Network-Friendly Low-Switching-Frequency Multipulse High-Power Three-Level PWM Rectifier

Pontt, J.; Rodríguez, José; Liendo, Alvaro; Newman, P.; Holtz, J.; Martin, J.M. San

doi:10.1109/tie.2008.2007998

Cited by 42 publications

(18 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…thus (12) allows to predict the future behavior of the input current of a power cell, based on previous states and inputs of the system.…”

Section: Afe Rectifier Modelmentioning

confidence: 99%

“…Indeed, this work considers the use of PWM modulating techniques specifically designed for these types of topologies [10]- [12], where the diode three-phase rectifier has been replaced by an Active Front End rectifier (AFE). Despite these efforts, still a multipulse input transformer, which is bulky, expensive and complex to manufacture must be designed according to the number of power cells.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Finite control set model predictive control with reduced switching frequency applied to multi-cell rectifiers

Espinosa

Rohten

Silva

et al. 2015

2015 IEEE International Conference on Industrial Technology (ICIT)

View full text Add to dashboard Cite

The utilization of multi-cell converters, through the use of low voltage semiconductors, has permitted to implement medium and high voltage applications as PV farms and AC drives. In conventional AC drives, this converter requires an input multipulse transformer, which allows the low frequency harmonic cancellation that are generated by the three-phase diode rectifiers included in each cell. This multipulse transformer is bulky, heavy, expensive, and must be designed according to the number of power cells, making the transformer topology dependent. This work proposes and evaluates a harmonic minimization strategy based on a Finite Control Set -Model Predictive Control (FCS -MPC), which emulates the harmonic cancellation of a multi-pulse transformer. This feature allows the minimization of the Total Harmonic Distortion (THD) of the AC grid current of the multi-cell converter. The evaluation is focused in one disadvantage of the FCS -MPC which is its high switching frequency that causes high losses in the semiconductors.To overcome this disadvantage, an additional objective function is proposed. Simulation results prove the theory, with satisfactory results.

show abstract

“…thus (12) allows to predict the future behavior of the input current of a power cell, based on previous states and inputs of the system.…”

Section: Afe Rectifier Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Finite control set model predictive control with reduced switching frequency applied to multi-cell rectifiers

Espinosa

Rohten

Silva

et al. 2015

2015 IEEE International Conference on Industrial Technology (ICIT)

View full text Add to dashboard Cite

show abstract

“…For example, the split-type pulse transformer, which is widely utilized in urban rail transit power systems, can effectively eliminate the primary-side current harmonics of the transformer. [11], [12] proposed a three-level harmonic optimal modulation strategy based on a 12-pulse rectifier transformer integrated with a dual main circuit structure. This strategy can realize low harmonics in the transformer primary side with low switching frequency.…”

Section: Introductionmentioning

confidence: 99%

Grid-friendly Control Strategy with Dual Primary-Side Series-Connected Winding Transformers

Shang¹,

Nian²,

Chen³

et al. 2016

Journal of Power Electronics

View full text Add to dashboard Cite

High-power three-level voltage-source converters are widely utilized in high-performance AC drive systems. In several ultra-power instances, the harmonics on the grid side should be reduced through multiple rectifications. A combined harmonic elimination method that includes a dual primary-side series-connected winding transformer and selective harmonic elimination pulse-width modulation is proposed to eliminate low-order current harmonics on the primary and secondary sides of transformers. Through an analysis of the harmonic influence caused by dead time and DC magnetic bias, a synthetic compensation control strategy is presented to minimize the grid-side harmonics in the dual primary side series-connected winding transformer application. Both simulation and experimental results demonstrate that the proposed control strategy can significantly reduce the converter input current harmonics and eliminates the DC magnetic bias in the transformer.

show abstract

“…Nowadays, PWM rectifiers have been widely applied in series of industrial fields, such as Static Reactive Power Generator (SVG), Active Power Filter (APF), Unified Power Flow Controller (UPFC), High Voltage DC Transmission (HVDC) and some renewable energy generation system [1][2][3][4][5][6]. The key issues concerning the control of a threelevel voltage source PWM rectifier are about neutral potential balancing, switch losses and the cross-coupling between i d and i q .…”

Section: Introductionmentioning

confidence: 99%

Current Decoupling Control for the Three-level PWM Rectifier with a Low Switching Frequency

Yuan¹,

Xia²

2015

Journal of Electrical Engineering and Technology

View full text Add to dashboard Cite

-Three-level PWM rectifiers applied in medium voltage applications usually operate at low switching frequency to keep the dynamic losses under permitted level. However, low switching frequency brings a heavy cross-coupling between the current components i d and i q with a poor dynamic system performance and a harmonic distortion in the grid-connecting current. To overcome these problems, a mathematical model based on complex variables of the three-level voltage source PWM rectifier is firstly established, and the reasons of above issues resulted from low switching frequency have been analyzed using modern control theory. Then, a novel control strategy suitable for the current decoupling control based on the complex variables for i d and i q is designed here. The comparisons between this kind of control strategy and the normal PI method have been carried out. MATLAB and experimental results are given in detail.

show abstract

Network-Friendly Low-Switching-Frequency Multipulse High-Power Three-Level PWM Rectifier

Cited by 42 publications

References 33 publications

Finite control set model predictive control with reduced switching frequency applied to multi-cell rectifiers

Finite control set model predictive control with reduced switching frequency applied to multi-cell rectifiers

Grid-friendly Control Strategy with Dual Primary-Side Series-Connected Winding Transformers

Current Decoupling Control for the Three-level PWM Rectifier with a Low Switching Frequency

Contact Info

Product

Resources

About