Title :
Design study and scaled experiments for high-power DC-DC conversion for HVDC-systems
Author :
Morren, J. ; de Haan, S.W.H. ; Ferreira, J.A.
Author_Institution :
Delft Univ. of Technol., Netherlands
fDate :
6/23/1905 12:00:00 AM
Abstract :
The design of a high-efficiency DC-DC power converter, which can be used in high-voltage DC power transmission and distribution applications, is given in this paper. The DC-DC power converter, named an electronic DC-transformer, consists of a zero-voltage switching, phase-shift controlled, full-bridge IGBT-inverter, a high-frequency transformer and a voltage rectifier. The converter is analyzed and a design of a 1 MW electronic DC-transformer is presented. Also simulation and test results of a 3.6 kW, scaled model of the DC-transformer are presented. Further a description of methods to control voltage and current, by introducing a varying time delay between the two legs of the inverter, is presented in this paper
Keywords :
AC-DC power convertors; DC-AC power convertors; DC-DC power convertors; bipolar transistor switches; bridge circuits; insulated gate bipolar transistors; invertors; power bipolar transistors; power semiconductor switches; power transformers; rectifying circuits; switching circuits; 1 MW; 3.6 kW; control current; control voltage; electronic DC-transformer; high-efficiency DC-DC power converter; high-frequency transformer; high-voltage DC power distribution; high-voltage DC power transmission; phase-shift controlled full-bridge IGBT-inverter; varying time delay; voltage rectifier; zero-voltage switching; DC-DC power converters; Delay effects; Insulated gate bipolar transistors; Inverters; Leg; Power transmission; Rectifiers; Testing; Voltage control; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954336
