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Power Electronics System Communications

by Ivana Milosavljevic

Institution:	Virginia Tech
Department:	Electrical and Computer Engineering
Degree:	MS
Year:	1999
Keywords:	delay; design; PLD; port; ring; high-speed; control networks; RS-232; power electronics; VHDL; real-time; FPGA; converters; digital; serial; protocol; three-phase; industrial communications; synchronization
Posted:
Record ID:	1705690
Full text PDF:	http://scholar.lib.vt.edu/theses/available/etd-021299-141947/

Abstract

This work investigates communication issues in high-frequency power converters. A novel control communication network (Power Electronics System Network or PES Net) is proposed for modular, medium and high-power, converters. The network protocol, hardware and software are designed and implemented. The PES Net runs at 125 Mb/s over plastic optical fiber allowing converter switching frequencies in excess of 100 kHz. Communication control is implemented in a field programmable gate array device. A novel synchronization method applicable to ring networks is proposed. The effect of the communication delay on the power converter operation is studied.