Modelling, Control and Operation of Future Power Systems with 100% Renewable Energy Sources

New challenges to the power systems have been induced by the rapid change of electricity generation style, mainly the increased penetration of renewable energy sources (RES), such as wind farms, and distributed generation (DG) units, including small household based generation units. The power system is becoming a more complex and mixed pattern, is mainly supplied by renewable energy conversion/storage units, the conventional units will be gradually replaced, a power system with 100% renewable energy sources is on horizon.
Highly efficient power electronics devices are widely used in renewable power generation systems, such as wind power system and photovoltaic systems. Such large scale expansion of power electronics interfaced renewable units will change the characteristics of the power system fundamentally which may result in risk of instability in the future power systems if the presently used conventional analysis, operation and control methods would not be appropriately updated. Furthermore, the dynamic behaviors of the power electronics based generation units are more complex than the traditional generation units, such as fast response with high change rate, less short circuit power, lack of natural inertia, which may also be challenges for the future power systems, since most of the facilities, modelling, operation and control methods in power systems are designed according to the traditional generation units and operation and control structure. Moreover, the centralized control structure of power systems with central power plants will be replaced by a new distributed intelligence based control systems which may have to deal with a rapid expansion of information and data from large number of distributed generation units.
Therefore, it is necessary to gain a thorough understanding of the impacts and to appropriately handle the challenges in order to provide reliable and secured power supply for accommodating the increased renewable energy share. The development of new concepts, models and technologies becomes an urgent demand for creating a secure and economic power grid which is an important part of the environmental friendly sustainable energy system.
The proposal focuses on the necessaries of a future power system, such as the foreseeable European power system in 10-20 years, with a strategic vision, by systematically developing new concepts and models, and establishing new analysis, operation and control approaches to realize a secure and environmentally-friendly modern power system which includes renewable energy, large number of power electronic devices, and various energy storage units, and actively interacts with other sectors of the overall energy systems, such as heating and gas.