Title :
A three-phase PWM VSI line termination net for load overvoltage cancellation
Author :
Fratta, A. ; Pellegrino, G.M. ; Scapino, F. ; Villata, F.
Author_Institution :
Dept. of Electr. Eng., Politecnico di Torino, Italy
Abstract :
The feasibility of load overvoltage cancellation is investigated, induced by four-wire cables connection to hard-switching IGBT PWM VSI. The transmission line parameters of these cables are evaluated by taking into account any mutual coupling between wires, accurately defining signal termination net values. Conversely, power line termination net requirements are pointed-out to define practical LTN design concepts and benefits, accounting also for the composition of distributed and lumped second order responses due to parasitic load capacitance. The experimental results demonstrate the feasibility of the main proposal as well as a strong reduction of current ringing, confirming that the proposed design concept can be reliably effective in a wide range of load power and cable length
Keywords :
DC-AC power convertors; PWM invertors; insulated gate bipolar transistors; load (electric); overvoltage protection; power bipolar transistors; power transmission lines; power transmission protection; LTN design benefits; LTN design concepts; current ringing reduction; distributed second order response; hard-switching IGBT PWM VSI; load overvoltage cancellation; lumped second order response; mutual coupling; parasitic load capacitance; power line termination net requirements; signal termination net values; three-phase PWM VSI line termination net; transmission line parameters; Analytical models; Cables; Inductors; Insulated gate bipolar transistors; Parasitic capacitance; Power transmission lines; Pulse width modulation; Pulse width modulation inverters; Voltage control; Wires;
Conference_Titel :
Industrial Electronics, 1999. ISIE '99. Proceedings of the IEEE International Symposium on
Conference_Location :
Bled
Print_ISBN :
0-7803-5662-4
DOI :
10.1109/ISIE.1999.798709
