Performance Improvement and Stability Enhancement in a Grid Connected PV-DFIG Hybrid System

c8ed4638-4bdc-4742-ab9c-1f8cdb3d1dbf20250804095618142wseas:wseasmdt@crossref.orgMDT DepositWSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS2224-266X1109-273410.37394/23201http://wseas.org/wseas/cms.action?id=2861214202521420252410.37394/23201.2025.24https://wseas.com/journals/cas/2025.phpPerformance Improvement and Stability Enhancement in a Grid Connected PV-DFIG Hybrid SystemAnkineedu PrasadPadamataElectrical and Electronics Engineering, Dr. YSR ANU College of Engineering & Technology, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur - 522 510, Andhra Pradesh, INDIAGudapati SambasivaRaoDepartment of Electrical & Electronics Engineering, R.V.R. & J.C. College of Engineering, Guntur - 522 019, Andhra Pradesh, INDIAThis manuscript introduces a novel method of incorporating sustainable-power solutions, explicitly wind(WT), and photovoltaic(PV), within a combined energy-setup, that incorporates a 250(kW) DFIGWTS and 100(KW) SPVS. The proposed system is interconnected at the DC-coupling point. In this configuration, the solar-PV System(SPVS) capacity is designed to match the GSC rating of the DFIG. The power from solar-PV is present, DFIG-Wind-Turbine System(DFIGWTS) functions at sub-synchronous-speeds(SSS) or operates under low-intensity-load. On the other hand, when wind-energy is accessible, DFIGWTS functions at hyper-synchronous-speed(HSS) to affirm efficient electric energy production, and smooth Grid collaboration. This system assimilation design can be evaluated, and verified through simulations in MATLAB. Both DFIGWTS and SPVS power resources are utilized efficiently, as demonstrated by these simulations. Grid-Integration challenges are also addressed, improving overall-system stability, and efficiency. A promising solution for sustainable energy generation is offered by this integrated approach. It helps lessen the dependence on classical energy systems. 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