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The transient stability evaluation of power system with consideration of large-scale grid-connected wind farms of Doubly-fed Induction Generator (DFIG) type was elaborately discussed in this paper. In accordance with an equivalent generator/converter model, the comprehensive numerical simulations involving multiple wind farm connections were carried out to reveal the impacts of wind farm on dynamic...
A new COI-based backstepping sliding-mode method for emergency frequency control of interconnected AC/DC power systems is proposed in this paper. It aims to provide inter-area power support to the disturbed control area(s) through the intact interconnecting structure under emergency conditions, when the normal Automatic Generation Control (AGC) is suspended to avoid worsening frequency stability....
In this paper, the doubly-fed induction generator (DFIG) for transient stability evaluations of power systems was systematically discussed, and the impacts of grid-connected large DFIG based wind farms on power system transient stability were then studied in detail. In the modeling of DFIG, an equivalent generator model was employed to reflect the combined behavior of the DFIG and its rotor converter...
A task level intelligent computing architecture, called as smart workstation cluster distributed parallel computing model, is presented for transient stability constrained total transfer capability (TTC) evaluation of large scale interconnected power system with respect to a specified contingency set. The proposed intelligent distributed parallel computing mode can effectively integrate the heterogeneous...
This paper presents a new control strategy for superconducting magnetic energy storage (SMES). The control strategy fully utilizes the flexibility of SMES in exchanging active and reactive powers with power systems in four quadrants to control tie-line power flow. The objective is to synchronize centre of inertial of sending and receiving subsystem under transient conditions and quickly damp post-fault...
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