American Journal of Electrical Power and Energy Systems最新文献

Evaluation Method of Average House Demand in Iraq’s Middle Territories 伊拉克中部地区平均住房需求评估方法

American Journal of Electrical Power and Energy Systems Pub Date : 2024-07-23 DOI: 10.11648/j.epes.20241302.12

Qais Shaker, Rashid Jabbar, Fadhil Hammadi, Monadhil Al-chaderchi

{"title":"Evaluation Method of Average House Demand in Iraq’s Middle Territories","authors":"Qais Shaker, Rashid Jabbar, Fadhil Hammadi, Monadhil Al-chaderchi","doi":"10.11648/j.epes.20241302.12","DOIUrl":"https://doi.org/10.11648/j.epes.20241302.12","url":null,"abstract":"Iraqi householders are commonly interesting of hybrid power systems due to the considerable shortage of grid utility to meet there simple daily residential demands. Hybrid power systems that based on combination of multiple power sources (solar panels) and (diesel or gasoline) power generators are most favorable to use there, due to the small sizes and comparatively cheap initial prices of such systems. Renewable energy sources (RES) are intermittent in nature and change seasonally and daily, which make the hourly function evaluation, of electricity demand, is very important in the design of power systems based on these sources. In this work, average house electricity demand of Iraq’s middle territories is estimated, by considered Baghdad average house demand as representative for this region, in terms of appliances sizes and annual distribution of daily operation hours. Also, solar system is designed based on the estimated consumption profile. It’s found that the estimated profile with and without two tons of refrigeration air-conditioner system provide close results to the real values of Baghdad average house demand. Beside its reliability, independence and environmentally advantages, solar system that designed here show considerably cost effective than the private business diesel generator and discontinuous grid service in this area.\u0000","PeriodicalId":125088,"journal":{"name":"American Journal of Electrical Power and Energy Systems","volume":"38 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141813264","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

Modulation of Wide Voltage Range Interface DC-DC Converter in DC Distribution System 直流配电系统中宽电压范围接口 DC-DC 转换器的调制

American Journal of Electrical Power and Energy Systems Pub Date : 2024-07-04 DOI: 10.11648/j.epes.20241302.11

Dezhen Zhang, Ouyang Zhen, Wei Ma, Xiang Shen, Jinwei Lv, Yangxin Zou

{"title":"Modulation of Wide Voltage Range Interface DC-DC Converter in DC Distribution System","authors":"Dezhen Zhang, Ouyang Zhen, Wei Ma, Xiang Shen, Jinwei Lv, Yangxin Zou","doi":"10.11648/j.epes.20241302.11","DOIUrl":"https://doi.org/10.11648/j.epes.20241302.11","url":null,"abstract":"Bipolar DC distribution systems rely on various power sources like photovoltaics and distributed energy storage, each with its unique voltage characteristics. To accommodate these fluctuations, interface converters must adjust over a wide voltage range. The bipolar non-isolated DC-DC converter emerges as a promising solution due to its versatile modulation capabilities, reduced switch voltage stress, and cost-effectiveness. This article explores how wide voltage range regulation is achieved in bipolar DC-DC converters interfacing with bipolar DC power grids. It delves into the operational strategies and modulation techniques employed, ensuring stable output despite varying input voltages. Design considerations and challenges associated with implementing such converters are also discussed. An experimental platform was constructed to validate the proposed methodology. Through rigorous testing and analysis, the effectiveness of the topology's operation mode was confirmed. Real-world data from the experimental setup provided insights into the converter's performance under different operating conditions, supporting its applicability for bipolar DC distribution systems. In summary, this article provides a comprehensive examination of wide voltage range regulation in bipolar DC-DC converters, highlighting their potential to enhance efficiency and reliability in bipolar DC power grids. Through theoretical discussions and practical validation, it contributes to the advancement and adoption of these converters in modern energy systems.\u0000","PeriodicalId":125088,"journal":{"name":"American Journal of Electrical Power and Energy Systems","volume":" 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141677909","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

Switched-Capacitor Enhanced Circuits for Voltage-Boosting DC-DC Converters: Principles and Applications 用于升压型 DC-DC 转换器的开关电容器增强电路：原理与应用

American Journal of Electrical Power and Energy Systems Pub Date : 2024-02-21 DOI: 10.11648/j.epes.20241301.12

Yuanqing Pan, Dong Lv, Chuan Lu, Jiankan Lu

{"title":"Switched-Capacitor Enhanced Circuits for Voltage-Boosting DC-DC Converters: Principles and Applications","authors":"Yuanqing Pan, Dong Lv, Chuan Lu, Jiankan Lu","doi":"10.11648/j.epes.20241301.12","DOIUrl":"https://doi.org/10.11648/j.epes.20241301.12","url":null,"abstract":"With rapid advancement of DC-DC converter, the non-isolated dc-dc converters has caught much attention from academia and industry, owing to its advantages including low cost and compacted structure. Especially, the non-isolated dc-dc converters have taken the dominant position in topology design of power source. This paper introduces the concept of output section evolution in non-isolated dc-dc converters, with the aim of integrating high ratio voltage boosting capacity. To achieve this, a series of novel output enhanced circuits are proposed and discussed in detail. These circuits are structured using capacitors and diodes, making them applicable to various positive output dc-dc converters. Notably, the derived topologies in this paper eliminate the need for additional power switches and transformers. The effectiveness of the proposed approach is demonstrated through application cases based on both the classical boost converter and the developed voltage-lift SEPIC converters. These cases showcase the practical application and benefits of the proposed method. By following the topology construction method outlined in the paper, engineers can gain valuable insights and guidelines for designing circuits in the field of power electronics. Theoretical analysis has been verified in experimental prototype and the provided resources also serve as an educational tool for those studying power electronics engineering.","PeriodicalId":125088,"journal":{"name":"American Journal of Electrical Power and Energy Systems","volume":"252 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140443356","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

An Analysis of the Techno-Economic, Socio-Technical and Political Perspectives of Kenya’s Energy Transition 肯尼亚能源转型的技术经济、社会技术和政治视角分析

American Journal of Electrical Power and Energy Systems Pub Date : 2023-12-05 DOI: 10.11648/j.epes.20231205.12

Ladu David Morris Lemi

引用次数: 0

Impact Assessment of Optimal Integration of Combined DG and D-STATCOM Allocation for Active Distribution System Enhancement with Loading Variations 负荷变化下配电系统优化组合DG与D-STATCOM分配优化集成的影响评估

American Journal of Electrical Power and Energy Systems Pub Date : 2023-08-04 DOI: 10.11648/j.epes.20231204.12

M. Mustapha, Ganiyu Ayinde Bakare, Yau Shuaibu Haruna, Babagana Mallambe Mustapha, Musa Baba Lawan, Abdulkadir Abubakar Sadiq

引用次数: 0

Enhancement of Ready-Made Silicon Photovoltaic Panels’ Field Performance - a Review 提高现成硅光伏板的现场性能综述

American Journal of Electrical Power and Energy Systems Pub Date : 2023-07-21 DOI: 10.11648/j.epes.20231204.11

Divine Khan Ngwashi, P. Tsafack

引用次数: 0

Structural Optimization of External Rotor Permanent Magnet Motor Based on Halbach Magnetization 基于Halbach磁化的外转子永磁电机结构优化

American Journal of Electrical Power and Energy Systems Pub Date : 2023-07-06 DOI: 10.11648/j.epes.20231203.12

Zhiyuan Ren, Tianyun Liu

引用次数: 0

Effective Power Restoration in the National Grid, Using Interconnected System (Neural Network Intelligence): A Review of the Nigerian Grid System 利用互联系统(神经网络智能)实现国家电网的有效电力恢复:尼日利亚电网系统综述

American Journal of Electrical Power and Energy Systems Pub Date : 2023-06-27 DOI: 10.11648/j.epes.20231203.11

Uchegbu Chinenye Eberechi, Inyama Kelechi, Kalu Peace Onyekachi

引用次数: 0

Adaptive LMS MPPT Controller and Adaptive Inverter Control Law to Control the Solar Photovoltaic System 控制太阳能光伏系统的自适应 LMS MPPT 控制器和自适应逆变器控制法

American Journal of Electrical Power and Energy Systems Pub Date : 2023-06-05 DOI: 10.11648/j.epes.20231202.12

Nalini Karchi, Deepak Kulkarni

引用次数: 0

AHREPS - Alternating Hybrid Renewable Energy Power System for Load Prioritization: A Case Study of Otokwu-Mmaku Community, Awgu, Enugu State, Nigeria AHREPS -负荷优先的交替混合可再生能源电力系统:以尼日利亚埃努古州奥古奥托库-姆马库社区为例

American Journal of Electrical Power and Energy Systems Pub Date : 2023-05-10 DOI: 10.11648/j.epes.20231202.11

Anikpo Chukwuka Ekene, Ogbonna Bartholomew Odinaka

引用次数: 0