Space-Vector PWM With Common-Mode Voltage Elimination for Multiphase Drives

López, Oscar L.; Alvarez, J.; Malvar, Jano; Yepes, Alejandro G.; Vidal, Antonio M.; Baneira, Fernando; Pérez-Estévez, Diego; Freijedo, Francisco D.; Doval-Gandoy, Jesús

doi:10.1109/tpel.2016.2521330

Cited by 57 publications

(22 citation statements)

References 40 publications

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“…From (8) to (10), we know that this is a convex quadratic programming (CQP) with equality constraints and inequality constraints. The CQP problem contains two parameters, the magnitude V* and position θ of the reference vector, where, 0.57735Ud ≤ V* ≤ 0.622Ud, 0° ≤ θ ≤ 30°.…”

Section: Six-phase Svpwm Based On Optimization Modelmentioning

confidence: 99%

“…It can be evidently investigated that, the space vector pulse width modulation (SVPWM) is the most widely applied scheme. SVPWM has attractive flexibility for optimizing switching waveforms and is convenient to implement on embedded processors [10,11], as well as its operational advantages over carrier-based techniques (i.e., low total harmonic distortion, high efficiency and voltage available in the DC-link) [12].…”

Section: Introductionmentioning

confidence: 99%

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Optimal Modeled Six-Phase Space Vector Pulse Width Modulation Method for Stator Voltage Harmonic Suppression

et al. 2018

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Dual Y shift 30 • six-phase motors are expected to be extensively applied in high-power yet energy-effective fields, and a harmonic-suppressing control strategy plays a vital role in extending their prominent features of low losses and ultra-quiet operation. Aiming at the suppression of harmonic voltages, this paper proposes a six-phase space vector pulse width modulation method based on an optimization model, namely OM-SVPWM. First, four adjacent large vectors are employed in each of 12 sectors on a fundamental sub-plane. Second, the optimization model is constructed to intelligently determine activation durations of the four vectors, where its objective function aims to minimize the synthesis result on a harmonic sub-plane, and its constraint condition is that the synthesis result on the fundamental sub-plane satisfies a reference vector. Finally, to meet the real-time requirement, optimum solutions are obtained by using general central path following algorithm (GCPFA). Simulation and experiment results prove that, the OM-SVPWM performs around 37% better than a state-of-the-art competitive SVPWM in terms of harmonics suppression, which promise the proposed OM-SVPWM conforms to the energy-effective direction in actual engineering applications.Energies 2018, 11, 2598 2 of 16 As a prominent MMDS, dual Y shift 30 • six-phase motor (DYSM) has gained widespread attention and representative application in high-power yet energy-effective fields, such as electric locomotive traction, ship electric propulsion, wind power generation, etc. [4][5][6]. The stator of a DYSM has an irregular but delicate structure. As shown in Figure 1, the asymmetric six-phase windings of a DYSM are constructed with two sets of three-phase windings, which are arranged with a 30 • spatial electrical angle displacement. This special structure brings the following three typical advantages:(1) With the asymmetric six-phase winding, lower-order harmonic components of the magnetic motive force can be effectively eliminated; (2) With double the number of winding phases, higher power can be transmitted on the same voltage or current level; (3) Continuous operating of DYSMs under phase-deficient conditions is possible. These advantages are highly beneficial to green power and sustainable energy-saving.

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Section: Six-phase Svpwm Based On Optimization Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal Modeled Six-Phase Space Vector Pulse Width Modulation Method for Stator Voltage Harmonic Suppression

et al. 2018

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“…Several topologies for multilevel inverters have been proposed in the past decades, including diode-clamped [9], flying capacitor [1], cascaded H-bridge [10] and modular multilevel [11]. For a given multilevel converter topology, modulation scheme is a key factor [12][13][14][15][16][17]. Among various modulation schemes, space vector pulse width modulation (SVPWM) scheme is an attractive candidate due to its flexibility to optimize switching waveforms and its convenience to be implemented in digital signal processors [1,[12][13][14].…”

Section: Introductionmentioning

confidence: 99%

A Switching Frequency Optimized Space Vector Pulse Width Modulation (SVPWM) Scheme for Cascaded Multilevel Inverters

et al. 2017

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This paper presents a novel switching frequency optimized space vector pulse width modulation (SVPWM) scheme for cascaded multilevel inverters. The proposed SVPWM is developed in a α β coordinate system, in which the voltage vectors have only integer entries and the absolute increment of coordinate values between adjacent vectors is equal to dc-bus voltage of power cells (1 pu). The new SVPWM scheme is built with three categories of switching paths. During each switching path, the change of one phase voltage is limited in 1 pu. This contributes to decrease the number of commutations of switches. The proposed SVPWM scheme is validated on a 7-level cascaded inverter and the results show that it significantly outperforms traditional SVPWM schemes in terms of decreasing the number of switch commutations.

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“…The high frequency, high amplitude and large step size (dv/dt) of CMV produces bearing currents via parasitic capacitances which may lead to insulation and bearing failures [10], mechanical vibration [11] and also bearing undesirable electromagnetic interference (EMI) [12]. Several PWM techniques based on sinusoidal PWM [13][14][15] or SVPWM [16][17][18][19][20] strategies have been applied to reduce the CMV in multiphase systems. The researchers tried to reduce the CMV by phase shifting of carrier signal in control system of five-phase and six-phase (both symmetrical and asymmetrical) two-level voltage source inverters feeding R-L load, which leads to higher phase current harmonic and distortion [13].…”

mentioning

confidence: 99%

“…Chen and Hsieh [16] proposed a pulse-width modulator with minimum CMV for generalized two-level N-phase voltage source inverters with odd phase numbers, and used vectors with minimum CMV. A multidimensional strategy was proposed in literature [17] to eliminate the CMV in generalized multiphase multilevel inverter by selecting switch states with zero CMV. But this method is suitable only for multilevel inverters with a level number higher than three.…”

mentioning

confidence: 99%

Space Vector Pulse Width Modulation with Reduced Common Mode Voltage and Current Losses for Six-Phase Induction Motor Drive with Three-Level Inverter

Zandzadeh

Saniei

Kianinezhad

2020

IJE

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Common-mode voltage (CMV) generated by the inverter causes motor bearing failures in multiphase drives. On the other hand, presence of undesired z-component currents in six-phase induction machine (SPIM) leads to extra current losses and have to be considered in pulse width modulation (PWM) techniques. In this paper, it is shown that the presence of z-component currents and CMV in six phase drive system are two major limiting factors in space vector selection. The calculated voltage space vectors for both symmetrical and asymmetrical SPIM drive system with three-level inverter are illustrated in the decoupled subspaces and described in terms of undesirable voltage components and CMV value. Several space vector pulse width modulation (SVPWM) techniques are investigated based on CMV and z-component currents generation. Then, a modified SVPWM technique with minimum current distortion, undesired current components and CMV with a modest torque ripple is proposed based on the simulation results.

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Space-Vector PWM With Common-Mode Voltage Elimination for Multiphase Drives

Cited by 57 publications

References 40 publications

Optimal Modeled Six-Phase Space Vector Pulse Width Modulation Method for Stator Voltage Harmonic Suppression

Optimal Modeled Six-Phase Space Vector Pulse Width Modulation Method for Stator Voltage Harmonic Suppression

A Switching Frequency Optimized Space Vector Pulse Width Modulation (SVPWM) Scheme for Cascaded Multilevel Inverters

Space Vector Pulse Width Modulation with Reduced Common Mode Voltage and Current Losses for Six-Phase Induction Motor Drive with Three-Level Inverter

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