Title :
Analysis and control design of paralleled DC/DC converters with current sharing
Author :
Thottuvelil, V. Joseph ; Verghese, George C.
Author_Institution :
Lucent Technol., AT&T Bell Labs., Mesquite, TX, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
This paper presents a general small-signal stability analysis of paralleled power converter systems. The framework specializes to include both the “democratic” and “master-slave” current-sharing schemes. Design examples illustrate how to obtain stable current sharing. The authors show how paralleled power converters can become unstable (even when active current sharing is absent) and discuss the influence of the number of converters paralleled
Keywords :
DC-DC power convertors; control system analysis; control system synthesis; electric current control; stability; voltage control; control design; control simulation; current sharing schemes; democratic current-sharing; master-slave current-sharing; paralleled DC/DC power converters; power converter stability; Availability; Control design; DC-DC power converters; Impedance; Master-slave; Power system reliability; Power system stability; Stability analysis; Stress; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
