Pub Date : 2010-11-09DOI: 10.1109/ICHQP.2010.5625367
A. B. Vasconcellos, T. I. R. de C. Malheiro, B. Castillo, A. da Silva, A. Festa, F. Gomes
The processing of information through the use of digital equipment and computer technology is largely responsible for the technological advancement, which has reflected in the improvement of the quality of life of the population. As a consequence, there was an increasing use of nonlinear loads in all sectors, particularly in systems for broadcast TV. The knowledge of the response of these loads is important in the search for solutions aimed at improving the quality of electric power. This paper presents measurements on a bus that feeds nonlinear loads in common facilities of a TV relay station and analyze the harmonic distortion of current and whether the individual harmonic distortion and total pressure are in accordance with Resolution 345/2008 by National Agency of Electrical Energy (ANEEL).
{"title":"Analysis of power quality in a system of relay TV","authors":"A. B. Vasconcellos, T. I. R. de C. Malheiro, B. Castillo, A. da Silva, A. Festa, F. Gomes","doi":"10.1109/ICHQP.2010.5625367","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625367","url":null,"abstract":"The processing of information through the use of digital equipment and computer technology is largely responsible for the technological advancement, which has reflected in the improvement of the quality of life of the population. As a consequence, there was an increasing use of nonlinear loads in all sectors, particularly in systems for broadcast TV. The knowledge of the response of these loads is important in the search for solutions aimed at improving the quality of electric power. This paper presents measurements on a bus that feeds nonlinear loads in common facilities of a TV relay station and analyze the harmonic distortion of current and whether the individual harmonic distortion and total pressure are in accordance with Resolution 345/2008 by National Agency of Electrical Energy (ANEEL).","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126244896","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 : 2010-11-09DOI: 10.1109/ICHQP.2010.5625324
C. Barbulescu, S. Kilyeni, D. Jigoria-Oprea, N. Chiosa
Within the paper, the authors deal with electric substation ancillary services power consumption analysis. They are focusing on load curve numerical processing. A real case study is discussed, Timisoara 400/220/110 kV substation, the consumers being supplied from the autotransformer tertiary winding. The parameters specific to ancillary services load curves are computed using a software tool developed in Matlab, based on the monitored results. Several additional issues are tackled: numerical approximation of load curve, consumed energy computing through numerical integration and load curve forecasting. To achieve this goal, a software tool in Delphi environment has been developed. The results are discussed and the appropriate conclusions are highlighted.
{"title":"Electric substation ancillary services power consumption analysis. Case study: Timisoara 400/220/110 kV substation","authors":"C. Barbulescu, S. Kilyeni, D. Jigoria-Oprea, N. Chiosa","doi":"10.1109/ICHQP.2010.5625324","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625324","url":null,"abstract":"Within the paper, the authors deal with electric substation ancillary services power consumption analysis. They are focusing on load curve numerical processing. A real case study is discussed, Timisoara 400/220/110 kV substation, the consumers being supplied from the autotransformer tertiary winding. The parameters specific to ancillary services load curves are computed using a software tool developed in Matlab, based on the monitored results. Several additional issues are tackled: numerical approximation of load curve, consumed energy computing through numerical integration and load curve forecasting. To achieve this goal, a software tool in Delphi environment has been developed. The results are discussed and the appropriate conclusions are highlighted.","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126788129","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 : 2010-11-09DOI: 10.1109/ICHQP.2010.5625312
L. Luna, L. Gallego, M. Romero
This paper proposes a methodology to identify critical zones in electric distribution systems due to sag activity. The methodology is based on the acquisition of Power Quality (PQ) information in substation buses, measurements that are obtained through a PQ analysis system demanded by the Colombian regulator CREG1 to all electric distribution companies of the country. The methodology is developed in three stages. The first stage consists in a preprocessing of sag events data and its proper organization in a PQ database. Next, the sag activity assessment in each substation bus is achieved as a function of both, the number of times that each substation bus was the cause of a sag event and the number of substation buses affected by that particular sag event. Finally, a geographical identification by means of sag maps where the electric companies may focus their efforts to improve PQ. This methodology was applied to the whole electric distribution system in Bogota-Colombia, showing some interesting results.
{"title":"Evaluation and identification of critical zones due to sag activity","authors":"L. Luna, L. Gallego, M. Romero","doi":"10.1109/ICHQP.2010.5625312","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625312","url":null,"abstract":"This paper proposes a methodology to identify critical zones in electric distribution systems due to sag activity. The methodology is based on the acquisition of Power Quality (PQ) information in substation buses, measurements that are obtained through a PQ analysis system demanded by the Colombian regulator CREG1 to all electric distribution companies of the country. The methodology is developed in three stages. The first stage consists in a preprocessing of sag events data and its proper organization in a PQ database. Next, the sag activity assessment in each substation bus is achieved as a function of both, the number of times that each substation bus was the cause of a sag event and the number of substation buses affected by that particular sag event. Finally, a geographical identification by means of sag maps where the electric companies may focus their efforts to improve PQ. This methodology was applied to the whole electric distribution system in Bogota-Colombia, showing some interesting results.","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123778461","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 : 2010-11-09DOI: 10.1109/ICHQP.2010.5625374
J. E. L. Almeida, P. M. Silveira, H. Arango, M. Parentoni, J. Abreu
This paper may be considered as a continuation of the paper “A new IEEE Std 1459-2000 - Compatible time-domain formulation for apparent power” published in Electric Power Systems Research from Elsevier. It also presents the development of new time-domain equations related to the definition of apparent power however using collective rms values and using polar coordinates values. These equations give exactly the same results of IEEE Std 1459-2000 and FBD methods. All of them have no restriction with regard to asymmetric, unbalanced and/or distorted signals. The application of these formulations involves an adequate quantity of samples, obeying the Nyquist Criterion, which can be used in numeric meters for power measurements. One of the advantages of using these formulations presented in this paper is their simplicity. The polar coordinate decomposition, for example, uses only basic mathematics operations. Illustrative examples using simulation cases are showed, which have confirmed that the equations in time-domain here developed are corrected and that both principal approaches, American (IEEE Std 1459) and European (FBD method), lead to similar results, with a small divergence only if the voltage homopolar component is present.
{"title":"Time-domain formulations for apparent power using collective rms and polar coordinates","authors":"J. E. L. Almeida, P. M. Silveira, H. Arango, M. Parentoni, J. Abreu","doi":"10.1109/ICHQP.2010.5625374","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625374","url":null,"abstract":"This paper may be considered as a continuation of the paper “A new IEEE Std 1459-2000 - Compatible time-domain formulation for apparent power” published in Electric Power Systems Research from Elsevier. It also presents the development of new time-domain equations related to the definition of apparent power however using collective rms values and using polar coordinates values. These equations give exactly the same results of IEEE Std 1459-2000 and FBD methods. All of them have no restriction with regard to asymmetric, unbalanced and/or distorted signals. The application of these formulations involves an adequate quantity of samples, obeying the Nyquist Criterion, which can be used in numeric meters for power measurements. One of the advantages of using these formulations presented in this paper is their simplicity. The polar coordinate decomposition, for example, uses only basic mathematics operations. Illustrative examples using simulation cases are showed, which have confirmed that the equations in time-domain here developed are corrected and that both principal approaches, American (IEEE Std 1459) and European (FBD method), lead to similar results, with a small divergence only if the voltage homopolar component is present.","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122142609","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 : 2010-11-09DOI: 10.1109/ICHQP.2010.5625414
M. Lima, J. R. de Carvalho, D. Coury, A. Cerqueira, C. Duque
This paper presents a resampling method based on time-domain interpolation with applications in harmonic analysis in the time-varying frequency scenario. The method dynamically determines the resampling moments of a given signal that was originally sampled at a fixed rate. This process is based on real-time frequency tracking (fundamental component) by means of a PLL (Phase-Locked Loop) structure. Then, the values of the signal in the resampling moments are approximated by piecewise polynomials interpolation functions (Splines). This process is performed in an iterative way, so that a period of the resampled signal always contains the same integer number N of samples. The performance of the method for real-time harmonics tracking in common situations of asynchronous sampling is evaluated by applying the DFT (Discrete Fourier Transform) in the resampled signal using sliding windows. The simulation results show that the use of the method can effectively reduce the energy spreading effect (leakage) caused by asynchronous sampling and improve the estimates accuracy of the analyzed signal harmonics components significantly.
{"title":"A method of Dynamic Resampling for DFT-based harmonic analysis under time-varying frequency conditions","authors":"M. Lima, J. R. de Carvalho, D. Coury, A. Cerqueira, C. Duque","doi":"10.1109/ICHQP.2010.5625414","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625414","url":null,"abstract":"This paper presents a resampling method based on time-domain interpolation with applications in harmonic analysis in the time-varying frequency scenario. The method dynamically determines the resampling moments of a given signal that was originally sampled at a fixed rate. This process is based on real-time frequency tracking (fundamental component) by means of a PLL (Phase-Locked Loop) structure. Then, the values of the signal in the resampling moments are approximated by piecewise polynomials interpolation functions (Splines). This process is performed in an iterative way, so that a period of the resampled signal always contains the same integer number N of samples. The performance of the method for real-time harmonics tracking in common situations of asynchronous sampling is evaluated by applying the DFT (Discrete Fourier Transform) in the resampled signal using sliding windows. The simulation results show that the use of the method can effectively reduce the energy spreading effect (leakage) caused by asynchronous sampling and improve the estimates accuracy of the analyzed signal harmonics components significantly.","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123173015","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 : 2010-11-09DOI: 10.1109/ICHQP.2010.5625382
A. Cerqueira, M. Lima, M. Salmento, Julio V. de Souza, D. Coury
In this work, a new method for PQ analysis is proposed based on the use of neural processing aiming to decouple the information from different disturbances from the power system signal. The system was implemented and tested using a simulated database showing the good performance of the proposed technique for signal separation. It was shown that the proposed method could also be used as a preprocessing technique for PQ monitoring systems.
{"title":"Nonlinear filtering for Power Quality disturbances analysis","authors":"A. Cerqueira, M. Lima, M. Salmento, Julio V. de Souza, D. Coury","doi":"10.1109/ICHQP.2010.5625382","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625382","url":null,"abstract":"In this work, a new method for PQ analysis is proposed based on the use of neural processing aiming to decouple the information from different disturbances from the power system signal. The system was implemented and tested using a simulated database showing the good performance of the proposed technique for signal separation. It was shown that the proposed method could also be used as a preprocessing technique for PQ monitoring systems.","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130371462","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 : 2010-11-09DOI: 10.1109/ICHQP.2010.5625399
P. Nicolae, I. Nicolae
One presents some aspects related to the behavior of a three-phase power transformer used in the excitation circuit of a power group. The excitation transformer is directly supplied from the three-phase generator terminals. It supplies a fully controlled rectifier with thyristors, through which the main generator's excitation winding is supplied. The currents flowing through the primary and secondary windings of the excitation transformer are recorded. The data acquisition systems used during the recording process were especially designed and realized for this application. Using an original software, the recorded waveforms for currents and voltages were processed. The significant harmonic distortion from the transformer's primary and secondary winding proves their significant distorting regime, that affects their lifetime.
{"title":"On harmonics from a power transformer used in the excitation circuit of a power group","authors":"P. Nicolae, I. Nicolae","doi":"10.1109/ICHQP.2010.5625399","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625399","url":null,"abstract":"One presents some aspects related to the behavior of a three-phase power transformer used in the excitation circuit of a power group. The excitation transformer is directly supplied from the three-phase generator terminals. It supplies a fully controlled rectifier with thyristors, through which the main generator's excitation winding is supplied. The currents flowing through the primary and secondary windings of the excitation transformer are recorded. The data acquisition systems used during the recording process were especially designed and realized for this application. Using an original software, the recorded waveforms for currents and voltages were processed. The significant harmonic distortion from the transformer's primary and secondary winding proves their significant distorting regime, that affects their lifetime.","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124692192","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 : 2010-11-09DOI: 10.1109/ICHQP.2010.5625448
L. Piegari, P. Tricoli
This paper deals with the use of grid-connected photovoltaic (PV) power plants for supplying the ancillary service of reactive power compensation to the distribution grid. A control strategy has been developed for controlling both real and reactive power exchanged with the distribution network. The paper suggests how the real and reactive power references should be selected in order to maximize the electrical energy generated by PV arrays and to exploit the apparent power of the inverter close to its rated value. The choice suggested for reference signals allows reactive power compensation service also when the solar irradiation is negligible. The control strategy is then applied to a sample grid-connected PV unit, which has been simulated in Simulink environment. Numerical simulations show that, using an adaptive Perturb & Observe algorithm, the maximum power point tracking is achieved in about 2 seconds, both at starting and when the irradiation changes. The inverter is also capable of giving without interruptions the reactive power support to the grid, reducing grid currents and voltage drops along the line respect to the classical configuration where no reactive compensation is present.
{"title":"A control algorithm of power converters in smart-grids for providing uninterruptible ancillary services","authors":"L. Piegari, P. Tricoli","doi":"10.1109/ICHQP.2010.5625448","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625448","url":null,"abstract":"This paper deals with the use of grid-connected photovoltaic (PV) power plants for supplying the ancillary service of reactive power compensation to the distribution grid. A control strategy has been developed for controlling both real and reactive power exchanged with the distribution network. The paper suggests how the real and reactive power references should be selected in order to maximize the electrical energy generated by PV arrays and to exploit the apparent power of the inverter close to its rated value. The choice suggested for reference signals allows reactive power compensation service also when the solar irradiation is negligible. The control strategy is then applied to a sample grid-connected PV unit, which has been simulated in Simulink environment. Numerical simulations show that, using an adaptive Perturb & Observe algorithm, the maximum power point tracking is achieved in about 2 seconds, both at starting and when the irradiation changes. The inverter is also capable of giving without interruptions the reactive power support to the grid, reducing grid currents and voltage drops along the line respect to the classical configuration where no reactive compensation is present.","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130295209","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 : 2010-11-09DOI: 10.1109/ICHQP.2010.5625424
A. Gil-de-Castro, A. Moreno-Muñoz, J. J. G. D. L. Rosa
In this paper, several high power lighting networks based on high pressures sodium (HPS) lamps with rated lamp powers of 70, 150 and 250 W have been set up. They have also been tested with different levels of power using dimming for a 220 V power supply. These have been chosen because of they are used in public lighting. Each luminaire consists of sodium lamp with dimmable electronic ballast, which can dim the lamp output smoothly and uniformly. This paper focuses on the harmonic characterization of modern HPS lamps connected to dimmable electronic ballasts. Harmonics under full and reduced power for several HPS lamps have been measured. It presents an investigation on the attenuation effect and a proposal of an index called the equivalent lamp index to characterize this effect on HPS lamps. Also it is concluded that using a combination of HPS lamps can result in a reduction of the current distortion.
{"title":"Characterizing the harmonic attenuation effect of high-pressure sodium lamps","authors":"A. Gil-de-Castro, A. Moreno-Muñoz, J. J. G. D. L. Rosa","doi":"10.1109/ICHQP.2010.5625424","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625424","url":null,"abstract":"In this paper, several high power lighting networks based on high pressures sodium (HPS) lamps with rated lamp powers of 70, 150 and 250 W have been set up. They have also been tested with different levels of power using dimming for a 220 V power supply. These have been chosen because of they are used in public lighting. Each luminaire consists of sodium lamp with dimmable electronic ballast, which can dim the lamp output smoothly and uniformly. This paper focuses on the harmonic characterization of modern HPS lamps connected to dimmable electronic ballasts. Harmonics under full and reduced power for several HPS lamps have been measured. It presents an investigation on the attenuation effect and a proposal of an index called the equivalent lamp index to characterize this effect on HPS lamps. Also it is concluded that using a combination of HPS lamps can result in a reduction of the current distortion.","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134623354","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 : 2010-11-09DOI: 10.1109/ICHQP.2010.5625409
S. Kocman, V. Kolář, T. Trung Vo
Multi-pulses rectifiers are one of the technical solutions for harmonic mitigation in AC adjustable speed drives. 12-pulse, 18-pulse and 24-pulse rectifier topologies are used in various technical applications. The paper presents results from experimental measurements and results from simulations for two topologies of the eighteen-pulse rectifiers: with Dy1z1+200z1−200 and with Dd0diii0+200diii0−200 transformers. To simulate the behavior of the both eighteen-pulse rectifiers under various levels of voltage distortion a program written in FORTRAN in EMTP-ATP simulation program has been developed. Both experimental measurements and simulations demonstrate their high harmonic mitigation effectiveness. A comparison of the eighteen-pulse rectifiers with some other techniques for harmonic mitigation is also shown in the paper.
{"title":"Eighteen-pulse rectifiers for harmonic mitigation","authors":"S. Kocman, V. Kolář, T. Trung Vo","doi":"10.1109/ICHQP.2010.5625409","DOIUrl":"https://doi.org/10.1109/ICHQP.2010.5625409","url":null,"abstract":"Multi-pulses rectifiers are one of the technical solutions for harmonic mitigation in AC adjustable speed drives. 12-pulse, 18-pulse and 24-pulse rectifier topologies are used in various technical applications. The paper presents results from experimental measurements and results from simulations for two topologies of the eighteen-pulse rectifiers: with Dy1z1+200z1−200 and with Dd0diii0+200diii0−200 transformers. To simulate the behavior of the both eighteen-pulse rectifiers under various levels of voltage distortion a program written in FORTRAN in EMTP-ATP simulation program has been developed. Both experimental measurements and simulations demonstrate their high harmonic mitigation effectiveness. A comparison of the eighteen-pulse rectifiers with some other techniques for harmonic mitigation is also shown in the paper.","PeriodicalId":180078,"journal":{"name":"Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129436461","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：