Comprehensive Analysis of LCL Filter Interfaced Cascaded H-Bridge Multilevel Inverter-Based DSTATCOM

Ravikant Pandey, Ravi Nath Tripathi and Tsuyoshi Hanamoto
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Ravikant Pandey: Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka 808-0196, Japan
Ravi Nath Tripathi: Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka 808-0196, Japan
Tsuyoshi Hanamoto: Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka 808-0196, Japan

Energies, 2017, vol. 10, issue 3, 1-19

Abstract: Three-phase two-level voltage source converters are used for distribution static compensator (DSTATCOM) applications and can be replaced by a multilevel inverter. In this paper, an LCL filter interfaced cascaded H-bridge multilevel inverter-based (CHBMLI) DSTATCOM is simulated and its performance is analyzed considering the system parameters. The analysis considers factors including the switching frequency, modulation index, and filter parameters of a DSTATCOM system. The LCL filter design and analysis for the low switching frequency operation of CHBMLI is proposed in this paper. Phase shift pulse-width modulation is used for the generation of switching signals. The reference current is generated using synchronous reference frame theory (SRFT) for reactive power and harmonic compensations. The simulation model of the CHBMLI-based DSTATCOM system is developed in MATLAB Simulink. The results are demonstrated for a linear/non-linear load under unbalanced conditions, considering the voltage sag and swell in the system due to a disturbance in the load.

Keywords: cascaded H-bridge multilevel inverter-based (CHBMLI); LCL filter; phase shift pulse width modulation (PSPWM); distribution static compensator (DSTATCOM) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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