1 / 10

Power Semiconductor Systems II

Power Semiconductor Systems II. Author: Ales Havel E-mail: ales.havel@vsb.cz Phone number: 4287 Headquarters: E227 Web page: http://homen.vsb.cz/~ hav278 /. Content of the presentation. Main types of frequency converters AC-DC converters DC-DC converters DC-AC converters

cosima
Download Presentation

Power Semiconductor Systems II

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Power Semiconductor Systems II Author: Ales Havel E-mail:ales.havel@vsb.cz Phone number: 4287 Headquarters: E227 Web page: http://homen.vsb.cz/~hav278/

  2. Content of the presentation • Main types of frequency converters • AC-DC converters • DC-DC converters • DC-AC converters • AC-AC converters • Direct frequency converters • Cycloconverters • Indirect frequency converters • Converters with voltage type of the DC link • Converters with current type of the DC link

  3. Power converters • A power semiconductor converter is an electrical device for converting electrical energy.

  4. Converters with voltage type oftheDC link • General characteristics: • Creation of output AC voltage with utilization of the voltagetype of the DC link • Regulation of output values (voltage, current, frequency) by the output power inverter • Filtration of the voltagein the DC link by the capacitor battery • Relatively easy control algorithms due to small number of switches • High dynamics, possibility of high switching frequencies • MOSFETs for low power, IGBT for medium power and IGCT or GTO for high power applications 3 phase voltage inverter 6-pulse diode rectifieror 4-quadrant pulse voltage rectifier

  5. Converters with voltage type oftheDC link Indirect frequency converter with 6-pulse diode rectifier and voltage inverter Indirect frequency converter with 4-quadrant pulse voltage rectifier and voltage inverter

  6. Converters with voltage type of theDC link Switching frequency 0.5kHz Switching frequency 10kHz

  7. Converters with current type oftheDC link • General characteristics: • Creation of output AC voltage with utilization of the currenttype of the DC link • Regulation of output values (voltage, current, frequency) by the output power inverter • Filtration of the currentin the DC link by the power coil • Relatively easy control algorithms due to small number of switches • High dynamics, possibility of medium and highswitching frequencies • High power applications, utilization of IGBT, GTO and IGCT power parts • The absence of higher harmonics, controlled power factor 3-phasecurrentinverterwithcapacitorbattery 6-pulse thyristor rectifieror 4-quadrant pulse current rectifier

  8. Converters with current type oftheDC link Indirect frequency converter with 6-pulse thyristorrectifier and currentinverter Indirect frequency converter with 4-quadrant pulse current rectifier and currentinverter

  9. Converters with current type oftheDC link Switching frequency 0.5kHz Switching frequency 5kHz

  10. Thank You for your attention

More Related