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At this time, the restructuring of power system is going to pass the early stages and become a well-known concept. However, it is impossible to say that supplying electricity is perfect now. There are still many works undergoing to increase the efficiency and functionality of restructured electricity markets. In this paper, a new concept for electricity markets has been proposed. This new concept...
Although there is considerable progress in the wind energy conversion technology, most of the currently installed wind turbines are using induction generators to convert mechanical energy to electrical one. The induction generators which are utilized in wind turbines and wind farms consume high amount of reactive power. Beside, since there is no voltage regulation installed for induction machines...
For evaluating the first swing stability (FSS) of power systems in the presence of doubly fed induction generator (DFIG) wind farms, a simple and unified model of DFIG is proposed in this paper. In addition the proposed DFIG model is carefully incorporated into the power system for fast FSS evaluation. The evaluation algorithm is also presented in details in the paper. Without losing generality, DFIG...
The microgrid concept has the potential to solve major problems arising from large penetration of distributed generation in distribution systems. A microgrid is not a robust system when compared to a power system. Therefore, proper control strategies should be implemented for a successful operation of a microgrid. This paper proposes the use of a coordinated control of reactive sources for the improvement...
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