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This paper presents the application of an adaptive neuro-fuzzy controller (ANFC) for speed control of the switched reluctance generator (SRG). In this study, the SRG is driven by a variable-speed wind turbine and connected to the grid through an asymmetric half bridge inverter, DC-link, and DC-AC inverter system. Speed control plays an important role in variable-speed operation of the SRG to ensure...
With the development of Distributed Generations (DGs), its inherent randomness and fluctuation in the power production is slowly demonstrated. The microgrid maybe solve the above problem. The traditional droop control technology is common in operation of DGs in Microgrids. But it presents a large frequency deviation when facing large load demand, which need to be solved. A new method is presented...
This paper presents an artificial neural network (ANN) technique for tuning of the proportional and integral (PI) gains of the static synchronous compensator which is used as a reactive power compensator in a wind diesel hybrid power system. The gains are optimized for typical values of the load voltage characteristics (nq) by conventional techniques. The method of multilayer feed forward ANN with...
One of the major protection concerns with distribution networks comprising distributed generation is unintentional islanding phenomenon. Expert diagnosis system is needed to distinguish network cut off from normal occurrences. An important part of synchronous generator is automatic load-frequency controller (ALFC). In this paper, a new approach based on clustering of input signal to governor is introduced...
This research is worked on the concept of the converter-controlled permanent magnet generator for wind power generation system. For nonlinear dynamics with unknown nonlinearities of the system, a neural network controller for achieving maximum power tracking as well as output voltage regulation for a wind energy conversion system (WECS) employing a transverse flux permanent magnet synchronous generator...
Although the results shown are based on a very simplistic model, they are very encouraging. Using an active panel under switched waveform control, the presence of failed elements can be compensated for by simply changing the switching waveform duty cycle. How, in practice, one would decide on what value to choose to dynamically dasiarepairpsila an active panel has yet to be considered. Even if such...
An on-chip buck converter with 3D chip stacking is proposed and the operation is experimentally verified. The manufactured converter achieves a maximum power efficiency of 62% for an output current of 70mA with a switching frequency of 200MHz and a 2x2mm on-chip LC output filter in 0.35mum CMOS. The use of glass epoxy interposer to increase the maximum power efficiency up to 71.3%, and the power efficiency...
In this paper a new 3-phase voltage disturbance generator is proposed. Voltage sag, swell, outage, and unbalance can be provided by the proposed scheme. The main devices of the proposed generator are SCR thyristors, sliding type autotransformers, and transformers. Therefore, the generator has good features of high reliability, high efficiency, and low cost implementation with simple structure. Furthermore,...
The position-location problem is that of computing the coordinates of a set of objects in space (usually a plane) from a sparse set of distance measurements. Because the problem is analogous to that of constructing a pin-Jointed structure from rigid bars (of given respective lengths), it is intimately linked to problems of structural rigidity. In addition to its practical significance, the problem...
A generalization of automata theory is constructed using multivalued functions of several arguments and with several results rather than the single valued functions of a single argument which appear in conventional automata theory. Algebraic rules are developed for composing such functions which enable one to specify an element of a semigroup which represents a composite function and a convenient...
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