Neng Jin

TL;DR: A local measurement-based ultra-high-speed main protection is proposed, which has satisfactory performance against internal faults and is quite reliable in external fault and operating condition changes.

TL;DR: In this article, a single-phase-to-ground fault identification method based on D-S evidence theory was proposed, and two flexible fault isolation methods were further proposed to solve the overvoltage problem in wind farms.

TL;DR: A remedial pilot main protection scheme-based only on modulus information of measurements for a transmission line is proposed, independent of timing information, and has been validated by theoretical analysis and simulation tests.

TL;DR: A design method for the restraint current of multiterminal current differential protection is proposed that can significantly improve the criterion security for the case of additional data synchronization errors while maintaining the sensitivity of the internal fault.

TL;DR: A novel permissive pilot protection scheme is proposed based on the energy ratio between the backward traveling wave and the forward traveling wave that has an adequate reach to cover the entire length of the DC line, sufficient speed to isolate internal faults before the blocking of the converter, sufficient sensitivity and security for a 500-kV system, and sufficient robustness against disturbances.