With the fast developments of power electronics, shunt Flexible AC Transmission Systems (FACTS) devices, particularly Static Synchronous Compensators (STATCOMs), have been proposed and implemented in many wind energy systems (WESs). STATCOMs are used to enhance the integration of WESs into existing power systems by controlling power flow between the WESs and the grid, thereby ensuring compliance with grid codes. These devices enhance the grid-connected WES stability and reliability against different fault scenarios. This paper provides a comprehensive review of the application of STATCOMs along with their control methodologies. The review includes the role and configuration of the STATCOM in WES, as well as its role in mitigating various fault events, including three-phase to ground faults, sag-swell conditions, and ferroresonance events. The paper also discusses the control methodologies in STATCOM-WES, including classical PI controllers, optimized PI controllers, and adaptive control techniques, and their performance against different fault scenarios. Furthermore, the future trends in shunting FACTS technology for renewable energy integration are also explored. The review combines results from numerous case studies and simulation-based assessments, highlighting the role of STATCOM in WES to enhance system performance while supporting the low-voltage ride-through (LVRT) and fault ride-through (FRT) capabilities of grid-tied WESs. The study finds that STATCOMs are necessary for the reliable integration of WES into the power grid. It also highlights future trends, such as hybrid systems with energy storage and wide-bandgap semiconductors, that will enhance their efficiency.
AbdelsattarMArafa HafezWElbasetA, et al. (2022) Voltage stability improvement of an Egyptian power grid‐based wind energy system using STATCOM. Wind Energy25(6): 1077–1120. https://doi.org/10.1002/we.2716
2.
Abdollahi ChiraniAKaramiA (2024) Investigation of the impact of SSSC-based FLC on the stability of power systems connected to wind farms. International Transactions on Electrical Energy Systems2024: 1–24. https://doi.org/10.1155/2024/1074029
3.
AlemannoARonchiFRossiC, et al. (2023) Design of a 350 kW DC/DC converter in 1200-V SiC module technology for automotive component testing. Energies16(5): 2341. https://doi.org/10.3390/en16052341
4.
AlhejjiAMosaadMI (2021) Performance enhancement of grid-connected PV systems using adaptive reference PI controller. Ain Shams Engineering Journal12(1): 541–554. https://doi.org/10.1016/j.asej.2020.08.006
5.
ArulampalamABarnesMJenkinsN, et al. (2006) Power quality and stability improvement of a wind farm using STATCOM supported with hybrid battery energy storage. IEE Proceedings - Generation, Transmission and Distribution153(6): 701. https://doi.org/10.1049/ip-gtd:20045269
6.
AthamnehAMajaliBA (2021) Voltage stability enhancement for large scale squirrel cage induction generator based wind turbine using STATCOM. International Journal of Power Electronics and Drive Systems12(3): 1784. https://doi.org/10.11591/ijpeds.v12.i3.pp1784-1794
7.
BandaJKAraujoLSD’ArcoS, et al. (2025) A reactive power boosting strategy for BESS-STATCOMs. IEEE Journal of Emerging and Selected Topics in Industrial Electronics6(4): 1258–1270. https://doi.org/10.1109/JESTIE.2025.3545888
8.
BergerMKocarIFarantatosE, et al. (2022) Dual control strategy for grid-tied battery energy storage systems to comply with emerging grid codes and fault ride through requirements. Journal of Modern Power Systems and Clean Energy10(4): 977–988. https://doi.org/10.35833/MPCE.2021.000182
9.
BouderbalaMBossoufiBDebleckerO, et al. (2021) Experimental validation of predictive current control for DFIG: FPGA implementation. Electronics10(21): 2670. https://doi.org/10.3390/electronics10212670
10.
CanizaresCAFaurZT (1999) Analysis of SVC and TCSC controllers in voltage collapse. IEEE Transactions on Power Systems14(1): 158–165. https://doi.org/10.1109/59.744508
11.
CastanedaJEnslinJElizondoD, et al. (2010) Application of STATCOM with energy storage for wind farm integration. IEEE PES T&D2010: 1–6. https://doi.org/10.1109/TDC.2010.5484308
12.
ChangY-CChangR-F (2013) Maximization of transmission system loadability with optimal FACTS installation strategy. Journal of Electrical Engineering and Technology8(5): 991–1001. https://doi.org/10.5370/JEET.2013.8.5.991
13.
ChatterjeeDGhoshA (2011) Improvement of transient stability of power systems with STATCOM-controller using trajectory sensitivity. International Journal of Electrical Power & Energy Systems33(3): 531–539. https://doi.org/10.1016/j.ijepes.2010.12.005
14.
CIGRE Working Group B4.85. (2023) Global trends in FACTS deployment(Technical Brochure No. 876). CIGRE.
15.
DarabianMJalilvandA (2018) Improving power system stability in the presence of wind farms using STATCOM and predictive control strategy. IET Renewable Power Generation12(1): 98–111. https://doi.org/10.1049/iet-rpg.2016.0812
16.
DevabalajiKRRaviK (2014) Power quality improvement in wind farm connected to grid using STATCOM. In: 2014 International Conference on Advances in Electrical Engineering (ICAEE), pp. 1–5. https://doi.org/10.1109/ICAEE.2014.6838508
17.
El MetwallyMMEl EmaryAAEl BendaryFMMossadMI (2006). Using FACTS controllers to balance distribution systems based ANN. In: 2006 Eleventh International Middle East Power Systems Conference, Egypt, pp. 81–86. El-Minia.
18.
GanoseAMScanlonDOWalshA, et al. (2022) The defect challenge of wide-bandgap semiconductors for photovoltaics and beyond. Nat Commun13: 4715. Available at: https://doi.org/10.1038/s41467-022-32131-4
19.
GhaediSAbazariSArab MarkadehG (2022) Novel non‐linear control of DFIG and UPFC for transient stability increment of power system. IET Generation, Transmission & Distribution16(19): 3799–3813. https://doi.org/10.1049/gtd2.12546
20.
GuchhaitPKBanerjeeA (2020) Stability enhancement of wind energy integrated hybrid system with the help of static synchronous compensator and symbiosis organisms search algorithm. Protection and Control of Modern Power Systems5(1): 11. https://doi.org/10.1186/s41601-020-00158-8
21.
HanGKimJParkS, et al. (2025) Thermal management of wide-bandgap power semiconductors: strategies and challenges in SiC and GaN power devices. Electronics14(21): 4193. https://doi.org/10.3390/electronics14214193
22.
HassaneinWSAhmedMMOsama abed el-RaoufM, et al. (2020) Performance improvement of off-grid hybrid renewable energy system using dynamic voltage restorer. Alexandria Engineering Journal59(3): 1567–1581. https://doi.org/10.1016/j.aej.2020.03.037
23.
IbrahimAMGawishSAEl-AmaryNH, et al. (2019) STATCOM controller design and experimental investigation for wind generation system. IEEE Access7: 150453–150461. https://doi.org/10.1109/ACCESS.2019.2946141
24.
IbrahimYRashadAKamelS, et al. (2021) Performance of PMSG-wind power plant during three phase faults with ANN based control of STATCOM. In: 2021 IEEE International Conference on Automation/XXIV Congress of the Chilean Association of Automatic Control (ICA-ACCA), pp. 1–6. https://doi.org/10.1109/ICAACCA51523.2021.9465314
KamelOMDiabAAZDoTD, et al. (2020) A novel hybrid ant colony-particle swarm optimization techniques based tuning STATCOM for grid code compliance. IEEE Access8: 41566–41587. https://doi.org/10.1109/ACCESS.2020.2976828
32.
KamelBKAttiaMAShaabanMF, et al. (2024) Index based techno-economic assessment of FACTS devices installed with wind farms. IEEE Access12: 19724–19738. https://doi.org/10.1109/ACCESS.2024.3356866
33.
KuangHZhengLLiS, et al. (2019) Voltage stability improvement of wind power grid‐connected system using TCSC‐STATCOM control. IET Renewable Power Generation13(2): 215–219. https://doi.org/10.1049/iet-rpg.2018.5492
34.
KumarAShankarG (2018) Dynamic stability enhancement of TCSC‐based tidal power generation using quasi‐oppositional harmony search algorithm. IET Generation, Transmission & Distribution12(10): 2288–2298. https://doi.org/10.1049/iet-gtd.2017.1117
35.
KumarRSinghRAshfaqH (2020) Stability enhancement of induction generator–based series compensated wind power plants by alleviating subsynchronous torsional oscillations using BFOA‐optimal controller tuned STATCOM. Wind Energy23(9): 1846–1867. https://doi.org/10.1002/we.2521
36.
LanYDuS (2023) Improvement of grid-connected reactive power compensation for wind farms based on STATCOM. Journal of Physics: Conference Series2427(1): 012004. https://doi.org/10.1088/1742-6596/2427/1/012004
37.
LiWWangNGargA, et al. (2023) Multi-objective optimization of an air cooling battery thermal management system considering battery degradation and parasitic power loss. Journal of Energy Storage58: 106382. https://doi.org/10.1016/j.est.2022.106382
38.
LiuLZhangZZhaoY, et al. (2025) Data-driven model-free adaptive control for power converter under multiscenarios in microgrids. IEEE Transactions on Industrial Electronics72(8): 8060–8071. https://doi.org/10.1109/TIE.2024.3525142
39.
MahfouzMMAEl‐SayedMAH (2014) Static synchronous compensator sizing for enhancement of fault ride‐through capability and voltage stabilisation of fixed speed wind farms. IET Renewable Power Generation8(1): 1–9. https://doi.org/10.1049/iet-rpg.2012.0365
40.
MohodSWAwareMV (2010) A STATCOM-control scheme for grid connected wind energy system for power quality improvement. IEEE Systems Journal4(3): 346–352. https://doi.org/10.1109/JSYST.2010.2052943
41.
MolinasMJonASUndelandT (2008) Low voltage ride through of wind farms with cage generators: STATCOM versus SVC. IEEE Transactions on Power Electronics23(3): 1104–1117. https://doi.org/10.1109/TPEL.2008.921169
42.
MosaadMI (2018) Model reference adaptive control of STATCOM for grid integration of wind energy systems. IET Electric Power Applications12(5): 605–613. https://doi.org/10.1049/iet-epa.2017.0662
43.
MosaadMI (2020) Direct power control of SRG‐based WECSs using optimised fractional‐order PI controller. IET Electric Power Applications14(3): 409–417. https://doi.org/10.1049/iet-epa.2019.0194
44.
MosaadMI (2025) Adaptive control universality of STATCOM for efficient wind energy conversion systems. Wind Engineering49(2): 306–320. https://doi.org/10.1177/0309524X241266947
45.
MosaadMISabihaAN (2022) Ferroresonance overvoltage mitigation using STATCOM for grid-connected wind energy conversion systems. Journal of Modern Power Systems and Clean Energy10(2): 407–415. https://doi.org/10.35833/MPCE.2020.000286
46.
MosaadMIElkalashyNIAshmawyMG (2018) Integrating adaptive control of renewable distributed switched reluctance generation and feeder protection coordination. Electric Power Systems Research154: 452–462. https://doi.org/10.1016/j.epsr.2017.09.017
47.
MosaadMIAbed El-RaoufMOAl-AhmarMA, et al. (2019) Optimal PI controller of DVR to enhance the performance of hybrid power system feeding a remote area in Egypt. Sustainable Cities and Society47: 101469. https://doi.org/10.1016/j.scs.2019.101469
48.
MosaadMIAlenanyAAbu‐SiadaA (2020) Enhancing the performance of wind energy conversion systems using unified power flow controller. IET Generation, Transmission & Distribution14(10): 1922–1929. https://doi.org/10.1049/iet-gtd.2019.1112
49.
MosaadMSabihaNAbu-SiadaA, et al. (2022) Application of superconductors to suppress ferroresonance overvoltage in DFIG-WECS. IEEE Transactions on Energy Conversion37(2): 766–777. https://doi.org/10.1109/TEC.2021.3126602
50.
MoursiMSESharafAM (2006) Novel STATCOM controllers for voltage stabilisation of wind energy scheme. International Journal of Global Energy Issues26(3/4): 382. https://doi.org/10.1504/IJGEI.2006.011265
51.
MuyeenSM (2015) A combined approach of using an SDBR and a STATCOM to enhance the stability of a wind farm. IEEE Systems Journal9(3): 922–932. https://doi.org/10.1109/JSYST.2013.2297180
52.
Osama abed el-RaoufMMageedASalamaMM, et al. (2023) Performance enhancement of grid-connected renewable energy systems using UPFC. Energies16(11): 4362. https://doi.org/10.3390/en16114362
53.
PengFZJinW(n.d.) A universal STATCOM with delta-connected cascade multilevel inverter. In: 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551), pp. 3529–3533. https://doi.org/10.1109/PESC.2004.1355099
54.
QiaoWVenayagamoorthyGKHarleyRG (2009) Real-time implementation of a STATCOM on a wind farm equipped with doubly fed induction generators. IEEE Transactions on Industry Applications45(1): 98–107. https://doi.org/10.1109/TIA.2008.2009377
55.
RamirezDMartinezSBlazquezF, et al. (2012) Use of STATCOM in wind farms with fixed-speed generators for grid code compliance. Renewable Energy37(1): 202–212. https://doi.org/10.1016/j.renene.2011.06.018
56.
RoyCParkhidehB (2019) Design consideration for characterization and study of dynamic on state resistance of GaN devices. In: 2019 IEEE 7th Workshop on Wide Bandgap Power Devices and Applications (WiPDA), pp. 181–186. https://doi.org/10.1109/WiPDA46397.2019.8998909
57.
SarkarTGuptaSPaulC, et al. (2025) Optimal allocation of STATCOM for multi-objective ORPD problem on thermal wind solar hydro scheduling using driving training based optimization. Scientific Reports15(1): 19594. https://doi.org/10.1038/s41598-025-02636-1
58.
SenDAcharjeeP (2023) Optimal allocation of UPFC based on healthy and stressed zones for critical power systems. Engineering Science and Technology, an International Journal40: 101381. https://doi.org/10.1016/j.jestch.2023.101381
59.
ShahzadSAlsenaniTRAlrumayhAN, et al. (2025) Fault ride-through capability improvement in hydrogen energy-based distributed generators using STATCOM and deep-Q learning. International Journal of Hydrogen Energy143: 1000–1012. https://doi.org/10.1016/j.ijhydene.2024.12.251
60.
SharmaSGuptaSZuhaibM, et al. (2024) A comprehensive review on STATCOM: Paradigm of modeling, control, stability, optimal location, integration, application, and installation. IEEE Access12: 2701–2729. https://doi.org/10.1109/ACCESS.2023.3345216
61.
ShiJKalamAShiP (2015) Improving power quality and stability of wind energy conversion system with fuzzy-controlled STATCOM. Australian Journal of Electrical and Electronics Engineering12(3): 183–193. https://doi.org/10.1080/1448837X.2015.1092918
62.
ShuJWangHTaoM, et al. (2025) Stacked strongly coupled GaN/SiC cascode device with fast switching and reclaimed strong d v/d t control. IEEE Transactions on Electron Devices72(5): 2647–2653. https://doi.org/10.1109/TED.2025.3545402
63.
SinghBMurthySSGuptaS (2004) Analysis and design of STATCOM-based voltage regulator for self-excited induction generators. IEEE Transactions on Energy Conversion19(4): 783–790. https://doi.org/10.1109/TEC.2004.827710
64.
SperstadIBDegefaMZKjølleG (2020) The impact of flexible resources in distribution systems on the security of electricity supply: a literature review. Electric Power Systems Research188: 106532. https://doi.org/10.1016/j.epsr.2020.106532
65.
SwainDViswavandyaMDashR, et al. (2023) P2P coordinated control between SPV and STATCOM in a microgrid for power quality compensation using LSTM–genetic algorithm. Sustainability15(14): 10913. https://doi.org/10.3390/su151410913
66.
TangTXieYWangX, (2011) “Active disturbance rejection control of D-STATCOM under unbalanced voltage conditions,” International Conference on Mechatronic Science, Electric Engineering and Computer (MEC),Jilin, China, 2011, pp. 1440–1444. https://doi.org/10.1109/MEC.2011.6025742
67.
Vázquez HernándezCSerrano GonzálezJFernández-BlancoR (2019) New method to assess the long-term role of wind energy generation in reduction of CO2 emissions – case study of the European Union. Journal of Cleaner Production207: 1099–1111. https://doi.org/10.1016/j.jclepro.2018.09.249
68.
Vijay KumarBRamaiahV (2020) Enhancement of dynamic stability by optimal location and capacity of UPFC: a hybrid approach. Energy190: 116464. https://doi.org/10.1016/j.energy.2019.116464
69.
WangLHsiungC-T (2011) Dynamic stability improvement of an integrated grid-connected offshore wind farm and marine-current farm using a STATCOM. IEEE Transactions on Power Systems26(2): 690–698. https://doi.org/10.1109/TPWRS.2010.2061878
70.
WangLTruongD-N (2013) Dynamic stability improvement of four parallel-operated PMSG-based offshore wind turbine generators fed to a power system using a STATCOM. IEEE Transactions on Power Delivery28(1): 111–119. https://doi.org/10.1109/TPWRD.2012.2222937
71.
WangSChenSGeL, et al. (2016) Distributed generation hosting capacity evaluation for distribution systems considering the robust optimal operation of OLTC and SVC. IEEE Transactions on Sustainable Energy7(3): 1111–1123. https://doi.org/10.1109/TSTE.2016.2529627
72.
WangP-KLiuY-JLinJ-T, et al. (2022) Harris hawks optimization-based algorithm for STATCOM voltage regulation of offshore wind farm grid. Energies15(9): 3003. https://doi.org/10.3390/en15093003
73.
WuXWangMShahidehpourM, et al. (2021) Model-free adaptive control of STATCOM for SSO mitigation in DFIG-based wind farm. IEEE Transactions on Power Systems36(6): 5282–5293. https://doi.org/10.1109/TPWRS.2021.3082951
74.
XiongX (2020) Common-mode insertion indices compensation with capacitor voltages feedforward to suppress circulating current of MMCs. CPSS Transactions on Power Electronics and Applications5(2): 103–113. https://doi.org/10.24295/CPSSTPEA.2020.00009
75.
XiongLZhuoFWangF, et al. (2016) Static synchronous generator model: a new perspective to investigate dynamic characteristics and stability issues of grid-tied PWM inverter. IEEE Transactions on Power Electronics31(9): 6264–6280. https://doi.org/10.1109/TPEL.2015.2498933
76.
ZhangYYangYChenX, et al. (2021) Intelligent parameter design-based impedance optimization of STATCOM to mitigate resonance in wind farms. IEEE Journal of Emerging and Selected Topics in Power Electronics9(3): 3201–3215. https://doi.org/10.1109/JESTPE.2020.3020434
77.
ZhongQWeissG (2009) Static Synchronous Generators for Distributed Generation and Renewable Energy. IEEE/PES Power Systems Conference and Exposition,Seattle, WA, 15-18 March 2009, 1–6. https://doi.org/10.1109/PSCE.2009.4840013
