A Nonlinear Controller for Neutral Point Piloted (T-Type) Multilevel Inverter-Based Three-Phase Four-Wire DSTATCOM

<div>Harmonic spectra of compensated source currents with the SMC controller. (a) Phase <i>a</i> source current harmonic spectrum with the SMC controller. (b) Phase <i>b</i> source current harmonic spectrum with SMC controller. (c) Phase <i>c</i> source current harmonic spectrum with the SMC controller.</div>

International Transactions on Electrical Energy Systems

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Figure 12

Figure 12: A Nonlinear Controller for Neutral Point Piloted (T-Type) Multilevel Inverter-Based Three-Phase Four-Wire DSTATCOM 