Analysis of Small Signal and Transient Stability under the Penetration of DFIG Integrated Wind Energy Conversion System

Prasad, Deepak Kumar; Seethalekshmi, K.; Verma, Preeti

doi:10.1109/upcon47278.2019.8980141

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…Despite their several favorable qualities, DFIG-WTs are susceptible to low voltage ride-through (LVRT) and low inertia problems during faults. The back-toback converter feedback loop is disconnected in DFIG-WT during faults, and the DFIG machine works like a squirrelcage induction generator (SCIG) at that time [3]. Therefore, to ensure the grid stability and power quality, certain technical regulations known as grid code requirements (GCRs) have been developed.…”

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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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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“…The study examined the effects of one voltage drop event on voltage, phase angle jump (PAJ), and the point on the wave (POW). The effects of DFIG penetration, small signal and transient stability were investigated in [15]. The wind energy with high penetration became source of sustained oscillations in the WECS.…”

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confidence: 99%

PWM Based VSC for Power Quality Assessment of Grid Integrated DFIG-WECS

Soomro

Memon

Kumar

2020

IJIE

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The world is experiencing wind energy with high penetration causing multifold increase in the wind energy capacity [1]. The wind energy conversion system (WECS) not only aims at maximizing the power at variable wind speeds but it should also provide good power quality [2]. Typically, due to its elegant performance with variable wind speeds, partial scale convertors, effective active and reactive power transfer and control capacities, low equipment costs and reduced power losses, DFIG has been chosen to maintain maximum power output [3]. It covers more than 50% of worldwide onshore large-scale wind power installations [4], [5]. The main problem with WECS on a converter basis is that frequency and voltage variations [ 6-7] are driven by the variable wind speed. Large oscillations in wind speed as stated above significantly change the power output as a result of irregular environmental conditions [8]. For the operational efficiency and reliability, DFIG based wind power generation must be capable of staying with power grid and contribute towards voltage stability. Since, DFIG uses a bidirectional VSC which enables it to receive and transfer reactive power [9-10].

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Low voltage ride through enhancement in interconnected system through center of inertia approach

Verma,

Kaimal,

Dwivedi

2024

Energy Efficiency of Modern Power and Energy Systems

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Analysis of Small Signal and Transient Stability under the Penetration of DFIG Integrated Wind Energy Conversion System

Cited by 5 publications

References 3 publications

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

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

PWM Based VSC for Power Quality Assessment of Grid Integrated DFIG-WECS

Low voltage ride through enhancement in interconnected system through center of inertia approach

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