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Search results for: frequency
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Year: 2023, Volume: 23, Number: 4
... ) V1 for boost operation 60 V Input voltage (boost) V2 for buck operation 330 V Duty ratio, D1 and D2 31% and 69% Switching Frequency, fs 25 kHz Inductors (L1= L2) 102 μH Capacitors (C1, C2 =C3) 4 μF, 56 μF Power Rating 1.2 kW ...
Year: 2018, Volume: 18, Number: 2
... the PD currents are increased as expected. Within a short time period, the number of repeated oscillations decreased with the increased amplitude, which reduces the complexity (frequency of the distortions) of the signal. In our scenario fractal dimension, namely HFD measures the complexity and frequency of the oscillations over time periods. As ...
Year: 2017, Volume: 17, Number: 1
... loss 2 i 2 (35) Using a dissipative snubber this energy has to be dis- 0 sipated in a resistor RE. Then, with the switching frequency ƒ 2 2 ƒ f, the loss would be Wloss 2 € R loss 2 ƒI ‚ ƒ— Ty € 2I ‚ I1 € I1 ...
Year: 2011, Volume: 11, Number: 1
... propagation models. In LTE-Advanced [6-7]. At its core, 802.16m uses time-tested these networks the signal to noise ratio of received signal technologies such as Orthogonal Frequency Division changes dynamically, which in turn switches to more or less Multiplexing (OFDM), Orthogonal Frequency Division robust modulation and coding scheme altering both the rate ...
365. Aspects Regarding the Unidirectional Two-Port Circuits Implemented by Means of Electronic Gyrators
Year: 2016, Volume: 16, Number: 1
... =R, where R12=1 /G. satisfied the condition expressed as in equation (10): Setting the voltage U=1V, and the frequency f=950Hz, the 89 Advances in Electrical and Computer Engineering Volume 16, Number 1, 2016 results obtain by running the simulation in case R= ...
366. Induction Machine with Improved Operating Performances for Electric Trucks. A FEM-Based Analysis
Year: 2010, Volume: 10, Issue: 2
... regarding the way mechanism for middle to heavy-duty trucks employed in the traction power is transmitted. The first locomotive with USA where the preoccupation for such solution is static frequency converter comes from 1970 [1]. ascending. Concurrently, the producers have tested different solutions This paper is an initiatory approach, which focuses on the ...
Year: 2010, Volume: 10, Issue: 2
... [14]. The wavelet network is a local network in which the output function is well localized in K ‚ €t € K €t € both time and frequency domains. It absorbs advantages TD € t € V €t € such as the multi-resolution of wavelets and the learning of r €t € neural network and it ...
Year: 2008, Volume: 8, Issue: 1
... figure 1. modeling uncertainties, time varying parameter fluctuation, and external disturbances [3, 4]. The main disadvantage of this approach is the high switching frequency of the control action or chattering that VSC system exhibit. Chattering is undesirable since it can excite the unmodeled high frequency dynamics in the non linear system control ...
Year: 2013, Volume: 13, Number: 1
... reference compensating currents can be simply controllability and the robustness under parameters variation expressed as: is ensured by using a hysteresis-band controller. The maximal value of the switching frequency is limited by the i* Fck € i Lak € i Lk, k € A, B ,C (2) proper choice of the coupling ...
370. Active Disturbance Rejection Control Applied to a Three-Phase Grid-Connected Photovoltaic System
Year: 2022, Volume: 22, Number: 1
... weaknesses with respect to internal system disturbances. wind, these production plants can participate in the To avoid problems related to non-linearities and internal secondary regulation of the network frequency, or even in disturbances in systems, non-linear control methods are the primary regulation, thanks to the reliability of current widely used such as sliding mode control ...
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