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Swe, Wunna
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Computer Science & IT Electrical & Electronics Engineering Engineering

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Optimal Sizing and Comparative Analysis of Renewable Energy Integration for the Existing Microgrid System in Kadan Island Htun, Khin Thandar; Swe, Wunna
The Indonesian Journal of Computer Science Vol. 13 No. 2 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i2.3885

Abstract

The rapid depletion of fossil fuels and the necessity for reduced carbon emissions have led to an increased focus on renewable energy resources. The existing microgrid system comprises solely a diesel generator and a small portion of hydropower. Currently, Kadan Island relies mainly on diesel generators to supply power, resulting in a significantly higher cost of energy in comparison to other areas. Furthermore, there is still not enough electricity available on the entire island of Kadan. However, research has shown that integrating renewable-based systems with storage technologies into existing systems can help mitigate these issues. Therefore, the main objective of this paper is to investigate the optimal size and operation of a hybrid renewable system on the Myanmar Islands. The optimization process will focus on minimizing the net present cost (NPC) and cost of energy (COE) of the selected location. Additionally, the island's network will be analyzed under normal operating conditions with different scenarios, and the best scenario for the existing microgrid on Kadan Island will be recommended.
Design Optimization Of PV And WTE Integration In Electricity Supply System For Mandalay Urban Area Oo, Hay Man; Swe, Wunna
The Indonesian Journal of Computer Science Vol. 13 No. 2 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i2.3895

Abstract

Hybrid energy systems, which combine two or more energy systems, arebecoming increasingly popular due to the rise in petroleum productprices, growing CO2 emission awareness, and advancements in renewableenergy technologies. These systems are being adopted to meet the energyand electricity demands of decentralized networks. In Myanmar, someareas still face significant challenges in accessing grid-based electricitysupply. In such cases, the hybrid renewable microgrid systems offer abetter alternative by reducing dependency on diesel fuel and meetingenergy demands in an environmentally friendly manner. To enhance thereliability of these hybrid systems, renewable sources can be integratedwith diesel generators and utility grid. This integration allows hybridsystems to compensate for the intermittent nature of renewable energysources and achieve higher overall energy efficiency. One of the mainadvantages of hybrid systems is their potential for energy autonomy, asthey are not reliant on a single energy source. This paper introduces anovel approach for designing a grid connected hybrid system thatincorporates photovoltaic, and biomass especially the municipal solidwaste. The Hybrid optimization model for electrical renewable (HOMER)is a powerful optimization model that simplifies the evaluation of off-gridand grid-connected power system designs for various applications. In thispaper, the grid connected hybrid renewable energy system is designedand analyze for Mandalay region.
State-of-Charge Evaluation for Real-Time Monitoring and Evaluation of Lithium-Ion Battery Performance Aye Aye Mon; Swe, Wunna
The Indonesian Journal of Computer Science Vol. 13 No. 2 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i2.3911

Abstract

Nowadays, lithium-ion batteries have been garnered significant attention as the primary energy source for energy storage devices within the renewable energy sector. Key concerns surrounding the utilization of lithium-ion batteries include ensuring satisfactory design lifespan and safe operation. Consequently, there's been a practical need for battery management. Responding to this demand, various battery state indicators have seen widespread implementation. Among the battery state indicators, accurate state-of-charge (SOC) estimation is an essential requirement for many situations where Li-Ion batteries (LiBs) are used. The effectiveness of a Battery Management System (BMS) safeguards the battery against deep discharging and over-charging to maximize its lifespan. This paper conducts state of charge (SOC) evaluation of a Li-ion battery module (12V, 13 Ah lithium titanate oxide (LTO) battery) for battery management systems (BMS) in energy storage systems (ESSs).
Economic Analysis of PV-Utility Grid Hybrid Electric Vehicle Charging Station in Mandalay City Soe Soe Than; Swe, Wunna
The Indonesian Journal of Computer Science Vol. 13 No. 2 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i2.3912

Abstract

Electric vehicles (EVs) are catching on everywhere worldwide. Building more clean energy infrastructure for EVs could help lessen greenhouse gas emissions and make city air cleaner. EVs charged with electricity from solar panels emit fewer pollutants compared to those charged with grid electricity. Therefore, combining solar power with EV charging stations could be a good way to promote sustainable development in the EV market. Despite rapid EV adoption in Mandalay, the charging infrastructure remains limited, mostly stations reliant on grid electricity. In this paper, the proposed system integrates photovoltaic technology with the existing utility grid infrastructure of EV charging station at the corner of 78th road & 101st road in Mandalay city, Myanmar. HOMER Grid is utilized to analyze the economic feasibility. The results of the proposed system describe that the cost of energy (COE) is reduced by $0.05/kWh. Additionally, the integrated system incurs fewer costs and generates more profits.
Assessment of Renewable Energy Potential in Building Integrated System for High Rise Building Swe Zin Oo; Swe, Wunna
The Indonesian Journal of Computer Science Vol. 14 No. 1 (2025): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v14i1.4726

Abstract

This research presents the design form the renewable energy sources from the high -rise building, ICON Mandalay in Mandalay,Myanmar. The amount of renewable energy sources that can be harnessed from Building Integrated Photovoltaic (BIPV)panels installed the four facades of the high-rise building and presents the ideas of designing a small-sized wind turbine or micro wind turbine for high rise structure to generate electricity was estimated. The energy self-sufficiency of high- rise building can be approached by generating the renewable energy sources without effecting the original purpose of the structures. As global energy consumption continues to rise, managing building energy use through on-site renewable energy generation can help meet this growing demand. Based on the available building area, calculations show that the two renewable energy sources can be installed, allowing for significant energy generation potential. This paper study energy generation from building integrated renewable energy sources under varying conditions, providing insight into the variability and reliability of energy production in such an environment. Additionally, the total available energy from the BIPV is estimated 5.878 MWh/Day and micro wind Turbines is generated 43.662 kWh/Day and potential contribution to the building's power demands of high-rise buildings. The finding that the amount of energy generated by BIPV in high-rise building is 134 times grater than the energy generated by micro wind power. Therefore, BIPV sources are the most convenient option for urban energy generation in high-rise building.
Comparative Analysis of Battery SOC Depletion and Driving Range of PMSM-driven Electric Vehicle (EV) using Sinusoidal PWM (SPWM) and Space Vector PWM (SVPWM) Control Khin Maung San; Swe, Wunna
The Indonesian Journal of Computer Science Vol. 14 No. 1 (2025): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v14i1.4728

Abstract

Conventional vehicles utilize fossil fuels to provide a good performance and long range leading to exhaust gas emissions causing environmental pollution & low fuel economy. Electric vehicles are called future vehicles in the place of internal combustion engines because they work with pollution and are more efficient. In the impending future, the automotive industry is marching towards cleaner energy. This paper presents the comparative analysis of battery SOC and driving range of an electric vehicle (EV) with a decoupling control method using SPWM and SVPWM. Simulation tests have been carried out on an 80 kW Nissan Leaf EV that consists of a permanent magnet synchronous motor and a three-level inverter. The analysis is focused on MATLAB simulations, based on speed regulation, torque response, usage battery SOC, and travel range. For these closed-loop feedback control methods, the reference speed is obtained by driving an internal combustion engine (ICE) car in the mountain region of Southen Shan State, Myanmar for 60 sec.
Design Optimization Analysis of Ground Grid in Extra High Voltage Substation using ETAP Software Shwe, Hnin Ei; Swe, Wunna
The Indonesian Journal of Computer Science Vol. 14 No. 1 (2025): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v14i1.4730

Abstract

The power system of Myanmar relies on the 500 kV substations. They provide the power needs of the entire power system while covering a huge region. Examining the substation's ground grid system thoroughly is necessary to safeguard the grid and maintain its functionality. The grounding system of the substation is thoroughly examined, incorporating practical data collection for detailed analysis. Special emphasis is placed on the application of the latest IEEE 81-2013 standards during the data collection phase. The analysis and modeling of the network are conducted using ETAP software version 19. Specifically, the Ground Grid System (GGS) module, available in the latest version of ETAP (version 19), is utilized for the study. The substation is planned for an extension, which includes the installation of a new power transformer. The addition of the new power transformer is anticipated to elevate the overall fault level of the substation. This increase in fault level is analyzed in a dedicated case study, and a potential solution is proposed. A new ground mesh is also designed for this area, serving as a benchmark for future substations in the region, ensuring that essential parameters are carefully considered. Additionally, a new ground mesh is designed for a 500 kV substation, as it is expected to become part of the national grid in the near future. This aligns with the ongoing feasibility study conducted by NCC in Myanmar for the establishment of the first 500 kV substation in the area. The impact of variations in ground grid resistance and key safety parameters, influenced by changes in ground grid mesh shape, depth, and size, is thoroughly explained using results derived from various scenarios.
Economic Analysis of Automatic Process Control for Peanut Oil Production by Payback Period Method May Thida Than; Swe, Wunna
The Indonesian Journal of Computer Science Vol. 14 No. 1 (2025): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v14i1.4731

Abstract

This study examined the production method and rate at a peanut oil production industry in Myingyan Township, Mandalay Region. The actual operation time for each machine was collected from this industry. According to the operation process of this industry, 75% of the workers engaged in peanut oil processing used the traditional technologies, which are labor-intensive and time-consuming. This paper presented a study on improving the production rate of peanut oil through the development and implementation of an automated process control system. To control and automate the production process, a programmable logic controller (Siemens S-7 1200) is used by a ladder logic diagram with TIA portal software. The conventional method produced 752 kg of peanut oil for one day, whereas 1127 kg of oil can be achieved by the automatic method. A detailed methodology for economic analysis of peanut oil production, involving the main variables that affect its profitability, was presented and tested by the payback period method. This method refers to the time it takes to recover the initial investment capital for a cloud project.
Co-Authors Aye Aye Mon Htun, Khin Thandar Khin Maung San May Thida Than Oo, Hay Man Shwe, Hnin Ei Soe Soe Than Swe Zin Oo