Pulse-based dead-time compensation method for self-balancing space vector pulse width-modulated scheme used in a three-level inverter-fed induction motor drive

Patel, Pinkal; Patel, Viral; Tekwani, P. N.

doi:10.1049/iet-pel.2009.0292

Cited by 46 publications

(27 citation statements)

References 20 publications

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“…There are some challenges on the dead time compensation in the deep modulation regions with conventional pulse width based approaches as discussed in [8]. The basic idea behind the pulse width based dead time compensation is to directly extend or shorten the corresponding pulses according to the load current directions and switching state transitions.…”

Section: Regionmentioning

confidence: 99%

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Vector based dead-time compensation for a three-level T-type converter

Xiong

Düşmez

Akin

et al. 2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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This paper proposes a new vector based dead time compensation method for a three-level T-type converter. The origin of the dead time voltage error is analyzed in detail under different switch commutation processes and load conditions. Based on the dead time voltage error for each phase, an error voltage vector is defined to indicate the effect of the dead time on the reference voltage vector from vector synthesis point of view. To cancel the dead time error voltage vector, the reference voltage vector is adjusted accordingly based on load current directions. Different from the studies presented in literature, the operation of the proposed dead time compensation method can be extended to over modulation region. The effectiveness and the advantages of the proposed vector based dead time compensation method are verified by both simulation and experimental results.978-1-4799-6735-3/15/$31.00 ©2015 IEEE

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Section: Regionmentioning

confidence: 99%

“…Nevertheless, variable switching frequency control raises challenges on the design of the EMI filters, and introduces additional current harmonics. Few papers [8], [9] discussed the dead time compensation for three-level voltage source converters. The proposed strategies encounter the same issues mentioned above.…”

Section: Introductionmentioning

confidence: 99%

Vector based dead-time compensation for a three-level T-type converter

Xiong

Düşmez

Akin

et al. 2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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show abstract

“…1. input voltage source: V in = 100 V; 2. impedance network: L 1 = L 2 = 2 mH, C 1 = C 2 = 800 μF; 3. output LC filter: L f = 2 mH, C f = 1 μF; 4. resistive load: R = 10 Ω; Firstly, we can find the boost factor B using (8), and then the time duration of every vector, and finally the switching time of each switch for the three patterns can be figured out through Equations (22), (24), and (25) and Figure 6. The modulation schemes have also been tested on the laboratory setup.…”

Section: Simulation and Experimental Verificationmentioning

confidence: 99%

“…With the fast development of signal processing techniques, space vector pulse-width-modulation (SVPWM) technique has already become one of the most important modulation methods for threephase inverters and rectifiers because of its easy digital implementation, flexible algorithm, and wide linear modulation range [20][21][22][23][24][25]. To date, the implementation schemes of SVPWM technique for three-phase ZSI has been discussed in [26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Space vector pulse‐width modulation for single‐phase full‐bridge Z‐source inverter

Zhao

Tseng

et al. 2013

Circuit Theory & Apps

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The space vector pulse-width-modulation technique is extensively applied in the three-phase power electronics circuits because of its easy digital implementation and wide linear modulation range features. However, the attempt of this technique for the single-phase Z-source inverter has seldom been reported because of its unique topology and operational characteristics. In this paper, based on an in-depth mathematical derivation and theoretical explanation, the space vector pulse-width-modulation principles have been discussed in detail. Various implementation schemes are demonstrated, and a comparison study for selected switching patterns is conducted. In addition, the theoretical analysis is validated by both the simulation and experimental results. This work will be helpful for understanding the space vector pulse-width-modulation concept and modulation techniques of the single-phase full-bridge Z-source inverters. Figure 2. Single-phase full-bridge Z-source inverter. (a) Typical topology; (b) equivalent circuit in shootthrough state; (c) equivalent circuit in non-shoot-through state. 376 K. YU ET AL.

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“…These methods can be divided into two main groups. The first group is based on the modification of pulse width modulation (PWM) signals [6]- [8]. Most methods in this group are dependent on the precise detection of current polarity.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Compensation Control of Dead-Time Effect on Space Vector PWM

Shi¹,

Li²

2015

Journal of Power Electronics

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Dead-time element must be set into space vector pulsed width modulation signals to avoid short circuits of the inverter. However, the dead-time element distorts the output voltage vector, which deteriorates the performance of electrical machine drive system. In this paper, dead-time effect and its compensation control strategy are analyzed. Based on the analysis, the voltage distortion caused by dead-time is regarded as two disturbances imposed on dq axes in the rotor reference frame, which degenerates the current tracking performance. To inhibit the adverse effect caused by the dead-time, a control scheme using two linear extended state observers is proposed. This method provides a strong ability to suppress dead-time effects. Simulations and experiments are conducted on a permanent magnet synchronous motor drive system to demonstrate the effectiveness of the proposed method.

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Pulse-based dead-time compensation method for self-balancing space vector pulse width-modulated scheme used in a three-level inverter-fed induction motor drive

Cited by 46 publications

References 20 publications

Vector based dead-time compensation for a three-level T-type converter

Vector based dead-time compensation for a three-level T-type converter

Space vector pulse‐width modulation for single‐phase full‐bridge Z‐source inverter

Analysis and Compensation Control of Dead-Time Effect on Space Vector PWM

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