Special Issue on HVDC for Grid Services in Electric Power Systems.

This paper compared DC fault handling performance in variable fault location on a DC line. 6 Lee H.-Y., Asif M., Park K.-H., Lee B.-W. Assessment of Appropriate MMC Topology Considering DC Fault Handling Performance of Fault Protection Devices. 8 Lee G., Moon S., Hwang P. A Frequency-Power Droop Coefficient Determination Method of Mixed Line-Commutated and Voltage-Sourced Converter Multi-Infeed, High-Voltage, Direct Current Systems: An Actual Case Study in Korea. [Extracted from the article]