Abstract: In modern DC metro traction power systems, rapid DC fault protection is of paramount importance, as DC faults can escalate quickly and generate high-energy fault currents. Due to the ...

India has in the past voted against a draft resolution of the United Nations General Assembly on the abolition of the death penalty. The death penalty has long been a point of contention, with strong ...

For the black start-up of DC micro-grids, three-phase charging resistors are required to limit the uncontrollable surge current. The main drawback of this start-up method is the difficulty in ...

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Continuous commutation failure is very likely to occur in the hybrid Multi-infeed high-voltage direct current (HMIDC) after AC failure. In order to improve the recovery quality after HMIDC failure, an ...

In 1960, the large-angle type PM step motor was the most used step motor. This two-phase, bifilar wound PM step motor (top) advanced 45° mechanical with each pulse from the drive, while by 1962 PM ...