Harmonics mitigation and stability analysis of DTC motor drives in MVDC systems

Liu, Hanchao; Liang, Jiaqi; Li, Qi

doi:10.1109/ecce.2015.7310105

Cited by 3 publications

(2 citation statements)

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“…To save energy, extend motors' operation life and performance optimization, VSDs are the best choice in the industry. On the other hand, in the power quality point of view, VSDs as any power electronic devices integrated into grid produce distortions since they have non-linear loads into electric power systems that has become a serious issue in recent years [1], [2]. Power quality requirements of loads that have over 100% current total harmonic distortions (THD) may not be precisely regul ated [3].Moreover, harmonics affect power factor as shown in [4].…”

Section: Introductionmentioning

confidence: 99%

“…Because of the nonlinear characteristics of DTC, its DC-side harmonics spectrum is much different from that of PWM, as it does not have a deterministic model for its harmonics patterns [13]. A probabilistic AC-side voltage harmonics model was proposed in [2]. Also, DTC suffers from high harmonic currents which degrades its performance and affects the power quality of the system [14].…”

Section: Introductionmentioning

confidence: 99%

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Harmonics Distortion in Inverter-Fed Motor-Drive Systems: Case Study

Heidari

Rassõlkin

Kallaste

et al. 2019

2019 Electric Power Quality and Supply Reliability Conference (PQ) &Amp; 2019 Symposium on Electrical Engineering and Mechatron

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Current and voltage harmonics lead to iron losses in motors. As the iron losses have the largest portion of total losses in many motors, harmonic analysis of motors is of paramount importance. In this study, we compared the new designed permanent magnet assisted synchronous reluctance motor (PMSynRM) and synchronous reluctance motor (SynRM) with an industrial induction motor (IM) in terms of harmonic currents and harmonic voltages. To investigate the performance of the motors in terms of harmonic distortion, an industrial frequency converter based on direct torque control (DTC) strategy is adopted. The study shows the high harmonic injection of frequency converter to the system.

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Section: Introductionmentioning

confidence: 99%