نتایج جستجو برای: thd

تعداد نتایج: 1651  

A new optimization method is proposed in this paper for finding the firing angles in multi-level voltage source inverters to eliminate low-order selective harmonics and reduce total harmonic distortion (THD) value of the output voltage. For thid end, Fourier series is used for calculating objective function and selecting specific harmonics. Regarding the nature and complexity of the employed no...

Journal: :Bulletin of Electrical Engineering and Informatics 2022

Renewable energy sources are developed as a result of the increased demand for electrical power. The nature solar source is DC. DC many applications needs to be converted AC. inverter used convert power from Total harmonic distortion (THD) significant concern with inverters. Multi-level inverters reduce THD. stair output voltage multi-level not only reduces THD but also switches' stresses, so l...

Journal: :Microsystems, Electronics and Acoustics 2020

A. A. Khodadoost Arani, A. Khoshsaadat, G. B. Gharehpetian, J. S. Moghani,

Multilevel voltage source inverters have several advantages compare to traditional voltage source inverter. These inverters reduce cost, get better voltage waveform and decrease Total Harmonic Distortion (THD) by increasing the levels of output voltage. In this paper Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) methods are used to find the switching angles for achieving to the m...

Journal: :IEEJ Transactions on Electronics, Information and Systems 1987

Journal: :Renewable Energy and Power Quality Journal 2006

2013
Shigenori Honda Hiroko Shirotani-Ikejima Seiji Tadokoro Yoshiaki Tomiyama Toshiyuki Miyata

Integrin-linked kinase (ILK) is an important signaling regulator that assembles into the heteroternary complex with adaptor proteins PINCH and parvin (termed the IPP complex). We recently reported that ILK is important for integrin activation in a Chinese hamster ovary (CHO) cell system. We previously established parental CHO cells expressing a constitutively active chimeric integrin (αIIbα6Bβ3...

Journal: :Journal of Physics: Conference Series 2021

Journal: :Computer systems science and engineering 2023

This paper proposes a low complexity control scheme for voltage of dynamic restorer (DVR) in three-phase system. The employs the fractional order, proportional-integral-derivative (FOPID) controller to improve on DVR performance order enhance power quality terms response time, steady-state error and total harmonic distortion (THD). result obtained was compared with proportional-integral (FOPI),...

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