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In this paper, a novel remedial direct torque control (DTC) scheme is proposed for T type NPC (T- NPC) three-level asymmetric six-phase PMSM drives under open-phase faults. A simplified space vector modulation (SVM) is designed and applied for the DTC controlled asymmetric six-phase drive, in such a way that both good current harmonic performance and small DC link voltage fluctuation are available...
Abstract-Flux-switching permanent-magnet (FSPM) motors are been studied as a promising candidate for many industrial applications, but they suffer from vibration and acoustic noise of electromagnetic origins. This paper proposes a new five-phase fault-tolerant FSPM motor in order to reduce vibration and acoustic noise, which has double fault-tolerant teeth on stator. By cutting down the lowest harmonic...
In this paper, a dual-channel isolated three-phase magnetically integrated chargers (MICs) are presented for plugin electric vehicles. The key is to apply and operate two interleaved power charging circuits, each of which is composed of one dual-active-bridge (DAB) isolated converter and one three-phase grid inverter. The proposed configuration not only offers isolated charging but also provides modular...
The purpose of this paper is to develop a model and propose control strategies to mitigate dc-link current ripple for current-source grid-connected converter (CSGCC) under unbalanced grid conditions. Based on the model of instant active power under unbalanced grid conditions, this paper proposes the optimized negative-sequence current references for eliminating the double-frequency oscillations on...
With the requirement of measurement and the development of electronic technology, the index of distortion measurement technique has a larger increase. How to improve the measurement accuracy and extend the frequency domain is becoming more and more important. The current method of sine waveform distortion measurement is reviewed and the total distortion measurement technique for the sine waveform,...
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