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399 (0,145s) •

Project

Voltage waves reflection phenomena at PWM inverter fed induction motor drives (IAA2057601)

JA - Elektronika a optoelektronika, elektrotechnika

  • 1996 - 1997
    • •
  • 165 tis. Kč
    • •
  • 165 tis. Kč
    • •
  • AV ČR
Project

Effect of DC-Link Voltage Variations in Voltage Source Inverter on Electric Drive Operation (GA102/09/1273)

The project focuses on complex solution of the problem of DC-link voltage pulsations in voltage source inverters of electric drives. These pulsations negatively affect operation of the drives, increase power losses and cont...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2009 - 2011
    • •
  • 2 550 tis. Kč
    • •
  • 2 550 tis. Kč
    • •
  • GA ČR
Project

*Application of the matrix converters in traction. (FT-TA2/035)

*Matrix converters could be utilized in electric traction as the input converters which form input voltages of various supply systems into required DC intercircuit voltage of the voltage inverters or as the convert...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2005 - 2007
    • •
  • 20 479 tis. Kč
    • •
  • 10 455 tis. Kč
    • •
  • MPO
Project

The stress of induction motors supplied from static frequency converters (GA102/96/0815)

frequency converters which output voltage or current aren't completely sinusoidal capacitor and PWM controlled inverter are used for their limitation. The DC choke L frequencynew problems are developed: higher voltage stre...

JA - Elektronika a optoelektronika, elektrotechnika

  • 1996 - 1998
    • •
  • 355 tis. Kč
    • •
  • 305 tis. Kč
    • •
  • GA ČR
Project

Usage of fuel cells in ecological power sources and in traction drives (GA102/06/1036)

of this research consists in a conversion of DC voltage produced in the fuel cell into an AC voltage (standard low voltage distribution net) or into a DC voltage (DC bus of a tranction inverter). It is su...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2006 - 2008
    • •
  • 1 896 tis. Kč
    • •
  • 1 696 tis. Kč
    • •
  • GA ČR
Project

Highly Efficient Controllers for High-speed Electrical Machines (TS02020056)

The project aims to create a high-efficiency motor controller for high-speed industrial rotating machines using GaN transistors. Furthermore, the goal is to reduce the number of circuit elements required, and very fast switching allows for output

Energy and fuels

  • 2025 - 2027
    • •
  • 18 525 tis. Kč
    • •
  • 11 111 tis. Kč
    • •
  • TA ČR
Project

HiBioT - High-temperature electrical insulation system with bio liquid (TS01020092)

The goal of the project is to develop a high-voltage electrical insulation system for distribution transformers based on biodegradable ester liquid and synthetic paper. In transformers, the liquid component is sometimes replaced resistance t...

Energy and fuels

  • 2024 - 2027
    • •
  • 23 929 tis. Kč
    • •
  • 14 454 tis. Kč
    • •
  • TA ČR
Project

Fully parameterized inverter with secure setting and communication protocol (TK04020103)

The project aims to develop functional sample / prototype inverter with full and management of battery storage. The development of the inverter will be based on products/inverters which are in the production portfolio of th...

Energy and fuels

  • 2022 - 2024
    • •
  • 11 145 tis. Kč
    • •
  • 6 667 tis. Kč
    • •
  • TA ČR
Project

Neural and fuzzy - logic control of electrical drives (GA102/96/0534)

The goal of this project is a research and a development of neural and fuzzy - logic controllers of electrical drives with induction, synchronous and reluctance motors supplied from voltage source inverters with PWM. Classic control...

JA - Elektronika a optoelektronika, elektrotechnika

  • 1996 - 1998
    • •
  • 1 606 tis. Kč
    • •
  • 1 278 tis. Kč
    • •
  • GA ČR
Project

Analysis of power theories with respect to functions of pulse-controlled rectifiers (IAA2057901)

The project aims at the comparative analysis of different power theories (IRP, SD, etc.) developed within the period of several last years, especially those, which are connected with control method of shunt and series active filters. In addition to t...

JA - Elektronika a optoelektronika, elektrotechnika

  • 1999 - 2001
    • •
  • 1 089 tis. Kč
    • •
  • 364 tis. Kč
    • •
  • AV ČR
  • 1 - 10 out of 399