Torque Ripple and Harmonic Current Reduction in a Three-Level Inverter-Fed Direct-Torque-Controlled Five-Phase Induction Motor

Tatte, Yogesh; Aware, Mohan V.

doi:10.1109/tie.2017.2677346

Cited by 83 publications

(65 citation statements)

References 25 publications

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“…The ST-DTC approach has straightforward and simple structure, but it is completely overshadowed by low-order harmonics due to unused voltage vectors in the losses subspaces. To overcome this restriction, the idea of duty cycle control is introduced by several researchers [12,13].…”

Section: Introductionmentioning

confidence: 99%

A Parallel Estimation System of Stator Resistance and Rotor Speed for Active Disturbance Rejection Control of Six-Phase Induction Motor

et al. 2020

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In this paper, a parallel estimation system of the stator resistance and the rotor speed is proposed in speed sensorless six-phase induction motor (6PIM) drive. First, a full-order observer is presented to provide the stator current and the rotor flux. Then, an adaptive control law is designed using the Lyapunov stability theorem to estimate the rotor speed. In parallel, a stator resistance identification scheme is proposed using more degrees of freedom of the 6PIM, which is also based on the Lyapunov stability theorem. The main advantage of the proposed method is that the stator resistance adaptation is completely decoupled from the rotor speed estimation algorithm. To increase the robustness of the drive system against external disturbances, noises, and parameter uncertainties, an active disturbance rejection controller (ADRC) is introduced in direct torque control (DTC) of the 6PIM. The experimental results clarify the effectiveness of the proposed approaches.

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Section: Introductionmentioning

confidence: 99%

A Parallel Estimation System of Stator Resistance and Rotor Speed for Active Disturbance Rejection Control of Six-Phase Induction Motor

et al. 2020

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“…Since in DTC controlled FPIM hysteresis torque comparator is implemented, torque ripple is generated. Various methods are employed for torque ripple minimisation [7], [18]. In [7], modified five-level torque comparator (FLTC) is presented so that the torque ripple is reduced.…”

Section: Introductionmentioning

confidence: 99%

Performance improvement of direct torque controlled five‐phase induction motor in context of common‐mode voltage, torque ripple and demagnetisation under low speed region

Tatte

Aware

Singh

2020

IET Power Electronics

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This study focuses on the performance improvement of direct torque controlled (DTC) five-phase induction motor (FPIM). The performance indices are common-mode voltage (CMV), torque ripple and demagnetisation during low-speed operation. The three-level five-phase inverter (TL-FPI) is used for feeding the FPIM, since more voltage vectors are available in TL-FPI than its two-level counterpart. Among available 243 voltage vectors, 41 non-vertex voltage vectors are employed. These 41 voltage vectors through seven-level torque comparator (SLTC) fires an inverter. The SLTC reduces the torque ripple. All the employed 41 voltage vectors have zero CMV output. The voltage vectors are selected so that the magnitude of radial component of the resultant stator flux under low-speed operation is more than the same under normal speed operation. This modification resolves the problem of demagnetisation during low-speed operation. The proposed method achieves the intended targets without losing simplicity and dynamics of the classical DTC method. The performance improvement of the five-phase machine is validated through several results.

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“…The motor control configuration usually involves field‐oriented control (FOC) or direct torque control (DTC) for three‐phase or multiphase machines. However, DTC is a more popular and widely adopted choice due to various reasons, explored by researchers 22‐27 …”

Section: Introductionmentioning

confidence: 99%

“…However, DTC is a more popular and widely adopted choice due to various reasons, explored by researchers. [22][23][24][25][26][27] The effect of such voltage disturbance condition can be catastrophic for multiphase drives, implemented for sensitive applications. Thus, a proper control function with an appropriate converter configuration for such drive systems accounting the mitigation of such adverse supply effects is of prime importance.…”

mentioning

confidence: 99%

Performance evaluation of controlled QZSI fed five‐phase induction motor under voltage sag and interruption

Panda

Pandey

2019

Int Trans Electr Energ Syst

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Summary This paper proposes a dynamic evolution control (DEC)–based quasi‐Z‐source inverter (QZSI) fed five‐phase induction motor (IM) drive system for nonideal supply voltage conditions. Since, multiphase drives are mostly applicable for sensitive applications, disturbances in the form of voltage sag and interruption is a serious issue. A QZSI offers significant advantages over conventional inverter, such as boost in output direct current (DC) voltage (VO), utilization of shoot‐through state of inverter switches, and delay time avoidance between switches of inverter's each leg. These advantages are effectively utilized with proposed DEC (a nonlinear control function) based duty cycle “D” generation method. “D” is then integrated with space vector modulation (SVM) scheme for direct torque control (DTC) of five‐phase IM drive. A comparative experimental analysis of proposed drive system is presented under different voltage sag conditions, ie, types A, B, and C. Also, a simulation approach is presented for the drive system with an independent external source under voltage interruption condition, which is mostly a follow up phenomena for voltage sag.

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Torque Ripple and Harmonic Current Reduction in a Three-Level Inverter-Fed Direct-Torque-Controlled Five-Phase Induction Motor

Cited by 83 publications

References 25 publications

A Parallel Estimation System of Stator Resistance and Rotor Speed for Active Disturbance Rejection Control of Six-Phase Induction Motor

A Parallel Estimation System of Stator Resistance and Rotor Speed for Active Disturbance Rejection Control of Six-Phase Induction Motor

Performance improvement of direct torque controlled five‐phase induction motor in context of common‐mode voltage, torque ripple and demagnetisation under low speed region

Performance evaluation of controlled QZSI fed five‐phase induction motor under voltage sag and interruption

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