The calculation of the main circuit parameters is basic part engineering design for high voltage direct current (HVDC) transmission systems. Compared to conventional line commutated converter (LCC), application capacitor (CCC) can reduce probability commutation failures and shunt reactive compensation. This paper proposes a method CCC-based HVDC system. Firstly, topology CCC-HVDC system describ...

Compared to conventional DC transmission, Voltage source converter based high voltage direct current transmission (VSC-HVDC) has the advantages of independently controllable power, no commutation failure, reactive power compensation and low harmonic levels. However, VSC-HVDC cannot provide effective frequency support regulation for system after grid connection. For this reason, an adaptive neur...

High-power thyristors with direct light -triggering and integrated protection functions can be utilized advantageously for applications in which several thyristors are connected in series. This applies in particular to High-Voltage DC (HVDC) transmission, Static Var Compensation (SVC), converters for medium voltage drives, and also to certain pulse power applications. Recent progress in both de...

High voltage direct current (HVDC) transmission system has the advantages of large capacity, long distance and low loss. Relying on HVDC transmission, China established a large-scale energy channel in west, effectively solving problem uneven local distribution. However, will generate ground when it is operating single pole, which cause DC bias effect transformer. At this time, core magnetic cir...

This paper focuses on generic Type 4 wind turbine generators models, their applicability in modern HVDC connections and their capability to provide advanced ancillary services therefrom. A point-to-point HVDC offshore connection is considered. Issues concerning coordinated HVDC and wind farm control as well as the need of a communication link are discussed. Two possible control configurations a...

s : This paper proposes the improvement of power flow during transient condition of HVDC light using PI Controller. The Optimal design of PI controller for a HVDC light is a challenging task and time consuming using the conventional techniques. This work presents analysis of transient stability of HVDC link using PI controller, and the stability has been improved by optimized gains of PI contro...

Recent technological developments in modular multilevel converter-based high-voltage direct current (MMC-HVDC) transmission systems have shown significant advantages over the traditional HVDC and two-level voltage source converter (VSC) systems. However, there are a lack of studies on protection methods for MMC-HVDC overhead lines where method should be able to provide fast accurate response id...