Phase-controlled line-commutated converter control in discontinuous conduction mode

Maestri, Sebastian; Benedetti, Mario; Petrocelli, R.; Uicich, Gustavo

doi:10.1109/epe.2007.4417454

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Cited by 3 publications

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“…Also, in this mode, the small-signal gain, and hence, its stability, bandwidth, and time response in closedloop operation, result in a function of the load current [7]- [9]. Furthermore, the output impedance increases as the conduction angle γ decreases [10].…”

Section: Introductionmentioning

confidence: 99%

Method for Discontinuous Current Mode Compensation of Line-Commutated Converters

Maestri

Uicich

Benedetti

et al. 2009

IEEE Trans. Power Electron.

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The implementation of a new method to control linecommutated converters in discontinuous conduction mode is presented. The method is based on the modification of the thyristor's firing angle α using a linear approximation, yielding nearly the same dynamic performance as in continuous conduction mode. The firing angle is corrected by adding a supplementary angle ∆α, calculated by estimating the average output current. The proposed technique significantly reduces computational burden, thus being suitable for online calculation. Both simulations and experimental results are presented on a 1-kW laboratory prototype.

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Section: Introductionmentioning

confidence: 99%