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Search results for: harmonic
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Year: 2014, Volume: 14, Number: 2
... achieved. Compared with the 2- and 3-level VSC, the MMC output voltage harmonic As shown in Figure 1, the MMC contains six symmetrical contents and switching ... number is counted. SMC uses the correct current is sine wave with high frequency harmonics. control frame of last period for SM control. 2) SM internal ...
Year: 2009, Volume: 9, Issue: 3
... in the United States and IEC 61000 – 3 in Europe) which limit the harmonic content of the current drawn from the power line by rectifiers [4 – ... side to the AC side, the Usually, in order to reduce higher current harmonics on the transistors are controlled to conduct for T angles (square- AC ...
Year: 2017, Volume: 17, Number: 4
... technique by injecting the third waveforms and the current through the boost inductance. It harmonic into the PWM signal. In [7, 8], the three-phase ... that increase the power factor and eliminate certain Figure 1. Direct boost AC-AC converter harmonics. References [5 ,6] study a single phase AC converter with ...
Year: 2011, Volume: 11, Number: 4
... . INTRODUCTION performance, depending on the hardware architecture. After the study of the harmonics of chaotic systems [9] Energy harvesting from alternative energy resources is and ... observed for a fundamental period – T waveform, then for a period – 2T subharmonic waveform and finally to a chaotic waveform, starting from small values of S ...
Year: 2022, Volume: 22, Number: 3
...    Vi1  Vi2 B (33)   thereby reducing the harmonic content of the output,  1 ï€ 3DS  specified in Table III ... a stepped output with shading on the array is based on the array interconnection reducing harmonics, and to best handle during conduction of (series-parallel connections) m n ...
Year: 2014, Volume: 14, Number: 2
... reference currents and inverter topology. airgap can be estimated by its first and third harmonic In [18] [22-23] stator reference currents are optimized to components ... DC environment. Considering first and third outer-rotor in-wheel type of five-phase BLDC machine with harmonics, the transformation equation is written in (4) at a two-layer winding ...
Year: 2012, Volume: 12, Number: 1
... chosen as error of q-axis current and variation of be properly controlled. However, harmonic distortion in the this error. An anti wind-up integrator is used to improve ... of NFC in steady state. The gradient controlled current scheme. To reduce low-order harmonics, descent algorithm is used to train the NFC in direct adaptive either inverter ...
Year: 2014, Volume: 14, Number: 1
... with the fundamental, the rank 3 measurement is affected when relative the humidity exceeds harmonic has represented 13..17% and the rank 5 harmonic 70% and involved errors ... narrow bandwidth could remained under the exposure limits admissible for the be accepted if the harmonics content could be neglected). public. The maximum values of the magnetic ...
Year: 2018, Volume: 18, Number: 1
... "A real-time extraction control scheme. Even for time varying solar insolation and of harmonic and reactive current in a nonlinear load for grid- different loading conditions, ... the PV array, and grid side converter The reactive power, voltage control and harmonics which consists of Grid Side-Voltage Source Converter (GS- current compensation methods are ...
Year: 2014, Volume: 14, Number: 3
... . PF analysis for the current power source im For calculating the THD, total harmonic distortion of the input current, the following equation was used: IV. ... leads to the Index Terms — choppers, circuit simulation, power minimization of the harmonics for the current supplied by conversion. the power source. The circuit can ...
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