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With the growth of wind energy for power generation, several transmission system operators (TSOs) have increasing difficulties to forecast congestions due to the unpredictable nature of the energy source. This paper proposes to enhance congestion management using a real time supervisor. This supervisor performs automatic and dynamic re-dispatchings using both variable speed wind generators and conventional...
As renewable electricity generation is increasing, several concerns are addressed by the Transmission System Operators (TSO) towards the management and the security of the electrical grid. This paper reviews solutions to ease the integration of renewable energy in the electrical systems through enhanced supervision of renewable generation as well as utilisation of short term or medium term storage...
With the increased use of wind energy several Transmission System Operators (TSO) have increasing difficulties for congestion forecasting due to the unpredictable nature of the energy source. To maintain the state of the system within acceptable and secure operating conditions, the TSOs require the curtailment of the production of generators to avoid local congestion on the power grid. These actions...
This paper proposes a global supervision for Hybrid Renewable Energy Systems (HRES), integrating fixed speed wind generators and variable speed small hydropower plant and a storage unit. This supervisor must improve the grid insertion of renewable distributed generations by associating it with a short-term storage unit. The supervision system is structured in four levels. Level 1 and Level 2 are considered...
With the increased use of wind energy the power generation several Transmission System Operators (TSO) have increasing difficulties for congestion forecasting due to the unpredictable nature of the energy source. This paper proposes to enhance the congestion management using a real time supervisor. This supervisor is developed to perform automatic and dynamic re-dispatching using both wind and conventional...
With the increased use of wind energy for the power generation several TSO have increasing difficulties for congestion forecasting due to the unpredictable nature of the energy source. An actual method used to deal with days-ahead congestion planning is based on an order of disconnection of the generation of the type ldquolast generation installed, first generation limitedrdquo. This paper proposes...
Variable speed hydro power plants allow to compensate and to smooth the fluctuating wind power when feeding isolated loads. This is shown experimentally in this paper with the help of a 3 kW laboratory test bench able to emulate a hybrid wind/hydro power system. The test bench is equipped of a doubly fed induction generator based small hydro power plant emulator associated with a fixed-speed wind...
Association of wind power producing units, microhydro power plants and energy storage systems can ensure the stability of an islanded week power grid or can increase the penetration of these renewable energy sources into the large power networks. Experimental results presented in the paper demonstrate the effectiveness of this association. The microhydro power plant consists of a doubly-fed induction...
This paper reports on experimental results for a hybrid wind/micro hydro power system connected to the grid. It comprises, on one side, a doubly-fed induction generator linked mechanically and electrically (through back-to-back power electronic converters in the rotor circuit) to a permanent- magnet synchronous machine, which may recover or supply the slip power, and, on the other side, a fixed- speed...
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