Dynamic Analysis of Power Electronic Converters, 5 cr

Core content

• Defining averaged, linearized and state-space models of DC-DC converters operated in CCM. Solving steady-state operating point.
• Solving small-signal transfer functions, defining two-port models for DC-DC converters and constructing and solving control block diagrams.
• Using transfer functions to design stable feedback control utilizing the loop-shaping method. Validating control performance using simulator.

Complementary knowledge

• Symbolic analysis using MATLAB.
• Understanding relations between time-domain and frequency-domain behavior using equivalent first and second-order system dynamics. The concept of dominant poles.
• Nyquist contour and its relation to frequency-response of a loop gain. Controller realization.

Specialist knowledge

• Designing systems for specified time-domain performance. Control design constraints caused by RHP-zero. The effect of nonideal source and load to dynamic performance.
• Analog and digital implementation of controllers. Origin of control delays in a DC-DC converter.