Space vector PWM control of dual three-phase induction machine using vector space decomposition

Zhao, Yifan; Lipo, T.Α.

doi:10.1109/28.464525

Cited by 993 publications

(68 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where α-β components are related with the flux/torque generation, x-y components produce copper losses, and the isolated neutral points simplify the analysis and avoid triples stator current harmonics. Based on this fact, the vector space decomposition (VSD) approach is usually applied to define the six-phase IM as follows [18]:…”

Section: Vv-mpc With Natural Fault Tolerancementioning

confidence: 99%

Efficient Model Predictive Control with Natural Fault-Tolerance in Asymmetrical Six-Phase Induction Machines

et al. 2019

View full text Add to dashboard Cite

Multiphase machines allow enhancing the performance of wind energy conversion systems from the point of view of reliability and efficiency. The enhanced robustness has been traditionally achieved with a mandatory post-fault control reconfiguration. Nevertheless, when the regulation of x-y currents in multiphase drives is done in open-loop mode, the reconfiguration can be avoided. As a consequence, the reliability of the system increases because fault detection errors or delays have no impact on the post-fault performance. This capability has been recently defined as natural fault tolerance. From the point of view of the efficiency, multiphase machines present a better power density than three-phase machines and lower per-phase currents for the same voltage rating. Moreover, the implementation of control strategies based on a variable flux level can further reduce the system losses. Targeting higher reliability and efficiency for multiphase wind energy conversion systems, this work proposes the implementation of an efficient model predictive control using virtual voltage vectors for six-phase induction machines. The use of virtual voltage vectors allows regulation of the x-y currents in open-loop mode and achieving the desired natural fault tolerance. Then, a higher efficiency can be achieved with a simple and universal cost function, which is valid both in pre- and post-fault situations. Experimental results confirm the viability and goodness of the proposal.

show abstract

Section: Vv-mpc With Natural Fault Tolerancementioning

confidence: 99%

Efficient Model Predictive Control with Natural Fault-Tolerance in Asymmetrical Six-Phase Induction Machines

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The past two decades have witnessed numerous developments of state-of-the-art VSD control strategies, they mainly treat the machine as an integral six-phase system [15][16][17][18][19][20]. Supposing the coordinate transformation matrix follows the principle of amplitude equivalence, the 64 fundamental vectors exhibit five different magnitudes on the α-β sub-plane: 0.644U d (large vectors), 0.4714U d (medium vectors), 0.2066U d (small vectors), 0.1725U d (ultra-small vectors), and 0 (zero vectors), where U d denotes the DC-bus voltage of inverter.…”

Section: Introductionmentioning

confidence: 99%

“…. , harmonic elements [16]. The key idea is that the α-β sub-plane is divided into 12 equal but non-overlapping sectors, and in each sector, five vectors (i.e., four adjacent large vectors and one zero vector, where their vector synthesized results on the z 1 -z 2 sub-plane equals to zero) are selected to track the reference vectors.…”

Section: Introductionmentioning

confidence: 99%

“…SVPWM was directly applied in six-phase motor systems, this method could track reference vectors on α-β sub-plane precisely, but leaving the harmonic elements on z1-z2 sub-plane unconsidered. Innovatively, a classical VSD-base SVPWM strategy (hereafter is referred to C-SVPWM) was proposed to limit the 5th, 7th, 17th, 19th…, harmonic elements [16]. The key idea is that the α-β sub-plane is divided into 12 equal but non-overlapping sectors, and in each sector, five vectors (i.e., four adjacent large vectors and one zero vector, where their vector synthesized results on the z1-z2 sub-plane equals to zero) are selected to track the reference vectors.…”

Section: Introductionmentioning

confidence: 99%

“…Then 12 mid-vectors with equal magnitude and 30 • phase difference can be obtained, and the reference vector is synthesized by using the 12 mid-vectors and one zero vector. Since the essence of M-SVPWM is the same as that in [16], the limitation of 0.57735U d cannot be broken theoretically. To overcome this barrier, a six-phase pre-synthetic-vector-based SVPWM strategy (hereafter is referred to PS-SVPWM) was proposed in [18].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

et al. 2018

View full text Add to dashboard Cite

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.

show abstract

Multiphase Electric Drives: Introduction

Durán

Levi

Barrero

2017

Wiley Encyclopedia of Electrical and Electronics Engineering

View full text Add to dashboard Cite

The theory of three‐phase electric machines, power converters, and high‐performanceACdrives is typically included in many undergraduate and master engineering curricula. However, the coverage of electric drives with more than three phases (i.e., multiphase) is often absent or limited. This article aims at students and engineers with an electrical engineering background who want to extend their knowledge to multiphase electric drives. The article introduction provides the motivation for their use, some historical data and various examples of industry applications. The modeling of the electric machine, the modulation of the converter, and the high‐performance control of the drive are subsequently revisited, providing a comprehensive explanation of the differences compared to three‐phase systems. A brief up‐to‐date review of the innovative modes of operation that are exclusive to multiphase drives is also included. All the considerations relate to machines with near‐sinusoidal air gap magnetomotive force (MMF) that operate using the principle of the Tesla's rotating field.

show abstract

Space vector PWM control of dual three-phase induction machine using vector space decomposition

Cited by 993 publications

References 8 publications

Efficient Model Predictive Control with Natural Fault-Tolerance in Asymmetrical Six-Phase Induction Machines

Efficient Model Predictive Control with Natural Fault-Tolerance in Asymmetrical Six-Phase Induction Machines

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

Multiphase Electric Drives: Introduction

Contact Info

Product

Resources

About