Interconnection and damping assignment and Euler-Lagrange passivity-based control of photovoltaic/battery hybrid power source for stand-alone applications
A DC hybrid power source composed of photovoltaic cells as the main power source, Li-ion battery storage as the secondary power source, and power electronic interface, is modeled based on port-controlled Hamiltonian systems and Euler-Lagrange framework. Subsequently, passivity-based controllers are synthesized. Local asymptotic stability is ensured as well. In addition, a power management system is designed to manage power flow between components. Modeling and simulation of the proposed hybrid power source is accomplished using MATLAB/Simulink. Our interest is focused on the comparison of the two passivity-based control methods and their use in hybrid power systems.
passivity-based control photovoltaic dc hybrid power source li-ion battery euler-lagrange (el) equations interconnection and damping assignment (ida)