Optimized Pulse Patterns for the 5-Level ANPC Converter for High Speed High Power Applications

Meili, Jorg; Ponnaluri, S.; Serpa, L.A.; Steimer, P.K.; Kolar, Johann W.

doi:10.1109/iecon.2006.347555

Cited by 51 publications

(17 citation statements)

References 8 publications

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“…Changes may have been made to this work since it was submitted for publication. To generate the switching pulses, a variety of strategies have been presented to generate the output voltage with reduced harmonics and simultaneously regulate the FC voltage of the converter such as carrier-based PWM [4], modified triangular carrier-based PWM [5], optimized pulse pattern [6] and selective harmonic elimination PWM (SHE-PWM) [7], [8]. In these methods, to generate switching pulses, the dc-link capacitor voltages are considered to be balanced or the calculation is carried out based on balanced condition.…”

Section: Introductionmentioning

confidence: 99%

A Novel Modulation Technique and a New Balancing Control Strategy for a Single-Phase Five-Level ANPC Converter

Teymour

Sutanto

Muttaqi

et al. 2015

IEEE Trans. on Ind. Applicat.

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This paper proposes a novel modulation technique and a new balancing control strategy for a single-phase five-level flying-capacitor (FC)-based active-neutral-point-clamped (ANPC) converter. The proposed modulator can control the FC voltage to follow the requested reference value and simultaneously generate the required ac output voltage regardless of the values of the dc capacitor voltages of the converter. By implementing this method, smaller values of the dc-link capacitor and FC can be used even in applications that could experience ripple or transient in the capacitor voltage. In a single-phase five-level ANPC converter applications, where the capacitors can experience pulsation power and dc-link balancing issues, such as gridconnected photovoltaic system, the selection of the reference voltage value for the FC can play an important role to balance the average values of the dc-link capacitor voltage. The proposed new control strategy uses a new reference voltage for the FC to be applied by the new modulator to have an average balanced dc-link voltages as well as an ac output voltage with good power quality. Simulation studies and experimental results demonstrate the effectiveness of the proposed modulation technique and control strategy even with relatively small dc capacitors to produce high-quality output voltage and current waveforms while maintaining an average balanced dc-link voltages.

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Section: Introductionmentioning

confidence: 99%

A Novel Modulation Technique and a New Balancing Control Strategy for a Single-Phase Five-Level ANPC Converter

Teymour

Sutanto

Muttaqi

et al. 2015

IEEE Trans. on Ind. Applicat.

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“…In this case, the switching of the converter is determined offline in order to eliminate the harmonic distortion of some low order harmonics. The voltage level to be generated by the converter is finally obtained online choosing carefully the best switching achieving the floating voltage control simultaneously [11]- [13]. A similar technique has been also introduced to minimize online the overall total harmonic distortion [14].…”

Section: Common Modulation Techniques For the 5l-anpc Convertermentioning

confidence: 99%

Simple modulator with voltage balancing control for the hybrid five-level flying-capacitor based ANPC converter

Leon

Franquelo

Kouro

et al. 2011

2011 IEEE International Symposium on Industrial Electronics

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Abstract-The hybrid flying-capacitor based active-neutralpoint-clamped converter is a recent multilevel converter topology with interesting properties such as high quality output voltage and easy extension to achieve a high number of levels with reduced number of power devices. The control of the flying capacitors of the three-phase converter has been previously carried out by an elaborate control technique taking advantage of the large number of redundant switching states. This paper is focused on the introduction of a simple single-phase modulator for the single-phase five-level hybrid flying-capacitor based activeneutral-point-clamped converter. The single-phase modulator can be applied to each phase of a three-phase converter without losing generality. Using this modulation technique, the dc-link capacitors and the floating capacitor voltages are controlled to their desired values. Simulation results show the good performance of the voltage control obtaining simultaneously high quality output voltages and currents.

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“…Optimized pulse patterns with low switching frequency to deal with voltage balancing and switching frequency issues were presented in [11] and the control under selective harmonic elimination PWM was proposed in [12].…”

Section: Introductionmentioning

confidence: 99%

An n-level flying capacitor based active neutral-point-clamped converter

Pulikanti

Konstantinou

Agelidis

2010

The 2nd International Symposium on Power Electronics for Distributed Generation Systems

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An n-level flying capacitor (FC) based active neutral point clamped (ANPC) converter is discussed in this paper. The converter is based on an arrangement of a three-level ANPC converter and a number of two-level cells creating an n-level line-to-neutral waveform. The converter is operated under a phase-shifted carrier pulse-width modulation (PWM). The mathematical model for the DC-link capacitors voltage behavior of a three-phase arrangement is also presented. It is shown through simulations and experimental work that the voltage of flying capacitors can naturally balance to the required level in order to generate multilevel waveform. Simulations and experimental work of a single-phase seven-level ANPC converter prototype are also presented.

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Optimized Pulse Patterns for the 5-Level ANPC Converter for High Speed High Power Applications

Cited by 51 publications

References 8 publications

A Novel Modulation Technique and a New Balancing Control Strategy for a Single-Phase Five-Level ANPC Converter

A Novel Modulation Technique and a New Balancing Control Strategy for a Single-Phase Five-Level ANPC Converter

Simple modulator with voltage balancing control for the hybrid five-level flying-capacitor based ANPC converter

An n-level flying capacitor based active neutral-point-clamped converter

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