Overview Strategy of Wind Farm in VSC-HVDC Power Transmission

The VSC-HVDC system performance has the most competitive and new feasible solution for integration of high wind penetration at offshore sites for efficient power transmission. This paper presents an overview of various control strategy for power converters and the plan of services in VSC-HVDC transmission. For long distance transmission line, reactance limits the transfer capability of high voltage alternating current (HVAC) system. With the advancement of VSC-HVDC technology reactance can be smoothly controlled, hence transfer capability can be enhanced. VSC-HVDC (voltage source converter- high voltage direct current) technology also meets the challenges that are faced by 2-level and multilevel converters. Rapid developments in IGBT open new gate for controlled strategy in converters. Due to this there is a paradigms shift in interfacing renewable energy with electric power system. The real and reactive power can be controlled indepedently by using VSC-HVDC system and black start capability is restored by an AC grid. This paper lays focus on VSC-HVDC transmission technology with integration offshore wind power. It will help operating engineers, designers, and research scholars to focus on this work and decision making. VSC-HVDC transmissions are giving ease of belongingness to energy transition.