An adaptive droop-based hierarchical optimal voltage control (DHOVC) scheme is proposed for voltage-source converter high-voltage-direct-current (VSC-HVdc) connected offshore wind farms (WFs). The turbines (WTs) and WF side VSC (WFVSC) are coordinated to minimize the deviations of buses inside from nominal mitigate reactive power (Var) fluctuations WTs. model predictive used improve performance...

Due to the subsynchronous interaction between grid-side converter (GSC) of wind farms and rectifier (REC) voltage source converter-based high-voltage direct current (VSC-HVDC) transmission system, oscillations (SSOs) may occur in direct-drive with VSC-HVDC systems. Considering nonlinearities uncertainties a nonlinear SSO mitigation strategy is proposed this article based on feedback linearizati...

The Interline Power Flow Controller (IPFC) is a voltage source converter based Flexible AC Transmission System (FACTS) controller for series compensation and power flow management among substation's multiline transmission systems. Individual Voltage Source Converters (VSC) can inject reactive that be adjusted to manage active in line. This VSC used convert DC the kept constant entire process. I...

This paper includes the performance of a Flexible Alternating Current Transmission Systems (FACTS) device, namely, STATic synchronous COMpensator (STATCOM) based on 6, 12, 24 and 48-pulse Voltage Source Converter (VSC), for the mitigation of voltage-dip caused by the starting of a high power induction motor. The different configuration of the STATCOM’s implemented improves the voltage profile f...

––This paper describes the performance of a Flexible Alternating Current Transmission Systems (FACTS) device, namely, STATic synchronous COMpensator (STATCOM) based on 48-pulse Voltage Source Converter (VSC), for the mitigation of voltage-dip caused by the starting of a high power induction motor. It improves the voltage profile feeding to a high power induction motor at starting by injecting a...

This paper presents a control strategy for fuel cell/energy storage power generation system during voltage sag conditions. The hybrid DC power sources are connected to grid using power electronic converters include DC-DC converter and grid connected voltage source inverter. The power from hybrid power sources is controlled during voltage sag by designing of control strategy for DC-DC converter....

Static synchronous compensator (STATCOM) is a shunt connected voltage source converter (VSC), which can affect rapid control of reactive flow in the transmission line by controlling the generated a.c. voltage. The main aim of the paper is to design a power system installed with a Static synchronous compensator (STATCOM) and demonstrates the application of the linearised Phillips-heffron model i...

This Paper presents the orientation procedure for diagnosing the power quality problems in different fault occurring conditions by using Distribution STATCOM (DSTATCOM) with linear loads. Here the resistance switching is used to get the pure sinusoidal voltage compensation. This modelling and simulation of D-STATCOM is achieved by using pure sinusoidal Pulse Width Modulation Technique. The majo...

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...

High-voltage dc transmission based on voltage-source converter (VSC-HVdc) is quickly increasing its power rating, and it can be the most appropriate link for the connection of offshore wind farms (OWFs) to the grid in many locations. This paper presents a steady-state operation model to calculate the optimal power transmission of an OWF connected to the grid through a VSC-HVdc link. The wind tu...