Comparative Study of Predictive-Fixed Switching Techniques for a Cascaded H-Bridge Two level STATCOM

Renault, Alfredo; Ayala, Magno; Comparatore, Leonardo; Pacher, Julio; Gregor, Raúl

doi:10.1109/upec.2018.8541981

Cited by 6 publications

(6 citation statements)

References 23 publications

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“…We assume that the state equation given by ( 17) is completely state controllable. The augmented dynamic system can be described by an equation that is combination of ( 17) and (19).…”

Section: The State Feedback Controllermentioning

confidence: 99%

State feedback control of advanced static var compensator using a five-level NPC inverter topology

Benyamina

Tahri

Boukortt

2021

IJPEDS

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This paper deals with the modeling and control of an advanced static var compensator (ASVC) using a five-level neutral point-clamped (NPC) voltage source inverter (VSI). The nonlinear state space model of the five-level ASVC is obtained from the d-q axis frame. The effectiveness of this compensator highly depends on the choice of the control strategy. The proposed state feedback control (SFC) technique is applied to adjust the ASVC Var flow with the AC transmission network and achieve DC voltage capacitor balance. The dynamic performance of the ASVC based SFC controller is evaluated under several operating conditions. The simulation results demonstrate that the proposed SFC control strategy is highly robust compared to the conventional Proportional-Integral (PI) control.

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“…We assume that the state equation given by ( 17) is completely state controllable. The augmented dynamic system can be described by an equation that is combination of ( 17) and (19).…”

Section: The State Feedback Controllermentioning

confidence: 99%

State feedback control of advanced static var compensator using a five-level NPC inverter topology

Benyamina

Tahri

Boukortt

2021

IJPEDS

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“…Commonly the CHB-based MMC uses IGBT as switching. Nevertheless, the SiC-MOSFET has been used as an alternative mainly because it can reach higher switching frequencies than IGBT devices [14,15]. Yet, it is not enough to incorporate faster switching to the MMC to improve the power quality [16,17].…”

Section: Introductionmentioning

confidence: 99%

Model Predictive Control of a Modular 7-Level Converter Based on SiC-MOSFET Devices—An Experimental Assessment

et al. 2022

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Power converter technology has expanded into a wide range of low, medium, and high power applications due to the ability to manage electrical energy efficiently. In this regard, the modular multilevel converter has become a viable alternative to ensure an optimal harmonic profile with a sinusoidal voltage at the load side. Model predictive control (MPC) is a state-of-the-art technique that has been successfully used to control power electronic converters due to its ability to handle multiple control objectives. Nevertheless, in the classical MPC approach, the optimal vector is applied during the whole sampling period producing an output voltage. This solution causes an unbalanced switching frequency of the power semiconductor, which then causes unbalanced stress on the power devices. Modulation strategies have been combined with MPC to overcome these shortcomings. This paper introduces the experimental assessment of a 7-level converter combining a simple phase shift multicarrier pulse-width modulation approach with the MPC technique. A custom test-bed based on SiC-MOSFETs switches is used to validate the proposal.

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“…In addition, the variable switching frequency produced by the CMPC increases the difficulty in designing input filter parameters, since the input filter resonance is easier to be inspired [20]. In order to solve these problems, several attempts have been discussed in [18][19][20][21][22][23][24][25][26], where a modulation scheme is added into the CMPC. In [18], the multi-objective modulated model predictive control (M 2 PC) was proposed and tested, where the ac current and the dc-link voltage are controlled in a grid-connected seven-level three-phase cascaded H-bridge back-to-back converter.…”

Section: Introductionmentioning

confidence: 99%

“…A similar modulation scheme was introduced to the OSMC in [19,20], but only load current was controlled and the supply current was ignored, which is an important control objective for an MC. In [21], two enhanced predictive current control schemes with fixed switching frequency for the three-wire cascaded H-bridge converter were compared in terms of current tracking errors, power ripples and the grid current total harmonic distortion (THD), but no significantly better performance were obtained in both two methods. In [22], M 2 PC was applied to a two-Level voltage source inverter.…”

Section: Introductionmentioning

confidence: 99%

“…The same problem is the increased calculation amount. As mentioned in [18][19][20][21][22][23][24], several attempts have been implemented in several power converters, i.e., back-to-back converters (B2B), OSMCs, voltage source inverters (VSI), modular multilevel converters (MMC) and ac-dc matrix converter (ADC). However, few schemes have been discussed to apply to TSMCs.…”

Section: Introductionmentioning

confidence: 99%

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Vector Modulation-Based Model Predictive Current Control with Filter Resonance Suppression and Zero-Current Switching Sequence for Two-Stage Matrix Converter

Zhang

2021

Energies

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This paper proposes a novel model predictive current control scheme for two-stage matrix converter. The switching frequency is kept constant by fixing the switching instant. The control strategy achieves to control source reactive power in the input side and output currents in the output side. In addition, the advantage of the proposed strategy compared with conventional model predictive control is firstly proved using the principle of vector synthesis and the law of sines in the vector distribution area. Moreover, a zero-current switching sequence is proposed and implemented to insure zero-current switching operations and reduce the switching losses. Furthermore, in order to suppress the input filter resonance, which is easier to be inspired by the model predictive control, compared with traditional control strategies, an innovative active damping technique is proposed and implemented. Finally, both simulation and experiment are implemented to verify the performance of the proposed strategy. The results demonstrate that the control system features both good steady and transient performance.

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Comparative Study of Predictive-Fixed Switching Techniques for a Cascaded H-Bridge Two level STATCOM

Cited by 6 publications

References 23 publications

State feedback control of advanced static var compensator using a five-level NPC inverter topology

State feedback control of advanced static var compensator using a five-level NPC inverter topology

Model Predictive Control of a Modular 7-Level Converter Based on SiC-MOSFET Devices—An Experimental Assessment

Vector Modulation-Based Model Predictive Current Control with Filter Resonance Suppression and Zero-Current Switching Sequence for Two-Stage Matrix Converter

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