A possible detrimental effect of onshore series compensation in the GB grid is the appearance of subsynchronous resonance (SSR). In this paper, a control scheme for a VSC-HVDC link capable of damping subsynchronous oscillations is proposed in order to effectively counteract the potential damage caused by SSR in steam turbines. The VSC-HVDC link has been modelled to maintain its primary function...

Real-time simulation of a three-terminal high-voltage directcurrent (HVDC) grid connected to a doubly-fed induction generator (DFIG) based wind farm has been presented in this paper. A recently invented control strategy, known as powersynchronization control, is applied for the integration of the wind farm to the HVDC grid. The dynamic performance study of the system under normal wind power flu...

Remote offshore wind power plants are expected to be connected via HVDC systems to the main grids. The extension of single point-to-point HVDC systems into meshed HVDC grids is discussed actively. This leads the integration of DC technology into the collection grid of the wind farm to gain interest and relevance. Using DC technology in the collection grid demands the wind turbine systems to hav...

This paper presents the integration of the Voltage Source Converted-High Voltage Direct Current model| (VSCHVDC) into a conventional Optimal Power Flow (OPF) formulation. The assembled VSC-HVDC-OPF model is computationally implemented and solved by using the Matlab ® optimization toolbox. In this sense, the development complexity degree of the proposed implementation is equivalent to that requi...

This paper presents the HVDC system for power system to control the power flow between two converter stations. In this paper, rectifier side is used to control current and inverter side is used to control current as well as extinction angle. In power control system, proportional-integral (PI) controller is widely used. Here we compare its performance with conventional controller and artificial ...

Large offshore wind farms are recently emerging as promising alternative power sources. Long distances between offshore generation and onshore distribution grid demand new solutions for their connection to the AC network. HVDC systems based on voltage source converters (VSC) are a promising alternative to conventional AC transmission above a certain cable length. This paper presents a new VSC t...

Experience and theoretical analysis show that the voltage and power stability becomes an important issue when high-voltage direct current (HVDC) systems using line-commutated converters (LCC) are connected to AC systems with low short-circuit capacity and that these problems become more pronounced the lower the short-circuit capacity of the connected AC system is, as compared with the rating of...