International Journal of Electrical, Energy and Power System Engineering最新文献_第2页

The Predictive Study on Soweto Wind Turbine Results and Port-Elizabeth 索韦托风力发电结果与伊丽莎白港预测研究

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2023-06-30 DOI: 10.31258/ijeepse.6.2.140-144

T. Sithole, V. Veeredhi, T. Sithebe

{"title":"The Predictive Study on Soweto Wind Turbine Results and Port-Elizabeth","authors":"T. Sithole, V. Veeredhi, T. Sithebe","doi":"10.31258/ijeepse.6.2.140-144","DOIUrl":"https://doi.org/10.31258/ijeepse.6.2.140-144","url":null,"abstract":"The results achieved for the research objectives of the Soweto Wind Turbine project were very encouraging. During comparison of prototype energy delivered versus time of day/month, results showed the energy production of Prototypes 1, 2 and 3 per month during operation at Soweto. It was observed that Prototype 3 outclassed Prototype 1 and 2 in terms of energy generated per month. Prototype 3 achieved 39.5 W output per wind speed of 1.17 m/s and was predicated to generate a maximum 40 kWh per month. Following information can be found in my recent published article, Implementation and Evaluation of a Low Speed and Self-Regulating Small Wind Turbine for Urban Areas in South Africa published at Engineering, Technology and Applied Science Research [ETASR] peer review open journal. This paper will present results on a predictive study which was subsequently done on implementing the same technology in the coastal regions of South Africa such as Gqeberha (formerly Port Elizabeth), where prevailing winds are much stronger. The results showed that, utilizing the empirically obtained data in Soweto, projected an energy output of up to 54.3 W per wind speed of 5.16 m/s (18.6 km/h) and up to 100 kWh per-month.","PeriodicalId":303470,"journal":{"name":"International Journal of Electrical, Energy and Power System Engineering","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129234136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application Of Machine Learning K-Nearest Neighbour Algorithm To Predict Diabetes 机器学习k近邻算法在糖尿病预测中的应用

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2023-06-30 DOI: 10.31258/ijeepse.6.1.117-121

Jack Billie Chandra, Dewi Nasien

引用次数: 0

Employee Attendance Application Using QR Code Android-Based at Eria Hospital Pekanbaru 北干巴鲁埃里亚医院基于安卓系统的员工考勤申请

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2023-02-28 DOI: 10.31258/ijeepse.6.1.111-116

Muhammad Iqbal Fachry Krisbudiana, Edi Susilo

{"title":"Employee Attendance Application Using QR Code Android-Based at Eria Hospital Pekanbaru","authors":"Muhammad Iqbal Fachry Krisbudiana, Edi Susilo","doi":"10.31258/ijeepse.6.1.111-116","DOIUrl":"https://doi.org/10.31258/ijeepse.6.1.111-116","url":null,"abstract":"Eria Hospital has implemented a fingerprint attendance system, but it has some limitations such as difficulty in reading fingerprints, limited access to fingerprint scanner which is only located in one place, and dependence on shared equipment. To overcome these problems, an Android-based attendance application was developed using Waterfall software design. This application uses QR code and GPS to make it easier for employees to record their attendance while in the work area. The quality of this application is based on ISO 25010 quality standards, which include functional testing with all functionalities working well, reliability testing with an A rating, compatibility testing with split-screen feature compatibility, security testing with an A rating, portability testing with results can be install on different devices and Android versions 8.1 to 12, maintainability testing with an A rating, efficiency testing with a startup time of around 1.6 seconds, and user experience testing with attractiveness score of 2.62, perspicuity score of 2.57, efficiency score of 2.62, dependability score of 2.51, stimulation score of 2.62, and novelty score of 2.40. Overall, the implementation of an Android-based attendance application using QR Code has proved to be a viable solution to the challenges faced by the fingerprint attendance system, and has contributed to the optimization of attendance data collection and processing in Eria Hospital.","PeriodicalId":303470,"journal":{"name":"International Journal of Electrical, Energy and Power System Engineering","volume":"262 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133564443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Vortex Generators on Airfoil NACA 632-415 to Aerodynamic Characteristics Using CFD 涡发生器对NACA 632-415翼型气动特性的影响

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2023-02-28 DOI: 10.31258/ijeepse.6.1.133-137

R. Permatasari, Gusty Widyawati

{"title":"Effect of Vortex Generators on Airfoil NACA 632-415 to Aerodynamic Characteristics Using CFD","authors":"R. Permatasari, Gusty Widyawati","doi":"10.31258/ijeepse.6.1.133-137","DOIUrl":"https://doi.org/10.31258/ijeepse.6.1.133-137","url":null,"abstract":"To determine the aircraft’s flight performance, the airfoil type must be considered when designing the wing. A vortex can form when the airfoil travels through a fluid stream with a difference in velocity and pressure around it. Airfoil modification is carried out to delay the occurrence of flow separation by adding a vortex generator. This paper discusses how adding the vortex generator helps slow the stall’s onset and how the vortex generator affects the fluid flow and aerodynamic forces acting on the NACA 632-415. The vortex generator profile is positioned at an x/c = 20% of the chord line’s direction from the leading edge. The variation used is an airfoil’s angle of attack (α). Some parameters to be evaluated include the coefficient lift force (CL), the coefficient drag force (CD), and the gliding ratio (CL/CD). The research was conducted by the CFD method based on the angle of attack that produces the coefficient lift and drag forces. The addition of the vortex generator can delay the flow separation, increase the lift force coefficient by about 24.9%, the drag force coefficient by about 2.7%, and the gliding ratio by 9.1%. \u0000 ","PeriodicalId":303470,"journal":{"name":"International Journal of Electrical, Energy and Power System Engineering","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134537140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Potential Utilization of Oil Palm Production Waste at PT. Tata Hamparan Eka Persada PT. Tata Hamparan Eka Persada油棕生产废弃物的潜在利用

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2023-02-28 DOI: 10.31258/ijeepse.6.1.99-104

Debby Ramadhanti, M. Y. Puriza, W. Sunanda

引用次数: 0

Penetration of DWT & ANFIS to Power Transmission Disturbances DWT & ANFIS对输电干扰的穿透

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2023-02-28 DOI: 10.31258/ijeepse.6.1.105-110

Sandy Ahmad, Azriyenni Azhari Zakri, M. Oktaviandri, W. Sunanda, Aris Suryadi

{"title":"Penetration of DWT & ANFIS to Power Transmission Disturbances","authors":"Sandy Ahmad, Azriyenni Azhari Zakri, M. Oktaviandri, W. Sunanda, Aris Suryadi","doi":"10.31258/ijeepse.6.1.105-110","DOIUrl":"https://doi.org/10.31258/ijeepse.6.1.105-110","url":null,"abstract":"This study proposes a hybrid method to classify and estimate the location of short circuit disturbance on power transmission lines. The hybrid method uses Discrete Wavelet Transform (DWT) and Adaptive Neuro-Fuzzy Inference System (ANFIS). The transmission system is implemented in a real system, in which the electric power transmission system on the KP bus to the GS bus is with a length of 64 Km. The DWT is used to process information from each phase voltage and current transient signal as well as the zero-sequence current for one cycle after the disturbance has started. The ANFIS classification is designed to detect disturbance on each phase and ground in determining the type of short circuit disturbance. ANFIS estimation is used to measure the location of disturbance that occur on the transmission line. The training and testing data are generated by simulating the types of short circuit disturbance using software with variations in disturbance location and fault resistance. The result is that the disturbance classification is with 100% accuracy and the estimated disturbance location is with the lowest error of 0.0006% and the highest error is 0.03%.","PeriodicalId":303470,"journal":{"name":"International Journal of Electrical, Energy and Power System Engineering","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126313165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sliding Gate Opener System with Smartphone Control Using Bluetooth Connection 使用蓝牙连接智能手机控制的滑动开门系统

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2023-02-28 DOI: 10.31258/ijeepse.6.1.120-125

Budhi Anto, Amir Hamzah, Dahliyusmanto

{"title":"Sliding Gate Opener System with Smartphone Control Using Bluetooth Connection","authors":"Budhi Anto, Amir Hamzah, Dahliyusmanto","doi":"10.31258/ijeepse.6.1.120-125","DOIUrl":"https://doi.org/10.31258/ijeepse.6.1.120-125","url":null,"abstract":"This paper presents the sliding gate opener system that android smartphones can remotely control using Bluetooth protocols. The gate opener is driven by a 12-pole single-phase induction motor of permanent-split-capacitor type (PSC motor) coupled with a worm gearbox and rack-pinion power transmission. The PSC motor installation is wired to rotate either forward or in the reverse direction by using a contactors arrangement controlled by the Arduino microcontroller module. Two limit switches are installed at the ends of the gate opener movement to inform the microcontroller to stop the motor automatically when the gate opener touches them. Moreover, the microcontroller module has been wired with Bluetooth transceiver HC-06 enabling it to communicate with other Bluetooth devices. The microcontroller module has been programmed so that the gate opener movement can be remotely governed from android smartphones and controlled at the site by operating a set of pushbutton switches mounted onto the control panel's door. The functional test has been conducted on the sliding gate opener system, and the result shows that the gate opener movement can successfully be controlled locally through operating pushbutton switches and remotely using an android smartphone with up to 8 meters.","PeriodicalId":303470,"journal":{"name":"International Journal of Electrical, Energy and Power System Engineering","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125368603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization Position Variable Refrigerant Flow In Building Using CFD Method 利用CFD方法优化建筑物位置可变制冷剂流量

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2023-02-28 DOI: 10.31258/ijeepse.6.1.126-132

R. Permatasari, Riana Khairunisa

{"title":"Optimization Position Variable Refrigerant Flow In Building Using CFD Method","authors":"R. Permatasari, Riana Khairunisa","doi":"10.31258/ijeepse.6.1.126-132","DOIUrl":"https://doi.org/10.31258/ijeepse.6.1.126-132","url":null,"abstract":"Variable refrigerant flow type is a multi-split type air conditioner for multi-story buildings. The aim of this study getting obtains optimization placement of the condensing unit to inlet air temperature in a multi-story building using the CFD method. The simulation was conducted from the 11th to the 30th floor. There are three variations of condensing unit position on each floor (Variation 1), on every two floors (Variation 2), and on the roof (variation 3). The result of the first variation is 35.32 °C, with the difference between the highest and lowest is 3.9 °C. The average temperature of the 2nd variation is 34.44 °C, with the difference between the highest and lowest being 0.92 °C. The average temperature of the 3rd variation is 36.65 °C, with the difference between the highest and lowest being 8.03 °C. Among the three variations, the 2nd variation of the condensing unit input air temperature is lower. Then the difference between the highest and lowest temperatures is not too far apart, indicating a more even distribution of air. The 1st, 2nd, and 3rd variations condensing unit position do not exceed Panasonic VRF air conditioner operational temperature limit, which is 52 °C. \u0000 ","PeriodicalId":303470,"journal":{"name":"International Journal of Electrical, Energy and Power System Engineering","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114903933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improved Modulation Methods of the Dual-inverter Fed Open-end Winding Three-phase Motor Drives with Equal DC-link Voltage 等直流电压双逆变器直流开路绕组三相电机驱动的改进调制方法

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2022-11-01 DOI: 10.31258/ijeepse.5.3.93-98

I. N. Satiawan, Ida Bagus Fery Citarsa, Warindi, I Ketut Wiryajati, Supriono, Ni Made Seniari, I Made Budi Suksmadana

{"title":"Improved Modulation Methods of the Dual-inverter Fed Open-end Winding Three-phase Motor Drives with Equal DC-link Voltage","authors":"I. N. Satiawan, Ida Bagus Fery Citarsa, Warindi, I Ketut Wiryajati, Supriono, Ni Made Seniari, I Made Budi Suksmadana","doi":"10.31258/ijeepse.5.3.93-98","DOIUrl":"https://doi.org/10.31258/ijeepse.5.3.93-98","url":null,"abstract":"This paper investigates PWM method for the dual-inverter fed open end winding three-phase induction motor drives. This is aimed to improve the quality of the output voltage as well as to enhance the motor performance by solving the drawback of the PWM method. The proposed PWM method operates two inverters in different technique, i.e one inverter operates in square wave mode (slow switching) and one inverter in PWM mode (fast switching). Although the PWM method can improve the quality of the inverter output voltage over the two-level inverter output, the proposed PWM method causes an excessive ripple in both torque and stator current especially at the transient period. The drawback is solved by applying a new switching strategy that manage the inverter switches operate in turn between slow switching and fast switching in one circle of operation. The proposed method is verified via simulation. The result shows that the quality of output voltages improves for all modulation indices in comparison with two-level inverter. Furthermore, torque ripple is reduced, and current ripple are improved as the current waveform is enhanced to be more symmetrical.","PeriodicalId":303470,"journal":{"name":"International Journal of Electrical, Energy and Power System Engineering","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124982019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Implementation Six-Steps Inverter Using Fuzzy Sugeno in Permanent Magnet Synchronous Machines 基于模糊Sugeno的永磁同步电机六步逆变器的设计与实现

International Journal of Electrical, Energy and Power System Engineering Pub Date : 2022-11-01 DOI: 10.31258/ijeepse.5.3.67-72

Reza Sarwo Widagdo, Santoso, Izzah Aula Wardah

{"title":"Design and Implementation Six-Steps Inverter Using Fuzzy Sugeno in Permanent Magnet Synchronous Machines","authors":"Reza Sarwo Widagdo, Santoso, Izzah Aula Wardah","doi":"10.31258/ijeepse.5.3.67-72","DOIUrl":"https://doi.org/10.31258/ijeepse.5.3.67-72","url":null,"abstract":"Controlling the speed of the permanent magnet synchronous machines plays an essential role in the industrial process and keeps the permanent magnet synchronous machines running quickly and efficiently. Even if the load changes, the rate speed of the permanent magnet synchronous machines should be adjusted to a constant speed. An excellent permanent magnet synchronous machines speed control system must respond quickly and accurately. However, in practice, rarely find a permanent magnet synchronous machines controlled to achieve a certain speed. This research presents an analysis of fuzzy logic control using seven membership functions for speed control of permanent magnet synchronous machines. Rotor speed control is performed on the rotor voltage by changing the duty cycle value. This voltage change affects the torque of the engine. Adjust the speed by changing the input voltage of the permanent magnet synchronous machines with the six-steps inverter. In the open-loop test (without control), the system cannot reach the desired setting and will only run after input from the throttle. In a closed loop (using fuzzy logic control), the system can achieve the desired setting in 90 seconds even if the setpoint is changed and can move to the setpoint.","PeriodicalId":303470,"journal":{"name":"International Journal of Electrical, Energy and Power System Engineering","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130939047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0