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With the increasing development of wind power, the capacity of wind farms is larger and its impact on grid operation has become more prominent. The fault current that wind farms provide is much different from the traditional synchronous machines. Wind farms in China are mostly centrally connected to power system. The central integration enlarges the impacts on power system. The correct action of the...
As the electric power grid is pushed to its limits, efficiencies can be gained by properly using shunt capacitor banks. Protective relaying must be provided for these banks that will protect the system from abnormal conditions that could be caused by the capacitor bank as well as provide protection to the capacitor bank from abnormal conditions caused by system conditions or capacitor failed elements...
In order to find hidden cascading outage caused by protective relays, methods for modeling, simulating and online setting-checking of protective relays are studied here. A user-defined model is proposed based on a kind of scrip language and concept of component firstly. Based on that, the power system simulator in a commercial dispatcher training simulator is embedded with protective relay simulator,...
The complexity of power distribution grid has been highly increased with the extended scale of power systems over the past ten years. The capability of a power transmission system is evaluated by some factors involving stability, reliability and sensitivity. In order to enhance the performance of the power transmission system, a more credible automation approach regarding these vital elements is required...
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