energy-based approaches

Nowadays, one of the main tasks is the development of alternative energy. Despite the considerable number of advantages, such sources of energy as the sun and wind are not permanent, and since these sources naturally work in "antiphase" it is advisable to use them together. Also, due to their instability, they are typically used with various types of storage systems, in particular hybrid energy storage systems, such as a combination of batteries and supercapacitors, which have better performance.

Among the promising non-classical control systems electromechanical systems, it can be distinguished the system of energy-based control, where the object is taken as port-controlled Hamiltonian system. The energy shaping control essence consists in forming the shape of energy based on formed task. The article raises the problem of the synthesis of energy-based control systems with nonlinearities. As example, it was selected DC motor with two-zones speed control and model, that takes into account the nonlinearity of the magnetization curve and variable time constant of the field loop.

Main energy-based methods for synthesis of control systems of port-controlled Hamiltonian systems were considered, in particular: passivity-based control, energy-balance approach, interconnection and damping assignment and their combination with elements from linear and nonlinear control system theory. There are shown examples of using such methods for nonlinear object — permanent magnet synchronous machine. Result of their computer research and detail analyzes are presented as well.