This paper presents the analyzed results of using a high-voltage directcurrent (HVDC) link based on voltage-source converter (VSC) to achieve damping improvement of four parallel-operated doubly-fed induction generator (DFIG)-based offshore wind farms (OWFs) fed to a large power grid. A frequency-domain scheme based on eigenvalue analysis is carried out and a time-domain method based on nonline...

This paper proposes Fuzzy Logic Based STATCOM. It regulates the voltage at the point of common coupling (PCC) by injecting reactive power. This device also plays a vital role in enhancing stability for small and large transient disturbances in power system. Simulations using MATLAB / SIMULINK are carried out to verify the performance of STATCOM using fuzzy controller. The result shows that fuzz...

It is economic and secure to determine the optimal siting sizing of offshore wind farms (OWFs) integrated into AC system through voltage-source converter high-voltage direct current (VSC-HVDC) links. In this paper, an planning model for VSC-HVDC-link-based OWFs capacitors proposed, where a decomposition technique presented solve proposed mixed-integer nonlinear programming (MINLP) problem obtai...

The doubly-fed induction generators (DFIGs) integrated to the grid through voltage source converter-high direct current (VSC-HVDC), cascaded droop control from system frequency DC voltage, then active output of DFIG, was applied enhance regulation capability power system. improved dynamic flow (DPF) model newly proposed quantify response coordinated with inertia VSC-HVDC and DFIGs, primary sync...

This paper proposes a hybrid discontinuous control methodology for a voltage source converter (VSC), which is used in an uninterrupted power supply (UPS) application. The UPS controls the voltage at the point of common coupling (PCC). An LC filter is connected at the output of the VSC to bypass switching harmonics. With the help of both filter inductor current and filter capacitor voltage contr...

In this paper, the interconnection of a strong AC system to a weak AC system by using a Voltage Source Converter (VSC) based High Voltage DC (HVDC) transmission system is investigated. In this work, the weak AC system considered is an island system comprised of synchronous generators and passive load. Analysis is carried out for UPF load and inductive load. The ac filter requirement to achieve ...

Flexible ac transmission systems (FACTS) controller can provide better control than conventional control and achieve fast control response time. Static synchronous compensator (STATCOM) is one of the key FACTS devices based on voltage source converter (VSC) technology whose capacitive or inductive output current can be controlled independent of the ac system voltage. In this review paper, the a...

Voltage-sourced converter (VSC) based FACTS controllers are capable of providing fast voltage support and active power flow control to improve the power transfer capability over congested transmission paths. In most published literature, a shunt VSC such as a Static Synchronous Compensator (STATCOM) is set to control the bus voltage and a series VSC such as a Static Synchronous Series Compensat...

Voltage source converter (VSC) is the expected core technology that supports power system de-carbonization by allowing renewable energy development. However, with increasing penetration of renewables and continuing decommissioning thermal generators, challenges integrating VSC-based systems into weak even very ac grids become apparent. Therefore, this paper presents theoretical analysis describ...

This paper provides a detailed comparative study concerning the performance of min-projection strategy (MPS) and model predictive control (MPC) systems to control the three-phase grid connected converters. To do so, first, the converter is modeled as a switched linear system. Then, the feasibility of the MPS technique is investigated and its stability criterion is derived as a lower limit on th...