Bifurcation Analysis with Applications to Power Electronics
Document Type
Book Chapter
Faculty
Faculty of Computing, Health and Science
School
School of Engineering
RAS ID
8866
Abstract
The problem of sudden loss of stability (more precisely, sudden change of operating behaviour) is frequently encountered in power electronics. A classic example is the current-mode controlled dc/dc converter which suffers from unwanted subharmonic operations when some parameters are not properly chosen. For this problem, power electronics engineers have derived an effective solution approach, known as ramp compensation, which has become the industry standard for current-mode control of dc/dc converters. In this chapter, the problem is reexamined in the light of bifurcation analysis. It is shown that such an analysis allows convenient prediction of stability boundaries and facilitates the selection of parameter values to guarantee stable operation. It also permits new phenomena to be discovered. An example is given at the end of the chapter to illustrate how some bizarre operation in a power-factor-correction (PFC) converter can be systematically explained.
DOI
10.1007/978-3-540-44925-6_2
Comments
Chi, K. T., & Dranga, O. (2003). Bifurcation analysis with application to power electronics. In Bifurcation control (pp. 29-48). Springer, Berlin, Heidelberg.