Hybrid 2D-3D Space Vector Modulation Voltage Control Algorithm for Three Phase Inverters

Albatran, Saher; Yong, Fu; Albanna, Ahmad; Schrader, Robin; Mazzola, Michael S.

doi:10.1109/tste.2013.2245689

Cited by 9 publications

(5 citation statements)

References 18 publications

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“…In this study, the concept of three-dimensional SVPWM [23] and control of the NPC [24] also used the idea of offset voltage in determining the modulation parameters [25]. The results of the analysis obtained have not yet reached the simulation and experimental stages.…”

Section: Modulation Parametersmentioning

confidence: 96%

Novel asymmetric space vector pulse width modulation for dead-time processing in three-phase power converters

Yuniantoro

Widianto

2022

IJECE

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<p>This research analyzes the asymmetric control strategies in multilevel inverters, including asymmetric techniques in space vector modulation of power converters. Modulation parameters such as reference voltage vector (Vref), switching time, and duty cycle are derived in the three-dimensional spatial vector geometry formulation. Asymmetric space vector pulse width modulation (SVPWM) is unique in specifying modulation parameters, has unequal tetrahedron patterns, accompanied by application examples for the upper and lower sector pairs of a tetrahedron. The combination of the switch in the form of an inclined cylinder produces twelve pairs of asymmetric tetrahedrons where the voltage vector positions are in the other twenty-four tetrahedrons. The calculation shows processing dead-time in switching, which is used for current compensation in three-phase power converters.</p>

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Section: Modulation Parametersmentioning

confidence: 96%

Novel asymmetric space vector pulse width modulation for dead-time processing in three-phase power converters

Yuniantoro

Widianto

2022

IJECE

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“…Once the tetrahedron containing the reference vector is defined, the switching vectors adjacent to v* are known. From the projections of the reference vector on the switching vectors that delimit the tetrahedron, the time that each switching vector must be applied was calculated in [21][22][23]. In this work, a symmetric distribution of the switching vectors has been implemented.…”

Section: Three-dimension Space Vector Modulatormentioning

confidence: 99%

A Control Scheme to Suppress Circulating Currents in Parallel-Connected Three-Phase Inverters

et al. 2022

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The parallel operation of inverters has many benefits, such as modularity and redundancy. However, the parallel connection of inverters produces circulating currents that may result in malfunctions of the system. In this work, a control technique for the elimination of the low-frequency components of the circulating currents in grid-connected inverters is presented. The proposed control structure contains n-1 zero-sequence control loops, with n being the number of inverters connected in parallel. Simulation and experimental results have been carried out on a prototype composed of two 5 kW inverters connected in parallel. The results have been obtained by considering the following mismatches between both inverters: inductance values of the grid filters, unbalance of the delivered power, and the use of different modulation techniques.

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“…In Table 2 the phase to neutral voltages of the different switching vectors are expressed taking into account that the low frequency components of the voltage between the middle point of the dc-link and the neutral of the mains are zero, so it can be considered that the neutral point of the grid and the middle point of the dc-link are virtually connected at the frequency of the fundamental line voltage [19]. The tetrahedron that contains the reference vector must be calculated to obtain the switching vectors that must be applied [20]. It is necessary to calculate the time of application of the vectors, projecting the reference vector to the switching vectors that delimit the tetrahedrons.…”

Section: Three-dimension Space Vector Modulatormentioning

confidence: 99%

“…Then, some results are presented to validate the concept. The tetrahedron that contains the reference vector must be calculated to obtain the switching vectors that must be applied [20]. It is necessary to calculate the time of application of the vectors, projecting the reference vector to the switching vectors that delimit the tetrahedrons.…”

Section: Application To a 2 Mw Pv System Composed By Four 500 Kw Modumentioning

confidence: 99%

Modelling and Control of Parallel-Connected Transformerless Inverters for Large Photovoltaic Farms

et al. 2017

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This paper presents a control structure for transformerless photovoltaic inverters connected in parallel to manage photovoltaic fields in the MW range. Large photovoltaic farms are usually divided into several photovoltaic fields, each one of them managed by a centralized high power inverter. The current tendency to build up centralized inverters in the MW range is the use of several transformerless inverters connected in parallel, a topology that provokes the appearance of significant zero-sequence circulating currents among inverters. To eliminate this inconvenience, this paper proposes a control structure that avoids the appearance of circulating currents by controlling the zero-sequence component of the inverters. A second contribution of the paper is the development of a model of n parallel-connected inverters. To validate the concept, the proposed control structure has been applied to a photovoltaic field of 2 MW managed by four 500 kW photovoltaic inverters connected in parallel.

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Hybrid 2D-3D Space Vector Modulation Voltage Control Algorithm for Three Phase Inverters

Cited by 9 publications

References 18 publications

Novel asymmetric space vector pulse width modulation for dead-time processing in three-phase power converters

Novel asymmetric space vector pulse width modulation for dead-time processing in three-phase power converters

A Control Scheme to Suppress Circulating Currents in Parallel-Connected Three-Phase Inverters

Modelling and Control of Parallel-Connected Transformerless Inverters for Large Photovoltaic Farms

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