Vol. 27 No. 1 (2010): Scientific Journal of Riga Technical University. Power and Electrical Engineering

Published: 2010-01-01

Synchronous Study of Ferroresonance and Inrush Current Phenomena and their Related Reasons in Ground Power Networks

Amin Akrami, Mohammad Ghaderi, Saeed Ghadi (Author)

82-87
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Correlation Analysis between Grounding Resistance and Diurnal Variations of Upper Soil Resistivity during March 2010 in Balozhi, Latvia

Marina Kizhlo, Arvids Kanbergs, Mihails Kizhlo (Author)

88-91
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Measuring Specificities of Dissipation Factor of Electrical Equipment in Substations

Gerards Gavrilovs, Sandra Vītoliņa (Author)

92-95
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Electrical Measuring Techniques — Expectations for Increasing Accuracy

Imants Matiss, Andris Purvinsh (Author)

96-101
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Application of Integrated Hardware and Software System "PRIZNAK-10M" for Measuring Power-Frequency Electric and Magnetic Fields in Electric Networks

Victor Kurbatsky (Author)

102-107
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Practical Design Guidelines of qZSI Based Step-Up DC/DC Converter

Janis Zakis, Dmitri Vinnikov, Indrek Roasto, Tanel Jalakas (Author)

108-115
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Current-fed Step-up DC/DC Converter for Fuel Cell Applications with Active Overvoltage Clamping

Aleksandrs Andreiciks, Ingars Steiks, Oskars Krievs (Author)

116-121
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Switch-Off Behaviour of 6.5 kV IGBT Modules in Two-Level Voltage Source Inverter

Andrei Blinov, Tanel Jalakas, Dmitri Vinnikov, Kuno Janson (Author)

122-127
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Active Rectifier for Uninterruptable Power Supply

Andrew Stepanov, Valdis Bogdans, Pavel Suskis, Ilya Galkin (Author)

128-133
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A PLL Scheme for Synchronization with Grid Voltage Phasor in Active Power Filter Systems

Oskars Krievs, Ingars Steiks, Leonids Ribickis (Author)

134-137
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Matrix Converter Bi-directional Switch Power Loss and Cooling Condition Estimation for Integrated Drives

Alvis Sokolovs, Ilya Galkin (Author)

138-141
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The Single-phase AC Regulator on Base of Bidirectional IGBT Switches

Vladimirs Cimanis, Vladimirs Hramcovs, Ivars Rankis (Author)

142-145
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Troubleshooting of Matrix Frequency Converter Conducted and Radiated Emissions

Gundars Asmanis, Leonids Ribickis, Vladimirs Novikovs (Author)

146-151
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Application of Astatic State Observers in Electromechanotronic Modules

Nikolay Gnezdov, Aleksey Kolganov, Sergey Lebedev (Author)

152-155
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Algorithm for Public Electric Transport Schedule Control for Intelligent Embedded Devices

Ivars Alps, Andrey Potapov, Mikhail Gorobetz, Anatoly Levchenkov (Author)

156-161
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