Pub Date : 2004-11-29DOI: 10.1109/PECON.2004.1461625
M. Izhar, C. M. Hadzer, M. Syafrudin, S. Taib, S. Idris
This paper presents the results for the performance of passive and active power filter to reduce harmonics in the distribution system. The harmonics analysis is performed in order to observe the percentage reduction of amplitude current harmonics and total harmonic distortion for passive and active power filter at various loads. In addition to that the bidirectional switching is used as a strategy control in active power filter. Representative result of circuit simulations is carried out. The results show that the active power filter can simultaneously attenuate various frequencies and are compared with passive filter which is only filtering an individual harmonics. Also, the significant percentage of reduction for the amplitude current harmonics and total harmonic distortion by active power filter are compared to passive filter. Furthermore, the sinusoidal current waveform quality at distribution lines which filtered by active power filter is better compared with passive filter. Therefore, the active power filter is good to reduce harmonics in the electrical distribution systems.
{"title":"Performance for passive and active power filter in reducing harmonics in the distribution system","authors":"M. Izhar, C. M. Hadzer, M. Syafrudin, S. Taib, S. Idris","doi":"10.1109/PECON.2004.1461625","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461625","url":null,"abstract":"This paper presents the results for the performance of passive and active power filter to reduce harmonics in the distribution system. The harmonics analysis is performed in order to observe the percentage reduction of amplitude current harmonics and total harmonic distortion for passive and active power filter at various loads. In addition to that the bidirectional switching is used as a strategy control in active power filter. Representative result of circuit simulations is carried out. The results show that the active power filter can simultaneously attenuate various frequencies and are compared with passive filter which is only filtering an individual harmonics. Also, the significant percentage of reduction for the amplitude current harmonics and total harmonic distortion by active power filter are compared to passive filter. Furthermore, the sinusoidal current waveform quality at distribution lines which filtered by active power filter is better compared with passive filter. Therefore, the active power filter is good to reduce harmonics in the electrical distribution systems.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133481685","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 : 2004-11-29DOI: 10.1109/PECON.2004.1461644
L. W. Chung, M. Siam, A. Ismail, Z. Hussien
This paper presents an overview of sodium-sulfur NAS battery used for battery energy storage system and custom power devices for power quality applications. Several electrical battery models are reviewed and discussed. Using one of the most accurate electrical battery models, the voltage-current behavior and characteristics of NAS battery are modeled and simulated using EMTDC/PSCAD software tool. Comparison between simulation and experimental results are presented for a 50 kW battery model to validate the simulation model and to analyze NAS battery output performance with respect to battery's depth of discharge and temperature change.
{"title":"Modeling and simulation of sodium sulfur battery for battery-energy storage system and custom power devices","authors":"L. W. Chung, M. Siam, A. Ismail, Z. Hussien","doi":"10.1109/PECON.2004.1461644","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461644","url":null,"abstract":"This paper presents an overview of sodium-sulfur NAS battery used for battery energy storage system and custom power devices for power quality applications. Several electrical battery models are reviewed and discussed. Using one of the most accurate electrical battery models, the voltage-current behavior and characteristics of NAS battery are modeled and simulated using EMTDC/PSCAD software tool. Comparison between simulation and experimental results are presented for a 50 kW battery model to validate the simulation model and to analyze NAS battery output performance with respect to battery's depth of discharge and temperature change.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126107255","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 : 2004-11-29DOI: 10.1109/PECON.2004.1461657
M.S.A. Abdul Wahab, I. Musirin, T. Rahman, M. Latip
This paper presents a new approach to the use of load flow by proposing the incorporation of the genetic algorithms (GAs) to search the optimal transformer tap setting in order to minimize the line losses. In this way, the choice of the transformer tap setting can be determined whilst minimizing losses and at the same time improved the voltage profile in the power system. The performance of this genetic algorithms technique was tested using standard IEEE 6-bus system and analysis of results is presented.
{"title":"Genetic algorithm based optimal on load transformer tap setting for loss minimization in power transmission system","authors":"M.S.A. Abdul Wahab, I. Musirin, T. Rahman, M. Latip","doi":"10.1109/PECON.2004.1461657","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461657","url":null,"abstract":"This paper presents a new approach to the use of load flow by proposing the incorporation of the genetic algorithms (GAs) to search the optimal transformer tap setting in order to minimize the line losses. In this way, the choice of the transformer tap setting can be determined whilst minimizing losses and at the same time improved the voltage profile in the power system. The performance of this genetic algorithms technique was tested using standard IEEE 6-bus system and analysis of results is presented.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122570097","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 : 2004-11-29DOI: 10.1109/PECON.2004.1461626
N. Mariun, A. Alam, S. Mahmod, H. Hizam
Active power filter appears to be a viable solution for power quality conditioning. With the emergence of fast computing devices, control strategies for active filters are continually changing aiming at near perfect compensation. This paper presents a review of the state-of-the-art control techniques in active filters and reactive power compensation. Considerable attention is paid to the reference voltage/current estimation and control strategies. Several techniques are discussed and compared in terms of performance and implementation.
{"title":"Review of control strategies for power quality conditioners","authors":"N. Mariun, A. Alam, S. Mahmod, H. Hizam","doi":"10.1109/PECON.2004.1461626","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461626","url":null,"abstract":"Active power filter appears to be a viable solution for power quality conditioning. With the emergence of fast computing devices, control strategies for active filters are continually changing aiming at near perfect compensation. This paper presents a review of the state-of-the-art control techniques in active filters and reactive power compensation. Considerable attention is paid to the reference voltage/current estimation and control strategies. Several techniques are discussed and compared in terms of performance and implementation.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124122882","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 : 2004-11-29DOI: 10.1109/PECON.2004.1461617
Hendri Masdi, Norman Mariun, S. Mahmud, Azah Mohamed, S. Yusuf
This paper presents the design of a prototype distribution static compensator (D-STATCOM) for voltage sag mitigation in an unbalanced distribution system. The D-STATCOM is intended to replace the widely used static Var compensator (SVC). For fast response requirement, the feedforward compensation scheme is employed to enable the D-STATCOM to mitigate voltage sag and at the same time correct the power factor, thus acting as a load compensator. The compensation scheme of the D-STATCOM is derived using the symmetrical component method. In this work, the 12-pulse D-STATCOM configuration with IGBT has been designed and the graphic based models of the D-STATCOM have been developed using the PSCAD/EMTDC electromagnetic transient simulation program. Accordingly, simulations are first carried out to illustrate the use of D-STATCOM in mitigating voltage sag in a distribution system. Simulation results prove that the D-STATCOM is capable of mitigating voltage sag as well as improving power quality of a system.
{"title":"Design of a prototype D-STATCOM for voltage sag mitigation","authors":"Hendri Masdi, Norman Mariun, S. Mahmud, Azah Mohamed, S. Yusuf","doi":"10.1109/PECON.2004.1461617","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461617","url":null,"abstract":"This paper presents the design of a prototype distribution static compensator (D-STATCOM) for voltage sag mitigation in an unbalanced distribution system. The D-STATCOM is intended to replace the widely used static Var compensator (SVC). For fast response requirement, the feedforward compensation scheme is employed to enable the D-STATCOM to mitigate voltage sag and at the same time correct the power factor, thus acting as a load compensator. The compensation scheme of the D-STATCOM is derived using the symmetrical component method. In this work, the 12-pulse D-STATCOM configuration with IGBT has been designed and the graphic based models of the D-STATCOM have been developed using the PSCAD/EMTDC electromagnetic transient simulation program. Accordingly, simulations are first carried out to illustrate the use of D-STATCOM in mitigating voltage sag in a distribution system. Simulation results prove that the D-STATCOM is capable of mitigating voltage sag as well as improving power quality of a system.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132554037","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 : 2004-11-29DOI: 10.1109/PECON.2004.1461627
C. Nge, Z. Salam
This paper proposes a modified natural commutated control HF link inverter topology that consists of a center-tapped transformer and three bidirectional switching arms on the transformer secondary side. The topology is able to simultaneously utilize unipolar SPWM control scheme and natural commutation techniques. The conversion efficiency is inherently high due to the existence of freewheeling periods per switching cycle and the utilization of zero current switching (ZCS) and zero voltage switching (ZVS) operation. Moreover, with minimum number of power switches at cycloconverter stage, the conduction loss can be further reduced. The operating principles of the proposed topology and control scheme are discussed and verified by simulation results.
{"title":"Unipolar SPWM HF link soft switching DC/AC converter","authors":"C. Nge, Z. Salam","doi":"10.1109/PECON.2004.1461627","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461627","url":null,"abstract":"This paper proposes a modified natural commutated control HF link inverter topology that consists of a center-tapped transformer and three bidirectional switching arms on the transformer secondary side. The topology is able to simultaneously utilize unipolar SPWM control scheme and natural commutation techniques. The conversion efficiency is inherently high due to the existence of freewheeling periods per switching cycle and the utilization of zero current switching (ZCS) and zero voltage switching (ZVS) operation. Moreover, with minimum number of power switches at cycloconverter stage, the conduction loss can be further reduced. The operating principles of the proposed topology and control scheme are discussed and verified by simulation results.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126873393","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 : 2004-11-29DOI: 10.1109/PECON.2004.1461640
I.N. Perumal, C. C. Ying
Electric load shedding is implemented to maintain the generation power margin at nominated level when load demand is higher than electric supply. This prevents the widespread system collapse when a fault occurs. The scope of study consists of system analysis, design and simulation. Dynamic simulations are performed using the ERACS power analysis software. When the frequency falls below preset level at a certain rate, a predetermined amount of load will be removed to restore the system frequency. Important design considerations for this scheme are the maximum anticipated overload, number of load shedding steps, size of load shed at each step and frequency relay settings. Load restoration after load shedding can only be executed after the system has recovered completely and its normal frequency is restored. Loads should be restored in small blocks sequenced by time delay between successive restorations to allow frequency stabilization. A case study is carried out on PETRONAS Penapisan Melaka, whereby a load shedding scheme is designed for its upcoming cogeneration plant. Dynamic simulations performed indicate that the load shedding design is feasible and able to halt frequency collapse due to generation loss. The design strategy, calculations and justification are presented in this paper.
{"title":"A proposed strategy of implementation for load shedding and load recovery with dynamic simulations","authors":"I.N. Perumal, C. C. Ying","doi":"10.1109/PECON.2004.1461640","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461640","url":null,"abstract":"Electric load shedding is implemented to maintain the generation power margin at nominated level when load demand is higher than electric supply. This prevents the widespread system collapse when a fault occurs. The scope of study consists of system analysis, design and simulation. Dynamic simulations are performed using the ERACS power analysis software. When the frequency falls below preset level at a certain rate, a predetermined amount of load will be removed to restore the system frequency. Important design considerations for this scheme are the maximum anticipated overload, number of load shedding steps, size of load shed at each step and frequency relay settings. Load restoration after load shedding can only be executed after the system has recovered completely and its normal frequency is restored. Loads should be restored in small blocks sequenced by time delay between successive restorations to allow frequency stabilization. A case study is carried out on PETRONAS Penapisan Melaka, whereby a load shedding scheme is designed for its upcoming cogeneration plant. Dynamic simulations performed indicate that the load shedding design is feasible and able to halt frequency collapse due to generation loss. The design strategy, calculations and justification are presented in this paper.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117068914","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 : 2004-11-29DOI: 10.1109/PECON.2004.1461641
Norhamimi, Musse Mohamud Ahmed, I. Hassan
Power generation business profit depends on the power systems operational costs. Finding an optimal solution to the unit commitment (UC) and economic load dispatch (ELD) is one of the smart strategies that being practiced by most of power producers. UC and ELD main problems are to find the minimum total fuel cost and fast computation simulation time scheduling of UC and ELD. Obtaining the best solution to these two problems lead to remarkable saving in the power system operational cost Lagrangian relaxation (LR) is one of the best solution methods to UC and ELD problems. The approach is more efficient and easier than other methods in solving large-scale problems. Lately, the emerging of bundling methods (BM) improves the weakness of LR. Through BM, the LR dual functions are updated at the higher level. With the use of interior point method as an initialization method this paper presents LR and BM based solution technique to UC and ELD problems. It is based on application of the said techniques to thermal units consisting of 45 generators. A comparison has been made with a data taken from Tenaga Nasional Berhad (TNB) and the results found from this system have been compared to that of TNB results.
发电企业的利润取决于电力系统的运行成本。寻找机组承诺(UC)和经济负荷调度(ELD)的最优解决方案是大多数发电企业正在实践的智能策略之一。UC和ELD的主要问题是寻找最小的总燃料成本和快速计算模拟UC和ELD的时间调度。拉格朗日松弛法(LR)是解决UC和ELD问题的最佳方法之一。在解决大规模问题时，这种方法比其他方法更有效、更容易。近年来，捆绑方法(BM)的出现改善了LR的缺点。通过BM, LR的双重功能在更高层次上得到更新。本文采用内点法作为初始化方法，提出了基于LR和BM的UC和ELD问题求解技术。它是基于上述技术在由45台发电机组成的热机组上的应用。与Tenaga Nasional Berhad (TNB)的数据进行了比较，并将该系统的结果与TNB的结果进行了比较。
{"title":"Costs optimization for unit commitment and economic load dispatch in large scale power systems","authors":"Norhamimi, Musse Mohamud Ahmed, I. Hassan","doi":"10.1109/PECON.2004.1461641","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461641","url":null,"abstract":"Power generation business profit depends on the power systems operational costs. Finding an optimal solution to the unit commitment (UC) and economic load dispatch (ELD) is one of the smart strategies that being practiced by most of power producers. UC and ELD main problems are to find the minimum total fuel cost and fast computation simulation time scheduling of UC and ELD. Obtaining the best solution to these two problems lead to remarkable saving in the power system operational cost Lagrangian relaxation (LR) is one of the best solution methods to UC and ELD problems. The approach is more efficient and easier than other methods in solving large-scale problems. Lately, the emerging of bundling methods (BM) improves the weakness of LR. Through BM, the LR dual functions are updated at the higher level. With the use of interior point method as an initialization method this paper presents LR and BM based solution technique to UC and ELD problems. It is based on application of the said techniques to thermal units consisting of 45 generators. A comparison has been made with a data taken from Tenaga Nasional Berhad (TNB) and the results found from this system have been compared to that of TNB results.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124852515","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 : 2004-11-29DOI: 10.1109/PECON.2004.1461619
N. D. Muhamad, A. Yatim, A.J. Shafie
A new approach to using PSPICE in designing DC-DC converter systems is introduced in this paper. In this new approach, the power stage and control loop design equations are programmed in PSPICE. For this purpose, an option available in PSPICE called analog behavioral modeling (ABM) is used. By doing so, the parameter of power stage and the component values of the error amplifier can be easily obtained by means of PSPICE DC analysis. The methodology of development is presented in some detail. A design example is included to demonstrate the effectiveness of the proposed approach In designing DC-DC converter systems.
{"title":"A PSPICE-based design of DC-DC converter systems","authors":"N. D. Muhamad, A. Yatim, A.J. Shafie","doi":"10.1109/PECON.2004.1461619","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461619","url":null,"abstract":"A new approach to using PSPICE in designing DC-DC converter systems is introduced in this paper. In this new approach, the power stage and control loop design equations are programmed in PSPICE. For this purpose, an option available in PSPICE called analog behavioral modeling (ABM) is used. By doing so, the parameter of power stage and the component values of the error amplifier can be easily obtained by means of PSPICE DC analysis. The methodology of development is presented in some detail. A design example is included to demonstrate the effectiveness of the proposed approach In designing DC-DC converter systems.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124115451","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 : 2004-11-29DOI: 10.1109/PECON.2004.1461656
N. Mahamad, M. Hadzer, Syafrudin Masri
In recent years, harmonics are considered as one of the most essential problems in electrical power systems. Even though, this new highly efficient electronic technology provides improved product quality with increased productivity by the use of smaller and lighter electrical components but they are the sources of harmonics. Recent surveys on the three-phase four-wire electric power distribution systems with computer and nonlinear loads show excessive currents in the neutral conductor. The neutral currents are basically zero-sequence current harmonics, which is mostly, consists of triplen current harmonics. As a result, the perfect sinusoidal voltage and current waveform are very much distorted. To solve this problem, a simple and practical approach to reduce harmonics current in 3-phase 4-wire power distribution system is proposed. The using of LC filter in three-phase four-wire system reduces the harmonic problem in the system. This LC filter is depending on value of capacitor and inductor. It is not only reducing zero-sequence harmonics but also reduce other harmonics in the system. Besides that, this application also can improve power factor and reduced the THD system to the standard IEEE-std 519. The practical excellency and validity of reducing are demonstrated experimentally.
{"title":"Application of LC filter in harmonics reduction","authors":"N. Mahamad, M. Hadzer, Syafrudin Masri","doi":"10.1109/PECON.2004.1461656","DOIUrl":"https://doi.org/10.1109/PECON.2004.1461656","url":null,"abstract":"In recent years, harmonics are considered as one of the most essential problems in electrical power systems. Even though, this new highly efficient electronic technology provides improved product quality with increased productivity by the use of smaller and lighter electrical components but they are the sources of harmonics. Recent surveys on the three-phase four-wire electric power distribution systems with computer and nonlinear loads show excessive currents in the neutral conductor. The neutral currents are basically zero-sequence current harmonics, which is mostly, consists of triplen current harmonics. As a result, the perfect sinusoidal voltage and current waveform are very much distorted. To solve this problem, a simple and practical approach to reduce harmonics current in 3-phase 4-wire power distribution system is proposed. The using of LC filter in three-phase four-wire system reduces the harmonic problem in the system. This LC filter is depending on value of capacitor and inductor. It is not only reducing zero-sequence harmonics but also reduce other harmonics in the system. Besides that, this application also can improve power factor and reduced the THD system to the standard IEEE-std 519. The practical excellency and validity of reducing are demonstrated experimentally.","PeriodicalId":375856,"journal":{"name":"PECon 2004. Proceedings. National Power and Energy Conference, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126253938","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：