Optimal Scheduling of a Microgrid Including Pump Scheduling and Network Constraints

This paper proposes an efficient energy management system (EMS) for industrial microgrids (MGs). Many industries deploy large pumps for their processes. Oftentimes, such pumps are operated during hours of peak electricity prices. A lot of industries use a mix of captive generation and imported utili...

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Main Authors: Ashok Krishnan, L. P. M. I. Sampath, Y. S. Foo Eddy, H. B. Gooi
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2018/9842025
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author Ashok Krishnan
L. P. M. I. Sampath
Y. S. Foo Eddy
H. B. Gooi
author_facet Ashok Krishnan
L. P. M. I. Sampath
Y. S. Foo Eddy
H. B. Gooi
author_sort Ashok Krishnan
collection DOAJ
description This paper proposes an efficient energy management system (EMS) for industrial microgrids (MGs). Many industries deploy large pumps for their processes. Oftentimes, such pumps are operated during hours of peak electricity prices. A lot of industries use a mix of captive generation and imported utility electricity to meet their energy requirements. The MG considered in this paper includes diesel generators, battery energy storage systems, renewable energy sources, flexible loads, and interruptible loads. Pump loads found in shipyard dry docks are modelled as exemplar flexible industrial loads. The proposed EMS has a two-stage architecture. An optimal MG scheduling problem including pump scheduling and curtailment of interruptible loads (ILs) is formulated and solved in the first stage. An optimal power flow problem is solved in the second stage to verify the feasibility of the MG schedule with the network constraints. An iterative procedure is used to coordinate the two EMS stages. Multiple case studies are used to demonstrate the utility of the proposed EMS. The case studies highlight the efficacy of load management strategies such as pump scheduling and curtailment of ILs in reducing the total electricity cost of the MG.
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institution OA Journals
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publishDate 2018-01-01
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spelling doaj-art-efcb07b87eb84d4bbd2d091457c657632025-08-20T02:22:04ZengWileyComplexity1076-27871099-05262018-01-01201810.1155/2018/98420259842025Optimal Scheduling of a Microgrid Including Pump Scheduling and Network ConstraintsAshok Krishnan0L. P. M. I. Sampath1Y. S. Foo Eddy2H. B. Gooi3School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporeInterdisciplinary Graduate School, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporeThis paper proposes an efficient energy management system (EMS) for industrial microgrids (MGs). Many industries deploy large pumps for their processes. Oftentimes, such pumps are operated during hours of peak electricity prices. A lot of industries use a mix of captive generation and imported utility electricity to meet their energy requirements. The MG considered in this paper includes diesel generators, battery energy storage systems, renewable energy sources, flexible loads, and interruptible loads. Pump loads found in shipyard dry docks are modelled as exemplar flexible industrial loads. The proposed EMS has a two-stage architecture. An optimal MG scheduling problem including pump scheduling and curtailment of interruptible loads (ILs) is formulated and solved in the first stage. An optimal power flow problem is solved in the second stage to verify the feasibility of the MG schedule with the network constraints. An iterative procedure is used to coordinate the two EMS stages. Multiple case studies are used to demonstrate the utility of the proposed EMS. The case studies highlight the efficacy of load management strategies such as pump scheduling and curtailment of ILs in reducing the total electricity cost of the MG.http://dx.doi.org/10.1155/2018/9842025
spellingShingle Ashok Krishnan
L. P. M. I. Sampath
Y. S. Foo Eddy
H. B. Gooi
Optimal Scheduling of a Microgrid Including Pump Scheduling and Network Constraints
Complexity
title Optimal Scheduling of a Microgrid Including Pump Scheduling and Network Constraints
title_full Optimal Scheduling of a Microgrid Including Pump Scheduling and Network Constraints
title_fullStr Optimal Scheduling of a Microgrid Including Pump Scheduling and Network Constraints
title_full_unstemmed Optimal Scheduling of a Microgrid Including Pump Scheduling and Network Constraints
title_short Optimal Scheduling of a Microgrid Including Pump Scheduling and Network Constraints
title_sort optimal scheduling of a microgrid including pump scheduling and network constraints
url http://dx.doi.org/10.1155/2018/9842025
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