Author:
Li Shijun,Gu Jinjie,Li Biao
Abstract
Abstract
Due to the nonlinear and unbalanced load of micro-grid, the output voltage quality on the main inverter side is easily affected in the micro-grid based on Master-Slave control.So, this paper put up a strategy that compensating the harmonic current and negative-sequence current by subordinate inverter. This strategy makes the current that flow through main inverter only have fundamental positive sequence component, so as to achieve the aim of improving the quality of the output voltage. Finally, the simulation model is built in the PSCAD simulation environment, which shows the effectiveness of the strategy.
Subject
General Physics and Astronomy
Reference10 articles.
1. A Proportional+ Multiresonant Controller for Three-Phase Four-Wire High-Frequency Link Inverter;De;IEEE Transactions on Power Electronics,2010
2. Harmonic and Negative-Sequence Current Control in an Islanded Multi-Bus MV Microgrid;Karimi;IEEE Transactions on Smart Grid,2013
3. Harmonic Power Sharing with Voltage Distortion Compensation of Droop Controlled Islanded Microgrids;Moussa;IEEE Transactions on Smart Grid,2017
4. Reduction of voltage harmonics for parallel-operated inverters equipped with a robust droop controller,;Zhong,2011