A hybrid space vector modulation for the near‐zero common‐mode voltage and common‐mode current mitigation in diode‐clamped multilevel‐inverter‐fed induction motor drive

Selvaperumal, M.; Kirubakaran, D.; Bharatiraja, C.

doi:10.1002/2050-7038.12535

Cited by 9 publications

(3 citation statements)

References 32 publications

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“…Since the zero state is avoided, CMV is reduced to ±Vdc/6. [94] Three nearest medium vectors (M 3 V)…”

Section: Redundant Vectors Are Removedmentioning

confidence: 99%

“…The CMV is controlled by eliminating some of the vectors which produces CMV. The utilization of one zero vector "ooo" and medium vector for generating the switching sequence will completely eliminate the CMV [86] - [94]. The partial elimination of CMV also possible with modification of SVM techniques.…”

Section: Open End Winding Five Phase Inverter: Figure 64 Five Phase Open End Winding Topologymentioning

confidence: 99%

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A Comprehensive Review on Space Vector Modulation Techniques for Neutral Point Clamped Multi-Level Inverters

2021

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The Neutral Point Clamped (NPC) Multi-Level Inverters (MLI) have been ruling the power electronics industries for the past two decades. The Multi-Carrier Pulse Width Modulation (MCPWM) is common PWM techniques which are widely used in NPC-MLI applications. However, MCPWM is not having a good impact on the balancing of DC-link voltages, Common Mode Voltage (CMV) and limiting the Total Harmonics Distortion (THD). The Selective Harmonic Elimination (SHE) technique is introduced for reducing the THD, however all the switching angles should be maintained less than π/2 to keep the eliminated harmonics at constant level which narrows down the modulation index range. Hence, in recent days Space Vector Modulation (SVM) technique is widely used in NPC-MLI, which gives better DC-link voltage balancing, self-neutral point balancing, near-zero CMV reduction, better-quality harmonics profile and switching loss minimization. Hence, it is a preferred solution for the majority of electrical conversion applications such as electric traction, high power industrial drives, renewable power generation, and gridconnected inverters, etc. The paper gives a comprehensive review of the SVM for NPC-MLI. First, this paper deliberates the state of art for two-level SVM and extends it to three-level (3L) SVM. Also compares the 3L SVM performance with other MCPWM techniques. Followed by the various modified MLI SVM techniques in terms of their implementations, DC-link capacitor balancing, and reduction of CMV. Further, the review of MLI SVM is widened to open-end winding Inverters and multiphase MLIs. The final part of this paper discussed the future trends and research directions on MLI SVM techniques and its applications.

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“…Since the zero state is avoided, CMV is reduced to ±Vdc/6. [94] Three nearest medium vectors (M 3 V)…”

Section: Redundant Vectors Are Removedmentioning

confidence: 99%

Section: Open End Winding Five Phase Inverter: Figure 64 Five Phase Open End Winding Topologymentioning

confidence: 99%

A Comprehensive Review on Space Vector Modulation Techniques for Neutral Point Clamped Multi-Level Inverters

2021

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“…Therefore, random bit number generations need higher circuit cost and implementation burden. Hence, the researchers recommended a linear feedback shift register (LFSR) for getting more randomness [35][36][37][38][39]. LFSR is commonly referred to as a pseudo-PWM code generator and works using a digital logical process of a binary number [29].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Multicarrier Random Space Vector PWM for the Mitigation of Acoustic Noise

Madasamy¹,

Verma

Bharatiraja

et al. 2021

Electronics

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The pulse width modulation (PWM) inverter is an obvious choice for any industrial and power sector application. Particularly, industrial drives benefit from the higher DC-link utilization, acoustic noise, and vibration industrial standards. Many PWM techniques have been proposed to meet the drives’ demand for higher DC-link utilization and lower harmonics suppression and noise reductions. Still, random PWM (RPWM) is the best candidate for reducing the acoustic noises. Few RPWM (RPWM) methods have been developed and investigated for the AC drive’s PWM inverter. However, due to the lower randomness of the multiple frequency harmonics spectrum, reducing the drive noise is still challenging. These PWMs dealt with the spreading harmonics, thereby decreasing the harmonic effects on the system. However, these techniques are unsuccessful at maintaining the higher DC-link utilizations. Existing RPWM methods have less randomness and need complex digital circuitry. Therefore, this paper mainly deals with a combined RPWM principle in space vector PWM (SVPWM) to generate random PWM generation using an asymmetric frequency multicarrier called multicarrier random space vector PWM (MCRSVPWM). he SVPWM switching vectors with different frequency carrier are chosen with the aid of a random bi-nary bit generator. The proposed MCRSVPWM generates the pulses with a randomized triangular carrier (1 to 4 kHz), while the conventional RPWM method contains a random pulse position with a fixed frequency triangular carrier. The proposed PWM is capable of eradicating the high-frequency unpleasant acoustic noise more effectually than conventional RPWM with a shorter random frequency range. The simulation study is performed through MATLAB/Simulink for a 2 kW asynchronous induction motor drive. Experimental validation of the proposed MCRSVPWM is tested with a 2 kW six-switch (Power MOSFET–SCH2080KE) inverter power module-fed induction motor drive.

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Comparative analysis of switching angle calculation methods for multilevel inverters

Muthyala

Dhabale

2021

Int Trans Electr Energ Syst

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Summary A multilevel inverter produces an output to approximate a desired sine wave. The closeness of the output waveform to the sine wave depends on the logic applied for switching angle calculation, resulting in different switching angle calculation methods. In this paper, various switching angle calculation methods are compared based on of the parameters quantifying the quality of the output waveform. The main focus of this work is on the study of convergence of the output waveform to a smooth waveform as number of levels increases theoretically. The convergence is analytically proved and validated numerically by computing up to 201 levels. Also, a parameter quantifying the deviation of the output waveform from the sine wave is defined, and its closed form expression is derived. This parameter is strongly correlated to and computationally less expensive than the total harmonic distortion. Hence, the deviation is proposed as a better measure of the quality of the output wave form. The convergence and the deviation of the output waveform are also used as the basis of the comparison of different switching angle calculation methods. These two give a better insight into the switching angle calculation methods. The analysis presented in this paper provides a good understanding of various switching angle computation methods and helps in choosing an appropriate method for a given application.

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A hybrid space vector modulation for the near‐zero common‐mode voltage and common‐mode current mitigation in diode‐clamped multilevel‐inverter‐fed induction motor drive

Cited by 9 publications

References 32 publications

A Comprehensive Review on Space Vector Modulation Techniques for Neutral Point Clamped Multi-Level Inverters

A Comprehensive Review on Space Vector Modulation Techniques for Neutral Point Clamped Multi-Level Inverters

Hybrid Multicarrier Random Space Vector PWM for the Mitigation of Acoustic Noise

Comparative analysis of switching angle calculation methods for multilevel inverters

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