Pub Date : 2008-12-16DOI: 10.1109/UPEC.2008.4651635
D. Desideri, A. Maschio, E. Poli
A conductive sphere is proposed as simple model for the evaluation of the human exposure to electric fields under an overhead medium voltage power line. The study is performed on the sphere (on the top and on the horizontal equatorial circumference), with reference to an overhead line supported by reinforced concrete poles, with a pole-top-pin arrangement. A numerical analysis compares the results relative to this simple model with those of a more complete one of the human body. An experimental validation of the numerical analysis is reported. The human exposure under the line is finally discussed, in particular near to and far from a pole.
{"title":"Human exposure to electric fields under an overhead MV power line","authors":"D. Desideri, A. Maschio, E. Poli","doi":"10.1109/UPEC.2008.4651635","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651635","url":null,"abstract":"A conductive sphere is proposed as simple model for the evaluation of the human exposure to electric fields under an overhead medium voltage power line. The study is performed on the sphere (on the top and on the horizontal equatorial circumference), with reference to an overhead line supported by reinforced concrete poles, with a pole-top-pin arrangement. A numerical analysis compares the results relative to this simple model with those of a more complete one of the human body. An experimental validation of the numerical analysis is reported. The human exposure under the line is finally discussed, in particular near to and far from a pole.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133191618","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 : 2008-12-16DOI: 10.1109/UPEC.2008.4651597
M.R. Wadi, M. Bara, O. Carlson, F.A. Elammari
Voltage stability has been of increasing importance in facing the rising risks of voltage collapses or system blackouts, and in trying to improve systems power quality, particularly in the relatively small and fast growing interconnected power systems of developing regions. This paper describes and identifies the recorded voltage fluctuations leading to some voltage collapses in the South-West Libyan electric power system, as a first step of handling this problem.
{"title":"Voltage stability analysis and improvement for the South-West Libya electrical power system part 1: Problem identification","authors":"M.R. Wadi, M. Bara, O. Carlson, F.A. Elammari","doi":"10.1109/UPEC.2008.4651597","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651597","url":null,"abstract":"Voltage stability has been of increasing importance in facing the rising risks of voltage collapses or system blackouts, and in trying to improve systems power quality, particularly in the relatively small and fast growing interconnected power systems of developing regions. This paper describes and identifies the recorded voltage fluctuations leading to some voltage collapses in the South-West Libyan electric power system, as a first step of handling this problem.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"244 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134273846","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 : 2008-12-16DOI: 10.1109/UPEC.2008.4651660
Mostafa Sedighizadeh, M. Khatibi, M. T. Keshavarzi
Semiconductor rectifier transformers, which supply DC load currents, always deal with harmonic problems since the rectifier circuit connected to their secondary windings generates harmonic currents. These harmonic currents play a vital role in accurate designing of such transformers. As it is often impossible to model the transformer and the rectifier together during design process, design engineers do appropriate calculations based on sinusoidal normal operation of the transformer and finally add some correctional factors according to the excising standards to consider the harmonic conditions. This is practically time consuming and there is a high risk of various mistakes. It is the purpose of this paper to make a database including 11 types of rectifier circuits, frequently used for industrial purposes, and to develop a simulating software for design considerations on semiconductor rectifier transformers. In the developed software, the transformer and the chosen rectifier circuit are simulated simultaneously, their harmonic analysis is done, and next, the transformer parameters are designed based on the extracted harmonic spectrum and their effects on transformers. Finally, an example of IEEE Standard No.C57.18.10.1998 is calculated by means of the developed software as a case study. Comparing the results obtained here with those given in the standard, obviously proves the capabilities of this software.
{"title":"An algorithm for design considerations on semiconductor rectifier transformers","authors":"Mostafa Sedighizadeh, M. Khatibi, M. T. Keshavarzi","doi":"10.1109/UPEC.2008.4651660","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651660","url":null,"abstract":"Semiconductor rectifier transformers, which supply DC load currents, always deal with harmonic problems since the rectifier circuit connected to their secondary windings generates harmonic currents. These harmonic currents play a vital role in accurate designing of such transformers. As it is often impossible to model the transformer and the rectifier together during design process, design engineers do appropriate calculations based on sinusoidal normal operation of the transformer and finally add some correctional factors according to the excising standards to consider the harmonic conditions. This is practically time consuming and there is a high risk of various mistakes. It is the purpose of this paper to make a database including 11 types of rectifier circuits, frequently used for industrial purposes, and to develop a simulating software for design considerations on semiconductor rectifier transformers. In the developed software, the transformer and the chosen rectifier circuit are simulated simultaneously, their harmonic analysis is done, and next, the transformer parameters are designed based on the extracted harmonic spectrum and their effects on transformers. Finally, an example of IEEE Standard No.C57.18.10.1998 is calculated by means of the developed software as a case study. Comparing the results obtained here with those given in the standard, obviously proves the capabilities of this software.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134538659","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 : 2008-12-16DOI: 10.1109/UPEC.2008.4651579
H. Karimi-Davijani, A. Sheikholeslami, R. Ahmadi, H. Livani
This paper presents dynamic modeling and simulation of a doubly fed induction generator (DFIG) wind turbine based on space vector pulse width modulation (SVPWM) converter. SVPWM is applied to partial scale power electronic converters as grid side and rotor side converter. All power and control units are performed in PSCAD/EMTDC software. Dynamic response in grid connected mode for variable speed wind operation and abnormal condition as a short circuit fault are investigated. Simulation results prove, decouple control of active and reactive power of DFIG using SVPWM converter enhances system response and power quality of wind turbine.
{"title":"Active and reactive power control of DFIG using SVPWM converter","authors":"H. Karimi-Davijani, A. Sheikholeslami, R. Ahmadi, H. Livani","doi":"10.1109/UPEC.2008.4651579","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651579","url":null,"abstract":"This paper presents dynamic modeling and simulation of a doubly fed induction generator (DFIG) wind turbine based on space vector pulse width modulation (SVPWM) converter. SVPWM is applied to partial scale power electronic converters as grid side and rotor side converter. All power and control units are performed in PSCAD/EMTDC software. Dynamic response in grid connected mode for variable speed wind operation and abnormal condition as a short circuit fault are investigated. Simulation results prove, decouple control of active and reactive power of DFIG using SVPWM converter enhances system response and power quality of wind turbine.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134614670","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 : 2008-12-16DOI: 10.1109/UPEC.2008.4651454
K. Kawahara, S. Yoshimoto
This paper presents a formulation of outage planning for electric power facilities treated as a combinatorial optimization problem considering power supply reliability. We utilize two indices to evaluate a security level of system configurations during outage works. The indices are defined as power supply shortage assuming N-2 contingencies and transmission loss assuming N-1 contingencies. A lot of constraints are also introduced to this problem with respect to the allocation of outage works and the determination of system configurations. Since it is expected that solving the problem is so hard due to combinatorial explosions, we apply a genetic algorithm to obtain feasible solutions. Simulation is executed to the real test system which is a part of the 110 kV transmission system belonging to Chugoku Electric Power Company (CEPCO). It seems that some results show good solutions from the viewpoint of reliability indices. However, it is not clear how far these solutions are close to the optimal ones. In order to confirm the quality of solutions, we develop a program for searching all outage work combinations on the PC cluster constructed with 5 computers. As a result, the solutions by GA show us midway between the optimum and the worst.
{"title":"A study on outage planning for electric power facilities by using GAs","authors":"K. Kawahara, S. Yoshimoto","doi":"10.1109/UPEC.2008.4651454","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651454","url":null,"abstract":"This paper presents a formulation of outage planning for electric power facilities treated as a combinatorial optimization problem considering power supply reliability. We utilize two indices to evaluate a security level of system configurations during outage works. The indices are defined as power supply shortage assuming N-2 contingencies and transmission loss assuming N-1 contingencies. A lot of constraints are also introduced to this problem with respect to the allocation of outage works and the determination of system configurations. Since it is expected that solving the problem is so hard due to combinatorial explosions, we apply a genetic algorithm to obtain feasible solutions. Simulation is executed to the real test system which is a part of the 110 kV transmission system belonging to Chugoku Electric Power Company (CEPCO). It seems that some results show good solutions from the viewpoint of reliability indices. However, it is not clear how far these solutions are close to the optimal ones. In order to confirm the quality of solutions, we develop a program for searching all outage work combinations on the PC cluster constructed with 5 computers. As a result, the solutions by GA show us midway between the optimum and the worst.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134620232","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 : 2008-12-16DOI: 10.1109/UPEC.2008.4651601
S. Nikolovski, Z. Klaić, Z. Kraus, G. Slipac
The Faculty of Electrical Engineering in Osijek and HEP d.d. - Croatian Grid Company are partners in the EU project Leonardo Power Quality Initiative (LPQI). One part of activities carried out within that project includes measuring, analyzing and statistical data processing of power quality indices. This paper presents the result of online power quality indices monitoring at HEP Distribution System Operator in TS 110/35 kV Osijek 2 at the secondary side on one of two transformers which supply the urban cable network in the city of Osijek. Power quality indices were measured with a three phase power quality network analyzer QWave Power CO. Voltage events were classified according to the EN 50160 and IEEE 1159-1995, and RMS variation performance indices were calculated.
奥西耶克电气工程学院和HEP博士-克罗地亚电网公司是欧盟项目莱昂纳多电力质量倡议(LPQI)的合作伙伴。在该项目内进行的活动的一部分包括测量、分析和统计数据处理电能质量指数。本文介绍了在奥西耶克市为城市电缆网供电的两台变压器中的一台上，在奥西耶克市的ts110 / 35kv奥西耶克2次侧，HEP配电系统运营商在线监测电能质量指标的结果。采用三相电能质量网络分析仪QWave Power CO.测量电能质量指标，按照en50160和IEEE 1159-1995标准对电压事件进行分类，计算均方根变化性能指标。
{"title":"Online power quality measurements and voltage sags analysis","authors":"S. Nikolovski, Z. Klaić, Z. Kraus, G. Slipac","doi":"10.1109/UPEC.2008.4651601","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651601","url":null,"abstract":"The Faculty of Electrical Engineering in Osijek and HEP d.d. - Croatian Grid Company are partners in the EU project Leonardo Power Quality Initiative (LPQI). One part of activities carried out within that project includes measuring, analyzing and statistical data processing of power quality indices. This paper presents the result of online power quality indices monitoring at HEP Distribution System Operator in TS 110/35 kV Osijek 2 at the secondary side on one of two transformers which supply the urban cable network in the city of Osijek. Power quality indices were measured with a three phase power quality network analyzer QWave Power CO. Voltage events were classified according to the EN 50160 and IEEE 1159-1995, and RMS variation performance indices were calculated.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134040842","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 : 2008-12-16DOI: 10.1109/UPEC.2008.4651470
M. El-werfelli, J. Brooks, R. Dunn
This paper presents a novel optimization technique for determining the setting of various emergency power system controls. This will allow for the production of a comprehensive defence plan, against events such as cascading blackouts. The goal of this technique is to retrieve a new equilibrium operation point following a severe contingency. In the proposed optimization technique described in this paper the generator tripping, load shedding and islanding are considered as the main emergency control actions. Genetic Algorithm approaches are very successful at solving nonlinear combinatorial optimization problems; these have been applied in this work to produce an optimized defence plan. A Genetic Algorithm approach is used to find the optimal combination of generators and loads to be tripped as the best solution for the network to regain a new state of equilibrium that is operationally stable, whilst maintaining supply to as many consumers as possible. System islanding may also be applied if a satisfactory state of equilibrium can not otherwise be obtained. The optimization technique uses transient stability evaluation algorithms, based on time-domain simulation, to assess the fitness of the potential solutions. The test case, presented in this paper, for the optimization technique was the Libyan power system network. In order to show the validity of the optimized defence plan, a comparison between the existing Libyan power system defence plan and the optimized defence plan is presented for the case of a major blackout in the western part of the Libyan power system that took place on 8th November 2003. The results presented in this paper show that a robust defence plan with a satisfactory amount of load shedding and system islands can be obtained by the new technique. The paper also demonstrates that the new defence plan outperforms the existing Libyan power system defence plan.
{"title":"An optimized de ence plan or a power system","authors":"M. El-werfelli, J. Brooks, R. Dunn","doi":"10.1109/UPEC.2008.4651470","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651470","url":null,"abstract":"This paper presents a novel optimization technique for determining the setting of various emergency power system controls. This will allow for the production of a comprehensive defence plan, against events such as cascading blackouts. The goal of this technique is to retrieve a new equilibrium operation point following a severe contingency. In the proposed optimization technique described in this paper the generator tripping, load shedding and islanding are considered as the main emergency control actions. Genetic Algorithm approaches are very successful at solving nonlinear combinatorial optimization problems; these have been applied in this work to produce an optimized defence plan. A Genetic Algorithm approach is used to find the optimal combination of generators and loads to be tripped as the best solution for the network to regain a new state of equilibrium that is operationally stable, whilst maintaining supply to as many consumers as possible. System islanding may also be applied if a satisfactory state of equilibrium can not otherwise be obtained. The optimization technique uses transient stability evaluation algorithms, based on time-domain simulation, to assess the fitness of the potential solutions. The test case, presented in this paper, for the optimization technique was the Libyan power system network. In order to show the validity of the optimized defence plan, a comparison between the existing Libyan power system defence plan and the optimized defence plan is presented for the case of a major blackout in the western part of the Libyan power system that took place on 8th November 2003. The results presented in this paper show that a robust defence plan with a satisfactory amount of load shedding and system islands can be obtained by the new technique. The paper also demonstrates that the new defence plan outperforms the existing Libyan power system defence plan.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132366498","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 : 2008-12-16DOI: 10.1109/UPEC.2008.4651479
Yang Yu, Z. Hao, Baohui Zhang, Bo Zhi-qian
The neutral point potential of the grounding transformer will be changed when HVDC system operates in a dc monopole ground return mode and dc bias may be generated. Dc bias will change exciting currentdasias waveform. Then large quantity of even and odd harmonics will be produced. The harmonics will do harm to the transformer and its protection. This paper uses PSCAD/EMTDC to create a simulation model. It emulates exciting current of a practical 750 kV single-phase transformer in variant cases under dc bias. It studies the distortion of exciting current, harmonic distribution, the peak value of the exciting current under dc bias. Meanwhile, the performance of transformer protection in this harmonic environment is analyzed. The loss made by exciting currentpsilas distortion and elevated temperature rise of core tie-plate are quantitative calculated.
{"title":"The effect research on transformers and protections under HVDC monopole ground operation mode","authors":"Yang Yu, Z. Hao, Baohui Zhang, Bo Zhi-qian","doi":"10.1109/UPEC.2008.4651479","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651479","url":null,"abstract":"The neutral point potential of the grounding transformer will be changed when HVDC system operates in a dc monopole ground return mode and dc bias may be generated. Dc bias will change exciting currentdasias waveform. Then large quantity of even and odd harmonics will be produced. The harmonics will do harm to the transformer and its protection. This paper uses PSCAD/EMTDC to create a simulation model. It emulates exciting current of a practical 750 kV single-phase transformer in variant cases under dc bias. It studies the distortion of exciting current, harmonic distribution, the peak value of the exciting current under dc bias. Meanwhile, the performance of transformer protection in this harmonic environment is analyzed. The loss made by exciting currentpsilas distortion and elevated temperature rise of core tie-plate are quantitative calculated.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122264285","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 : 2008-12-16DOI: 10.1109/UPEC.2008.4651433
S. Sekioka
This paper describes lightning surge propagation characteristics on a nonuniform line are dependent on location. The propagation characteristics of the nonuniform line are different from those of the uniform one due to multiple reflections on the nonuniform line. It is impossible to derive an analytical formula to represent the surge characteristics of the nonuniform line in time domain without assumption and approximation. This paper presents a method to obtain an approximate formula to represent the lightning surges along the nonuniform line using a lattice diagram method.
{"title":"Surge propagation characteristics on nonuniform lines","authors":"S. Sekioka","doi":"10.1109/UPEC.2008.4651433","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651433","url":null,"abstract":"This paper describes lightning surge propagation characteristics on a nonuniform line are dependent on location. The propagation characteristics of the nonuniform line are different from those of the uniform one due to multiple reflections on the nonuniform line. It is impossible to derive an analytical formula to represent the surge characteristics of the nonuniform line in time domain without assumption and approximation. This paper presents a method to obtain an approximate formula to represent the lightning surges along the nonuniform line using a lattice diagram method.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121132236","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 : 2008-12-16DOI: 10.1109/UPEC.2008.4651518
M. Vahid, A. A. Hossein, M. Kazem
In this paper, a problem of optimal capacitor placement and conductor selection is solved for a nonuniform radial distribution system with lateral subfeeders. In this optimization problem the loads of the system is considered to be nonlinear. The voltage of each bus along the feeder after capacitor and conductor installation is calculated for each harmonic order. The total voltage and current harmonic distortions are calculated and added to the fundamental values. The new updated voltage and current values are used to solve for the capacitor and conductor optimal size and location as well as the net dollar savings. The algorithm is applied on a 27-bus radial distribution system with lateral subfeeders, and the results are given for different cases; before and after optimization.
{"title":"Maximum loss reduction applying combination of optimal conductor selection and capacitor placement in distribution systems with nonlinear loads","authors":"M. Vahid, A. A. Hossein, M. Kazem","doi":"10.1109/UPEC.2008.4651518","DOIUrl":"https://doi.org/10.1109/UPEC.2008.4651518","url":null,"abstract":"In this paper, a problem of optimal capacitor placement and conductor selection is solved for a nonuniform radial distribution system with lateral subfeeders. In this optimization problem the loads of the system is considered to be nonlinear. The voltage of each bus along the feeder after capacitor and conductor installation is calculated for each harmonic order. The total voltage and current harmonic distortions are calculated and added to the fundamental values. The new updated voltage and current values are used to solve for the capacitor and conductor optimal size and location as well as the net dollar savings. The algorithm is applied on a 27-bus radial distribution system with lateral subfeeders, and the results are given for different cases; before and after optimization.","PeriodicalId":287461,"journal":{"name":"2008 43rd International Universities Power Engineering Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115116511","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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