Analysis and Design of a Multicell Topology Based on Three-Phase/Single-Phase Current-Source Cells

Melín, Pedro; Rohten, Jaime; Baier, Carlos R.; Espinosa, Eduardo; Muñoz, Javier; Riedemann, Javier

doi:10.1109/tpel.2015.2502185

Cited by 15 publications

(11 citation statements)

References 53 publications

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“…Eq. (19) shows that the output voltage THD is a function of the filter reactance, impedance Z m , and modulation techniques, including the modulation index. Grouping the terms defined by the modulation technique, F iac can be defined as…”

Section: Capacitive Filter Design As a Function Of The Load Voltage Tmentioning

confidence: 99%

“…Cascaded H-bridge based on current-source inverter (CSI) is an emerging power topology that uses a current-source inverter and a capacitive filter to synthetize a controlled voltage source that can be connected in series with other controlled voltage sources in order to reach higher voltage levels. It has been proposed for the first time in 2008 [9] for AC drive applications, and its study has been focused mainly in reducing the size of the DC inductor, the use of control techniques [10] and the compensation of using cells that are magnetically coupled [11][12][13][14], the control of the inverters using linear control and non-linear control [15][16][17], and the modulation and design of the power topology [18,19].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cascaded H‐Bridge Converters Based on Current‐Source Inverters: Analysis, Design, and Application on AC Drives

Coloma¹,

Castro²,

Fuentes³

et al. 2017

Recent Developments on Power Inverters

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This chapter reviews the cascaded H-bridge (CHB) based on current-source inverter (CSI) topology. First, the description of power topology is presented from the point of view of the current-source single-phase inverter and it connection in series with others inverters. Then, modulation of the single-phase inverter is studied, including the use of multi-level modulation techniques and their use in the proposed power topology are reviewed and simulated. Next, key design guidelines of the output capacitor and the DC inductor are reviewed. Finally, an application example for AC drives simulated in PSIM is presented. From the study, it can be concluded that the main advantage of the topology is the quality of both input currents and load voltage, while its main drawback is the use of a bulky DC inductor because of the use of current-source inverters and the oscillating power drained by the inverter from the DC side. In the same way of classic cascaded H-bridge topologies, the use of the proposal topology allows us to use semiconductors and passive components with lower voltage and current rating than the voltage and current required by the load.

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Section: Capacitive Filter Design As a Function Of The Load Voltage Tmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cascaded H‐Bridge Converters Based on Current‐Source Inverters: Analysis, Design, and Application on AC Drives

Coloma¹,

Castro²,

Fuentes³

et al. 2017

Recent Developments on Power Inverters

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show abstract

“…With the intense research of power electronics technology, three-phase pulse width modulation (PWM) converter has been widely used in motor drive field [1], high voltage direct current transmission system and flexible AC transmission system [2,3,4], aviation power supply [5,6], micro-grid system [7], data center system [8], photovoltaic power system [9,10,11] and wind power generation system [12,13] with its advantages of operating at unit power factor and having sinusoidal net-side current [14]. Due to the advantages of fast dynamic response, wide control range of output voltage and easy parallel operation [15,16], the threephase current source PWM rectifier has a broad research prospect [17,18].…”

Section: Introductionmentioning

confidence: 99%

A digital control strategy for three-phase PWM converter to suppress output voltage ripple under unbalanced input voltages

Zhang

Zhou

et al. 2023

IEICE Electron. Express

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Three-phase pulse width modulation (PWM) converter has been widely used in motor drive field, data center system and grid-connected power generation system for the advantages of operating at unit power factor and bidirectional power transmission. However, under the input voltages unbalance condition, the dc output of PWM rectifier will have a large second-order voltage ripple with conventional control strategy, which can deteriorate the performance of dc side, leading to odd input currents harmonics and reduce efficiency. To solving above problems, especially the second-order voltage ripple, a digital control strategy for three-phase PWM rectifier is proposed in this letter. Compared with the existed control strategies, the proposed control strategy does not need to extract positive and negative sequence components of input voltages, so that there is no phase locked loop and complex calculation. The correctness and effectiveness of the proposed control strategy are verified by simulation results and experimental results.

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“…The above several current source multi-level converter topologies [12][13][14][15][16][17][18][19] only study how to obtain a multi-level ac current waveform, and do not involve the problem of the converter interface with the power grid. In other words, an ac capacitor needs to be set between the converter and the grid to ensure proper operation of the converter.…”

Section: Introductionmentioning

confidence: 99%

“…In order to reduce the harmonics of the output current and increase the capacity level of the CSC, multi‐level technology is used. A combined multi‐level CSC is given in [12]. The topology consists of n three‐phase bridges connected in parallel by the ac side.…”

Section: Introductionmentioning

confidence: 99%

Implementation of a new high‐power current‐source single‐stage PV grid‐connected system with reactive power compensation

Liu

Wang

2019

IET Renewable Power Generation

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In view of the shortcoming of voltage source converter in the application of high-power photovoltaic (PV) gridconnected system, this study designs a new single-stage current source PV grid-connected system based on dc current reinjection conversion. The system can freely control the dc current in a wide range, so only one stage of conversion is needed to achieve wide range control of the dc side maximum power point tracking. The amplitude and phase angle of the ac output current can be freely regulated, so it is able to realise grid-connected power generation under unit power factor and supply a certain amount of reactive power according to the control order while grid-connected power generation. Meanwhile, the new current source converter topology eliminates the ac capacitors which are arranged between the converter and the power grid, and gets approximately sinusoidal ac currents without setting filters. This study describes the circuit structure and control of the PV grid-connected system, and builds an experimental prototype. The simulation and experimental results will be shown to demonstrate the feasibility of the converter topology, and the effectiveness of the control strategy.

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Analysis and Design of a Multicell Topology Based on Three-Phase/Single-Phase Current-Source Cells

Cited by 15 publications

References 53 publications

Cascaded H‐Bridge Converters Based on Current‐Source Inverters: Analysis, Design, and Application on AC Drives

Cascaded H‐Bridge Converters Based on Current‐Source Inverters: Analysis, Design, and Application on AC Drives

A digital control strategy for three-phase PWM converter to suppress output voltage ripple under unbalanced input voltages

Implementation of a new high‐power current‐source single‐stage PV grid‐connected system with reactive power compensation

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