2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289)
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Các bài báo tiêu biểu
A 1/spl phi/3W grid-connection PV power inverter with partial active power filter
Tập 3 - Trang 1512-1517 vol.3
This paper presents a single-phase three-wire (1/spl phi/3W) grid-connection
photovoltaic (PV) power inverter with a feature of a partial active power filter
(PAPF), which can not only deal with PV power but can filter current harmonics
and improve power factor. Once the processed power exceeds the switch ratings,
the inverter can reduce its output reactive power and harmonic power, while
still ca...
#Inverters #Active filters #Power harmonic filters #Reactive power #Power system harmonics #Switches #Power generation #Photovoltaic systems #Solar power generation #Phase detection
An instructional laboratory for the revival of electric machines and drives courses
Tập 2 - Trang 455-460 vol.2
This paper describes the developments at the University of Minnesota of new
approach in teaching of electric drives, focusing on the associate
state-of-the-art laboratory. The mission of these developments is to nationally
revitalize courses in industrially and strategically vital fields of electric
drives (and power electronics). This is accomplished by making these courses
appealing to students ...
#Laboratories #Electric machines #Power electronics #Drives #Continuing education #Digital control #Hardware #Electronics industry #Electric motors #Voltage
Problems of paralleling windings for planar transformers and solutions
Tập 2 - Trang 597-601 vol.2
In today's power converters, paralleling windings in planar transformers is
common, especially for low voltage and high current applications. Although this
practice is usually believed to be an effective way to increase the current
handling capacity of the windings, the effect might not be so significant due to
the unequal current distribution within parallel layers if the layers are not
properly ...
#Transformers #Copper #Current distribution #Frequency #Inductance #Power electronics #Low voltage #Solids #Wire #Assembly
Power integrated circuit drives based on HV NMOS
Tập 4 - Trang 1737-1740 vol.4
This paper presents high voltage (HV) NMOS based level shifters, bootstraps and
charge pumps in direct and cascaded topologies, which are highly useful to
implement either power integrated circuits (PICs) high-side transistor floating
drives or compact inductorless DC-DC power supplies. Monolithic solutions
resorting to a unique HV NMOS switching cell are very important when standard
CMOS technolo...
#Power integrated circuits #MOS devices #Voltage #CMOS technology #Charge pumps #Integrated circuit technology #Costs #Circuit topology #Power supplies #Geometry
Industrial implementation of a controlled sensorless synchronous drive with hard start conditions
Tập 3 - Trang 1167-1171 vol.3
The subject of this paper is a synchronous drive of grinding ball mills 4 MW,
150 rpm, 6 kV, 50 Hz on the base of PWM CSI. The system is installed at the
concentrating plant of Norilsknickel in Russia. Specific to this drive is large
stalling torque-up to 125% of rated torque. This is a sensorless drive. Another
specific feature is the necessity of synchronization with power system and
switching t...
#Industrial control #Sensorless control #Torque #Power system simulation #Pulse width modulation #Synchronous motors #Milling machines #Frequency #Voltage #Automatic control
Adaptive nonlinear control law applied to a three-phase NPC boost rectifier operating under severe conditions
Tập 2 - Trang 785-790 vol.2
In this paper, an adaptive nonlinear control law applied to a three-phase
three-level neutral-point-clamped (NPC) boost rectifier operating under severe
conditions is presented. The control technique consists of applying an adaptive
nonlinear control to the exact nonlinear model of the rectifier obtained in
(d,q,0) reference frame. By applying a nonlinear feedback linearization
technique to the no...
#Programmable control #Adaptive control #Rectifiers #Mathematical model #Power system modeling #Robust control #Uncertainty #Power system simulation #Feedback #Linearization techniques
Analysis and comparison of algebraic and trigonometric methods of synchronous PWM for inverter drives
Tập 3 - Trang 1439-1444 vol.3
This paper presents a novel method of direct synchronous pulsewidth modulation
(PWM) for three-phase voltage source inverters, feeding induction motors with
different control regimes. It is based on the universal algorithm with either
simplified algebraic or accurate trigonometric control functions, with vector
approach for determination of the pulse patterns. Different control modes of the
drive ...
#Pulse width modulation inverters #Pulse width modulation #Voltage control #Control systems #Nonlinear control systems #Pulse width modulation converters #Pulse inverters #Space vector pulse width modulation #Frequency #Switching converters
Utility-connected power converter for maximizing power transfer from a photovoltaic source while drawing ripple-free current
Tập 3 - Trang 1518-1522 vol.3
This paper presents a power converter for coupling photovoltaic arrays to the
utility grid. The converter draws a programmable, ripple-free DC current from
the photovoltaic array and injects power into the grid at unity power factor.
The programmable input current feature makes this converter ideal for use with
maximum power point tracking technology. The proposed converter has an
additional uniqu...
#Photovoltaic systems #Solar power generation #Reactive power #Voltage #Capacitors #Information analysis #Information filtering #Information filters #Control systems #Hardware
Multiple input DC-DC power converter for fuel-cell powered hybrid vehicles
Tập 4 - Trang 1685-1690 vol.4
Customer demands for greater acceleration, performance, and vehicle range in
pure EVs plus mandated requirements to further reduce emissions in HEVs increase
the appeal for combined on-board energy storage systems and generators. This
paper deals with a multiple input DC-DC power converter devoted to combine the
power flow of multi-source on-board energy systems. The proposed energy storage
arrang...
#DC-DC power converters #Energy storage #Power generation #Fuel cells #Hybrid electric vehicles #Acceleration #Supercapacitors #Capacitors #Battery powered vehicles #Fuel cell vehicles
Analysis of a current fed voltage multiplier bridge for high voltage applications
Tập 4 - Trang 1919-1924 vol.4
The power density of high voltage DC power supplies can be optimised when
diode-capacitor voltage multipliers are applied. A further improvement can be
achieved by feeding the multipliers by high frequency series resonant
converters. Ideally, the series resonance is formed by the leakage inductance of
the transformer and the capacitors of the multiplier. In this case the
multiplier is practically ...
#Voltage #Bridge circuits #Resonance #Capacitors #Stress #Equivalent circuits #Virtual manufacturing #Power supplies #Diodes #Frequency conversion