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Dr Nur Sarma's Outputs (28)

Dual polarity multi-level boost DC-DC converter (2024)
Presentation / Conference Contribution
Blackhorse-Hull, D., Mohanan-Leela, P., Alsafrani, A., Sarma, N., Crabtree, C., & Horsfall, A. (2024, June). Dual polarity multi-level boost DC-DC converter. Presented at 13th International Conference on Power Electronics, Machines and Drives (PEMD 2024), Nottingham, UK

Power Quality Investigation of a Grid-Connected Single-Phase Bidirectional AC/DC for Electric Vehicle Applications (2024)
Presentation / Conference Contribution
Genc, S., Gezegin, C., Ozgonenel, O., Akpinar, K. N., Gundogdu, B., & Sarma, N. (2024, May). Power Quality Investigation of a Grid-Connected Single-Phase Bidirectional AC/DC for Electric Vehicle Applications. Presented at 2024 12th International Conference on Smart Grid (icSmartGrid), Setubal, Portugal

The number of electric vehicles (EVs) is growing rapidly in almost all countries, and as a result, the power consumption to charge EVs is also sharply increasing. The characteristics of EV charging are extremely variable, which creates negative impac... Read More about Power Quality Investigation of a Grid-Connected Single-Phase Bidirectional AC/DC for Electric Vehicle Applications.

Suppression of Conducted Emissions in Three-Phase Adjustable Drive Systems (2023)
Presentation / Conference Contribution
Genc, S., Sarma, N., Gundogdu, B., Ozgonenel, O., Gezegin, C., & Terzi, U. K. (2023, November). Suppression of Conducted Emissions in Three-Phase Adjustable Drive Systems. Presented at 2023 14th International Conference on Electrical and Electronics Engineering (ELECO), Bursa, Turkiye

The fundamental issue with high switching power converters is electromagnetic interference. The converter design must be electromagnetically compliant for an operation to be secure. Filters play a crucial role in mitigating electromagnetic interferen... Read More about Suppression of Conducted Emissions in Three-Phase Adjustable Drive Systems.

Model Predictive Controlled Application of Power Management Algorithm for Battery Energy Storage System Providing Frequency Ancillary Service (2023)
Presentation / Conference Contribution
Akpinar, K. N., Sarma, N., Gundogdu, B., & Ozgonenel, O. (2023, November). Model Predictive Controlled Application of Power Management Algorithm for Battery Energy Storage System Providing Frequency Ancillary Service. Presented at 2023 14th International Conference on Electrical and Electronics Engineering (ELECO), Bursa, Turkiye

The active power that must be provided in accordance with frequency ancillary service regulations when battery energy storage systems participate in the frequency ancillary service is modelled in this study using a Model Predicted Controlled (MPC) 2-... Read More about Model Predictive Controlled Application of Power Management Algorithm for Battery Energy Storage System Providing Frequency Ancillary Service.

The Effect of Conducted Emissions of Grid-Tied Three-Phase Adjustable Drives (2023)
Journal Article
Genc, S., Muneeswaran, V., Thomas, D., Greedy, S., Gundogdu, B., Sarma, N., & Ozgonenel, O. (2023). The Effect of Conducted Emissions of Grid-Tied Three-Phase Adjustable Drives. Engineering Science and Technology, an International Journal, 46, Article 101505. https://doi.org/10.1016/j.jestch.2023.101505

Electromagnetic Interference (EMI) is generated and mitigated in power converters. EMI problems are related to high-speed power converters. This article focuses on conducted electromagnetic interference in adjustable-speed drive (ASD) systems. The el... Read More about The Effect of Conducted Emissions of Grid-Tied Three-Phase Adjustable Drives.

Implementation and performance evaluation of controller signal embedded sensorless speed estimation for wind turbine doubly fed induction generators (2023)
Journal Article
Wang, Y., Đukanović, S., Sarma, N., & Djurović, S. (2023). Implementation and performance evaluation of controller signal embedded sensorless speed estimation for wind turbine doubly fed induction generators. International Journal of Electrical Power & Energy Systems, 148, Article 108968. https://doi.org/10.1016/j.ijepes.2023.108968

This paper reports a novel sensorless speed estimation method for wind turbine doubly fed induction generators that is highly non-invasive and utilises the readily available generator drive controller signals. A generalised analytic analysis is first... Read More about Implementation and performance evaluation of controller signal embedded sensorless speed estimation for wind turbine doubly fed induction generators.

Short term load forecasting based on ARIMA and ANN approaches (2023)
Journal Article
Tarmanini, C., Sarma, N., Gezegin, C., & Ozgonenel, O. (2023). Short term load forecasting based on ARIMA and ANN approaches. Energy Reports, 9(Supplement 3), 550-557. https://doi.org/10.1016/j.egyr.2023.01.060

Forecasting electricity demand requires accurate and sustainable data acquisition systems which rely on smart grid systems. To predict the demand expected by the grid, many smart meters are required to collect sufficient data. However, the problem is... Read More about Short term load forecasting based on ARIMA and ANN approaches.

Early life failure modes and downtime analysis of onshore type-III wind turbines in Turkey (2022)
Journal Article
Sarma, N., Tuohy, P. M., Özgönenel, O., & Djurović, S. (2023). Early life failure modes and downtime analysis of onshore type-III wind turbines in Turkey. Electric Power Systems Research, 216, Article 108956. https://doi.org/10.1016/j.epsr.2022.108956

Operations and maintenance costs, and unplanned downtime accounts for a significant proportion of the total expenditure of windfarms. Therefore, reduction of these costs is essential, which requires a better understanding of the wind turbines' reliab... Read More about Early life failure modes and downtime analysis of onshore type-III wind turbines in Turkey.

Fiber Optic Fiber Bragg Grating Sensing for Monitoring and Testing of Electric Machinery: Current State of the Art and Outlook (2022)
Journal Article
Suryandi, A. A., Sarma, N., Mohammed, A., Peesapati, V., & Djurović, S. (2022). Fiber Optic Fiber Bragg Grating Sensing for Monitoring and Testing of Electric Machinery: Current State of the Art and Outlook. Machines, 10(11), Article 1103. https://doi.org/10.3390/machines10111103

This paper presents a review of the recent trends and the current state of the art in the application of fiber optic fiber Bragg gratings (FBG) sensing technology to condition the monitoring (CM) and testing of practical electric machinery and the as... Read More about Fiber Optic Fiber Bragg Grating Sensing for Monitoring and Testing of Electric Machinery: Current State of the Art and Outlook.

Investigation of Doubly-fed Induction Generator Controller Signals under Variable Speed Operating Conditions (2022)
Presentation / Conference Contribution
Sarma, N. (2022, September). Investigation of Doubly-fed Induction Generator Controller Signals under Variable Speed Operating Conditions. Presented at 2022 11th International Conference on Renewable Energy Research and Application (ICRERA), Istanbul, Turkey

The analysis of the controller signals of a doublyfed induction generator under variable speed operating conditions with and without generator faults is presented in the time domain in order to more accurately investigate the conditions presently exp... Read More about Investigation of Doubly-fed Induction Generator Controller Signals under Variable Speed Operating Conditions.

Modeling of a Typical Photovoltaic Module using Matlab/Simulink (2018)
Presentation / Conference Contribution
Sarma, N., Gegin, K., Simsir, M., & Tutkun, N. (2018, December). Modeling of a Typical Photovoltaic Module using Matlab/Simulink. Presented at 2018 2nd International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT), 2018 2nd International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT)

Comparison of Typical PV Module Performances Based on the Circuit Models (2018)
Presentation / Conference Contribution
Tutkun, N., Gegin, K., Sarma, N., & Salam, Z. (2018, December). Comparison of Typical PV Module Performances Based on the Circuit Models. Presented at 2018 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), Kota Kinabalu, Malaysia