ANN control of nine level NPC voltage inverter based on selective harmonics elimination

Khoukha, I.; Hachemi, C.; Madjid, Berkouk El

doi:10.1109/acemp.2007.4510573

Cited by 9 publications

(5 citation statements)

References 8 publications

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“…Update the switching angles i.e. e(k + 1) = e(k) + t1e(k) 6. Perform e(k + 1) = oos-1 [abs(oos(e(k + 1)))]…”

Section: Newton-raphson Methodsmentioning

confidence: 99%

“…Common ones are diode-clamped, flying capacitor or multicell, cascaded H-bridge, and multilevel, modified H-bridge [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…Transcendental equations converted into polynomial equations are then solved via the method of resultants from the elimination theory proposed in [5]. Neural network has been investigated by [6,7]. Newton-Raphson method can be used to solve the non-linear equations ofOHESW technique [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Novel fundamental-frequency-modulated modified H-bridge single-phase seven-level inverter for stand-alone photovoltaic system

Krismadinata

Rahim

Selvaraj

2011

2011 IEEE Conference on Clean Energy and Technology (CET)

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This paper describes a strategy to optimize the switching angle of a novel modified "-bridge single-phase seven level inverter for stand-alone photovoltaic (PV) system. The inverter comprises a conventional "-bridge inverter and two bidirectional switches. It can generate seven-level output voltage level, namely +Vdc, +2/3Vdc, +1I3Vdc, 0, -1I3Vdc, -2/3Vdc andVdc. Optimized Harmonic Elimination Stepped Waveform (OHESW) technique was employed to improve the output waveform quality. Newton-Raphson method is engaged to solve the transcendental equations from OHESW technique which produces all possible solutions with any random initial guess. Among which sets, the one producing the least output-voltage THD was chosen. Computation resulting from the optimized switching angle was simulated. A small-scale laboratory prototype was built and tested. Its results indicated the proposed method's effectiveness and the application feasibility of the fundamental frequency switching.

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“…Update the switching angles i.e. e(k + 1) = e(k) + t1e(k) 6. Perform e(k + 1) = oos-1 [abs(oos(e(k + 1)))]…”

Section: Newton-raphson Methodsmentioning

confidence: 99%

“…Common ones are diode-clamped, flying capacitor or multicell, cascaded H-bridge, and multilevel, modified H-bridge [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Novel fundamental-frequency-modulated modified H-bridge single-phase seven-level inverter for stand-alone photovoltaic system

Krismadinata

Rahim

Selvaraj

2011

2011 IEEE Conference on Clean Energy and Technology (CET)

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“…The architecture consists of a single-hidden layer with 20 neurons and the activation function is chosen to be a binary threshold function that introduces a nonlinearity in the structure. The same approach was applied in [145]- [146]. The inverter in [145] consists of two cascaded modified PUC7 that generates 49-levels Asymmetrical MLI where one hidden layer with 10 neurons was used to estimate 24 angles.…”

Section: Figure 17 Synoptic Of the Proposed Auto-tuning Algorithmmentioning

confidence: 99%

“…The inverter in [145] consists of two cascaded modified PUC7 that generates 49-levels Asymmetrical MLI where one hidden layer with 10 neurons was used to estimate 24 angles. In [146], ANN is implemented to reduce the required memory size and computing time in the selective harmonics' elimination technique for 9-levels NPC.…”

Section: Figure 17 Synoptic Of the Proposed Auto-tuning Algorithmmentioning

confidence: 99%

Review on Single-DC-Source Multilevel Inverters: Voltage Balancing and Control Techniques

Trabelsi

Alquennah

Vahedi³

2022

IEEE Open J. Ind. Electron. Soc.

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Nowadays, Single-DC-Source Multilevel Inverter (SDCS-MLI) topologies are being considered as more suitable for many power system applications such as Renewable Energy (RE) conversion systems and electrified transportations compared to the Multiple-DC-Source MLIs (MDCS-MLIs). Voltage balancing of the auxiliary capacitors in those configurations is a major matter of concern. Different techniques have been developed to overcome this issue that can be mainly categorized as internal controller-based and external controller-based techniques. In the former techniques, the redundant switching states help balancing the capacitors voltages. On the other hand, the latter techniques involve external regulators to balance the capacitors' voltages. This paper analyzes most of the existing techniques to control and balance the capacitors voltages in SDCS-MLIs, such as PWM, SVM, Hysteresis control, MPC, sliding mode, and Artificial Intelligence (AI) based control techniques. Furthermore, a comprehensive comparison is presented to illustrate the advantages/disadvantages of each technique. Finally, some industrial challenges and future works are projected.

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Elimination of Harmonics in Photovoltaic Seven-level Inverter with Newton-raphson Optimization

Krismadinata

Rahim

Ping

et al. 2013

Procedia Environmental Sciences

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ANN control of nine level NPC voltage inverter based on selective harmonics elimination

Cited by 9 publications

References 8 publications

Novel fundamental-frequency-modulated modified H-bridge single-phase seven-level inverter for stand-alone photovoltaic system

Novel fundamental-frequency-modulated modified H-bridge single-phase seven-level inverter for stand-alone photovoltaic system

Review on Single-DC-Source Multilevel Inverters: Voltage Balancing and Control Techniques

Elimination of Harmonics in Photovoltaic Seven-level Inverter with Newton-raphson Optimization

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