학술논문
Enhanced Control of Photovoltaic Voltage Regarding Mixed Conduction Modes of Power Interfaces
Document Type
Conference
Author
Source
2023 IEEE International Future Energy Electronics Conference (IFEEC) Future Energy Electronics Conference (IFEEC), 2023 IEEE International. :415-420 Nov, 2023
Subject
Language
Abstract
The photovoltaic power output is characterized by a nonlinear and time-variant behaviour that changes significantly with the operating condition and environmental variables, e.g., solar irradiance and temperature. The switching operation of power interfaces is also nonlinear, time-variant, and load-dependence, inevitably experiencing both the continuous and discontinuous conduction modes (CCM/DCM) to accommodate the power variation. These lead to a difficult control problem and compromise the performance of maximum power point tracking (MPPT). This paper provides a comprehensive analysis of the system dynamics and proposes a universal but simple control law to support consistently stable, fast, and robust control operations.