DSP based intersectional control in multidrive systems

Valenzuela, M. Aníbal; Palma, Jonathan M.; Sánchez, Ricardo Chaparro

doi:10.1109/ias.1997.643065

Cited by 6 publications

(2 citation statements)

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“…An output power split factor is defined as the ratio of the output power as through the diode rectifier and the total output power (9) Note that the system structure with leads to the VSR topology and with yields an APF circuit. With the defined , the MFC rating is given by (10) Then, the value of which minimizes the MFC rating can be found by taking (11) This yields an optimized power split factor given by (12) It is worth noting that from (12), with increased distortion level of the diode rectifier current (increasing and ), the optimized power split factor decreases, which yields more output power flown through the MFC. This is illustrated in Fig.…”

Section: B Multi-function Converter (Mfc) Ratingmentioning

confidence: 99%

“…The multidrive concept has offered an attractive approach to decrease the specific cost and size of such converters. A stand-alone PWM-VSR with two inverter-motor units [8]- [10] as well as a combined system of a diode rectifier and an APF with respective drives [4]- [7] can be configured to operate at unity power factor on the utility side and with independent motor controls on the output sides. The two alternative topologies, which can realize the desired input/output performance, are shown in Figs.…”

Section: Introductionmentioning

confidence: 99%

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Design and performance comparisons of two multidrive systems with unity power factor

Kwak

Toliyat

2005

IEEE Trans. Power Delivery

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From economical aspects, the multidrive systems are a promising application area for the converters, where the cost and size of the converters are shared by multiple inverter-motors. Given terminal constraints of unity power factor in grid line and independent multiple motor controls in output ports, two multidrive topologies are possible: one with single PWM-VSR feeding inverters through the common dc bus, and the other using a diode rectifier and an active power filter with its own load. Despite several publications for two systems, the features and advantages of the two systems have not been clearly explained. This paper, in detail, presents the theoretical analyses and systematic comparisons of the two multidrive topologies, from converter kilovolt-ampere ratings, dc-link voltage requirements, switch ratings, semiconductor losses, and reactive component designs point of views.Index Terms-Converter size analysis, design aspects and comparisons, multidrive systems, switch ratings.

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