Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991278
M. Akorede, J. J. Fatigun, J. A. Opaluwa, E. Pouresmaeil
The aim of this work is to design and develop a control system using SMS and WiFi technology to remotely control the outdoor security lights in large organisations. The device comprises four main units, namely: the mobile phone or a computer system, the GSM modem, the switching unit and the WiFi module. One feature that makes the developed system better than other related existing works is its ability to use two means of control. It makes use of WiFi when the operator is within the coverage area of the network of about 100 metres to the device, at no cost, otherwise it uses SMS containing certain codes to control the lamps. A SIM card is placed in the GSM modem and SMS from the transmitter are sent to that mobile number. The module is also constantly being monitored by the microcontroller unit, which in turn processes the information, extracts the message and command from the GSM modem and WiFi module respectively and then acts accordingly. Owing to its simplicity, C programming is used to programme the microcontroller. The developed device when tested with three lighting points operating on 230V power supply, gives an impressive performance with both SMS and WiFi technology. The benefit of this work is in its low-cost real-life practical application.
{"title":"Efficient remote control system using SMS and WiFi technology for outdoor security lighting applications","authors":"M. Akorede, J. J. Fatigun, J. A. Opaluwa, E. Pouresmaeil","doi":"10.1109/POWERAFRICA.2017.7991278","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991278","url":null,"abstract":"The aim of this work is to design and develop a control system using SMS and WiFi technology to remotely control the outdoor security lights in large organisations. The device comprises four main units, namely: the mobile phone or a computer system, the GSM modem, the switching unit and the WiFi module. One feature that makes the developed system better than other related existing works is its ability to use two means of control. It makes use of WiFi when the operator is within the coverage area of the network of about 100 metres to the device, at no cost, otherwise it uses SMS containing certain codes to control the lamps. A SIM card is placed in the GSM modem and SMS from the transmitter are sent to that mobile number. The module is also constantly being monitored by the microcontroller unit, which in turn processes the information, extracts the message and command from the GSM modem and WiFi module respectively and then acts accordingly. Owing to its simplicity, C programming is used to programme the microcontroller. The developed device when tested with three lighting points operating on 230V power supply, gives an impressive performance with both SMS and WiFi technology. The benefit of this work is in its low-cost real-life practical application.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"9 1","pages":"512-517"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86601286","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}
Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991216
A. Ogunjuyigbe, T. Ayodele, V. E. Idika, O. Ojo
The increased use of non-linear loads such as lighting technologies (bulbs) has led to power quality variation of distribution networks. In recent times, different lighting technologies are finding their ways into the market. As such, it is paramount to evaluate the performance characteristics of these lighting technologies and the possible effects they might have on the power network. In this paper, three lamp technologies i.e. Light Emitting Diode (LED) lamps, Incandescent Lamps (IC) and Compact-fluorescent lamps (CFL) are analysed to check the impact of their usage on the power quality of a distribution system through a laboratory experiment. The result revealed that the LED lamps offer the highest savings in energy consumption compared to CFLs and ICs. However, they (LED lamps) constitute the highest harmonic pollution in comparison to the other lamps. From the study, it seems no single lamp is preferable when considering energy saving and power quality at the same time. The choice would have to depend on which of metrics is under consideration. In cases where power quality issues is of prime importance, traditional incandescent lamps are the most preferred, on the other hand when energy conservation is the focus, the LED lamps are the most favourable. CFLs offer moderate energy savings and produce fewer harmonics compared to the LED.
{"title":"Effect of lamp technologies on the power quality of electrical distribution network","authors":"A. Ogunjuyigbe, T. Ayodele, V. E. Idika, O. Ojo","doi":"10.1109/POWERAFRICA.2017.7991216","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991216","url":null,"abstract":"The increased use of non-linear loads such as lighting technologies (bulbs) has led to power quality variation of distribution networks. In recent times, different lighting technologies are finding their ways into the market. As such, it is paramount to evaluate the performance characteristics of these lighting technologies and the possible effects they might have on the power network. In this paper, three lamp technologies i.e. Light Emitting Diode (LED) lamps, Incandescent Lamps (IC) and Compact-fluorescent lamps (CFL) are analysed to check the impact of their usage on the power quality of a distribution system through a laboratory experiment. The result revealed that the LED lamps offer the highest savings in energy consumption compared to CFLs and ICs. However, they (LED lamps) constitute the highest harmonic pollution in comparison to the other lamps. From the study, it seems no single lamp is preferable when considering energy saving and power quality at the same time. The choice would have to depend on which of metrics is under consideration. In cases where power quality issues is of prime importance, traditional incandescent lamps are the most preferred, on the other hand when energy conservation is the focus, the LED lamps are the most favourable. CFLs offer moderate energy savings and produce fewer harmonics compared to the LED.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"43 1","pages":"159-163"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91532833","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}
Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991292
Isaac Kofi Otchere, D. O. Ampofo, E. Frimpong
This paper presents an adaptive discrete wavelet transform (DWT) based genetic algorithm (GA) technique for automatic generation control (AGC) systems. The controller ensures a zero steady state error for frequency deviation, mitigates inter area oscillations between interconnected power system and damps out noise from the Area Control Error (ACE) signal. The non-orthogonal DWT with GA optimization technique is employed to determine the optimal gains of the proposed DWT based controller. The performance of the proposed controller was evaluated by applying it to a known two-area interconnected system. The Load frequency model was also subjected to noise/disturbance to validate the robustness of the proposed DWT-GA based controller. Integral square error (ISE) and signal integrity (SI) indices were the performance indices used. Test results show an enhanced performance with less settling time, overshoot and zero frequency deviation after a load disturbance.
{"title":"Adaptive discrete wavelet transform based technique for load frequency control","authors":"Isaac Kofi Otchere, D. O. Ampofo, E. Frimpong","doi":"10.1109/POWERAFRICA.2017.7991292","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991292","url":null,"abstract":"This paper presents an adaptive discrete wavelet transform (DWT) based genetic algorithm (GA) technique for automatic generation control (AGC) systems. The controller ensures a zero steady state error for frequency deviation, mitigates inter area oscillations between interconnected power system and damps out noise from the Area Control Error (ACE) signal. The non-orthogonal DWT with GA optimization technique is employed to determine the optimal gains of the proposed DWT based controller. The performance of the proposed controller was evaluated by applying it to a known two-area interconnected system. The Load frequency model was also subjected to noise/disturbance to validate the robustness of the proposed DWT-GA based controller. Integral square error (ISE) and signal integrity (SI) indices were the performance indices used. Test results show an enhanced performance with less settling time, overshoot and zero frequency deviation after a load disturbance.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"64 1","pages":"589-594"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83940555","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}
Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991225
S. Sewchurran, I. Davidson, O. Ojo
Historically, Eskom South Africa produced the cheapest electricity in the world, but this position has changed over the last decade due to several factors, such as constraints in building new generation plants within the country. This has led to under frequency load shedding and the doubling of electricity prices in the country. With the ongoing electricity price increases, connection of small scale embedded/distributed generation on the local electricity distribution networks is becoming an increasingly attractive prospect in South Africa. However, customers need to accurately calculate the payback period of their rooftop solar PV prior to installing these systems. This paper discusses a method for evaluating the potential annual output of a rooftop solar PV system and provides a derivation for evaluating the accurate payback period of a rooftop PV system. EThekwini Municipality network was utilized as a case study example.
{"title":"Drivers, barriers and a method for evaluating the feasibility of residential rooftop solar PV in Durban (Part 1)","authors":"S. Sewchurran, I. Davidson, O. Ojo","doi":"10.1109/POWERAFRICA.2017.7991225","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991225","url":null,"abstract":"Historically, Eskom South Africa produced the cheapest electricity in the world, but this position has changed over the last decade due to several factors, such as constraints in building new generation plants within the country. This has led to under frequency load shedding and the doubling of electricity prices in the country. With the ongoing electricity price increases, connection of small scale embedded/distributed generation on the local electricity distribution networks is becoming an increasingly attractive prospect in South Africa. However, customers need to accurately calculate the payback period of their rooftop solar PV prior to installing these systems. This paper discusses a method for evaluating the potential annual output of a rooftop solar PV system and provides a derivation for evaluating the accurate payback period of a rooftop PV system. EThekwini Municipality network was utilized as a case study example.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"19 1","pages":"208-213"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90146030","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}
Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991203
D. Mabuggwe, T. Matlokotsi, S. Chowdhury
Power system restoration continues to be a major challenge for many power systems in sub-Saharan Africa. Hydropower generation also remains as one of the major sources of power in this region. However, many power systems supported by hydropower generation in this region suffer from frequent power system blackouts, which have detrimental implications on the power system and its users. This paper focuses on systematic restoration strategies and studies of blackouts to aid the development of an effective restoration scheme for a Ugandan power system using the available hydro, thermal and co-generation. This scheme is required to operate for different blackout scenarios that have been imposed on the power system, using hydro, thermal and co-generation. Two blackout scenarios were imposed on the Ugandan test system to initiate the design of the scheme. The testing of the proposed scheme and validation of its effectiveness are done on DIgSILENT PowerFactory 15.2 through simulations of the case studies.
{"title":"Development of an effective restoration scheme for a Ugandan power system using hydro, thermal and co-generation","authors":"D. Mabuggwe, T. Matlokotsi, S. Chowdhury","doi":"10.1109/POWERAFRICA.2017.7991203","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991203","url":null,"abstract":"Power system restoration continues to be a major challenge for many power systems in sub-Saharan Africa. Hydropower generation also remains as one of the major sources of power in this region. However, many power systems supported by hydropower generation in this region suffer from frequent power system blackouts, which have detrimental implications on the power system and its users. This paper focuses on systematic restoration strategies and studies of blackouts to aid the development of an effective restoration scheme for a Ugandan power system using the available hydro, thermal and co-generation. This scheme is required to operate for different blackout scenarios that have been imposed on the power system, using hydro, thermal and co-generation. Two blackout scenarios were imposed on the Ugandan test system to initiate the design of the scheme. The testing of the proposed scheme and validation of its effectiveness are done on DIgSILENT PowerFactory 15.2 through simulations of the case studies.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"23 1","pages":"81-87"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83277807","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}
Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991243
O. Babayomi, P. Oluseyi, N. Ofodile, Godbless Keku
The use of fuzzy and adaptive neuro-fuzzy technique for fault detection, classification and location is presented in this study. Ten different types of electrical faults in a transmission line were investigated. The results obtained show that a high degree of accuracy was recorded for detection, classification and location of electrical faults in the extra-high voltage line. Ongoing studies on the subject are expected to further improve levels of accuracy in fault classification and location especially.
{"title":"Fault diagnosis in an extra-high voltage power line","authors":"O. Babayomi, P. Oluseyi, N. Ofodile, Godbless Keku","doi":"10.1109/POWERAFRICA.2017.7991243","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991243","url":null,"abstract":"The use of fuzzy and adaptive neuro-fuzzy technique for fault detection, classification and location is presented in this study. Ten different types of electrical faults in a transmission line were investigated. The results obtained show that a high degree of accuracy was recorded for detection, classification and location of electrical faults in the extra-high voltage line. Ongoing studies on the subject are expected to further improve levels of accuracy in fault classification and location especially.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"59 1","pages":"311-316"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91068184","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}
Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991208
Shaibu Mludi, I. Davidson
Synchronous generators are interconnected into the regional power transmission network to improve reliability, enhance the security of supply, trade of electricity and share the available natural resources for energy fuel supply. The interconnected power system experiences disturbances due to load variations and faults and causes stress on the generators to control and remain in synchronism. The study has analyzed the natural damping oscillations emanating from a change of load and disturbance in the interconnected power system of a modelled SAPP network. The SAPP grid was modelled in DigSilent Powerfactory and used electromagnet transient and modal analysis tools to simulate the behavior of rotor angle and frequency in relation to speed in the interconnected synchronous generators. The simulated results indicated that frequency deviated due to load change and faults. It affected also the behavior of the rotor angle requiring to re-tune its control system and provide real time monitoring instruments.
{"title":"Dynamic analysis of Southern Africa power pool (SAPP) network","authors":"Shaibu Mludi, I. Davidson","doi":"10.1109/POWERAFRICA.2017.7991208","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991208","url":null,"abstract":"Synchronous generators are interconnected into the regional power transmission network to improve reliability, enhance the security of supply, trade of electricity and share the available natural resources for energy fuel supply. The interconnected power system experiences disturbances due to load variations and faults and causes stress on the generators to control and remain in synchronism. The study has analyzed the natural damping oscillations emanating from a change of load and disturbance in the interconnected power system of a modelled SAPP network. The SAPP grid was modelled in DigSilent Powerfactory and used electromagnet transient and modal analysis tools to simulate the behavior of rotor angle and frequency in relation to speed in the interconnected synchronous generators. The simulated results indicated that frequency deviated due to load change and faults. It affected also the behavior of the rotor angle requiring to re-tune its control system and provide real time monitoring instruments.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"19 1","pages":"109-114"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73014932","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}
Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991237
M. Hijjo, Felix Felgner, Georg Frey
The need for designing self-sufficient microgrids to lessen the serious consequences due to power lack is obvious. This work proposes a systematic method to select the optimal components of a grid-connected microgrid subject to severe power outages. The microgrid is composed of photovoltaic panels (PV) and energy storage units in addition to the existing diesel generator. This work attempts to maximize the net returns of renewable energy resources (RES) by increasing the percentage of their utilization and penetration as well. In addition, it compromises between the expected running costs — resulted by fuel consumption and energy purchased from the grid — and the investment of adding new components. Besides, it defines a rule-based energy management (EM) strategy which will serve as a kernel of the EM system. Rather than taking the parameters of the system components as the only decision variables, two crucial operational variables are also optimized. The problem is formulated as a mixed-integer programming and solved by genetic algorithms (GA). Furthermore, the net present value (NPV) of the proposed system is investigated over 20 years to assess the economic efficiency. A part of a hospital load in Gaza Strip is used to verify the effectiveness of the proposed approach.
{"title":"FV-battery-diesel microgrid design for buildings subject to severe power outages","authors":"M. Hijjo, Felix Felgner, Georg Frey","doi":"10.1109/POWERAFRICA.2017.7991237","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991237","url":null,"abstract":"The need for designing self-sufficient microgrids to lessen the serious consequences due to power lack is obvious. This work proposes a systematic method to select the optimal components of a grid-connected microgrid subject to severe power outages. The microgrid is composed of photovoltaic panels (PV) and energy storage units in addition to the existing diesel generator. This work attempts to maximize the net returns of renewable energy resources (RES) by increasing the percentage of their utilization and penetration as well. In addition, it compromises between the expected running costs — resulted by fuel consumption and energy purchased from the grid — and the investment of adding new components. Besides, it defines a rule-based energy management (EM) strategy which will serve as a kernel of the EM system. Rather than taking the parameters of the system components as the only decision variables, two crucial operational variables are also optimized. The problem is formulated as a mixed-integer programming and solved by genetic algorithms (GA). Furthermore, the net present value (NPV) of the proposed system is investigated over 20 years to assess the economic efficiency. A part of a hospital load in Gaza Strip is used to verify the effectiveness of the proposed approach.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"20 1","pages":"280-285"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85802084","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}
Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991250
W. Banuenumah, F. Sekyere, K. A. Dotche
The paper reported a field survey that sought to examine the technical implications in the adoption of a Global System for Mobile communication GSM-based metering system in the New Juaben Municipality. Both simple random sampling and interview guide methods were used. The issues considered under the study were; understanding of a GSM-based metre reading, mobile phone penetration among consumers, reliability of mobile network services, and security of the central monitoring system over hacking including whether compound housing system of consumers may pose a challenge to the adoption of GSM-based metre system in the Municipality. The respondents disagreed and strongly disagreed that compound housing system may pose a challenge to the adoption of GSM-based metres. Thus, the respondents perceived that the mode of managing electromechanical metres in compound houses would be used to manage GSM-based metres.
{"title":"Field survey of smart metering implementation using a simple random method: A case study of New Juaben Municipality in Ghana","authors":"W. Banuenumah, F. Sekyere, K. A. Dotche","doi":"10.1109/POWERAFRICA.2017.7991250","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991250","url":null,"abstract":"The paper reported a field survey that sought to examine the technical implications in the adoption of a Global System for Mobile communication GSM-based metering system in the New Juaben Municipality. Both simple random sampling and interview guide methods were used. The issues considered under the study were; understanding of a GSM-based metre reading, mobile phone penetration among consumers, reliability of mobile network services, and security of the central monitoring system over hacking including whether compound housing system of consumers may pose a challenge to the adoption of GSM-based metre system in the Municipality. The respondents disagreed and strongly disagreed that compound housing system may pose a challenge to the adoption of GSM-based metres. Thus, the respondents perceived that the mode of managing electromechanical metres in compound houses would be used to manage GSM-based metres.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"68 1","pages":"352-357"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90356710","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}
Pub Date : 2017-06-01DOI: 10.1109/POWERAFRICA.2017.7991295
O. Apata, D. Oyedokun
This paper discusses the currently used generator systems in wind energy conversion systems and some of the newer concepts with their technical features. The Brushless doubly fed induction generator, Brushless doubly fed reluctance generator and the Switched reluctance generator are viable alternatives for wind power applications. This paper also highlights the hybrid wind generator solutions which is an emerging trend in hybrid renewable energy solutions. Using the appropriate control techniques, these generator technologies unlike the conventional wind turbine generator can produce constant wind power irrespective of the changes in velocity of wind speed. This has tremendous application in Africa as the installed capacity increases and the need to provide remote communities with electricity remains paramount. The merits and demerits of the various technologies are uniquely grouped in a novel way to aid decision making based on available resources.
{"title":"Wind turbine generators: Conventional and emerging technologies","authors":"O. Apata, D. Oyedokun","doi":"10.1109/POWERAFRICA.2017.7991295","DOIUrl":"https://doi.org/10.1109/POWERAFRICA.2017.7991295","url":null,"abstract":"This paper discusses the currently used generator systems in wind energy conversion systems and some of the newer concepts with their technical features. The Brushless doubly fed induction generator, Brushless doubly fed reluctance generator and the Switched reluctance generator are viable alternatives for wind power applications. This paper also highlights the hybrid wind generator solutions which is an emerging trend in hybrid renewable energy solutions. Using the appropriate control techniques, these generator technologies unlike the conventional wind turbine generator can produce constant wind power irrespective of the changes in velocity of wind speed. This has tremendous application in Africa as the installed capacity increases and the need to provide remote communities with electricity remains paramount. The merits and demerits of the various technologies are uniquely grouped in a novel way to aid decision making based on available resources.","PeriodicalId":6601,"journal":{"name":"2017 IEEE PES PowerAfrica","volume":"21 1","pages":"606-611"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88149132","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}
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