—This paper proposes an analytical procedure for computation of all pairs of valid switching angles used in pattern generation in five-level H-bridge cascaded inverters. The proposed procedure eliminates harmonic components from inverter output voltage and, for each harmonic, returns the exact boundaries of all valid modulation index intervals. Due to its… (More)
In this paper we construct quadrature rules for the numerical evaluation of some singular integrals by using the interpolating-derivative splines. Convergence properties and numerical results are given.