Results 121 to 130 of about 329 (152)

Real solution number of the nonlinear equations in the SHEPWM technology

2010 International Conference on Intelligent Control and Information Processing, 2010
This paper studied the real solution number of the switch angles for the inverters which are based on the Selective Harmonic Eliminated PWM (SHEPWM) technology. By the method of variable substitution, the nonlinear transcendental equations can be transformed to a Semi-Algebraic system.
Kehu Yang, Siyao Fu, Haidong Hu, Ruyi Yuan, Wensheng Yu   +4 more
openaire   +1 more source

Application of Firefly Algorithm on the SHEPWM strategy for the multilevel inverters

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM), 2014
The aim of this article is the application of a new Metaheuristic algorithm (Firefly Algorithm) for solving a nonlinear algebraic system where the resolution is needed to study the Selective Harmonic Eliminated PWM strategy (SHEPWM); this strategy is applied to multilevel inverters. The Firefly Algorithm (FA), proposed by Xin-She Yang at the University
N. Ould Cherchali, A. Tlemcani, A. Morsli, M.S. Boucherit, L. Barazane   +4 more
openaire   +1 more source

GA-based optimization and ANN-based SHEPWM generation for two-level inverter

2015 IEEE International Conference on Industrial Technology (ICIT), 2015
Selective harmonic elimination (SHE) is a well-known PWM technique applied voltage source inverters (VSI) to control fundamental voltage and eliminate chosen harmonics. This technique requires the determination of optimum switching angles by solving the nonlinear equation set and a look-up table stored the switching times in a real-time application ...
Erkan Deniz, Ömür Aydogmus, Zafer Aydogmus   +2 more
openaire   +2 more sources

Performance Analysis of SHEPWM Based on GA and PSO for CMLI

2019
Multilevel inverters are gaining much greater attention lately as a result of increasing demand for high power inverter units in the industrial applications. Reduction of harmonics and minimizing the THD from the MLI output is considered as a very important task in order to achieve the better performance and to prevent the device from getting damaged ...
B. R. Vishwanath, P. S. Puttaswamy
openaire   +1 more source

Dead-Time Elimination Method of High Frequency Inverter with SHEPWM

2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2019
Selective harmonic elimination pulse width modulation(SHEPWM) inverter can eliminate harmonic effectively in theory, but dead-time increases the harmonic component in output voltage. Based on its operating principle, the advance-off mode is taken as an example to analyze the influence of dead-time on SHEPWM inverter, and the waveform figures and output
Yaodong Yang, Yu Tang, Yongjian Li
openaire   +1 more source

Neutral-Point Potential Balancing Control Strategy of Three-Level Active NPC Inverter Based on SHEPWM

IET Power Electronics, 2017
Xinghuo Yu, Hu Cungang, Qunjing Wang
exaly   +1 more source

Multi-mode SHEPWM with low switch frequency for traction application

2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017
To eliminate current harmonics and improve voltage utilization. When traction motor was run in high speed area, a new method is proposed that solve the harmonics component is high and transition which from SPWM to SHEPWM then to six-step mode on the condition of low switch frequency. The method was introduced, principles were analyzed and formulas were
Guibin Li, Zedong Zheng, Yongdong Li, Zhiguo Wang, Mengting Tnag   +4 more
openaire   +1 more source

Design and implementation of single-phase modified SHEPWM unipolar inverter

2015 IEEE Conference on Energy Conversion (CENCON), 2015
Nowadays, the main target of industrial power and the utility is to save the electrical energy. With the modern industrial system such variable speed drives of the inverter, the system becomes more efficient and the control becomes way simpler. However, it will affect the harmonic in the system and gives an impact to the whole system performance.
M.Z. Aihsan, R.B. Ali, J.H. Leong
openaire   +1 more source

A simplified rational representation for positive-dimensional polynomial systems and SHEPWM equations solving

Journal of Systems Science and Complexity, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bao-Xin Shang, Shugong Zhang, Chang Tan, Peng Xia 0002   +3 more
openaire   +1 more source

Shaft voltage suppression for inverter-driven induction motor applying SHEPWM

2008 IEEE Vehicle Power and Propulsion Conference, 2008
In order to reduce the common mode (CM) voltage and shaft voltage for induction motor driven by inverter, an Improved Selective Harmonics Elimination Pulse Width Modulation (ISHEPWM) method was proposed in this paper. First ISHEPWM eliminates certain low order components of common mode voltage (CMV) generated by inverter.
Yu-lin Zhong, Zheng-ming Zhao
openaire   +1 more source