate. The objective of optimal PMU placement (OPP) problem is to minimize the number of PMUs required for the system to be completely observable. This paper presents two different formulations of optimal PMU placement (OPP) problem: mixed integer linear programming...
In this paper, we reviewed several forms of alternating direction method of multipliers (ADMM) for distributed power system computing. The major focus is on ADMM based distributed parallel optimization algorithm which is feasible to be implemented in power network. Firstly, we introduced the general form of ADMM, and extend the 2-block ADMM to N-block multi-block ADMM. Next, we focus on two distributed...
This paper reviews robust feedback control applications in power system. Robust control concept in power system control area evolves by the way of uncertainty modeling. Uncertainties can be caused by variation of loading, load parameters, network topology and machine parameters. One direct way to take into consideration of uncertainties is to enumerate various system operating conditions and use a...
With phasor measurement units (PMU) installed in power systems, synchronized measurements are now available in real time. These global measurements can be utilized to develop real time visualization and system monitoring tools. The characteristic ellipsoid (or minimum volume enclosing ellipsoid (MVEE)) method is one such recently proposed tool for identification of system disturbances.This paper examines:...
With the penetration of wind power being higher and higher in power systems, the impact of wind turbine generation on inter-area oscillations should be fully investigated. This paper discusses the impact of a doubly fed wind turbine induction generator on the inter-area oscillation in a two-area four-machine system. Models of an induction generator and converter/inverter control loops developed by...
A method is proposed to identify an effective local signal that can be used by a thyristor controlled series compensation (TCSC) device as a supplementary controller to dampen inter-area oscillations for multiple power system operating conditions. Two residue-based indices are developed for this purpose. The first index is to identify the most effective signal to feedback for different operating conditions,...
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