Offshore wind farms (OWF) are establishing their position to be the next strategy expand growth horizon of power production. For proper integration OWFs into existing grid, voltage source converter (VSC)-based high direct current (HVDC) transmission is being vastly utilized. stable operation these VSC-HVDC-connected need abide by fault ride through (FRT) grid codes. Though there many proposed s...

HVDC Light is the most recent HVDC technology based on Voltage Source Converters (VSC) and extruded DC cables with power units up to 200 MW. HVDC Light converters include Insulated Gate Bipolar Transistors (IGBT’s) and operate with high frequency Pulse Width Modulation (PWM) in order to get high speed control of both active and reactive power. HVDC Light cable is a cable with insulation of extr...

Abstract—Static VAR System (SVS) is a kind of FACTS device which is used in power system primarily for the purpose of voltage and reactive power control. In this paper presents a systematic approach for designing SVS supplementary controller, which is used to improve the damping of power system oscillation. The combined bus voltage and line current (CBVLC) supplementary controller has been deve...

HVDC transmission systems are becoming increasingly popular when compared to conventional AC transmission methods. HVDC voltage source converters (VSC) can offer advantages over traditional HVDC current source converter topologies; as such, it is expected that HVDC-VSCs will be further exploited with the growth of HVDC transmission. This paper presents the DC fault ride through capability and n...

This paper investigates the ability of Immune Algorithm (IA) in designing a supplementary controller for Static Var Compensators (SVC) to damp the power system inter-area oscillation. For this the parameters of the supplementary controller are determined by IA using an eigenvalue-based objective function. The numerical results are presented on a 2-area 4-machine system to illustrate the feasibi...

The traditional HVDC plays an important role in the development of power grid. But the traditional HVDC cannot supply power either to entirely passive AC network or to weak AC system. In fact, an entirely passive AC network can be effectively powered through VSC-HVDC. However, the cost of investment in VSC-HVDC is amazingly high due to the limitation of power electronics technology. Based on CS...

In this paper an approach to designing low order controllers for a VSC HVDC terminal which are robust over a range of operating points is presented. An uncertainty region is used to characterise the operating range as described by a non-linear model of the terminal. An LMI based formulation is then used to synthesize low order controllers which maximize the size of the structured uncertainty re...

As one of the key technologies of large scale access of distributed energy resources, the HVDC transmission system has great potential for further development. Therefore, in the past decades, the problem associated with HVDC converters connected to weak AC networks has become an important research field. The one of particular interest, and highest in consequences, is the AC voltage stability at...