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The impact of numerous distributed generators (DGs) coupled with the implementation of virtual inertia on the transient stability of power systems has been studied extensively. Time-domain simulation is the most accurate and reliable approach to evaluate the dynamic behavior of power systems. However, the computational efficiency is restricted by their multi-time-scale property due to the combination...
The dynamic characteristics of active distribution networks (ADNs) need to be concerned if a large number of distributed generators are connected. A highly efficient and reliable simulation algorithm with good numerical stability is therefore essential for the stability analysis of ADNs. This paper proposes a novel dynamic simulation algorithm of ADNs based on the implicit projective method, which...
Periodic signal tracking is certainly easier than general signal tracking. This has been manifested for linear time-invariant systems by applying theories of repetitive control. However, because of the lack of corresponding theories, the difficulties in designing repetitive controllers for both periodic signal tracking and general signal tracking in nonlinear systems are similar or the same. In view...
In this paper we consider the flight-trajectory tracking problem of an input-disturbed non-minimum phase vertical takeoff and landing (VTOL) aircraft with delayed attitude measurements. By applying the first-order Pade?? approximation method to deal with the time delays, the problem is reduced to the output tracking of a new high-order non-minimum phase system without delay, whose dynamics are then...
From October 2008 the interconnection between northeast and north power grid switched from alternating current to direct current. It is urgent to research the stability of northeast power grid based on the real network data. This paper studied the stability changing by applying real-time time-domain simulation method and frequency-domain analysis method. Research result indicated that the stability...
Within northeast china, most of the areas where have abundant wind power resources are located in remote under developing regions. They usually have weak regional power grid. With more wind power system in large scale are connected into such weak regional power grid, it get more attention on the conflict of the wind power development and the stable and safe operation of the partially weak regional...
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