A Practical Integration of Automatic Generation Control and Demand Response

For a power grid to operate properly, electrical frequency must be continuously maintained close to its nominal value. Increasing penetration of distributed generation, such as solar and wind generation, introduces fluctuations in active power while also reducing the natural inertial response of...

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Main Authors: Shiltz, Dylan, Annaswamy, Anuradha
Format: Preprint
Language:en_US
Published: 2015
Subjects:
Online Access:http://hdl.handle.net/1721.1/99356
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author Shiltz, Dylan
Annaswamy, Anuradha
author_facet Shiltz, Dylan
Annaswamy, Anuradha
author_sort Shiltz, Dylan
collection MIT
description For a power grid to operate properly, electrical frequency must be continuously maintained close to its nominal value. Increasing penetration of distributed generation, such as solar and wind generation, introduces fluctuations in active power while also reducing the natural inertial response of the electricity grid, creating reliability concerns. While frequency regulation has traditionally been achieved by controlling generators, the control of Demand Response resources has been recognized in recent smart grid literature as an efficient means for providing additional regulation capability. To this end, several control methodologies have been proposed recently, but various features of these proposals make their practical implementations difficult. In this paper, we propose a new control algorithm that facilitates optimal frequency regulation through direct control of both generators and Demand Response, while addressing several issues that prevent practical implementation of other proposals. In particular, i) our algorithm is ideal for control over a large, low-bandwidth network as communication and measurement is only required every 2 seconds, ii) it enables Demand Response resources to recover energy lost during system transients, and iii) it accommodates both measured disturbances and unmeasured disturbances. We demonstrate the viability of our approach through dynamic simulations on a 118-bus grid model.
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spelling mit-1721.1/993562019-04-12T12:03:23Z A Practical Integration of Automatic Generation Control and Demand Response Shiltz, Dylan Annaswamy, Anuradha Optimal AGC direct load control demand response frequency regulation For a power grid to operate properly, electrical frequency must be continuously maintained close to its nominal value. Increasing penetration of distributed generation, such as solar and wind generation, introduces fluctuations in active power while also reducing the natural inertial response of the electricity grid, creating reliability concerns. While frequency regulation has traditionally been achieved by controlling generators, the control of Demand Response resources has been recognized in recent smart grid literature as an efficient means for providing additional regulation capability. To this end, several control methodologies have been proposed recently, but various features of these proposals make their practical implementations difficult. In this paper, we propose a new control algorithm that facilitates optimal frequency regulation through direct control of both generators and Demand Response, while addressing several issues that prevent practical implementation of other proposals. In particular, i) our algorithm is ideal for control over a large, low-bandwidth network as communication and measurement is only required every 2 seconds, ii) it enables Demand Response resources to recover energy lost during system transients, and iii) it accommodates both measured disturbances and unmeasured disturbances. We demonstrate the viability of our approach through dynamic simulations on a 118-bus grid model. NSF initiative, Award no. EFRI-1441301 2015-10-16T19:30:38Z 2015-10-16T19:30:38Z 2015-10-16 Preprint http://hdl.handle.net/1721.1/99356 en_US IEEE ACC;2016 Attribution-NonCommercial-NoDerivs 3.0 United States http://creativecommons.org/licenses/by-nc-nd/3.0/us/ application/pdf
spellingShingle Optimal AGC
direct load control
demand response
frequency regulation
Shiltz, Dylan
Annaswamy, Anuradha
A Practical Integration of Automatic Generation Control and Demand Response
title A Practical Integration of Automatic Generation Control and Demand Response
title_full A Practical Integration of Automatic Generation Control and Demand Response
title_fullStr A Practical Integration of Automatic Generation Control and Demand Response
title_full_unstemmed A Practical Integration of Automatic Generation Control and Demand Response
title_short A Practical Integration of Automatic Generation Control and Demand Response
title_sort practical integration of automatic generation control and demand response
topic Optimal AGC
direct load control
demand response
frequency regulation
url http://hdl.handle.net/1721.1/99356
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