Improve power oscillation stability in a grid connected wind power system by using a Static Var Compensator

Bui, Van-Tri; Truong, Dinh-Nhon; Ho, Dac-Loc

doi:10.1109/icsse.2017.8030865

Cited by 6 publications

(1 citation statement)

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“…Storage devices are also used for the enhancement of LVRT as they provide active power support in the system. Energy-storage-based devices such as batteries [15], super-capacitors [16], fly wheel energy storage [17], and cooperative approach of a crowbar and SDBR with superconducting magnetic energy storage (SMES) [18] are used to minimize the DC-link fluctuations across the capacitor and provide active power support during disconnection or fault. These FRT solutions, however, exhibit thermal runaway at high penetration and overcharging problems.…”

Section: Introductionmentioning

confidence: 99%

A Cooperative Approach of Frequency Regulation Through Virtual Inertia Control and Enhancement of Low Voltage Ride-through in DFIG-based Wind Farm

Verma

Seethalekshmi

Dwivedi

2022

Journal of Modern Power Systems and Clean Energy

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Doubly-fed induction generator (DFIG)-based wind farms (WFs) are interfaced with power electronic converters. Such interfaces are attributed to the low inertia generated in the WFs under high penetration and that becomes prevalent in a fault scenario. Therefore, transient stability enhancement along with frequency stability in DFIG-based WFs is a major concern in the present scenario. In this paper, a cooperative approach consisting of virtual inertia control (VIC) and a modified grid-side converter (GSC) approach for low voltage ridethrough (LVRT) is proposed to achieve fault ride-through (FRT) capabilities as per the grid code requirements (GCRs) while providing frequency support to the grid through a synthetic inertia. The proposed approach provides LVRT and reactive power compensation in the system. The participation of the VIC in a rotor-side converter (RSC) provides frequency support to the DFIG-based WFs. The combined approach supports active power compensation and provides sufficient kinetic energy support to the system in a contingency scenario. Simulation studies are carried out in MATLAB/Simulink environment for symmetrical and unsymmetrical faults. The superiority of the proposed scheme is demonstrated through analysis of the performance of the scheme and that of a series resonance bridgetype fault current limiter (SR-BFCL). Index Terms--Virtual inertia controller (VIC), doubly-fed induction generator (DFIG), fault ride-through (FRT) capability, wind farm (WF), fault current limiter (FCL).

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