Stability analysis of networked control in smart grids

Singh, Abhinav Kumar and Singh, Ravindra and Pal, Bikash C. (2015) Stability analysis of networked control in smart grids. In: Power & Energy Society General Meeting, 2015 IEEE, 26 - 30 July 2015, Denver, CO, USA.

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Item Type:Conference or Workshop contribution (Other)
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Abstract

A suitable networked control scheme and its stability analysis framework have been developed for controlling inherent electromechanical oscillatory dynamics observed in power systems. It is assumed that the feedback signals are obtained at locations away from the controller/actuator and transmitted over a communication network with the help of phasor measurement units (PMUs). Within the generic framework of networked control system (NCS), the evolution of power system dynamics and associated control actions through a communication network have been modeled as a hybrid system. The data delivery rate has been modeled as a stochastic process. The closed-loop stability analysis framework has considered the limiting probability of data dropout in computing the stability margin. The contribution is in quantifying allowable data-dropout limit for a specified closed loop performance. The research findings are useful in specifying the requirement of communication infrastructure and protocol for operating future smart grids.

Keywords:Stability analysis, Smart grids, Power system dynamics, Power system stability, Communication networks, Phasor measurement units, Computational modeling
Subjects:H Engineering > H660 Control Systems
H Engineering > H631 Electrical Power Generation
H Engineering > H630 Electrical Power
G Mathematical and Computer Sciences > G420 Networks and Communications
Divisions:College of Science > School of Engineering
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ID Code:28774
Deposited On:02 Oct 2017 13:57

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