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In this paper, external power systems are modeled as adaptive loads representing the tie-line flows varying with system operating conditions. The fuzzy inference system tuned by hybrid genetic-simulated annealing (HGSA-FIS) is proposed to predict the active and reactive power of adaptive loads from forecasted renewable energy (RE) generation and loads demand. The performance of proposed equivalent has been evaluated with an RTS-GMLC by comparing the power flow results in the internal system before and after equivalencing under varying RE and load demand scenarios. The results demonstrate the robustness of HGSA-FIS-based equivalent under varying RE generation and load demand. Furthermore, the proposed equivalent performs close to ANN-based equivalent and outperforms ANFIS-based equivalent. To practically implement the proposed approach, the neighboring system operators are required to exchange only the forecast data of RE generation and load demand, and the equivalent needs to be updated upon major grid changes.<\/jats:p>","DOI":"10.1155\/2022\/2971960","type":"journal-article","created":{"date-parts":[[2022,9,24]],"date-time":"2022-09-24T00:50:21Z","timestamp":1663980621000},"page":"1-19","source":"Crossref","is-referenced-by-count":2,"title":["Application of Data-Driven Tuned Fuzzy Inference System for Static Equivalencing of Power Systems with High Penetration of Renewable Energy"],"prefix":"10.1155","volume":"2022","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6238-2476","authenticated-orcid":true,"given":"Engidaw Abel","family":"Hailu","sequence":"first","affiliation":[{"name":"Pan African University Institute for Basic Sciences Technology and Innovation (PAUSTI), Juja, Kenya"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0402-4048","authenticated-orcid":true,"given":"George Nyauma","family":"Nyakoe","sequence":"additional","affiliation":[{"name":"Jomo Kenyatta University of Agriculture and Technology (JKUAT), Juja, Kenya"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8459-6088","authenticated-orcid":true,"given":"Christopher Maina","family":"Muriithi","sequence":"additional","affiliation":[{"name":"Murang\u2019a University of Technology (MUT), Murang\u2019a, Kenya"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","unstructured":"Alizadeh MousaviO.On Voltage and Frequency Control in Multi-Area Power Systems Security2014EPFLPh.D. dissertation Switzerland"},{"key":"2","unstructured":"Hug-GlazmannG.Coordinated Power Flow Control to Enhance Steady-State Security in Power Systems2008ETH ZurichSwitzerland Ph.D. dissertation"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1002\/2050-7038.12790"},{"first-page":"1","volume-title":"Decision Tree Based Filter for Control Area External Contingencies Screening","author":"K. 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