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Dillon O?Reilly, Georg Herdrich, Felix Schäfer, Christoph Montag, Simon P. Worden, Peter Meaney and Darren F. Kavanagh
Pulsed plasma thrusters (PPT) have demonstrated enormous potential since the 1960s. One major shortcoming is their low thrust efficiency, typically <30%. Most of these losses are due to joule heating, while some can be attributed to poor efficiency of th...
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Xiangsuo Fan, Xiaokang Chen, Wenhao Xu, Lingping Feng, Ling Yu and Haohao Yuan
In this paper, we propose a new filtering switch with excellent working performance made using an optimized coupled microstrip line. Upon analyzing the RF (radio frequency) front-end?s system structure, the switching device was simplified to a diode, whi...
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Weiguang Zheng, Quanfu Geng, Xiaohong Xu and Zhixiang Liu
The permanent-magnet synchronous motor (PMSM), with the advantages of low energy consumption and stable operation, is considered a green power source to replace gasoline engines. Motor control is the core problem of the electric-drive system, so it is im...
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Mu Anas, Adil Sarwar, Anzar Ahmad, Afroz Alam, Shafiq Ahmad, Mohamed Sharaf, Mazen Zaindin and Muhammad Firdausi
The apparent advantages of Multilevel Inverter (MLI) topologies in handling medium and high power with less loss in switching and lower harmonic distortion in an output voltage waveform makes it better than the conventional inverter. However, the MLI top...
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Mahdi Rezapour and Khaled Ksaibati
The Wyoming Department of Transportation (WYDOT) initiated a project to optimize the heights of barriers that are not satisfying the barrier design criteria, while prioritizing them based on an ability to achieve higher monetary benefits. The equivalent ...
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Quanbo Yuan, Huijuan Wang, Botao Wu, Yaodong Song and Hejia Wang
In order to achieve more efficient energy consumption, it is crucial that accurate detailed information is given on how power is consumed. Electricity details benefit both market utilities and also power consumers. Non-intrusive load monitoring (NILM), a...
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Mohammed Al-Hitmi, Salman Ahmad, Atif Iqbal, Sanjeevikumar Padmanaban and Imtiaz Ashraf
Considering the aim of having low switching losses, especially in medium-voltage and high-power converters, the pre-programmed pulse width modulation technique is very useful because the generated harmonic content can be known in advance and optimized. A...
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Xiongmin Tang, Junhui Zhang, Zheng Liu and Miao Zhang
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 a'ß' coordinate system, in which the voltage vectors have only int...
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