An adaptive-based control law for accurate frequency restoration and economic load dispatch in microgrid with clock drifts

This paper focuses on frequency regulation and the economic dispatch problems of microgrid primarily composed of multi energy resources. Due to different problems such as intermittency of renewable energy, unbalanced demand and supply, frequency fluctuation and so on in microgrid. These problems alt...

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Main Authors: Bin Liu, Yiwei Feng
Format: Article
Language:English
Published: Elsevier 2022-08-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484722005728
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author Bin Liu
Yiwei Feng
author_facet Bin Liu
Yiwei Feng
author_sort Bin Liu
collection DOAJ
description This paper focuses on frequency regulation and the economic dispatch problems of microgrid primarily composed of multi energy resources. Due to different problems such as intermittency of renewable energy, unbalanced demand and supply, frequency fluctuation and so on in microgrid. These problems alternative stability and disturbance rejection present challenges to the design of controllers and management algorithms for voltage, frequency and power in all possible execution scenarios. In this work, a novel adaptive generalized distributed averaging integral controller has been designed. Goals of the designed controller are to realize accurate steady-state frequency recovery in the circumstances of clock drifts, cope with the uncertainty by dynamically updating of the control parameters while maintaining system stability, exchange generating data of each generator by the communication channel and, realize the optimal power distribution among the generators. Moreover, we add an additional controller to the hierarchical control scheme to distribute the load economically, the algorithm based on consistency ensures the optimal load distribution. Finally, the effectiveness of the designed control scheme is verified by simulation comparing it with other related distributed control methods.
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spelling doaj.art-f9a09706ef67482d8e0621405b46c9042022-12-22T04:04:46ZengElsevierEnergy Reports2352-48472022-08-01813401348An adaptive-based control law for accurate frequency restoration and economic load dispatch in microgrid with clock driftsBin Liu0Yiwei Feng1College of Electrical and Information Engineering, LanZhou University of Technology, Lanzhou, ChinaCorresponding author.; College of Electrical and Information Engineering, LanZhou University of Technology, Lanzhou, ChinaThis paper focuses on frequency regulation and the economic dispatch problems of microgrid primarily composed of multi energy resources. Due to different problems such as intermittency of renewable energy, unbalanced demand and supply, frequency fluctuation and so on in microgrid. These problems alternative stability and disturbance rejection present challenges to the design of controllers and management algorithms for voltage, frequency and power in all possible execution scenarios. In this work, a novel adaptive generalized distributed averaging integral controller has been designed. Goals of the designed controller are to realize accurate steady-state frequency recovery in the circumstances of clock drifts, cope with the uncertainty by dynamically updating of the control parameters while maintaining system stability, exchange generating data of each generator by the communication channel and, realize the optimal power distribution among the generators. Moreover, we add an additional controller to the hierarchical control scheme to distribute the load economically, the algorithm based on consistency ensures the optimal load distribution. Finally, the effectiveness of the designed control scheme is verified by simulation comparing it with other related distributed control methods.http://www.sciencedirect.com/science/article/pii/S2352484722005728Adaptive controlDistributed controlClock driftsEconomic load dispatchMicrogrid
spellingShingle Bin Liu
Yiwei Feng
An adaptive-based control law for accurate frequency restoration and economic load dispatch in microgrid with clock drifts
Energy Reports
Adaptive control
Distributed control
Clock drifts
Economic load dispatch
Microgrid
title An adaptive-based control law for accurate frequency restoration and economic load dispatch in microgrid with clock drifts
title_full An adaptive-based control law for accurate frequency restoration and economic load dispatch in microgrid with clock drifts
title_fullStr An adaptive-based control law for accurate frequency restoration and economic load dispatch in microgrid with clock drifts
title_full_unstemmed An adaptive-based control law for accurate frequency restoration and economic load dispatch in microgrid with clock drifts
title_short An adaptive-based control law for accurate frequency restoration and economic load dispatch in microgrid with clock drifts
title_sort adaptive based control law for accurate frequency restoration and economic load dispatch in microgrid with clock drifts
topic Adaptive control
Distributed control
Clock drifts
Economic load dispatch
Microgrid
url http://www.sciencedirect.com/science/article/pii/S2352484722005728
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