Turkish Journal of Computer and Mathematics Education
Journal license

Journal

Turkish Journal of Computer and Mathematics Education


Volume
& Issue

Volume 10, Issue 2


Published
on


Pages

889-898


DOI

Article

Mitigation of Unbalance Voltages for Islanded Micro-Grids by using Five Level Diode Clamped Multilevel Inverter


Authors

B. Mouli Chandra Affiliation:
Head of the Department, Electrical & Electronics Engineering, QISCET, Ongole, Andhra Pradesh, India
, B. Venkata Prasanth Affiliation:
Professor, EEE Department, QISCET, Ongole, Andhra Pradesh
, Komati Lakshmi Prasanna Affiliation:
Assistant Professor, EEE Department, QISCET, Ongole, Andhra Pradesh
and T. Srinivas Affiliation:
Asociate Professor, BS&H Department, QISCET, Ongole, Andhra Pradesh


Abstract

In this paper, a control strategy for paralleled three-phase inverters is proposed. The proposed local controller includes inner loop controller and droop controller and virtual impedance and unbalance compensator. The voltage/current controllers are to better mitigate voltage distortion when supplying non linear loads. Linear and non liner loads are to accurate current sharing for droop controller and virtual impedance. According to the amplitude of the negative sequence voltage by adjusting voltage reference. Compensation signal is sent to the DGs local controller, unbalance factor is reduced significantly. Unbalance is caused by single phase generators. It can be mitigated to an extremely low. In order to proposed control strategy for ac micro-grid consist of three three phase three leg inverters.


Keywords

voltage unbalances compensation, inner loop controllers, virtual impedance droop control, micro-grids


Citation

Chandra, B. M., Prasanth, B. V., Prasanna, K. L., & Srinivas, T. (2019). Mitigation of unbalance voltages for islanded micro-grids by using five level diode clamped multilevel inverter. Turkish Journal of Computer and Mathematics Education, 10(2), 889–898.

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