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Energy Efficiency and Performance of PMSM Drives in Electric Vehicles under Variable Loads I Ketut Wiryajati; I Made Mara; I Chatur Adhi Wirya Aryadi; Ida Ayu Sri Adnyani
Journal of Electrical Engineering and Computer (JEECOM) Vol 8, No 2 (2026)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/jeecom.v8i2.16859

Abstract

This study evaluates the performance and energy efficiency of an electric vehicle powertrain based on a Permanent Magnet Synchronous Motor under varying speed and load conditions using a real-time monitoring system. Experiments were conducted at speeds of 10–40 km/h and loads of 50–200 kg, measuring voltage, current, power, efficiency, and specific energy consumption. Results show that efficiency increases significantly from approximately 66% at low speeds to over 90% at higher speeds, while specific energy consumption decreases from 118 Wh/km to around 60 Wh/km, indicating improved energy utilization. Load variation has a relatively minor effect on efficiency but contributes to higher current and power demand. Efficiency gradient analysis reveals a reduced rate of improvement at higher speeds, suggesting saturation effects and the presence of an optimal operating region. Measurement validation confirms low error levels (<5%), ensuring data reliability. Overall, the system demonstrates optimal performance at medium to high speeds with significantly enhanced energy efficiency.
Co-Authors , I Made Ginarsa AA Alit Triadi Abdul Natsir Adha, Farhan Adi W, IGAK Catur Agung Budi Muljono Agung Budi Muljono Agung Herdiansyah Akbar Tawaqqal Akbar, Panji Alfandi, Ahmad Nova Aljibran, Aljibran Amrullah, Topaarana Bagus Widhi Dharma S CATUR ADHI , I GUSTI AGUNG KETUT Cipta Ramadhani Eduarsa, Made Octa Fitrirayani, Gadis Ariva Ginarsa I Made Hadianto, Virgian Puji Haidar Hamdi Hardinata, Dhika Aufa Harjian, M Rivaldy Harjian, Muhammad Rivaldi Hati, Mutiara Indah Permata Humairoh Saidah I Chatur Adhi Wirya Aryadi I G.A.K. Chatur I Gede Bawa Susana I Ketut Perdana I Ketut Perdana Putra I Ketut Wiryajati I Made Ari Nrartha I Made Ari Nrartha I Made Budi Suksmadana I Made Budi Suksmadana I Made Ginarsa I Made Ginarsa I Made Ginarsa I Made Mara I Nyoman Wahyu Satiawan I Nyoman Wahyu Satiawan I Wayan Joniarta I Wayan, Joniarta I.B. Fery Citarsa I.M. Mara Ida Ayu Sri, Adnyani Ida Bagus A. Swamardika Ida Bagus Fery Citarsa Ida Bagus Fery Citarsa IDK Okariawan, IDK Jurnal Pepadu Karni, Wais Al Made Budi Suksmadana Made Sutha Yadnya Muh Rhama Insan Kamil Muh. Sultanul Mahdi Muhammad Rivaldi Harjian Nababan, Sabar Natrsir, Abdul Natsir, Abdul Ni Ketut Dewi Irwanti Ni Made Seniari Ni Made Seniari Ni Made Seniari Ni Made Seniari Ni Made Seniari Nrartha I Made Paniran Paniran Perdana Putra, I Ketut Perdana, I Ketut Putra, I Ketut Perdana R. Reski Eka Putra Rosmaliati, Rosmaliati Sabar Nababan Sabar Nababan Nababan satiawan, nyoman wahyu Seniari, Ni Made Sri Maryati Sudi Mariyanto Al Sasongko Suksmadana, I Made Budi Sultan Sultan Sultan Sultan Sultan Sultan Supriatna Supriono Supriono Supriono Supriono Supriono Supriyatna Supriyatna Supriyatna Supriyatna Supryatna Tawaqqal, Akbar Teti Zubaidah Widana, Arya Kusuma