Exact(1)
The non-linear control technique using sliding mode control (SMC) strategy is used to alter the dynamics of 1.5 MW wind turbine system connected to the grid under severe faults of grid voltage.
Similar(59)
In addition, a simulation example of active suspension control illustrates that the proposed switching system is able to maintain performance levels, and to preserve stability under the occurrence of severe faults in some of the sensors.
This approach is formulated as a two-stage problem, whose first-stage describes prior to fault occurrence and whose second-stage represents the power system behavior involving a set of severe faults.
Severe faults occurred in some important nodes may induce cascading failures and finally result in instability of whole system [4].
In university premises, electric power supply is available almost all the time and the problem of power outage only occurs in case of severe fault conditions which happens very rarely.
The impacts of a severe fault in the 500 kV grids can be transmitted almost unimpeded to more than one inverter station, thus causing concurrent CF in inverter stations.
Simulation results showed the effectiveness of the proposed strategy under severe fault conditions.
The number of parallel thyristors and the rating of fuses are coordinated to keep those devices within the explosion limit even under most severe fault conditions.
Traditionally, resistive-crowbar (i.e., R-crowbar) circuit is applied as the means of protection for the DFIG WT which efficiently protects the rotor-side converter (RSC) and dc-link capacitor against the effects of severe grid faults.
These measures are costly and time consuming but are necessary in order to avoid the severe consequences of faults–—especially short circuits–—during operation.
These fallacies are perhaps better understood as faults of explanation than faults of arguments.
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