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Analysis of Reactive Power Compensation Using Static Compensator (STATCOM) Technology in Distribution Networks
Full text linkElectricity distribution networks often face efficiency challenges due to uncompensated reactive power, causing power factor degradation, increased power losses, and voltage instability. This study aims to analyze the use of Static Compensator (STATCOM) as a reactive power compensation solution in 20 kV distribution networks, with a focus on improving power factor, reducing power losses, and voltage staability. These challenges are relevant in Indonesia, where growing electricity demand and limited infrastructure exacerbate energy inefficiencies. The research methodology uses a quantitative approach based on simulation in MATLAB/Simulink. A simple distribution network model with one feeder (load 500 kW, 300 kVAR) is created, integrated with a STATCOM with a capacity of 300 kVAR. Simulations are carried out to compare conditions before and after the use of STATCOM at constant and fluctuating loads, measure power factor, power losses, and voltage profiles. The simulation results show that STATCOM improves the power factor from 0.857 to 1.0, reduces power losses by 26.5% (from 425.39 W to 312.50 W), and suppresses voltage drop from 24.51 V to 12.50 V. STATCOM effectively maintains voltage stability under disturbance conditions with a fast response (5-10 ms). However, the high initial cost indicates the need for economic optimization for practical implementation
A Prototype Iot Temperature And Humidity Monitoring Esp32 Based Via Thing Speak
Full text linkInternet of Thingsis one of the latest technologies in real-time data management, especially for temperature and humidity monitoring. This study develops a prototype of an ESP32-based IoT system that is integrated with the ThingSpeak platform for temperature and humidity monitoring. The system uses a DHT22 sensor for data collection, while the ESP32 acts as the main controller that sends data to ThingSpeak via a Wi-Fi connection, and displays data on an OLED Display. Tests were conducted in regular and air-conditioned rooms, showing significant differences in humidity. Air-conditioned rooms show humidity within normal limits (45-65%), while regular rooms reach 70%. The data sent to ThingSpeak is visualized in a graph with details of the data sending time, based on the results of this study it is proven that the designed system can display temperature and humidity data in real-time on ThingSpeak, and has the potential to be applied on a wider scale
A Consumption Analysis Study And Prognosis Of PT PLN IP UP Payo Selincah Electric Power Savings
Full text linkEnergy consumption efficiency is a critical factor in optimizing power system performance, particularly in large-scale industrial and utility operations. PT PLN IP UP Payo Selincah, a key electricity provider, requires a comprehensive analysis of its power consumption patterns to identify potential energy savings and enhance operational efficiency. This study aims to analyze historical electricity consumption data and develop a prognosis model for energy savings at PT PLN IP UP Payo Selincah. The research methodology involves data collection from operational records, followed by statistical and computational analysis using machine learning and time-series forecasting techniques. The study evaluates key consumption parameters, including load profiles, peak demand periods, and efficiency losses, to determine areas where energy-saving measures can be implemented. Advanced predictive models, such as ARIMA and artificial neural networks (ANNs), are employed to forecast future consumption trends and assess the potential impact of optimization strategies. Findings from the analysis indicate significant opportunities for reducing energy wastage through improved load management, power factor correction, and the integration of renewable energy sources. The prognosis model provides insights into expected future consumption patterns, allowing PLN to implement proactive energy-saving policies. This research contributes to enhancing the sustainability of PT PLN IP UP Payo Selincah's operations while aligning with national energy conservation objectives
Design and Development of a Virtual Public Complaint Service System for the Medan City Cooperatives and Small and Medium Enterprises (UKM) Service Based on a Website
Full text linkModern technology has developed rapidly, providing various solutions to facilitate activities and work. The Medan City Cooperatives and Small and Medium Enterprises (UKM) Service, which handles various complaints from the public regarding SME services, still uses manual methods in its complaint process. This manual method often causes various problems, such as delays in handling complaints and difficulties in monitoring complaint status. To overcome these problems, this study aims to design and build a website-based virtual public complaint service system application. This study uses data collection methods through observation, interviews, and documentation. In developing the application, the Personal Home Page (PHP) method is applied because of its flexibility in handling changing needs during the development process. Direct communication with clients is the main focus in this method. This application was developed using Visual Studio Code as an editor, and MySQL as a database, thus accelerating the application development process. The results of this study are in the form of a public complaint information system application that can facilitate the public and the Medan City Cooperatives and Small and Medium Enterprises Service in managing and responding to complaints effectivel
Analysis of the Performance of the Apparatus of the Protocol and Communication Section of the Regional Secretariat Leaders in Supporting the Activities of the Mayor of Bandung
Full text linkThis research is motivated by the lack of performance of human resources in the Protocol and Leadership Communication Section at the Bandung City Regional Secretariat. The purpose of the study was to analyze and determine the performance of human resources in the Protocol and Leadership Communication Section at the Bandung City Regional Secretariat. Then using a descriptive qualitative method. The data sources used are primary data and secondary data. Data collection techniques through observation, interviews and documentation. Data analysis methods with data reduction, data presentation and drawing conclusions. The results of the study showed that the Analysis of the Performance of the Protocol and Leadership Communication Section of the Regional Secretariat in Supporting the Activities of the Mayor of Bandung. The productivity indicator has been implemented but is still not optimal.apparatus resources of the Protocol and Communication Section of the Bandung City Regional Secretariat. The indicators of responsibility and accountability have been implemented quite well. The indicators of responsiveness based on the results of the study are still not optimal. Then, the indicators of service qualityapparatus resources of the Protocol and Communication Section of the Bandung City Regional Secretariathas been implemented quite well. Inhibiting FactorsProtocol and Communication Section of the Regional Secretariat of Bandung Cityin improving the performance of human resources, namely the limited number of human resources and the lack of coordination between agencies. Then efforts are made to overcome inhibiting factorsProtocol and Communication Section of the Regional Secretariat of Bandung Cityin improving performance apparatus resources, namely increasing apparatus resources and increasing coordination between agencie
Evaluation of the Pancasila Ideology Development Policy for Educators at the Pancasila Ideology Development Agency
Full text linkThe problem in the implementation of training is that the objectives of the training program have not been achieved, such as increasing the competence of training participants, this is evidenced by the results of the pretest and posttest scores which are not too different. Therefore, an evaluation is needed in the implementation of the PIP training program. Considering that there has never been an evaluation of the PIP training program for the 2023 and 2024 budget years, especially in the implementation of education and training for PIP training teachers. The importance of program evaluation includes providing information that is used as a basis for making policies and decisions. The objectives of this study are, 1) to evaluate the training program for PIP training teachers at BPIP in the 2023 and 2024 fiscal years, 2) to analyze the obstacles and barriers to evaluating the training program for PIP training teachers at BPIP in the 2023 and 2024 budget years, 3) to analyze the efforts of the training program for PIP training teachers at BPIP. This research method uses a naturalistic qualitative approach (case study). By using the CIPP evaluation model. The evaluation components are: 1) context, 2) input, 3) process and, 4) product. The data analysis technique used is the Miles and Huberman model. The results of the study on the context dimension did not find any gaps, the input dimension still found gaps in the indicators: 1) facilities and infrastructure, 2) methods, and 3) teaching materials, the process dimension still found gaps in the training implementation indicators, and the product dimension still found gaps in the accreditation indicators
A Homestay Development Based On Traditional Architecture And Ethno Design Of Toba Traditional Houses With The Marga Kinalsystem In Lumban Suhi-Suhi, Pangururan District, Samosir Regency
Full text linkCommunity service program that focuses on improving the welfare and economy of the community, Lumban Suhi-Suhi Village, Pangururan District, Samosir regency. This program was implemented from may 2024 and ended in December 2024. Using the fo-cus group discussion (FGD) method with homestay owners to provide training for own-ers/family clans on managing the Batak Toba traditional house homestay in improving the community's economy and maintaining cultural heritage products by maintaining the uniqueness of traditional architecture and ethno design of the Batak Toba house. The re-search methods include field studies, in-depth interviews with local indigenous commu-nities, and a literature review of Toba traditional architecture. This approach explores cul-tural elements applicable to homestay designs, such as building structures, traditional ornaments, and spatial layouts that reflect the lifestyle of the Batak Toba community. The Batak Toba traditional house has a high cultural value, especially in terms of aesthetics and as a cultural heritage product that really needs to be maintained. The Batak tradi-tional house that is still being empowered must continue to be preserved to maintain the culture it has. One of the most effective ways to empower the Batak Toba traditional house into a homestay. So that the development of this kinship-based homestay willpro-vide welfare for the family and clan owners
Automatic Classification System Color Of Bottle Detection Tool Using Tcs3200 Sensor Based On Arduino
Full text linkThe increasing demand for automation in industries has led to the development of efficient and cost-effective classification systems. This study focuses on designing and implementing an automatic bottle color classification system using the TCS3200 color sensor, integrated with Arduino microcontroller technology. The system aims to detect and classify bottle colors accurately to streamline industrial processes, such as packaging and sorting. The TCS3200 sensor, capable of detecting a wide spectrum of colors, serves as the primary sensing device. It converts light intensity into frequency signals, which are processed by the Arduino microcontroller to determine the color of the bottle. The classification process involves predefined thresholds for Red, Green, and Blue (RGB) components, allowing the system to categorize bottles into specific color groups. Experimental results demonstrate that the system achieves high accuracy in identifying bottle colors under varying lighting conditions. The system is also highly scalable, making it adaptable to different industrial needs. This research concludes that the proposed solution offers a reliable, efficient, and low-cost alternative for bottle color classification in automated industrial applications
A Planning Study Of Off-Grid Based Rooftop Solar Power Generation System (PLTS) On Residential Houses Using PVSyst
Full text linkSolar energy is a renewable energy source that is abundant, environmentally friendly, and has great potential to be utilized, especially in tropical areas such as Indonesia. This research aims to design and analyze an off-grid rooftop solar power generation system (PLTS) for residential houses in Medan City using PVSyst software. The research location is at the coordinates of Latitude 3.5951°N and Longitude 98.6722°E, with the tilt angle of the solar panel adjusted at 30° (following the slope of the roof of the house) and the facing direction to the south with an azimuth angle of 180°. The PV modules used are monocrystalline silicon type (STP 250S-20/Wd+) with a total capacity of 3 kWp. The system is designed to meet a daily energy demand of 7.1 kWh/day and an annual demand of 2,598 kWh. The system configuration includes 12 PV modules, a battery with a capacity of 800 Ah (24 V), and an inverter to support standalone operation for 2.2 days without energy input from the solar panels. Simulation results show that the system generates an average energy of 9.1 kWh/day, with a Performance Ratio (PR) of 0.544 (54.4%). The main losses include losses in the PV Array (0.75 kWh/kWp/day), losses in the solar system (0.22 kWh/kWp/day), and unused energy of 1.01 kWh/kWp/day. Solar Fraction reached 99.7%, with Missing Energy of 6.972 kWh due to weather variations. This research shows that off-grid rooftop solar PV can be an effective solution to meet residential energy needs, reduce carbon emissions, and support the transition to a cleaner and more sustainable energy system
A Smart IOT Approach to Optimize Electric Circuit Breaker Reliability and Functionality
Full text linkIn modern electric power systems, circuit breakers play a critical role in maintaining operational safety and system stability by disconnecting faulty sections during abnormal conditions. However, the reliability and functionality of conventional circuit breakers are often compromised due to delayed maintenance, undetected mechanical wear, and the lack of real-time monitoring. This study proposes a smart Internet of Things (IOT)-based approach to enhance the reliability and functionality of electric circuit breakers by enabling real-time data acquisition, condition monitoring, and predictive maintenance. The system integrates various sensors—such as temperature, current, and vibration sensors—connected through microcontrollers and cloud platforms for remote access and analysis. Through simulations and prototype testing, the proposed system demonstrates improved response time in fault detection, early failure diagnosis, and efficient maintenance scheduling. This research highlights the potential of IOT technology in transforming traditional power protection systems into intelligent, adaptive, and more reliable infrastructures