Voltage Balancing at the Point of Common Coupling of DG Unit Using Decoupled Double Synchronous Reference Frame

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Sharafi Peyman; KARIMI SHAHRAM

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Journal Paper

Paper Information

Journal: TABRIZ JOURNAL OF ELECTRICAL ENGINEERING Year:2020 | Volume:50 | Issue:1 (91) Page(s): 243-252

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Title

Voltage Balancing at the Point of Common Coupling of DG Unit Using Decoupled Double Synchronous Reference Frame

Author(s)

Sharafi Peyman | KARIMI SHAHRAM | Issue Writer Certificate

Keywords

Voltage unbalance compensationQ1

microgridQ1

decoupled double synchronous reference frameQ1

droop controlQ1

current controllerQ1

Abstract

Voltage unbalance reduces the power quality and causes problems in the customer equipment and in the grids operation, especially in grids including distributed generation sources. In microgrids, use of distributed generation sources controlled by the inverter, has made it possible to compensate voltage unbalance by distributed generation units. To compensate voltage unbalance, usually two control loops are used to control the positive and negative components in the dq rotary frame. Nevertheless, the control loops of the positive and negative sequences are not completely decoupled from each other and there is an oscillatory coupling between them. In this paper, the use of the decoupled double synchronous reference frame in order to eliminate oscillating couplings and for Voltage unbalance compensation is proposed. The simulation results show that, using the proposed control method, the voltage unbalance at the point of common coupling is effectively reduced. Also, due to the decoupling of the positive sequence from the negative sequence control loop, the performance of the distributed generation unit in the power injection to the grid is not affected by the voltage unbalance control system.

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APA: Copy

Sharafi, Peyman, & KARIMI, SHAHRAM. (2020). Voltage Balancing at the Point of Common Coupling of DG Unit Using Decoupled Double Synchronous Reference Frame. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, 50(1 (91) ), 243-252. SID. https://sid.ir/paper/387290/en

Vancouver: Copy

Sharafi Peyman, KARIMI SHAHRAM. Voltage Balancing at the Point of Common Coupling of DG Unit Using Decoupled Double Synchronous Reference Frame. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING[Internet]. 2020;50(1 (91) ):243-252. Available from: https://sid.ir/paper/387290/en

IEEE: Copy

Peyman Sharafi, and SHAHRAM KARIMI, “Voltage Balancing at the Point of Common Coupling of DG Unit Using Decoupled Double Synchronous Reference Frame,” TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, vol. 50, no. 1 (91) , pp. 243–252, 2020, [Online]. Available: https://sid.ir/paper/387290/en

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