Overview of PI-based solutions for the control of the DC-buses of a single-phase H-bridge multilevel active rectifier

Dell’Aquila, A.; Liserre, Marco; Monopoli, Vito Giuseppe; Rotondo, Paola

doi:10.1109/apec.2004.1295920

Cited by 33 publications

(33 citation statements)

References 5 publications

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“…And the sum of the continuous switching functions S 1 +S 2. can be obtained from the value of u con /(u dc1 +u dc2 ), here u dc1 and u dc2 are capacitor voltage of the two H-bridges in series respectively. The correctness of the above control method has been proven [15]. This control scheme can be described in Fig.…”

Section: A Mathematical Model and Control Scheme Of The Systemmentioning

confidence: 95%

“…6 shows dynamic characteristics of DC-link voltages using three different balance strategies. Fig 6 (a) and (b) show the balance strategy proposed by [15], which didn't think about the unbalance loads range, so there are more ripples of DC-link voltages when big unbalanced loads occur after 0.6s, and its output synthetic wave gets worse to inject more harmonics to the grid. The balances strategy proposed by [17] is shown as in Fig.6 (c) and (d) could be seen that the DC-link voltages of the two cells couldn't be rebalanced when big unbalanced loads occur after 0.6s, although the system can be stable and work under the unity power factor.…”

Section: B a Modified Modulation For Extending Unbalanced Loads Rangementioning

confidence: 99%

See 1 more Smart Citation

Modified Staircase Modulation for Extending Unbalanced Loads Range of Cascaded H-Bridge Rectifier

Zhang

Wang

Cheng

et al. 2012

2012 Asia-Pacific Power and Energy Engineering Conference

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In this paper, the relations among the active power distribution, modulation wave and unbalanced loads range are analyzed. A maximum unbalanced loads range is proposed by modifying modulation waveforms under the unity power factor. And a modified staircase modulation, which is easy to realize, is proposed for a single-phase cascaded H-bridge multilevel rectifier to extend the range of unbalanced loads. The control method has been fully investigated with theoretical analysis, simulation with two cascaded H-bridges. Simulation results are presented to support this strategy.

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Section: A Mathematical Model and Control Scheme Of The Systemmentioning

confidence: 95%

Section: B a Modified Modulation For Extending Unbalanced Loads Rangementioning

confidence: 99%

Modified Staircase Modulation for Extending Unbalanced Loads Range of Cascaded H-Bridge Rectifier

Zhang

Wang

Cheng

et al. 2012

2012 Asia-Pacific Power and Energy Engineering Conference

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“…The voltage and current vectors are shown in Fig.12 The input power of the modules can be controlled by adjusting the magnitudes of their output voltages [7]. When the PET is working under APF mode, there is no active current flowing through the modules.…”

Section: Voltage Balancing Controlmentioning

confidence: 99%

A single phase power electronic transformer considering harmonic compensation in Scott Traction system

Ouyang

Liu

Wang

et al. 2015

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)

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Power electronic transformer(PET) has been the focus of interest in recent years. Compared with conventional low frequency transformers, PETs can offer many additional functions such as phase shifting, frequency shifting and reactive power/harmonic compensation. This paper proposes a single phase PET for the Scott railway power system. The PET achieves active power control which balances the Scott's secondary currents. The PET also achieves reactive/harmonic compensation. The configuration and control strategy of the proposed PET is discussed. Simulation results from PLECS verifies the effectiveness of the proposed PET and its control strategy.

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“…In literature various PWM schemes are used for CHB rectifier operation [6], [7]. Some PI based control has also been proposed in literatures for proper dc bus regulation [8]. But these are based on instantaneous control and also control is complicated.…”

Section: Introductionmentioning

confidence: 99%

SRF based modeling and control of cascaded multilevel active rectifier with uniform DC-buses

Kumar

Meena

2014

2014 Recent Advances in Engineering and Computational Sciences (RAECS)

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Cascaded H-bridge (CHB) multilevel active rectifier system envisage attractive alternative for conventional method of active rectification and finds application in traction drive and locomotives. Further CHB structure can be utilize of high voltage transformer less rectification. Availability of multiple DC buses in CHB, needs DC bus regulation at each level. It becomes a challenging task in CHB due to interdependent control of each H-bridge. It is therefore proper control algorithm has to be designed for effective regulation and fast response. In view of this single phase synchronous reference frame (SRF) theory based voltage controlled phase shifted PWM controller has been modeled for active rectification with unity power factor operation. MATLAB based simulation results shows the efficient working of CHB multilevel active rectifier with proposed control algorithms and its effectiveness is verified by changing the loading conditions.

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Overview of PI-based solutions for the control of the DC-buses of a single-phase H-bridge multilevel active rectifier

Cited by 33 publications

References 5 publications

Modified Staircase Modulation for Extending Unbalanced Loads Range of Cascaded H-Bridge Rectifier

Modified Staircase Modulation for Extending Unbalanced Loads Range of Cascaded H-Bridge Rectifier

A single phase power electronic transformer considering harmonic compensation in Scott Traction system

SRF based modeling and control of cascaded multilevel active rectifier with uniform DC-buses

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