2019 IEEE PES/IAS PowerAfrica最新文献_第4页

A Comparative Study of Different Local Reactive Power Control Methods of Distributed Generation in Ghana 加纳分布式发电不同局部无功控制方法的比较研究

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/PowerAfrica.2019.8928779

D. O. Ampofo, J. Myrzik

引用次数: 4

Comparative study on Improvement in Battery Management System of Hybrid Batteries 混合动力电池管理系统改进的比较研究

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/PowerAfrica.2019.8928868

M. J. Malatji, S. Chowdhury

引用次数: 2

Minimizing the Impact of Intermittent Wind Power and Maximizing its Yield on Power System Operation 最小化间歇性风力发电对电力系统运行的影响并最大化其发电量

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/PowerAfrica.2019.8928873

Ali Hassan, Y. Hamam, J. Munda

引用次数: 0

Artificial Neural Network Approach for the Integration of Renewable Energy in Telecommunication Systems 电信系统中可再生能源集成的人工神经网络方法

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/PowerAfrica.2019.8928774

K. A. Dotche, Adekunlé Akim Salami, K. M. Kodjo, F. Sekyere, K. Bedja

引用次数: 2

Investigation of the Impact of Grid-integrated Distributed Generation on MV Network Voltage using Load Flow Sensitivities 利用潮流敏感性研究并网分布式发电对中压网络电压的影响

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/PowerAfrica.2019.8928769

I. Molver, S. Chowdhury

{"title":"Investigation of the Impact of Grid-integrated Distributed Generation on MV Network Voltage using Load Flow Sensitivities","authors":"I. Molver, S. Chowdhury","doi":"10.1109/PowerAfrica.2019.8928769","DOIUrl":"https://doi.org/10.1109/PowerAfrica.2019.8928769","url":null,"abstract":"DIgSILENT Powerfactory’s Load Flow Sensitivities (ComVstab) command performs a static voltage sensitivity analysis based on the linearization of the system around the operational point. Load flow sensitivity parameters dV/dP and dV/dQ on Powerfactory 2017 can be used to determine the change in voltage on a feeder resulting from a change in active or reactive power at a point. This paper will analyze the effectiveness of using Load Flow Sensitivities (LFS) technique for analyzing the impact of DG on the voltage of MV networks and assess impact of voltage magnitude/variation on shunt capacitors and other network devices. The performance of LFS is analyzed under varying peak load conditions and varying load distributions. The impact of DG on network voltage where the injected power from DG is not equal to 1 MW or 1 MVAr is assessed using linear extrapolation. This is an assumption where the accuracy is compared to simulated results. Using linear extrapolation the LFS technique can also be used to estimate the hosting capacity at a point on a network. These combined studies determine the applicability of using the Powerfactory command, LFS, to perform simulations faster.","PeriodicalId":308661,"journal":{"name":"2019 IEEE PES/IAS PowerAfrica","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131841542","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: 3

PowerAfrica 2019 Author Index PowerAfrica 2019作者索引

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/powerafrica.2019.8928662

引用次数: 0

Feedback–Feedforward Compensation of a DC Motor 直流电机的前馈-反馈补偿

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/PowerAfrica.2019.8928655

Ihechiluru Okor

{"title":"Feedback–Feedforward Compensation of a DC Motor","authors":"Ihechiluru Okor","doi":"10.1109/PowerAfrica.2019.8928655","DOIUrl":"https://doi.org/10.1109/PowerAfrica.2019.8928655","url":null,"abstract":"The separately-excited DC motor is a high-performance variable speed drive vital for industrial applications such as robotics, actuation, control and guided manipulation because of its precision, simplicity, continuous control feature and wide speed range. Hence there is need to regulate and drive the motor at desired speed in the presence of parameter variations, model uncertainties and external disturbances. The ubiquitous Proportional-Integral-Derivative controller is not the optimal control strategy to achieve this objective because of its oscillatory response, and sensitivity to load disturbances and motor parameter variations. Hence this paper proposes a Feedforward – Feedback control scheme, for armature voltage speed control, that will permit the design of two distinct control objectives; that is setpoint tracking with acceptable robustness and disturbance rejection. This combined scheme ensures high performance for the DC motor speed where the model-based tuned feedback action is used to guarantee reference speed tracking and to compensate for conceivable model inaccuracies while feedforward compensation maintains the output speed at the setpoint in spite of arbitrary changes in the disturbance variable. Computer simulations are then presented to show the effectiveness of the proposed scheme.","PeriodicalId":308661,"journal":{"name":"2019 IEEE PES/IAS PowerAfrica","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132261324","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: 2

Understanding the North American Electrical Codes for Global Adoption in Reducing Electrical Injuries and Fatalities 了解北美电气规范，以便全球采用以减少电气伤害和死亡

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/PowerAfrica.2019.8928771

J. Nelson, Julia Redmond

引用次数: 1

Wind Speed Prediction Based on Support Vector Regression Method: a Case Study of Lome-Site 基于支持向量回归方法的风速预测——以lome站点为例

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/PowerAfrica.2019.8928724

K. A. Dotche, Adekunlé Akim Salami, K. M. Kodjo, Hadnane Ouro-Agbake, K. Bedja

引用次数: 1

Towards Cooperative Power Pooling for Heterogeneous Load Clusters 面向异构负载集群的协同电力池

2019 IEEE PES/IAS PowerAfrica Pub Date : 2019-08-01 DOI: 10.1109/PowerAfrica.2019.8928921

R. Opara, D. Dike, K C OKAFOR, G. Chukwudebe, R. Onoshakpor

{"title":"Towards Cooperative Power Pooling for Heterogeneous Load Clusters","authors":"R. Opara, D. Dike, K C OKAFOR, G. Chukwudebe, R. Onoshakpor","doi":"10.1109/PowerAfrica.2019.8928921","DOIUrl":"https://doi.org/10.1109/PowerAfrica.2019.8928921","url":null,"abstract":"In this paper, cooperative power management (CPM) for heterogeneous load clusters is presented. Load flow (LF) and continuation power flow (CPF) characterization are introduced to describe the behavior of the network in static form. The essence is to guide on size of generator to consider and to determine excess power remaining without collapsing the network after meeting satisfactory supply demand to the cooperative members. The considered entities of the proposed cooperative power pooling system (CPPS) include: (i) electricity consumer cooperatives, (ii) CPPS criteria (iii) load flow model iv) continuation power flow (CPF); (v) power dispatch model and costing (PDMC), (vi) consumer cooperative with pool of generators model, vii) consumer cooperative with purchase of central generator, (viii) Algorithm for the pool of generator and the consumer cooperative (with pool of generators) and willing to sell out excess power model (CWSPM). These are employed in modeling demand response needed to tackle price distribution of the network using metering system. Consequently, the system provides fairness on charges based on load consumed while managing the members effectively.","PeriodicalId":308661,"journal":{"name":"2019 IEEE PES/IAS PowerAfrica","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132983865","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: 1