Basic Electricity Research Articles

UNDERSTANDING THE CARBON INTENSITY OF SOUTH KOREA’S EXPORTS: A MULTIPLICATIVE STRUCTURAL DECOMPOSITION ANALYSIS

Despite the large and growing role of exports in Korea’s carbon emissions, they have been largely overlooked in Korea’s carbon neutrality strategy. With this in mind, we analyze Korea’s aggregate emission intensity of exports (AEIE), an indicator of the environmental efficiency of exports, which decreased from 1.37[Formula: see text]Kt/$M to 0.74[Formula: see text]Kt/$M during 2000–2014. Using the multi-regional input-output model and two-stage multiplicative structural decomposition analysis (MSDA), we uncover drivers of changes in the AEIE. Analysis of bilateral AEIE shows that exports to developed countries had a large impact on the decline while exports to developing countries have risen in importance. MSDA shows that the carbon intensity effect contributed most to the decline but that trade in intermediate goods and trade in final goods were also important. At the sectoral level, manufacturers of basic metals, electricity, gas, steam and air conditioning supply and transportation sectors were shown to be important drivers of the decline in the AEIE. As the first study to analyze the drivers of Korea’s AEIE, this paper suggests various abatement policies to help achieve the goal of carbon neutrality by 2050.

Hilbert Fractal Antenna for Abnormal Discharge Detection of Transmission Equipment

The safe and stable operation of the power system can ensure people’s basic electricity needs. It also plays an important role in energy security and economic development and can contribute to environmental protection and energy conservation. If there are problems in the power system, it will not only affect people’s normal life and work but also lead to power loss or waste, thereby exacerbating the impact on the environment. With the long-term operation of transmission equipment, insulation devices are aging, leading to frequent abnormal discharges and affecting the safety and stability of the power system. Therefore, timely detection and troubleshooting are necessary. When abnormal discharge occurs in transmission equipment, it will radiate radio frequency (RF) electromagnetic waves, which are mainly concentrated between 200 MHz and 300 MHz. RF antennas that can capture signals in this frequency band can be used for detection to determine whether abnormal discharge has occurred. This article uses the Hilbert fractal antenna as the research object to analyze the impact of different orders on antenna performance and optimizes the different feeding point positions of the antenna. Finally, the antenna structure for detecting abnormal discharge is obtained. By making an actual antenna and conducting experimental analysis, the discharge detection function of the designed antenna is verified.

Electrifying Discoveries: Mastering Basic Electronics and Unveiling the Power of Electricity with ChatGPT

This research investigates a novel educational paradigm merging interactive technology with conventional pedagogy to enhance comprehension of essential electronics and electricity concepts. The study assesses the integration of ChatGPT, a sophisticated language model, as a dynamic instructional tool, introducing learners to foundational electricity principles, electronic components, circuits, and digital systems. The research examines ChatGPT's real-time responses, evaluating their efficacy in elucidating complex topics, addressing individual queries, and adapting the learning experience to each learner's pace and preferences. Preliminary findings indicate increased engagement, deeper comprehension, and improved knowledge retention. The study's insights extend beyond immediate applications, shedding light on the potential of AI integration in education, a pivotal consideration for educators, designers, and policymakers. By harnessing ChatGPT's capabilities, this research paves the way for more effective and engaging learning experiences in basic electronics and electricity, setting a precedent for technology's intersection with education.

A Stackelberg Game-based robust optimization for user-side energy storage configuration and power pricing

With the rapid development of demand-side management, battery energy storage is considered to be an important way to promote the flexibility of the user-side system. In this paper, a Stackelberg game (SG) based robust optimization for user-side energy storage configuration and basic electricity price decisions is proposed. Firstly, this paper put forward a two-stage energy management framework considering the interactive relationship between the supplier-side system and the user-side system. Secondly, based on the two-part electricity price mechanism, a bi-level optimal sizing of user-side energy storage is established in which robust dispatching is considered to deal with the uncertainty of renewable energy. Thus, a three-layer optimization model of “pricing on the power supply side–basic scenario configuration on the user side–worst-case scenario scheduling on the user side” is formulated. Through relaxing the state variables of energy storage in the configuration and scheduling models and combining Karush-Kuhn-Tucher conditions, the user-side model is transformed into a single-layer problem. A distributed algorithm based on the method of bisection is used to solve the two-stage SG problem. The simulation results demonstrate the basic electricity price and energy storage configuration suggestions and prove the superiority of the proposed method.

Analisis Perbandingan Ekonomis Penggunaan Penerangan Jalan Umum Solar Cell dengan Penerangan Jalan Umum Konvensional di Bandar Udara Djalaluddin Gorontalo

This study aims to conduct an economic comparison analysis between the use of solar cell street lighting and conventional street lighting at Djalaluddin Airport in Gorontalo. The research method employed is quantitative, with data collection through observation, interviews, and document analysis. The findings indicate that the utilization of solar cell street lighting at UPBU Djalaluddin Airport is relatively ineffective from an economic standpoint. The operational costs for battery replacement in solar cell street lighting are comparatively higher than using PLN electricity in conventional street lighting. Furthermore, the initial investment cost for solar cell street lighting is significantly more expensive than conventional street lighting. The total costs of solar cell street lighting over a 10-year period are also higher compared to conventional street lighting. However, the operational costs for solar cell street lighting are simpler, limited to the expenses for cleaning the solar panels, while the operational costs for conventional street lighting depend on the government-regulated Basic Electricity Tariff (TDL).

Discovering basic electricity through the “forty electronic challenges”

The "Forty Electronic Challenges" is a "discovery learning" and socio-constructivist science activity that has become rather popular in Canada. The article recalls its emergence and development. It discusses its theoretical underpinnings and how it fits into the existing literature. It then gives educators all the guidelines they need to use it autonomously, and presents observations derived from our extensive use of the activity over the years. Finally, a discussion of its promises, limitations, and possible extensions is presented.

A New Electrification Model to End Energy Poverty: An example from a novel rural electrification approach in Madagascar

Highlighted by the United Nations sustainable Development Goals to ensure universal access to clean, reliable, and modern energy services by 2030, the world is increasingly becoming concerned by energy poverty and its consequences on human development and the environment. Yet, even if numerous initiatives and a significant amount of money are directly addressed to tackle the energy-access challenges, a billion people are still denied access to basic and modern electricity services, especially in rural areas of sub-Saharan Africa and Southeast Asia. In the past two decades, the African continent has seen an encouraging improvement as the number of people gaining access to electricity rose from 9 million per year between 2000 and 2013 to 20 million per year between 2014 and 2019, outpacing population growth for the first time. However, most of those recent improvements are restricted mainly to urban and peri-urban areas of a small number of countries located in eastern or western Africa. Also, the population without access to electricity in Africa is expected to increase in the coming years following the health crisis and economic downturn caused by COVID-19. This definitely proves the fragility and poor resilience of the electrification solutions favored today. While grid extension and conventional microgrids suffer from low inclusivity and replicability, solar home systems are only a stopgap measure and fail to boost socioeconomic development. A third way must be proposed to combine quick and affordable access to basic electricity services and community uplift through socioeconomic development, answering the two greatest challenges that developing countries are struggling to cope with today. With this objective in mind, Nanoé, a French–Malagasy social company, is developing the <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">lateral electrification model</i> , based on the collaborative and progressing building of electric infrastructures, which is presented in this article, first from a general point of view and then through a focus on Nanoé’s experience in Madagascar.

How carbon tax affects the economy and environment: Point of view a corporate taxpayer

This research aims to examine the effects of carbon taxes on the economy and the environment from the viewpoint taxpayer of corporations (via case studies of South Sulawesi province's coal-fired power facilities). Qualitative methods were used to get this information. PT. PLN Indonesian Power Barru is the focus of this study. Interviews, observations, and written records are all tools used in data collection. According to the study's findings, carbon tax has benefits for companies and Indonesia where revenue from carbon tax can be allocated to other sectors like health and education. However, the cost of the carbon tax itself, which results in an increase in the basic electricity tariff, has an unsettling effect on businesses. In response to carbon taxes, businesses may seek out options that generate less carbon emissions, or even switch to renewable (environmentally friendly) energy sources.

Development of Basic Electricity and Electronics Practicum Jobsheet for Students of Electric Power Installation Engineering Expertise at SMK Negeri 3 Boyolangu

This development research aims to develop printed teaching materials in the form of practicum job sheets to assist the learning process of basic electricity and electronics by the 2013 curriculum. Research and Development is a research model used to develop existing products. The development model in this study is the Sugiyono model. This development stage begins with looking for potential problems, collecting data, designing products, validating designs, product trials, design revisions, product testing, product revisions, usage trials, and product revisions, and ends with mass production. The development of this teaching material has met the criteria for proper use with the results obtained from experts with a validation expert value of 93.8 percent; product trial results with an average value of 90.4%, and usage trial results with an average value of 93.6 percent.

Education on the Use of Iot Technology for Energy Audit and Management Within the Context of Conservation and Efficiency

Education on the use of IoT technology for energy audit and management within the context of conservation and efficiency The demand for electrical energy rises in direct proportion to a region's economy. The basic electricity rate rises in response to the steadily growing demand for electrical energy. Increased use of electrical energy is a result of wasteful conduct and a disregard for equipment standardization. increases the utilization of electrical energy. The local population still does not appear to be concerned or aware of how crucial it is to keep the electrical supply sustainable.Many studies that are pertinent to energy efficiency and conservation education have been conducted.Thus, the community needs to be informed of this information in order to, among other things, increase understanding, encourage the community to behave economically, conduct audits, and manage electrical energy in accordance with standardized practices. SMK N 1 Brebes, a vocational school for electrical and electronics, is a setting that is pertinent to the use of this technology. The development in students' abilities after engaging in this activity shows that it has delivered education in the form of reading material and energy management practice.

Education on the Use of Iot Technology for Energy Audit and Management Within the Context of Conservation and Efficiency

Education on the use of IoT technology for energy audit and management within the context of conservation and efficiency The demand for electrical energy rises in direct proportion to a region's economy. The basic electricity rate rises in response to the steadily growing demand for electrical energy. Increased use of electrical energy is a result of wasteful conduct and a disregard for equipment standardization. increases the utilization of electrical energy. The local population still does not appear to be concerned or aware of how crucial it is to keep the electrical supply sustainable.Many studies that are pertinent to energy efficiency and conservation education have been conducted.Thus, the community needs to be informed of this information in order to, among other things, increase understanding, encourage the community to behave economically, conduct audits, and manage electrical energy in accordance with standardized practices. SMK N 1 Brebes, a vocational school for electrical and electronics, is a setting that is pertinent to the use of this technology. The development in students' abilities after engaging in this activity shows that it has delivered education in the form of reading material and energy management practice.

Analisis Deskriptif Pembelajaran Dasar Listrik Elektronika selama Pandemi Covid-19

This article reviews the implementation of online learning and student motivation during a pandemic in the basic subjects of electricity and electronics at SMK Negeri 5 Padang. This research answers the question of how to describe the implementation of online learning and students' learning motivation in the Basic Electricity and Electronics (DLE) subject at SMK 5 Padang. This research is a quantitative study with a population of all students of class X who take Basic Electricity and Electronics (DLE) subjects at SMK 5 Padang City with a total of 35 people. The results showed that the learning constraints in the category of students who chose Yes showed a percentage of 61.4%. The category that chose Not showed a percentage of 38.6%. Regarding online learning resources, students who chose Yes showed a percentage of 40.7%. The category that chose Not showed a percentage of 59.3%. There is a desire and desire of students to learn who choose Yes shows a percentage of 90%. The category that chose No shows a percentage of 10%. There is encouragement and need for students in learning who choose Yes to show a percentage of 45.7%. The category that chose Not showed a percentage of 54.3%. There is hope that students in the future who choose Yes show a percentage of 79.4%. The category that chose No shows a percentage of 20.6%.

Perbandingan Hasil Belajar Metode Problem Based Learning dan Metode Problem Solving

This research was conducted with the aim of knowing the comparison of student learning outcomes using the Problem-Based Learning and Problem-Solving methods in the Basic Electrical and Electronics learning material for class X TITL SMK N 2 Kota Solok. The type of research used is Quasi-Experimental Design with the Pretest Posttest Nonequivalent Control Group Design method. Data analysis techniques use the normality test and homogeneity test, then use the t-test hypothesis test to make a decision. The results of hypothesis testing were carried out using the t-test and the results obtained were that the count value was smaller than the t-table at a significant level of 5%. Thus, it can be concluded that there is no significant difference in student learning outcomes in learning Basic Electricity and Electronics with the Problem-Based Learning and Problem-Solving methods at SMKN 2 Kota Solok.

A Practical Curriculum Design and Learning Effectiveness Evaluation of Competence-Oriented Instruction Strategy Integration: A Case Study of Taiwan Skills-Based Senior High School.

The 12-Year Basic Education Curricula not only follow the objectives of previous curriculum syllabus development, but they place more focus on competence-oriented instruction, which aims to emphasize the importance of combining the curriculum with life situations that are not solely based on learning knowledge and skills. This study aims to investigate the results of the students' learning effectiveness and learning engagement after adding competence-oriented instructional strategies into electrical engineering practical subjects offered by the Department of Electrical Engineering in skills-based senior high schools, and, at the same time, to figure out the difference in learning effectiveness using different instructional strategies. Two classes of students from the Department of Electrical Engineering major in electrical engineering practical subjects in one skills-based senior high school in Central Taiwan were chosen as the participants for this study. By way of pre-test-post-test research design and heterogeneous grouping, a 10-week instruction experiment consisting of two groups and occurring over the course of 30 classes was conducted, wherein competence-oriented instructional strategies were used in an experimental group, while traditional didactic instructional strategies were used in a control group. By analyzing the collection of quantitative and qualitative data through competence-oriented instructional strategies, the instruction effectiveness and feasibility of the basic electricity practical curriculum were developed as the study topic for understanding how competence-oriented instruction can be implemented into the practical curriculum of the electrical engineering and electronic engineering group. According to the research objective, the results were concluded as follows: (1) Students of the Department of Electrical Engineering have a slightly better learning effectiveness in electrical engineering practice under competence-oriented instructional strategies compared with those who learned under the traditional didactic instructional strategies; (2) there is a significant difference in the students' learning engagement in electrical engineering practice from the Department of Electrical Engineering under competence-oriented instructional strategies compared with those who learned under the traditional didactic instructional strategies. The conclusion of this study emphasizes designing questions based on life situations, thereby applying what students have learned to solve problems they encounter in their daily lives. Compared with traditional didactic instructional strategies, competence-oriented instructional strategies not only have a better learning effectiveness and provide flexibility for the students to solve problems and provide analysis for situations, they also have broader applicability and an increased number of positive benefits when it comes to students' group interactions and sharing.

Trainer Effectiveness in Basic Electrical and Electronic Practices in Vocational High Schools

Basic Electricity and Electronics is one of the subjects in VHS. This subject teaches theory and practice. Practical subject matter includes: how to measure the components of resistors, capacitors, coils, transistors and other components. This study aims to determine the effectiveness of practical trainers that have been developed for basic electricity and electronics subjects that have been developed and designed as practical learning media. The method used in this study is research and development (R n D), using the Hannafin and Peck model. The feasibility of practice trainers is based on the results of expert assessments, namely (1) assessment by material experts with a percentage gain of 92.50%, (2) assessment by media experts with an acquisition percentage of 82.60%, (3) assessment of student use obtains a percentage of 86.89 %. from the results of the assessment of the experts and students, it can be concluded that the basic electronics practice trainer is said to meet the requirements and is suitable for use as a learning medium for Basic Electricity and Electronics Class X for the Department of Audio-Video Engineering at Vocational High Schools. For the effectiveness of the trainers that have been developed it is done by comparing the results of the initial test with the results which result in an increase in learning outcomes by an average of 42.98%, so it is concluded that there is an increase in learning outcomes. To test the effectiveness obtained tcount = 98.2 and ttable = 2.056, because tcount&gt; ttable, it can be said that this trainer is effective for use in practice. A gain value of 0.8 is in the range &gt; 0.7, this means an increase in basic electrical and electronics practical skills before and after using a basic electrical and electronics practicum trainer with a high category.

Race and energy poverty: The moderating role of subsidies in South Africa

Although energy poverty has recently gained wider attention, fewer efforts have been made to understand the race-energy poverty nexus, especially for developing economies. To contribute to the literature, our study analyzes the effect of race on multidimensional energy poverty while accounting for the moderating role of subsidies by utilizing the South African General Household Survey. The estimates show that Non-Whites, predominately Blacks are susceptible to energy poverty and experience about 11.5% energy poverty prevalence than their White counterparts. The result is consistent when other robust methods are applied. This difference is attributed to the level of discrimination Non-Whites face, as confirmed by the Oaxaca-Blinder decomposition analysis. The decomposition analysis further showed that compensating Non-Whites would reduce their energy poverty prevalence by 17%. More so, the moderation analysis shows that the free basic electricity and social housing subsidies received by Non-Whites are generally ineffective in reducing their energy deprivation. Therefore, we urge policymakers to put measures in place to end the discrimination that comes with the allocation of subsidies, to facilitate the adoption of clean energy services among Non-Whites and eradicate energy poverty.

Efektivitas Pembelajaran Daring dalam Masa Covid-19 pada Mata Pelajaran Dasar-Dasar Teknik Ketenagalistrikan

This research is motivated by the difficulties of students in understanding bold learning during the Covid-19 pandemic, and students' difficulties in understanding basic electricity learning which is systematic, logistics full of symbols and surprising formulas during courageous learning. So this study is about the effectiveness of learning to dare to use online media in the subject of Basic Electrical Engineering at SMK 2 Payakumbuh. The purpose of the study was to determine the effectiveness of bold learning on the subject of Electrical Engineering Basics. The researcher carried out this research activity using a quantitative approach with the type of pre-experimental design type one group design (one group pretest posttest design). Multiple-choice written test questions are a data collection technique in the research process carried out. The proportion formula is an analytical technique that researchers use to determine classical learning completeness. Meanwhile, in order to find out how effective the bold learning process was before the learning activities, from the pre-test and post-test using effect size analysis using Cohen's formula. The result of this study is that learning using courage is effective as seen from the students' learning mastery and the result of the effect size test is large or effective, by knowing the various treatments.

Design islanded hybrid micro-grid and analyzing its socio-economic technical and environmental aspects for off-grid electrification in developing countries

Developing countries are facing many electricity crises such as low production, worst power outages, blackouts, and poor inadequate supplies. Most of their rural areas have no basic power infrastructure as it requires long transmission lines, which causes high installation, operation, maintenance costs and line losses issues. The people of these unconnected rural areas belong to low-income families and use kerosene oil, candles, small solar panels, and batteries to meet their basic electricity needs. As an alternative, renewable-based hybrid energy systems have enormous potential. It is also environmentally friendly and low-cost, sustainable, and promising solution to electrify rural off-grid areas. This research work focuses on the economic and optimal design of a renewable-based hybrid energy system for the rural off-grid area of Pakistan. HOMER (Hybrid Optimization of Multiple Energy Resources) software is used to perform techno-economic and environmental analysis. The optimization results show that the most economical and optimal configuration is PV/diesel generator with batteries having lower harmful emissions. Furthermore, the sensitivity analysis is performed to refine the results which show that the most optimal system will remain sustainable if variations occur in the sensitivity variables in the future. Moreover, the results and findings of this study can help the government to make effective policies and planning to provide reliable and affordable electricity to the off-grid areas, to improve the electrification rate in the country.

Development of augmented reality based occupational health and safety guidebook in electricity basic laboratory

Basic knowledge of electricity is needed in various work competencies in the field of electricity. As a student of the Electrical Engineering Department, basic electricity is something that must be understood. The basic understanding of electricity is not enough just theory, it takes hands-on practice in a laboratory with infrastructure, processes, and laboratory management adapted to the world of work. In order to optimize this, a guidebook is needed. The research aims are: (1) in the form of an augmented reality-based guidebook product. (2) Knowing the performance of augmented reality-based manuals. (3) The priority of augmented reality-based guidebooks is viewed from the material and media aspects. (4) Knowing student responses to augmented reality-based guidelines. The research uses the research and development (R&amp;D) method of the ADDIE model according to Lee &amp; Owens (2004), which has stages: Analysis, Design, Development, Implementation, and Evaluation. The results of the research are: (1) A manual that is equipped with augmented reality technology, namely the AR-Daslis application to scan marker images. (2) The performance of the AR-Daslis application through the black box test gets a percentage of 100% which indicates the function can run well.

Optimal allocation of photovoltaic energy storage on user side and benefit analysis of multiple entities

A bi-level optimization configuration model of user-side photovoltaic energy storage (PVES) is proposed considering of distributed photovoltaic power generation and service life of energy storage. The upper layer takes the user’s lowest annual comprehensive cost as the objective function to optimize the capacity of photovoltaic & energy storage and power of energy storage considering the user’s annual electricity bill, basic electricity bill, and investment, operation and maintenance cost of PVES. The lower level takes the minimum daily operation scheduling cost as the objective function to optimize the charging and discharging control strategy of energy storage. The YALMIP solver is used to solve the optimization model, and the effectiveness of the model is verified through an example, which shows that reasonable configuration of photovoltaic & energy storage can reduce the user’s overall annual cost. In the context of the current national electricity price adjustment policy, by analyzing the impact of different time-of-use (TOU) electricity prices and basic electricity charges on the configuration capacity of user-side PVES to find the break-even point of the user’s PVES investment return rate in order to provide guidance to users for installing PVES systems. By analyzing the impact of different TOU electricity prices and basic electricity rates on the benefits of multiple entities, and taking into account the benefits of users, power grids and society at the same time to provide a theoretical basis for formulating a reasonable electricity price system.