Title :
A simple indirect voltage sensing method for line-connected inverters
Author :
Becker, Frank ; Scherer, Alexander ; Weigold, Joerg ; Braun, Michael
Author_Institution :
Elektrotechnisches Inst. Univ., Karlsruhe
Abstract :
Inverter-fed drives will be used more and more frequently for variable speed drive applications with high dynamics. For saving braking energy and reduction of cooling effort it is useful to deploy self-commutated line side converters even in low power applications. The method proposed in this paper allows to synchronise the converter to the grid without sensing the line voltage. Hence additional hardware for voltage sensing is not necessary. Furthermore the implementation of this method on a microcontroller system is presented.
Keywords :
invertors; machine control; microcontrollers; variable speed drives; braking energy; converter control; cooling effort; electrical drive; indirect voltage sensing method; inverter-fed drives; line voltage; line-connected inverters; low power applications; microcontroller system; pulsed power converter; self-commutated line side converters; self-sensing control; sensorless control; variable speed drive applications; voltage source converter; Current measurement; Electric variables control; Feeds; Hardware; Inductors; Pulse measurements; Pulse width modulation; Pulse width modulation inverters; Sensorless control; Voltage control; Converter control; Electrical drive; Measurement; Pulsed Power Converter; Self-sensing control; Sensorless control; Voltage Source Converters;
Conference_Titel :
Power Electronics and Applications, 2007 European Conference on
Conference_Location :
Aalborg
Print_ISBN :
978-92-75815-10-8
Electronic_ISBN :
978-92-75815-10-8
DOI :
10.1109/EPE.2007.4417462
