Lyapunov-based model predictive control for a single-phase grid-connected cascaded multilevel asymmetrical inverter

Abad, Mehdi Ghasemi Naveh Mahmoud; Ghadimi, Ali Asghar; Ebadi, Mazdak; Daeichian, Abolghasem

doi:10.1016/j.ijepes.2022.108789

Cited by 6 publications

(6 citation statements)

References 23 publications

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“…Although there is a wide diversity of multilevel inverter topologies [3], [4], the most common voltage-source topologies are neutral-point diode converters (NPC) [5], [6], [7], [8], flying capacitor converters (FCC) [9], cascaded H-bridge converters (CHB) [10], [11], and modular multilevel converters (MMC) [12], [13], [14].…”

Section: Introductionmentioning

confidence: 99%

“…With the ability to handle high-voltage and high-power devices, multilevel converters are widely used in medium-and high-voltage (>3 kV) power conversion systems but are also suitable for low-voltage power applications (approximately 400 V) owing to the reduced output filter volume or the higher fault tolerance capability they can achieve [2]. Although there is a wide diversity of multilevel inverter topologies [3], [4], the most common voltage-source topologies are neutral-point diode converters (NPC) [5], [6], [7], [8], flying capacitor converters (FCC) [9], cascaded Hbridge converters (CHB) [10], [11], and modular multilevel converters (MMC) [12], [13], [14]. A multilevel cascaded H-bridge inverter has several advantages over other topologies (e.g., flying capacitor or clamped capacitor, diode-clamped, and neutral-point clamped).…”

mentioning

confidence: 99%

“…These components mitigate the switching losses of the devices used and increase the reliability and efficiency of the circuit [15]. Therefore, this topology is widely used in industrial applications [4]. These cascaded multilevel inverters are widely used in renewable energy systems owing to several advantages, such as the absence of voltage imbalance problems, possible elimination of the DC-DC converter, low-frequency switching enabling cheaper transistors, and the absence of floating capacitors and latching diodes.…”

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confidence: 99%

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Pulse-Width Modulation Technique With Harmonic Injection in the Modulating Wave and Discontinuous Frequency Modulation for the Carrier Wave for Multilevel Inverters: An Application to the Reduction of Acoustic Noise in Induction Motors

2023

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An implementation of a harmonic injection pulse width modulation frequency-modulated triangular carrier (HIPWM-FMTC) control strategy applied to a multilevel power inverter feeding an asynchronous motor is presented. The aim was to justify the reduction in acoustic noise emitted by the machine compared with other strategies in the technical literature. In addition, we checked how the THD at the inverter output was reduced compared to the other control techniques used as a reference. The proposed strategy is based on frequency modulation of the triangular carrier. The main advantage of the proposed method is that only one control parameter is required for modifying the electrical spectrum. Therefore, the mechanical natural frequencies and spatial harmonics of the machine can be avoided, and acoustic noise can be reduced. The effectiveness of the technique was demonstrated after laboratory validation by comparing the acoustic results for a 1 kW motor. The results obtained from the laboratory tests are presented and compared with those of other acoustic measurements using different PWM strategies.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Pulse-Width Modulation Technique With Harmonic Injection in the Modulating Wave and Discontinuous Frequency Modulation for the Carrier Wave for Multilevel Inverters: An Application to the Reduction of Acoustic Noise in Induction Motors

2023

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“…There exists a broad range of multilevel inverter topologies [5,6], with the most prevalent voltage source topologies being the neutral point diode (NPC) converter [7,8,9,10], the flying capacitor converter (FCC) [11], the cascaded H-bridge (CHB) converter [12,13], and the modular multilevel converter (MMC) [14,15,16].…”

Section: Introductionmentioning

confidence: 99%

“…These alleviate switching losses in the utilized devices, thereby augmenting circuit reliability and efficiency [17]. Consequently, this topology finds extensive utilization in industrial applications [6].…”

Section: Introductionmentioning

confidence: 99%

Discontinuous PWM Strategy with Frequency Modulation for Vibration Reduction in Asynchronous Machines

et al. 2023

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The aim of this paper is to present our research into the reduction of vibrations in induction motors. The use of power inverters results in the generation of electrical harmonics, which increase the level of the mechanical vibrations of electrical machines. To reduce these harmonics, we present a discontinuous pulse-width modulation (PWM) control strategy based on carrier-wave modulation applied to multilevel inverters. Using the proposed modulation technique, the amplitude of the electrical harmonics is reduced, as compared to other conventional techniques. These current harmonics produce the MMF (magnetomotive force) harmonics in the air gap, which are one of the main sources of vibrations. The control strategy makes it possible to vary the electrical spectrum at the output of a multilevel inverter by modifying a control parameter of the carrier wave in the PWM, thus avoiding the natural frequencies of mechanical resonance. The proposed technique also has the feature of attenuating the total harmonics distortion of the voltage of the multilevel inverters, as well as the achievement of a higher RMS value of the output voltage for the same DC level. Laboratory results for an induction motor with different modulation strategies, applied in a multilevel inverter and compared to the strategy presented, are attached.

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Output-feedback control of a grid-connected photovoltaic system based on a multilevel flying-capacitor inverter with power smoothing capability

Khlifi,

Magri,

Lajouad

et al. 2024

ISA Transactions

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Lyapunov-based model predictive control for a single-phase grid-connected cascaded multilevel asymmetrical inverter

Cited by 6 publications

References 23 publications

Pulse-Width Modulation Technique With Harmonic Injection in the Modulating Wave and Discontinuous Frequency Modulation for the Carrier Wave for Multilevel Inverters: An Application to the Reduction of Acoustic Noise in Induction Motors

Pulse-Width Modulation Technique With Harmonic Injection in the Modulating Wave and Discontinuous Frequency Modulation for the Carrier Wave for Multilevel Inverters: An Application to the Reduction of Acoustic Noise in Induction Motors

Discontinuous PWM Strategy with Frequency Modulation for Vibration Reduction in Asynchronous Machines

Output-feedback control of a grid-connected photovoltaic system based on a multilevel flying-capacitor inverter with power smoothing capability

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