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Alfian Ma'arif
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Control Systems and Optimization Letters
Published by Peneliti Teknologi Teknik Indonesia
ISSN : -     EISSN : 29856116     DOI : 10.59247/csol
Core Subject : Science, Engineering,
Aerospace Engineering Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering
Control Systems and Optimization Letters is an open-access journal offering authors the opportunity to publish in all fundamental and interdisciplinary areas of control and optimization, rapidly enabling a safe and sustainable interconnected human society. Control Systems and Optimization Letters accept scientifically sound and technically correct papers and provide valuable new knowledge to the mathematics and engineering communities. Theoretical work, experimental work, or case studies are all welcome. The journal also publishes survey papers. However, survey papers will be considered only with prior approval from the editor-in-chief and should provide additional insights into the topic surveyed rather than a mere compilation of known results. Topics on well-studied modern control and optimization methods, such as linear quadratic regulators, are within the scope of the journal. The Control Systems and Optimization Letters focus on control system development and solving problems using optimization algorithms to reach 17 Sustainable Development Goals (SDGs). The scope is linear control, nonlinear control, optimal control, adaptive control, robust control, geometry control, and intelligent control.
Arjuna Subject : Teknik (semua kategori) - Teknik Kontrol dan Sistem
Articles 118 Documents
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A Comprehensive Review of Hydraulic Systems in Aerospace and Construction Engineering Kumar, Sree Biddut; Hossem, Md Saim; Sayed, Abu
Control Systems and Optimization Letters Vol 2, No 3 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i3.127

Abstract

This paper provides a thorough examination of hydraulic systems used in construction and aerospace, emphasizing new developments and their vital functions in contemporary engineering. In the aircraft industry, where dependability at high altitudes is critical, hydraulic systems are essential for precise control over landing gear, flying surfaces, and brake systems. Fly-by-wire technology and advancements in lightweight materials, such carbon fiber-reinforced plastics, have greatly improved system efficiency and decreased mechanical complexity, satisfying the exacting aerospace standards for accuracy, weight efficiency, and dependability. Hydraulic systems provide the force required for heavy lifting and earthmoving operations in a variety of settings, powering vital pieces of equipment such as excavators, cranes, and loaders in the construction industry. Performance, fuel economy, and safety have all increased as a result of recent developments, such as digital automation and energy-efficient designs. For instance, more automation and accuracy are now possible with electro-hydraulic controls, which lowers human effort and increases productivity on construction sites. Each sector's unique problems are also covered in this analysis, such as fluid dependability in harsh environments, system complexity, thermal management, and environmental issues including energy efficiency and fluid leakage. Future trends are examined in the assessment's conclusion, with a focus on sustainable practices such energy-efficient designs and biodegradable hydraulic fluids. By focusing on these fields and developments, this research shows how hydraulic systems continue to propel industrial development, adjusting to intricate needs and advancing engineering applications' technical capabilities.
Investigations on Grid-Connected DFIWGs Development and Performance Analysis with the Support of Crowbar and STATCOM Mahmoud, Mohamed Metwally; Benlaloui, Idriss; Benbouya, Basma; Ibrahim, Nagwa F.
Control Systems and Optimization Letters Vol 2, No 2 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i2.109

Abstract

These days, one of the most used layouts in the wind power industry is a variable-speed doubly-fed induction wind generator (DFIWG). To provide real and reactive power (PQ) control during grid failures, this research examines the DFIWG. The system's transient behavior is examined under normal and abnormal conditions. Through rotor side converter (RSC) and grid side converter (GSC) control, Q assistance for the grid, and power converter stress reduction, the suggested control approach achieves system stability while enabling DFIWG to operate smoothly during grid failures. By suppressing rotor and stator overcurrent, DC link voltage (VDC) overshoot, and PQ oscillations, as well as supporting the grid voltage (GV) under both balanced and unbalanced grid fault scenarios with distinct voltage dips, the suggested technique preserves the system characteristics during grid faults. MATLAB/SIMULINK 2017b is used for time-domain computer simulations. STATCOM and crowbar, two suggested systems, are contrasted. This work proves the effectiveness of the suggested approaches in augmenting the system's fault ride-through (FRT) capacity.
Cascade Control for Trajectory-Tracking Mobile Robots Based on Synergetic Control Theory and Lyapunov Functions Chiem, Nguyen Xuan
Control Systems and Optimization Letters Vol 3, No 1 (2025)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v3i1.169

Abstract

This paper aims to synthesize a synergetic control law using a cascade approach for trajectory-tracking robots. A nonlinear model was established for a differential two-wheeled mobile robot. The robot’s operation can either stabilize along a desired trajectory or deviate due to model uncertainty and external disturbances. The cascade approach is utilized to reduce system complexity while maintaining the robustness of the control law. The kinematic control law in the outer loop is designed using Lyapunov functions, while the dynamic control law is derived using synergetic control theory. This law ensures system control quality under model uncertainties and external disturbances. Finally, simulation results demonstrate that the proposed controller provides robust stability for the mobile robot, along with excellent disturbance rejection and robustness against model uncertainties.
A Comprehensive Study of the Importance of Materials for Renewable Energy Generation Pranto, Jubaer Akon; Kadir, Md Moin; Khan, Md. Yakub Ali
Control Systems and Optimization Letters Vol 2, No 3 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i3.119

Abstract

The main objective of this review is to show the importance of materials in renewable energy generation. Making the switch to renewable energy sources is essential for promoting sustainable growth and halting global warming. This extensive study looks at the critical role that materials play in the production of renewable energy, emphasizing how important they are for improving efficiency, cutting costs, and guaranteeing the longevity of energy systems. Key components of solar, wind, hydro, and biomass energy technologies are the subject of this study. Examples of these components are silicon for solar cells, rare earth metals for wind turbines, and organic matter for biomass conversion. It also examines the effects of cutting-edge energy storage technologies, such as supercapacitors and lithium-ion batteries, on the stability and dependability of renewable energy systems. Materials play a key role in increasing the performance and lowering the cost of renewable energy generation technologies, including fuel cells, wind turbines, solar panels, and batteries. Due to its high energy conversion efficiency and widespread availability, silicon continues to be the most widely used material in photovoltaic (PV) solar panels. However, novel materials such as perovskites offer promise for obtaining higher efficiencies at reduced manufacturing costs. The difficulties in extracting, processing, and recycling materials are discussed, highlighting the necessity of sustainable methods and creative approaches in the field of material science. Many high-performance materials are costly or challenging to manufacture on a large scale, such as advanced composites and some rare earth elements. A big problem is cutting prices and locating more plentiful alternatives. The study highlights the vital need for ongoing research and development in materials to optimize renewable energy technologies and support the worldwide move towards a low-carbon future by examining existing advancements and future potential.
A Comprehensive Study of Effects of Renewable Energy Based Electric Vehicles on Environment Hossain, Md. Taufiq; Khan, Saidul Islam; Dodaev, Zohar Al
Control Systems and Optimization Letters Vol 2, No 2 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i2.100

Abstract

This extensive study explores the environmental impact of electric vehicles (EVs) powered by renewable energy sources. This review also looks at how they might lessen air pollution, cut carbon emissions, and support environmentally friendly transportation networks. Renewable energy-powered electric cars (EVs) have become a viable substitute for conventional internal combustion engine automobiles as the globe moves toward greener energy sources and looks for ways to tackle climate change. This essay examines how adopting EVs would affect the environment, with particular attention to resource use, air quality gains, and greenhouse gas emissions. It examines how EVs' life cycle emissions compare to those of conventional cars, taking into account things like how cars are made, how electricity is produced, and how end-of-life disposal is handled. The study also looks at how renewable energy sources like solar, wind, and hydropower can be integrated into the electrical grid to power electric vehicles (EVs), emphasizing the mutually beneficial effects on the energy and transportation sectors. The study also addresses the possible opportunities and problems that come with the widespread use of EVs powered by renewable energy, including infrastructural needs, legislative incentives, and customer behavior. This study aims to provide important insights into the environmental implications of EVs powered by renewable energy, guiding decision-making processes, and shaping future strategies for sustainable transportation and energy transitions through a thorough analysis of the body of existing literature, empirical studies, and modeling approaches.
A Review of Analysis and Existing Simulation Model of Three Phase Permanent Magnet Synchronous Motor Drive (PMSM) Ali Khan, Md. Yakub
Control Systems and Optimization Letters Vol 2, No 3 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i3.151

Abstract

The main objective of this research is to review the existing simulation model of three phase Permanent Magnet Synchronous Motor Drive (PMSM). This review enhances the understanding of dynamic and steady-state performance of PMSM system. Because of their exceptional power density, precise control features, and great efficiency, permanent magnet synchronous motors, or PMSMs, have drawn a lot of interest. A thorough examination of the modeling, simulation, and control approaches for three-phase PMSM drives is given in this paper. To comprehend motor dynamics, the research looks at a number of mathematical models of PMSM, such as analogous circuit models and d-q axis representation. Software tools such as MATLAB/Simulink are used in simulation techniques to test these models and forecast system performance under various operating situations. In addition, the impact of control systems like Direct Torque Control (DTC) and Field-Oriented Control (FOC) on performance optimization is explored. The research gaps that still need to be filled are highlighted in the paper's conclusion, along with possible future study topics. The review emphasizes how well-advanced control techniques like Direct Torque Control (DTC) and Field-Oriented Control (FOC) can improve PMSM performance. It also stresses how crucial precise d-q axis modeling and simulation tools are to reducing torque ripple, increasing efficiency, and guaranteeing reliable operation in a variety of applications.
Ensuring Safety in Human-Robot Cooperation: Key Issues and Future Challenges Sharkawy, Abdel-Nasser; Mahmoud, Khaled H.; Abdel-Jaber, Gamal T.
Control Systems and Optimization Letters Vol 2, No 3 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i3.154

Abstract

Human-robot cooperation (HRC) is becoming increasingly essential in many different sectors such as industry, healthcare, agriculture, and education. This cooperation between robot and human has many advantages such as increasing and boosting productivity and efficiency, executing the task easily, effectively, and in a fast time, and minimizing the efforts and time. Therefore, ensuring safety issues during this cooperation are critical and must be considered to avoid or minimize any risk or danger whether for the robot, human, or environment. Risks may be such as accidents or system failures. In this paper, an overview of the safety issues of human-robot cooperation is discussed. The main key challenges in robotics safety are outlined and presented such as collision detection and avoidance, adapting to unpredictable human behaviors, and implementing effective risk mitigation strategies. The difference between industrial robots and cobots is illustrated. Their features and safety issues are also provided. The problem of collision detection or avoidance between the robot and environment is defined and discussed in detail. The result of this paper can be a guideline or framework to future researchers during the design and the development of their safety methods in human-robot cooperation tasks. In addition, it shapes future research directions in safety measures.
A Comprehensive Review of Intelligent Home Automation Systems Using Embedded Devices and IoT Tareq, Abdulla Al; Mostofa, Md Riad; Rana, Md Juel; Rahman, Md Sadiqur
Control Systems and Optimization Letters Vol 2, No 2 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i2.110

Abstract

The integration of embedded devices and Internet of Things (IoT) technologies is the main subject of this thorough assessment, which examines the development and status of intelligent home automation systems. Intelligent home automation systems provide remote control and automation of household appliances and systems, with the goal of improving the comfort, safety, and energy efficiency of residential surroundings. The different designs and parts of home automation systems such as sensors, actuators, controllers, communication protocols, and user interfaces are examined in this overview. It draws attention to the function of embedded devices, which act as the essential building blocks of these systems by supplying the required connectivity and processing power. The evaluation also covers the use of IoT technologies, which enable smooth device interoperability and communication, opening the door to more advanced automation and control capabilities. Important developments in artificial intelligence, cloud computing, and machine learning that enhance these systems' intelligence and flexibility are also examined. The paper also discusses issues including security, privacy, standards, and user adoption and offers possible fixes as well as future research possibilities. Creating AI algorithms that will help home automation systems comprehend and react to user context and preferences more effectively which can be done soon. We hope that this review will give readers a thorough grasp of intelligent home automation systems and provide insights into their design.
Integration of Renewable Energy, Microgrids, and EV Charging Infrastructure: Challenges and Solutions Prianka, Yingking Mitra; Sharma, Anik; Biswas, Chanchal
Control Systems and Optimization Letters Vol 2, No 3 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i3.142

Abstract

As global efforts toward sustainable energy transition and electric vehicle (EV) adoption accelerate, the seamless integration of renewable energy sources (RES), microgrids, and EV charging infrastructure is becoming increasingly critical. This review examines recent advancements in the integration of solar and wind power with microgrids and EV charging infrastructure, focusing on energy management techniques, grid stability solutions, and the development of charging infrastructure. The study emphasizes the difficulties relating to energy management techniques, grid stability, intermittency and variability of renewable energy, and the development of charging infrastructure. Microgrids are critically examined for their ability to enhance energy security and resilience by integrating distributed energy resources (DERs) and optimizing power generation and usage. The contribution of microgrids to improving energy security and resilience is thoroughly examined, along with how they allow distributed energy resources (DERs) to maximize power generation and consumption. Additionally, this review assesses how energy storage systems (ESS) and bidirectional vehicle-to-grid (V2G) technology affect peak load reduction and energy balance. The integration of these systems is made easier by a number of smart grid technologies, power electronics solutions, and communication protocols that are covered. The assessment also discusses the standards, policy frameworks, and future lines of inquiry that will be needed to hasten the establishment of a reliable and scalable network of electric vehicle charging stations coupled with microgrids and renewable energy sources. The results of this research offer valuable perspectives for creating sustainable energy strategies that facilitate the swift expansion of electric vehicle adoption, all the while reducing ecological footprints and augmenting grid stability.
Bioinformatics Analysis of Toxicity and Functional Properties of Plant-Derived Bioactive Proteins Khatun, Most. Sharmin; Jahan, Afrin
Control Systems and Optimization Letters Vol 2, No 2 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i2.112

Abstract

The main objective of this review is to discuss the biological activities of plants and their potential for therapeutic use, as well as to highlight the many kinds of bioactive proteins. Plant-derived bioactive proteins are essential because of their many functional qualities and health advantages in a variety of domains, including nutrition, medicine, and agriculture. Plant-derived bioactive proteins have attracted a lot of attention because of their potential as medicines and health advantages. To improve comprehension and application, this study uses bioinformatic tools to present a thorough analysis of the toxicity and functional properties of these proteins. We examine the variety of bioactive proteins originating from plants, emphasizing their functions in anti-inflammatory, anti-cancer, and antibacterial properties. We evaluate these proteins' structural characteristics, binding affinities, and processes of interaction with target molecules using sophisticated bioinformatics technologies. A particular focus is on assessing possible toxicity, using in silico predictive algorithms to detect side effects and guarantee safety in medicinal applications. We also go over how to anticipate the functional characteristics of novel bioactive proteins by integrating proteomic and genomic data. There are many tools such as BLAST, Clustal Omega, Inter Pro Scan for the analysis of bioinformatic data have been reviewed here. This study emphasizes how important bioinformatics is to understand the safety and therapeutic potential of bioactive proteins generated from plants, which opens the door to their optimal application in nutrition and medicine.

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