Showing 1 - 10 of 80
In this paper, an optimization method for the reactive power dispatch in wind farms (WF) is presented. Particle swarm optimization (PSO), combined with a feasible solution search (FSSPSO) is applied in order to optimize the reactive power dispatch, taking into consideration the reactive power...
Persistent link: https://www.econbiz.de/10011040493
In this paper a novel frequency-independent control method suitable for distributed generation (DG) is presented. This strategy is derived based on the abc/αβ transformation and abc/dq transformation of the ac system variables. The active and reactive currents injected by the DG are controlled...
Persistent link: https://www.econbiz.de/10011040546
Lately, the depletion as well as negative environmental impacts of fossil fuels have directed the vehicle technology towards new alternative systems. Accordingly, the studies on electric vehicles (EVs) utilizing electric motor (EM) instead of conventional vehicles using fossil fuel consumer...
Persistent link: https://www.econbiz.de/10010930686
In order to ensure the safe operation of the distribution network and to understand the operation of the distribution network, it is necessary to monitor the various operating parameters of the distribution network in real time and to send the various measurement parameters to the dispatching...
Persistent link: https://www.econbiz.de/10012043048
This paper presents two novel dynamic controllers for the Static Synchronous Compensator (STATCOM) device to stabilise Stand-Alone Wind Energy Conversion Systems (SWECS) using an induction generator. The unified AC system wind energy conversion scheme is connected to a hybrid electric load. The...
Persistent link: https://www.econbiz.de/10010670007
In this paper, a doubly fed variable speed wind induction generator connected to the grid associated to a flywheel energy storage system (FESS) is investigated. The dynamic behaviour of a wind generator, including the models of the wind turbine (aerodynamic), the doubly fed induction generator...
Persistent link: https://www.econbiz.de/10010804293
Reliable and powerful control strategies are needed for wind energy conversion systems to achieve maximum performance. A new control strategy for a variable speed, variable pitch wind turbine is proposed in this paper for the above-rated power operating condition. This multivariable control...
Persistent link: https://www.econbiz.de/10010804758
A new wind turbine emulator (WTE) is presented, which is able to simulate the turbine power curves without using a closed loop control system. The state of the art emulators use DC or AC motors, closed loop controlled by processors with the turbine power curves recorded. The presented emulator...
Persistent link: https://www.econbiz.de/10010805376
In this paper, a network power flux control of a variable speed wind generator is investigated. The wind generator system consists of a doubly fed induction generator (DFIG) connected to the network associated to a flywheel energy storage system (FESS). The dynamic behaviour of a wind generator,...
Persistent link: https://www.econbiz.de/10010806474
This paper considers the problem of power regulation for a variable speed wind turbine in the presence of a blade tip speed constraint, for example to limit noise emissions. The main contribution of the paper is the formulation of a policy for the regulation of the machine in the transition...
Persistent link: https://www.econbiz.de/10011044264