Title:
MICROGRID ENERGY MANAGEMENT SYSTEM WITH ANCILLARY SERVICES TO THE GRID

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Authors
Al Owaifeer, Maad
Authors
Advisors
Meliopoulos, A. P. Sakis
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Abstract
We propose a microgrid energy management system (µGEMS) that optimally plans the operations, and control the distributed energy resources (DERs) while committing, holding, dispatching, and maintaining different ancillary services for the grid in a reliable and economical manner. Reserve, regulation, and voltage support services can be supplied simultaneously via the µGEMS. The proposed µGEMS may be used to commit the services a Day-Ahead (DA) in advance to dispatch, or in Real-Time (RT) (i.e., DA and RT Commitments). Commitment rules that the µGEMS can consider include minimum acceptable capacities, required time to respond, and required time to maintain. We model the µG as an AC network using the current formulation to obtain a model that is mostly linear. Bus voltage, circuit loading, and point of common coupling (PCC) power factor limits are enforced during the commitment, the holding, the dispatching, and the maintaining stages of services. The proposed µGEMS consists of a collection of interacting optimization problems each with a certain task, planning horizon, and frequency of solve. The optimization problems are generally mixed-integer quadratically constrained programming (MIQCP) problems. A solution methodology for the optimization problems is proposed based on successive linear programming (SLP) which promises efficient handling of discrete variables.
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Date Issued
2021-07-20
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Dissertation
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