A General PWM Strategy for Four-Switch Three-Phase Inverters

Corrêa, Maurício Beltrão de Rossiter; Jacobina, Cursino B.; Silva, E.R.C. da; Lima, A.M.N.

doi:10.1109/tpel.2006.882964

Cited by 221 publications

(40 citation statements)

References 10 publications

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“…Traditional DCC (direct current control) technique employs current hysteresis control [3,10]. Normally, sixpossible voltage space vectors of four-switch topology are supposed to be used in Table 2 as shown in Figs.…”

Section: Optimal Switching Tablementioning

confidence: 99%

A Novel Space Vector modulation Scheme and Direct Torque Control for Four-switch BLDCM Using Flux Observer

Pan¹,

Wang²,

Su³

et al. 2015

Journal of Electrical Engineering and Technology

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-The main purpose of this paper is to describe a DTC (direct torque control) method for four-switch brushless dc motor (BLDCM) drive. In the method, a novel voltage space vector modulation scheme, an optimal switching table, and a flux observation method are proposed. Eight voltage vectors are summarized, which are selected to control BLDCM in SVPWM pattern, and an optimal switching table is proposed to improve the torque distortion caused by midpoint current of the split capacitors. Unlike conventional flux observers, this observer does not require speed adaptation and is not susceptible to speed estimation errors, especially, at low speed. Global asymptotic stability of the flux observer is guaranteed by the Lyapunov stability analysis. DC-offset effects are mitigated by introducing a PI component in the observer gains. This method alleviates the undesired current and torque distortion which is caused by uncontrollable phase. The correctness and feasibility of the method are proved by simulation and experimental results.

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Section: Optimal Switching Tablementioning

confidence: 99%

A Novel Space Vector modulation Scheme and Direct Torque Control for Four-switch BLDCM Using Flux Observer

Pan¹,

Wang²,

Su³

et al. 2015

Journal of Electrical Engineering and Technology

View full text Add to dashboard Cite

show abstract

“…The traditional direct current control (DCC) technique employs current hysteresis control [6], [15]. Six possible voltage space vectors of four-switch topology should be generally used in Table II, as shown in Figs.…”

Section: Torque Ripple Suppression For Fstpi Bldcm Drivementioning

confidence: 99%

Torque Ripple Suppression Method for BLDCM Drive Based on Four-Switch Three-Phase Inverter

Pan¹,

Sun²,

Wang³

et al. 2015

Journal of Power Electronics

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A novel inverter fault-tolerant control scheme is proposed to drive brushless DC motor. A fault-tolerant inverter and its three fault-tolerant schemes (i.e., phase A fault-tolerant, phase B fault-tolerant, and phase C fault-tolerant) are analyzed. Eight voltage vectors are summarized and a voltage vector selection table is used in the control scheme to improve the midpoint current of the split capacitors. A stator flux observer is proposed. The observer can improve flux estimation, which does not require any speed adaptation mechanism and is immune to speed estimation error. Global stability of the flux observer is guaranteed by the Lyapunov stability analysis. A novel stator resistance estimator is incorporated into the sensorless drive to compensate for the effects of stator resistance variation. DC offset effects are mitigated by introducing an integral component in the observer gains. Finally, a control system based on the control scheme is established. Simulation and experiment results show that the method is correct and feasible.

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“…The SVM schemes discussed in [10]- [18] are classified into three major categories: SVM schemes with the zero vectors synthesized by two short vectors (SVSVM) [11]- [13], [16]- [18], SVM schemes with the zero vectors synthesized by two long vectors (LVSVM) [14], [15] and SVM schemes with the reference vector synthesized by the nearest three vectors (NTSVM) [10]. The essential difference between these three SVM strategies is the zero vector synthesis method.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis and Comparison of Post-Fault PWM Rectifiers Using Various Space Vector Modulation Methods

Zhu¹,

Zeng²,

Zhao³

2016

Journal of Power Electronics

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In this paper, some crucial performance characteristics related to the operational reliability of the post-fault Pulse Width Modulated (PWM) rectifiers, such as line current harmonic distortion, Common Mode Voltage (CMV), and current stress on the capacitors, are fully investigated. The aforementioned performance characteristics of post-fault rectifiers are highly dependent on the utilized space vector modulation (SVM) schemes, which are also examined. Detailed analyses of the three most commonly used SVM schemes for post-fault PWM rectifiers are provided, revealing the major differences in terms of the zero vector synthesis approaches. To compare the performances of the three SVM schemes, the operating principles of a post-fault rectifier are presented with various SVM schemes. Using analytical and numerical methods in the time domain, the performances of the line current distortion, common mode voltage and capacitor current are evaluated and compared for each SVM scheme. The proposed analysis demonstrates that the zero vector synthesis approaches of the considered methods have significant impacts on the performance characteristics of rectifiers. In addition, the advantages and disadvantages of the proposed SVM schemes are discussed. The experimental results verify the effectiveness and validity of the proposed analysis.

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A General PWM Strategy for Four-Switch Three-Phase Inverters

Cited by 221 publications

References 10 publications

A Novel Space Vector modulation Scheme and Direct Torque Control for Four-switch BLDCM Using Flux Observer

A Novel Space Vector modulation Scheme and Direct Torque Control for Four-switch BLDCM Using Flux Observer

Torque Ripple Suppression Method for BLDCM Drive Based on Four-Switch Three-Phase Inverter

Performance Analysis and Comparison of Post-Fault PWM Rectifiers Using Various Space Vector Modulation Methods

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