Nonlinear analysis of multi-converter power systems for microgrids

Multi-converter power systems play an important role in leveraging microgrids to achieve increased levels of autonomy in power system operation. Desired performance of converters associated with this type of power system architectures can be accomplished via a set of executive and distributed control strategies. However, the effectiveness of these control mechanisms is dependent on the communication network employed for information passing. Consequently, the operation of the converters as well as the power system as a whole relies on knowledge of the conditions under which the control methodologies will become obsolete. These conditions can be described by bounds for plant and network parameters such as loading level and network delay respectively. The focus of this work is the description of static and dynamic behavior of multi-converter power systems, the trajectories of which will be investigated through simulations during disturbances that will prompt the system to breach these bounds.