Results 181 to 190 of about 15,594 (232)
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2022 IEEE International Workshop on Metrology for Automotive (MetroAutomotive), 2022
The real-time control of the operation of an electric vehicle made by the on-board control units requires measurements on different types of power signals from the DC power supply of the batteries to the PWM signals with which the inverter powers the engine.
Cipolletta G. +4 more
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The real-time control of the operation of an electric vehicle made by the on-board control units requires measurements on different types of power signals from the DC power supply of the batteries to the PWM signals with which the inverter powers the engine.
Cipolletta G. +4 more
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Analysis of PWM Frequency Control to Improve the Lifetime of PWM Inverter
IEEE Transactions on Industry Applications, 2009Studies have shown that the power cycling Mean Time to Failure (MTTF) of the IGBT bond wire in an adjustable speed drive (ASD) may be very short under some very common conditions. This paper proposes a switching frequency reduction method based on junction temperature variation (ΔTj) of the inverter IGBT. It has the following advantages.
null Lixiang Wei +2 more
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Sectionalized PWM (S-PWM): A new multilevel modulation strategy
2008 IEEE International Symposium on Circuits and Systems, 2008The paper presents a novel multilevel PWM strategy that employs a split section reference waveform with phase-shifted carriers to produce harmonically superior PWM signals. The multilevel PWM switching patterns provide a higher dynamic range than what has been reported in the literature.
Hirak Patangia, Dennis Gregory
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Microcomputer Control of PWM Inverters
IEEE Transactions on Industrial Electronics, 1982A method is proposed for implementing on a microcomputer the control of inverters modulated with a digital technique. It consists of storing in the microcomputer memory the switching patterns relative to a limited number of levels of the first harmonics of the inverter output voltage and of computing on line the actual pattern by interpolating the ...
BUJA, GIUSEPPE, FIORINI P.
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FPGA implementation of PWM pattern generators [for PWM invertors]
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555), 2002Pulse width modulation is used in power converters to modulate a reference signal into gating pulses for IGBT switches. This conversion can be carried out using analog circuits or digital circuits, such as DSPs and microcontrollers. A more efficient and faster solution is the use of field programmable gate arrays (FPGA).
null Dan Deng, null Su Chen, G. Joos
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Optimized modulation for PWM rectifiers
2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309), 2003An optimized set-up for controlling PWM rectifiers is proposed in this paper. In particular, the control part is based on a predictive estimation algorithm which guarantees the imposed value of the DC link output voltage and, at the same time, a unity power factor behavior at the mains.
ATTAIANESE C, G. TOMASSO
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PWM-CAD1: an interactive and efficient PWM inverter training kit
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002In this paper, the presentation of inverter performance in visual, Matlab with Simulink program and EPROM digital control circuit are used as the computer aided training, simulation and designation which called as PWM-CAD1 kit. The presentation shows the circuit, waveform, mathematics equations of waveform, and inverter performance of switching ...
S. Kaitwanidvilai, W. Khan-ngern
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IEEE Micro, 1996
Researchers usually implement fuzzy inference systems in software on digital computers or microprocessors. This approach copes with most problems, however real-time systems often require very short time responses. In this case, a hardware implementation becomes the only solution.
Jonathan Noel Tombs +2 more
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Researchers usually implement fuzzy inference systems in software on digital computers or microprocessors. This approach copes with most problems, however real-time systems often require very short time responses. In this case, a hardware implementation becomes the only solution.
Jonathan Noel Tombs +2 more
openaire +1 more source
PWM fronthauling in reflective PON
2016 European Conference on Networks and Communications (EuCNC), 2016Pulse width modulation (PWM) has recently been proposed for analog optical fronthauling in centralized radio access networks (CRANs) to avoid the bandwidth expansion of digital fronthauling (e.g., common public radio interface protocol, CPRI). At the transmitter, the radio-signal is mapped onto the duration of an on/off keyed optical signal, while at ...
COMBI, LORENZO +4 more
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