A control strategy for grid-connected distributed energy resources in the presence of unbalanced and harmonically polluted loads

Sasan Gholami; Mohammad Aldeen; Sajeeb Saha

doi:10.1109/ISGT-Asia.2016.7796504

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A control strategy for grid-connected distributed energy resources in the presence of unbalanced and harmonically polluted loads

Conference paper

Peer reviewed

A control strategy for grid-connected distributed energy resources in the presence of unbalanced and harmonically polluted loads

Sasan Gholami, Mohammad Aldeen and Sajeeb Saha

2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia), pp.896-901

IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia), 2016 (Melbourne, Australia, 28-Nov-2016–01-Dec-2016)

Institute of Electrical and Electronics Engineers

2016

DOI: https://doi.org/10.1109/ISGT-Asia.2016.7796504

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Abstract

microgrids

density estimation robust algorithm

mathematical model

power conversion

reactive power

voltage control

distributed power generation

multi-input multi-output control strategy

MIMI

dq model

PWM power converters

This paper presents a multi-input multi-output (MIMO) control strategy based on dq model of electronically coupled distributed energy resources (DERs). The DER represents a dispatchable distributed generation (DG) which is connected to the main grid by means of three phase voltage source converter (VSC). The control scheme uses Phase-Locked Loop (PLL) to estimate the frequency of the grid. Therefore, the controller can be implemented in dq frame. The DER is assumed to be in a microgrid with local loads which have different topologies such as unbalanced and harmonically polluted loads. The objective is to control the real and reactive powers that DER delivers to the main grid by current-mode control of VSC in the presence of different topologies for local loads. The control strategy uses the theory of repetitive controller which guarantees that the DER controller generates pulse width modulation (PWM) signals so that the real and reactive powers output of the microgrid track their corresponding references in the presence of sinusoidal reference inputs. The effectiveness of the proposed approach is verified through case studies, carried out on an electronically based DER in a grid-connected microgrid.

Details

Title: A control strategy for grid-connected distributed energy resources in the presence of unbalanced and harmonically polluted loads
Authors: Sasan Gholami (Author) - The University of Melbourne
Mohammad Aldeen (Author) - The University of Melbourne
Sajeeb Saha (Author) - Deakin University
Publication details: 2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia), pp.896-901
Conference details: IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia), 2016 (Melbourne, Australia, 28-Nov-2016–01-Dec-2016)
Publisher: Institute of Electrical and Electronics Engineers
Date published: 2016
DOI: 10.1109/ISGT-Asia.2016.7796504
ISSN: 2378-8542
ISBN: 9781509043033
Organisation Unit: University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99532307102621
Output Type: Conference paper

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