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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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Center of Pressure Control for Balancing Humanoid Dance Robot Using Load Cell Sensor, Kalman Filter and PID Controller Cisi Fitri Wulandari; Abdul Fadlil
Control Systems and Optimization Letters Vol 1, No 2 (2023)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v1i2.22

Abstract

Balance control on the Lanage Jagad humanoid dance robot is one of the means to create flexible dance movements in the robot movement system to make it more stable and can reduce the frequency of the robot falling or being unable to maintain balance when performing the dance. For the position of the robot, it can use a weight sensor or load cell sensor, the sensor measures the resistance value that can control the weight of 4 weight points on each robot leg which will later be converted into a pressure value at each point, in the study. This test was carried out with the same control behavior using an inertial sensor MPU6050. The balance on the robot uses a balance based on a load cell, which is a situation where the position of the robot in coordinates approaches the center of balance or CoP (Center of Pressure) at coordinates (0,0) or if using MPU6050 it is in a far error value condition so that it can balance the conditions so as not to falls close to the value of the robot state based on ZMP (Zero Moment Point) and CoG (Central of Gravity) as the MPU6050 sensor placement. In this study, for the balance control system using the Arduino MEGA 2560 PRO Board as a complement to the OpenCM 9.04 microcontroller, using 8 load cell sensors to determine the balance point which has been made predictions of pressure from the load cell using a kalman filter also PID control to handle the servo motor. The results from the center point of the robot's pressure have succeeded in determining the center of balance or CoP based on the X coordinates of 0 and the Y coordinates of 0 and the quadrant direction based on the center of gravity, so that the results of the balance system in standing and dancing conditions are based on the center of balance using a load cell, the success rate when standing by 87.5% and balance when dancing by 89%.
A Review of Energy Storage Systems (ESS) for Integrating Renewable Energies in Microgrids Abdul Karim Patwary; Md Abu Sayem; Md Alom Hossain; Md. Abdul Halim
Control Systems and Optimization Letters Vol 2, No 1 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i1.68

Abstract

This review's primary goal is to include an energy storage system for incorporating renewable energy into microgrids. Both the integration of renewable energy sources with microgrids and the use of inappropriate storage systems are detrimental to renewable energy. Energy Storage Systems (ESS) are essential for facilitating the efficient integration of renewable energy sources in microgrids and resolving the intermittency and variable issues posed by these sources. Modern energy storage techniques and their use in microgrids are thoroughly reviewed in this paper. Renewable energy sources like solar panels, wind turbines, and occasionally biomass or small-scale hydropower are being integrated into microgrid designs more and more. Resilient and sustainable energy supplies are enhanced by this integration. Continuous advancements are made in the dynamic field of microgrid integration with renewable energy sources. However, there are still a lot of difficulties with integration, such as intermittent and variable performance, financial and technological obstacles, policy and regulatory problems, and grid connection difficulties. The review investigates how ESS can enhance grid stability, enhance energy management, and maximize the use of renewable energy sources. Various challenges of Renewable Energy Storage System have also been reviewed in this paper.   Additionally, it looks at the opportunities and difficulties of adopting ESS in microgrids, including the requirement for effective deployment and control strategies. To show how effectively ESS enables the integration of renewable energies in microgrids, case studies and practical applications are discussed. The analysis concludes with suggestions for future research initiatives, highlighting the significance of developing ESS technologies to create robust and sustainable energy systems. This paper could end with suggestions for future research directions in the field of energy storage systems for microgrids, as well as recommendations for practitioners, policymakers, and researchers.
Irrigation Sluice Control System Using Algorithm Based DC Motor PID And Omron PLC Duwi Prastiyo; Wahyu Sapto Aji
Control Systems and Optimization Letters Vol 1, No 1 (2023)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v1i1.5

Abstract

Automatic control system or control system (control system) is a system that aims to control a process so that the output produced can be controlled so that no errors occur. Automatic control in a system is very necessary because not all can be controlled by humans with precision, so it is necessary to have a control system that can monitor at the same time as the desired command execution. This research is to design a prototype irrigation sluice control system using a potentiometer, PID algorithm, PLC OMRON CP1E NA20DR-A and DC PG 28 motor as actuator. This research was conducted at the system design stage, both in hardware design and software design. The results of the tests that have been done show that the PID works well, this can be known from the state of the Output Word value "0" if the value "SP = PV" while the Output Word value will be greater than zero if "SP PV". Data collection is carried out with a water level condition of 12 cm then to raise the water condition, then add water slowly, from the data obtained that shows the increase in water level at the potentiometer voltage is 0.116 V / cm.
A Comprehensive Review of Techno-Economic Perspective of AC/DC Hybrid Microgrid Md Rakibur Zaman; Sudip Sarker; Md Abdul Halim; Salah Ibrahim; Abrarul Haque
Control Systems and Optimization Letters Vol 2, No 1 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i1.72

Abstract

The main objective of this research is to review the techno-economic aspects of AC/DC hybrid microgrid. This review has been done by scrutinizing the essential constituents of both AC and DC microgrids, accentuating their corresponding benefits and constraints. The benefits and reasons for integrating AC and DC technology in a hybrid microgrid setting are then covered. From a technological standpoint, the study addresses Renewable Energy Integration, Power Electronic Converters, Energy Storage Systems, Control and Energy Management system and Grid Synchronization. This can lead to a reduction in the overall operational expenses of the microgrid, making it more economically viable in the long run. Initial Investment, Life cycle costs, Payback period, Operational and Maintenance Costs, Regulatory Incentives and Policies and energy savings cost regarding the financial aspect has been reviewed in this paper. complexity to design, operation, and control is a big challenge of AC/DC Hybrid Microgrid. Challenges in the smooth integration of AC and DC components have also been reviewed. The study also investigates how different regulations, laws, and incentives affect the financial sustainability of AC/DC hybrid microgrid projects. Real-world examples and case studies are included to offer useful insights into the effectiveness and viability of current AC/DC hybrid microgrid systems from an economic standpoint. In addition, the review points out areas of current research deficiency and makes recommendations for future directions in this area of study. Researchers, practitioners, and policymakers interested in the design and implementation of resilient and sustainable energy systems will find great value in the thorough review that presents the current level of knowledge on the techno-economic aspects of AC/DC hybrid microgrids. The review's conclusions can be used by legislators to create well-informed rules and policies that encourage the installation of AC/DC hybrid microgrids and their integration with the current energy infrastructure. When designing, developing, and implementing AC/DC hybrid microgrid systems, researchers and technology developers can recognize important obstacles as well as opportunities.
Fully Homomorphic Encryption Scheme Over Integers Based on DGHV Scheme Zainab H. Mahmood; Mahmood K. Ibrahem
Control Systems and Optimization Letters Vol 1, No 3 (2023)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v1i3.45

Abstract

Homomorphic encryption was introduced to enable untrusted parties to apply computation over encrypted data, without decrypting the message. It makes a promising future to solve security challenges with Cloud Computing.  Still, because of complex problems, HE is not yet usable in real-world applications. However homomorphic encryption suffers from many complex issues like large-time computation, which is difficult to implement, and huge ciphertext size. In this paper, we take into account many vital homomorphic encryption schemes, all of them is depend on computing over integers, by converting the message to a binary format, then the ciphertext is calculated to every single bit of plaintext. So, we suggested another symmetric Fully Homomorphic encryption that depends on an integer number without converting it to binary format, it encrypts the message using a prime secret key. The proposed system is considered a great improvement to the DGHV system. Where it reduced the ciphertext size and the execution time significantly. The present proposed system shows an improvement of DGHV where it is faster about 23.8 times from DGHV, and we gain one ciphertext for the whole message instead of ciphertext for every bit of the message. The scheme's hardness depends on the greatest common divisor (GCD) problem. We present a detailed explanation of these schemes showing their efficient techniques and compare it with the proposed algorithm in terms of ciphertext size of algorithm, and execution time and analyze their security them finally draw several conclusions.
IMU Sensor Based Omnidirectional Robot Localization and Rotary Encoder Setyo Budi Marwanto; Riky Dwi Puriyanto
Control Systems and Optimization Letters Vol 1, No 2 (2023)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v1i2.39

Abstract

Localization is a technique to determine the position of the robot in an environment. Robot positioning is a basic problem when designing a mobile robot. If the robot does not know its position, then the next robot action will be difficult to determine. To be able to determine the position of the omnidirectional robot requires good speed control on the DC motor. In omnidirectional robots, positioning is through the use of a rotary encoder sensor to count the movement of the omni robot at X and Y coordinates and the IMU sensor to maintain the direction of the robot facing. PID control is also applied to control the rotational speed of each DC motor on the robot wheel. Odometry is the method used in this study. The odometry system aims to estimate the position relative to the initial position of the omni robot to estimate the change in position from time to time. The final result of this research is the application of the odometry method based on a rotary encoder and IMU sensor can produce an effective and stable robot motion and can move in all directions (holonomic) by maintaining the robot's facing direction. The results of the test form simple motions such as forward, backward, right side, and left side motion, as well as forming a box trajectory that has a position error that is not large and quite accurate. The average error value at coordinate X is 1.44 cm and at coordinate Y is 1.67 cm.
Prospects and Challenges of Embedded Systems for Semiconductor Devices in Industry - A Case Study Abdulla Al Tareq; Md. Taufiq Hossain; Zohar Al Dodaev; Abrarul Haque
Control Systems and Optimization Letters Vol 2, No 1 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i1.97

Abstract

The main objective of this paper is to review the current challenges and prospects of semiconductor devices in Industry. Modern semiconductor devices are not the same without embedded systems, which allow for improved functionality, connectivity, and efficiency in a wide range of industrial applications. This work examines the opportunities and difficulties of integrating embedded systems into semiconductor devices in an industrial setting, concentrating on a thorough case study. This paper investigates the possible advantages of embedded systems, including enhanced performance, lower costs, and more dependability, through a thorough analysis. It also looks at the difficulties that come with its implementation, such as complex designs, interoperability problems, and security risks. The case study offers useful insights into the implementation of embedded systems in semiconductor devices in the real world by emphasizing effective tactics, lessons discovered, and potential future directions. Through the integration of theoretical frameworks and empirical data, this study advances our comprehension of the challenges and opportunities associated with utilizing embedded systems for semiconductor devices in industrial environments. Various functionalities can be included into semiconductor devices thanks to embedded systems, which increases their market potential beyond conventional applications. This creates chances for revenue development and innovation. By improving the adoption and usage of embedded systems, industry practitioners, researchers, and policymakers may boost innovation and competitiveness in the semiconductor sector.
Power System Stabilizer Design using Genetic Algorithms and Particle Swarm Optimization Ghouraf Djamel Eddine; Naceri Abdellatif; Sayeh Abdelkader
Control Systems and Optimization Letters Vol 1, No 1 (2023)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v1i1.15

Abstract

in this paper, Meta-heuristic techniques using genetic algorithms GA and particle swarm optimization PSO to tuning optimal design of power system stabilizer PSS proposed. This latter have been used for many years to add damping to electromechanical oscillations of power system, Based on this idea we have proposed multiobjective function composed with tow function, first maximize stability margin by increasing the damping factors while minimizing the real parts of the eigenvalues. Simulation results to comparative study between genetic algorithms and particle swarm optimization obtained by our realized graphical user interface (GUI) proved the efficiency of PSS optimized by genetic algorithms in comparison with Particle Swarm Optimization, showing stable   system   responses   almost   insensitive   to   large parameter variations and under different operating regime (under-excited, nominal and over excited regime).
Integrating Micro and Smart Grid-Based Renewable Energy Sources with the National Grid in Bangladesh - A Case Study Md Rakibur Zaman; Md Abdul Halim; Md. Yakub Ali Khan; Salah Ibrahim; Abrarul Haque
Control Systems and Optimization Letters Vol 2, No 1 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i1.76

Abstract

The worldwide quest for sustainable energy solutions has led to a thorough investigation of the integration of renewable energy sources based on micro and smart grids into national electricity systems. This case study focuses on Bangladesh's particular situation, as a nation attempting to find workable solutions to its energy problems. The study explores how cutting-edge smart grid technology and decentralized energy systems, such as microgrids, can be integrated to improve the country's energy environment. The report commences by evaluating the current condition of Bangladesh's national grid, outlining the obstacles that still need to be overcome, and stressing the importance of having a variety of reliable energy sources. After that, the emphasis switches to microgrids, where their potential to support energy autonomy, harvest renewable energy locally, and lessen load on the centralized grid is examined.  A thorough analysis of the technical, financial, and legal factors is carried out, considering how well micro and smart grid technologies work with the country's grid infrastructure. A case study that highlights a particular implementation in a chosen area of Bangladesh provides useful information. To assess the effectiveness and difficulties of the integration process, key metrics such the penetration of renewable energy, grid stability, and economic viability are described. In addition to providing resilience against power outages, increasing energy efficiency, and promoting a sustainable energy ecosystem, the results highlight the potential advantages of a synergistic strategy in which micro and smart networks supplement the national grid. Regulatory framework, technology standardization, and community participation challenges are all noted, and these call for the implementation of policy interventions and strategic planning. This case study provides insightful information about how Bangladesh's national system integrates renewable energy sources based on micro and smart grids. In the context of a developing nation's energy transition, it advocates for a comprehensive approach that considers technological breakthroughs, economic viability, and regulatory frameworks to unlock the full potential of decentralized and smart grid solutions.
A Comprehensive Review on Techniques and Challenges of Energy Harvesting from Distributed Renewable Energy Sources for Wireless Sensor Networks Md. Naeem Hussain; Md Abdul Halim; Md. Yakub Ali Khan; Salah Ibrahim; Abrarul Haque
Control Systems and Optimization Letters Vol 2, No 1 (2024)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v2i1.60

Abstract

Wireless Sensor Networks (WSNs) have drawn a lot of interest from a variety of industries, such as industrial automation, healthcare, and environmental monitoring. Typically, these networks are made up of sensor nodes that run on batteries and depend on energy-efficient operation to extend their lifetime. Renewable and sustainable energies are suitable for wireless sensor networks. Energy harvesting from dispersed renewable sources, such as solar, wind, biomass, and vibration, has emerged as a possible approach to alleviate the limits associated with limited battery life. The state-of-the-art methods and difficulties associated with energy harvesting in wireless sensor networks (WSNs) from a variety of distributed renewable sources, such as solar, wind, vibration, and temperature gradients, are thoroughly reviewed in this study. The paper discusses the many techniques for extracting and converting energy from these sources, highlighting the benefits and drawbacks of each.  This paper explores several energy harvesting techniques and challenges. The study also discusses the difficulties in integrating energy harvesting, including adaptive power management, energy forecast, intermittent energy supply, and integration issues. The assessment also highlights research gaps and potential future initiatives in the field of energy harvesting from renewable sources. Researchers, technologists, and policymakers working in the fields of renewable energy and wireless sensor networks would find this thorough assessment to be quite insightful. It illuminates how energy harvesting technologies may improve sensor network autonomy and sustainability, leading to breakthroughs in environmental monitoring and other vital applications. The development of sustainable, independent, and effective sensing systems is greatly aided by the investigation of methods and obstacles in energy harvesting for wireless sensor networks. In addition to addressing current issues, this research opens doors for innovation, fostering a more sustainable approach to data collection and monitoring, and having a positive effect on a number of industries.

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