Proceedings ArticleDOI
Resonant Type Five-level PWM inverter Used In Small Scaled Photovoltaic System
S. Inarida,M.H. Ohsato,G. Kimura,M. Shioya +3 more
- Vol. 2, pp 987-991
TLDR
A new type of PWM inverter, a resonant type five-level PWM Inverter, is presented, which has smaller harmonic contents and lower switching losses than those of a conventional P WM inverter.Abstract:
ABS TRACT This p a p e r descr ibes a small scaled photovoltaic generation system linked up with storage batteries. A new type of PWM inverter, a resonant type five-level PWM inverter, is presented. The waveform of the output voltage caused by this inverter has smaller harmonic contents and lower switching losses than those of a conventional PWM inverter. A resonant DC link circuit is introduced in order to realize the high efficiency of the system. The operation and experimental r e s u l t s o f t h i s i n v e r t e r are presented.read more
Citations
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Proceedings ArticleDOI
Characteristics of resonant type five-level PWM inverter used in small-scaled photovoltaic systems
Abstract: A resonant-type five-level pulse-width-modulated (PWM) inverter for small-scale photovoltaic systems is presented. The output waveform of this inverter has multiple levels of voltage, achieved by connecting two units of power source in series or parallel. The operation of and experimental results for this inverter are presented. An efficient circuit which uses two inductors with coupling is proposed to attain high efficiency with this inverter. The inverter also exhibits reduced low-order harmonics. >
References
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Journal ArticleDOI
The resonant DC link converter-a new concept in static power conversion
TL;DR: In this paper, a resonant DC-link inverter was proposed and realized with the addition of only one small inductor and capacitor to a conventional voltage source inverter circuit.
Book
Power Electronic Control of Ac Motors
J. M. D. Murphy,F. G. Turnbull +1 more
TL;DR: AC motors are driven by an alternating current and are a highly efficient way of turning electrical energy into mechanical motion AC motors differ from DC Direct Current Motors in that they do not include brushes meaning less need for maintenance and a typically longer life expectancy Unlike DC motors the output speed for AC motors is typically controlled by a frequency drive control as discussed by the authors.
Proceedings ArticleDOI
An improved resonant DC link invertor for induction motor drives
Jih-Sheng Lai,Bimal K. Bose +1 more
TL;DR: In this article, a bidirectional initial current control concept is proposed to solve the voltage overshoot problem in the resonant link and establish reliable zerovoltage crossing for smooth inverter operation.
Journal ArticleDOI
Five-stepped PWM inverter used in photovoltaic systems
TL;DR: In this paper, a PWM (pulsewidth-modulated) inverter that has five-stepped output-voltage levels is introduced, and the PWM pulses included in the waveform of the output voltage are formed using a criterion based on the calculation that each area of voltage pulses is equal to the integrated value of each time shared area of a reference sinusoidal waveform.
Journal ArticleDOI
Pulse width modulation method of a single-phase multilevel inverter
TL;DR: In this article, a novel pulsewidth modulation method for a multilevel single-phase inverter is proposed, which has the feature that the output voltage changes at each level, compared with the conventional method in which output voltage jumps from zero to the maximum level.