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All Journal Mechatronics, Electrical Power, and Vehicular Technology International Journal of Management, Entrepreneurship, Social Science and Humanities (IJMESH)
Agus Purwadi
Institut Teknologi Bandung
Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Law, Crime, Criminology & Criminal Justice Social Sciences

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Designing optimal speed control with observer using integrated battery-electric vehicle (IBEV) model for energy efficiency Rina Ristiana; Arief Syaichu Rohman; Estiko Rijanto; Agus Purwadi; Egi Hidayat; Carmadi Machbub
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 9, No 2 (2018)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2018.v9.89-100

Abstract

This paper develops an optimal speed control using a linear quadratic integral (LQI) control standard with/without an observer in the system based on an integrated battery-electric vehicle (IBEV) model. The IBEV model includes the dynamics of the electric motor, longitudinal vehicle, inverter, and battery. The IBEV model has one state variable of indirectly measured and unobservable, but the system is detectable. The objectives of this study were: (a) to create a speed control that gets the exact solution for a system with one indirect measurement and unobservable state variable; and (b) to create a speed control that has the potential to make a more efficient energy system. A full state feedback LQI controller without an observer is used as a benchmark. Two output feedback LQI controllers are designed; including one controller uses an order-4 observer and the other uses an order-5 observer. The order-4 observer does not include the battery state of charge as an observer state whereas the order-5 observer is designed by making all the state variable as the observer state and using the battery state of charge as an additional system output. An electric passenger minibus for public transport with 1500 kg weight was used as the vehicle model. Simulations were performed when the vehicle moves in a flat surface with the increased speed from stationary to 60 km/h and moves according to standard NEDC driving profile. The simulation results showed that both the output feedback LQI controllers provided similar speed performance as compared to the full state feedback LQI controller. However, the output feedback LQI controller with the order-5 observer consumed less energy than with the order-4 observer, which is about 10% for NEDC driving profile and 12% for a flat surface. It can be concluded that the LQI controller with order-5 observer gives better energy efficiency than the LQI controller with order-4 observer
Net Zero Strategies in State Owned Energy Firms Alpha Nur Setyawan Pudjono; Dermawan Wibisono; Dwi Rian Sulaeman; Zuhwan Asbah; Madju Yuni Ros Bangun; Agus Purwadi; Didi Kurniadi Halim; Aghnia Nadhira Aliya Putri; Fadrian Dwiki Maulanda; Veren Sonia; Reza Setiadi Shihran; Laksamana Naufal Hibban; Zakie Anugia; Rohmat Priyanto
International Journal of Management, Entrepreneurship, Social Science and Humanities Vol. 8 No. 2 (2025): January - June Volume
Publisher : Research Synergy Foundation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31098/ijmesh.v8i2.2688

Abstract

This study investigated renewable energy strategies in Malaysia, Denmark, and Japan to derive actionable insights for Indonesia’s energy transition. The objective was to explore effective approaches for achieving net-zero emissions in state-owned energy enterprises within developing countries. A comparative analysis methodology was employed, incorporating benchmarking interviews with policymakers, industry experts, and regulators from the three countries, as well as the review of official energy strategy documents. Malaysia emphasized diversifying its energy mix through supportive policies and advancements in solar, hydro, and biomass technologies. Denmark achieved remarkable success through a liberalized energy market and robust regulatory support, particularly for wind power. Japan, shaped by its post-Fukushima context, focused on energy independence via investments in solar, wind, and geothermal technologies. The findings revealed that Indonesia could benefit from adopting a diversified energy portfolio, establishing stable policy frameworks, increasing investments in research and development, modernizing its power grid, and engaging local communities. This study concluded that aligning Indonesia’s energy policies with technological capabilities and regulatory environments is essential to achieving a sustainable energy transition and meeting net-zero targets.
Co-Authors Aghnia Nadhira Aliya Putri Alpha Nur Setyawan Pudjono Arief Syaichu Rohman Carmadi Machbub Dermawan Wibisono Didi Kurniadi Halim Dwi Rian Sulaeman Egi Hidayat Estiko Rijanto Fadrian Dwiki Maulanda Laksamana Naufal Hibban Madju Yuni Ros Bangun Reza Setiadi Shihran Rina Ristiana Rohmat Priyanto Veren Sonia Zakie Anugia Zuhwan Asbah