DESIGN AND ANALYSIS OF A MICROPROCESSOR-CONTROLLED PEAK-POWER-TRACKING SYSTEM

Stability and dynamics of a series configuration peak-power tracking ( PPT) system are analyzed. The operating modes of the system, as well a s mode transitions, are investigated based on qualitative graphical re presentations of de load lines at various interfaces of the system Ana lysis of multiloop control in the PPT mode is discussed. This includes the design of the inner voltage loop and analysis of the closed-loop system stability around the peak-power point. For an optimum dynamic p erformance and stability, design parameters of the inner voltage loop and the outer PPT loop are identified. Experimental verifications, sup ported by simulation results, are performed.