Flexible Power Transfer Network

Flexible Power Transfer Network

Purgat, P.

Bauer, P. (mentor)

Electrical Engineering, Mathematics and Computer Science

DC systems, Energy conversion & Storage

2016-05-24

The flexible power transfer network is a conceptual transfer network for residential areas. The main advantage of the proposed concept is the increased safety and flexibility compared to currently used AC network. The core idea is to incorporate wireless power transfer into the network which leads to inherently safer and more flexible network compared to 50 Hz AC network. The networkmust be able to supply enough power to several loads without any means of communication between the source and the load side. Furthermore, with introduction of distributed energy sources (eg. PV), the network must also be able to operate several sources at one time. Themain challenge tackled in this thesis was a design of a controller that is able to control several sources simultaneously, independently and efficiently. The controller is the same for each source, which means that there is nomaster and no slave source and each source has the same priority. The solution provided in this thesis is based on the sliding mode control theory and the physics of series loaded resonant converter. The proposed controller is suitable to be used in applications like PV clusters, or other applications with distributed sources. The derivation of the controller proposed in this thesis starts with the energy-balance equation. However, it is realized that in order to control multiple sources with possibly different voltage levels it is important to utilize the reactive power. Therefore, the controller proposed emphasizes the power-balance equation. The dynamic stability of the power-balance controller is studied in the framework of sliding mode control theory.

series loaded resonant converter
energy-balance
sliding mode control
wireless power transfer
stability
equivalent control
averaged model

http://resolver.tudelft.nl/uuid:3f903786-381a-47a4-a7a5-93cfd370361a

2016-12-24

Student theses

master thesis

(c) 2016 Purgat, P.